Merge feature/demo-mode: virtual hardware sandbox for testing

Demo mode provides a complete sandbox environment with:
- Virtual capture engine (radial rainbow test pattern on 3 displays)
- Virtual audio engine (synthetic music-like audio on 2 devices)
- Virtual LED device provider (strip/60, matrix/256, ring/24 LEDs)
- Isolated data directory (data/demo/) with auto-seeded sample entities
- Dedicated config (config/demo_config.yaml) with pre-configured API key
- Frontend indicator (DEMO badge + dismissible banner)
- Engine filtering (only demo engines visible in demo mode)
- Separate entry point: python -m wled_controller.demo (port 8081)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -0,0 +1,74 @@
+name: Build Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Build portable distribution
+        shell: pwsh
+        run: |
+          .\build-dist.ps1 -Version "${{ gitea.ref_name }}"
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: LedGrab-${{ gitea.ref_name }}-win-x64
+          path: build/LedGrab-*.zip
+          retention-days: 90
+
+      - name: Create Gitea release
+        shell: pwsh
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          $tag = "${{ gitea.ref_name }}"
+          $zipFile = Get-ChildItem "build\LedGrab-*.zip" | Select-Object -First 1
+          if (-not $zipFile) { throw "ZIP not found" }
+
+          $baseUrl = "${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}"
+          $headers = @{
+            "Authorization" = "token $env:GITEA_TOKEN"
+            "Content-Type"  = "application/json"
+          }
+
+          # Create release
+          $body = @{
+            tag_name   = $tag
+            name       = "LedGrab $tag"
+            body       = "Portable Windows build — unzip, run ``LedGrab.bat``, open http://localhost:8080"
+            draft      = $false
+            prerelease = ($tag -match '(alpha|beta|rc)')
+          } | ConvertTo-Json
+
+          $release = Invoke-RestMethod -Method Post `
+            -Uri "$baseUrl/releases" `
+            -Headers $headers -Body $body
+
+          Write-Host "Created release: $($release.html_url)"
+
+          # Upload ZIP asset
+          $uploadHeaders = @{
+            "Authorization" = "token $env:GITEA_TOKEN"
+          }
+          $uploadUrl = "$baseUrl/releases/$($release.id)/assets?name=$($zipFile.Name)"
+          Invoke-RestMethod -Method Post -Uri $uploadUrl `
+            -Headers $uploadHeaders `
+            -ContentType "application/octet-stream" `
+            -InFile $zipFile.FullName
+
+          Write-Host "Uploaded: $($zipFile.Name)"

.github/workflows/validate.yml

@@ -1,17 +0,0 @@
-name: Validate
-
-on:
-  push:
-  pull_request:
-  schedule:
-    - cron: "0 0 * * *"
-
-jobs:
-  validate:
-    runs-on: "ubuntu-latest"
-    steps:
-      - uses: "actions/checkout@v3"
-      - name: HACS validation
-        uses: "hacs/action@main"
-        with:
-          category: "integration"

.gitignore

@@ -26,6 +26,9 @@ ENV/
 env/
 .venv
 
+# Node
+node_modules/
+
 # IDE
 .vscode/
 .idea/

BRAINSTORM.md

@@ -0,0 +1,118 @@
+# Feature Brainstorm — LED Grab
+
+## New Automation Conditions (Profiles)
+
+Right now profiles only trigger on **app detection**. High-value additions:
+
+- **Time-of-day / Schedule** — "warm tones after sunset, off at midnight." Schedule-based value sources pattern already exists
+- **Display state** — detect monitor on/off/sleep, auto-stop targets when display is off
+- **System idle** — dim or switch to ambient effect after N minutes of no input
+- **Sunrise/sunset** — fetch local solar times, drive circadian color temperature shifts
+- **Webhook/MQTT trigger** — let external systems activate profiles without HA integration
+
+## New Output Targets
+
+Currently: WLED, Adalight, AmbileD, DDP. Potential:
+
+- **MQTT publish** — generic IoT output, any MQTT subscriber becomes a target
+- **Art-Net / sACN (E1.31)** — stage/theatrical lighting protocols, DMX controllers
+- **OpenRGB** — control PC peripherals (keyboard, mouse, RAM, fans) as ambient targets
+- **HTTP webhook** — POST color data to arbitrary endpoints
+- **Recording target** — save color streams to file for playback later
+
+## New Color Strip Sources
+
+- **Spotify / media player** — album art color extraction or tempo-synced effects
+- **Weather** — pull conditions from API, map to palettes (blue=rain, orange=sun, white=snow)
+- **Camera / webcam** — border-sampling from camera feed for video calls or room-reactive lighting
+- **Script source** — user-written JS/Python snippets producing color arrays per frame
+- **Notification reactive** — flash/pulse on OS notifications (optional app filter)
+
+## Processing Pipeline Extensions
+
+- **Palette quantization** — force output to match a user-defined palette
+- **Zone grouping** — merge adjacent LEDs into logical groups sharing one averaged color
+- **Color temperature filter** — warm/cool shift separate from hue shift (circadian/mood)
+- **Noise gate** — suppress small color changes below threshold, preventing shimmer on static content
+
+## Multi-Instance & Sync
+
+- **Multi-room sync** — multiple instances with shared clock for synchronized effects
+- **Multi-display unification** — treat 2-3 monitors as single virtual display for seamless ambilight
+- **Leader/follower mode** — one target's output drives others with optional delay (cascade)
+
+## UX & Dashboard
+
+- **PWA / mobile layout** — mobile-first layout + "Add to Home Screen" manifest
+- **Scene presets** — bundled source + filters + brightness as one-click presets ("Movie night", "Gaming")
+- **Live preview on dashboard** — miniature screen with LED colors rendered around its border
+- **Undo/redo for calibration** — reduce frustration in the fiddly calibration editor
+- **Drag-and-drop filter ordering** — reorder postprocessing filter chains visually
+
+## API & Integration
+
+- **WebSocket event bus** — broadcast all state changes over a single WS channel
+- **OBS integration** — detect active scene, switch profiles; or use OBS virtual camera as source
+- **Plugin system** — formalize extension points into documented plugin API with hot-reload
+
+## Creative / Fun
+
+- **Effect sequencer** — timeline-based choreography of effects, colors, and transitions
+- **Music BPM sync** — lock effect speed to detected BPM (beat detection already exists)
+- **Color extraction from image** — upload photo, extract palette, use as gradient/cycle source
+- **Transition effects** — crossfade, wipe, or dissolve between sources/profiles instead of instant cut
+
+---
+
+## Deep Dive: Notification Reactive Source
+
+**Type:** New `ColorStripSource` (`source_type: "notification"`) — normally outputs transparent RGBA, flashes on notification events. Designed to be used as a layer in a **composite source** so it overlays on top of a persistent base (gradient, effect, screen capture, etc.).
+
+### Trigger modes (both active simultaneously)
+
+1. **OS listener (Windows)** — `pywinrt` + `Windows.UI.Notifications.Management.UserNotificationListener`. Runs in background thread, pushes events to source via queue. Windows-only for now; macOS (`pyobjc` + `NSUserNotificationCenter`) and Linux (`dbus` + `org.freedesktop.Notifications`) deferred to future.
+2. **Webhook** — `POST /api/v1/notifications/{source_id}/fire` with optional body `{ "app": "MyApp", "color": "#FF0000" }`. Always available, cross-platform by nature.
+
+### Source config
+
+```yaml
+os_listener: true           # enable Windows notification listener
+app_filter:
+  mode: whitelist|blacklist  # which apps to react to
+  apps: [Discord, Slack, Telegram]
+app_colors:                  # user-configured app → color mapping
+  Discord: "#5865F2"
+  Slack: "#4A154B"
+  Telegram: "#26A5E4"
+default_color: "#FFFFFF"     # fallback when app has no mapping
+effect: flash|pulse|sweep    # visual effect type
+duration_ms: 1500            # effect duration
+```
+
+### Effect rendering
+
+Source outputs RGBA color array per frame:
+- **Idle**: all pixels `(0,0,0,0)` — composite passes through base layer
+- **Flash**: instant full-color, linear fade to transparent over `duration_ms`
+- **Pulse**: sine fade in/out over `duration_ms`
+- **Sweep**: color travels across the strip like a wave
+
+Each notification starts its own mini-timeline from trigger timestamp (not sync clock).
+
+### Overlap handling
+
+New notification while previous effect is active → restart timer with new color. No queuing.
+
+### App color resolution
+
+1. Webhook body `color` field (explicit override) → highest priority
+2. `app_colors` mapping by app name
+3. `default_color` fallback
+
+---
+
+## Top Picks (impact vs effort)
+
+1. **Time-of-day + idle profile conditions** — builds on existing profile/condition architecture
+2. **MQTT output target** — opens the door to an enormous IoT ecosystem
+3. **Scene presets** — purely frontend, bundles existing features into one-click UX

CLAUDE.md

@@ -1,5 +1,31 @@
 # Claude Instructions for WLED Screen Controller
 
+## Code Search
+
+**If `ast-index` is available, use it as the PRIMARY code search tool.** It is significantly faster than grep and returns structured, accurate results. Fall back to grep/Glob only when ast-index is not installed, returns empty results, or when searching regex patterns/string literals/comments.
+
+**IMPORTANT for subagents:** When spawning Agent subagents (Plan, Explore, general-purpose, etc.), always instruct them to use `ast-index` via Bash for code search instead of grep/Glob. Example: include "Use `ast-index search`, `ast-index class`, `ast-index usages` etc. via Bash for code search" in the agent prompt.
+
+```bash
+# Check if available:
+ast-index version
+
+# Rebuild index (first time or after major changes):
+ast-index rebuild
+
+# Common commands:
+ast-index search "Query"                  # Universal search across files, symbols, modules
+ast-index class "ClassName"               # Find class/struct/interface definitions
+ast-index usages "SymbolName"             # Find all places a symbol is used
+ast-index implementations "BaseClass"     # Find all subclasses/implementations
+ast-index symbol "FunctionName"           # Find any symbol (class, function, property)
+ast-index outline "path/to/File.cpp"      # Show all symbols in a file
+ast-index hierarchy "ClassName"           # Show inheritance tree
+ast-index callers "FunctionName"          # Find all call sites
+ast-index changed --base master           # Show symbols changed in current branch
+ast-index update                          # Incremental update after file changes
+```
+
 ## CRITICAL: Git Commit and Push Policy
 
 **🚨 NEVER CREATE COMMITS WITHOUT EXPLICIT USER APPROVAL 🚨**
@@ -66,6 +92,60 @@
 ✅ Claude: [now creates the commit]
 ```
 
+## IMPORTANT: Auto-Restart Server on Code Changes
+
+**Whenever server-side Python code is modified** (any file under `/server/src/` **excluding** `/server/src/wled_controller/static/`), **automatically restart the server** so the changes take effect immediately. Do NOT wait for the user to ask for a restart.
+
+**No restart needed for frontend-only changes** — but you **MUST rebuild the bundle**. The browser loads the esbuild bundle (`static/dist/app.bundle.js`, `static/dist/app.bundle.css`), NOT the source files. After ANY change to frontend files (JS, CSS under `/server/src/wled_controller/static/`), run:
+
+```bash
+cd server && npm run build
+```
+
+Without this step, changes will NOT take effect. No server restart is needed — just rebuild and refresh the browser.
+
+### Restart procedure
+
+Use the PowerShell restart script — it reliably stops only the server process and starts a new detached instance:
+
+```bash
+powershell -ExecutionPolicy Bypass -File "c:\Users\Alexei\Documents\wled-screen-controller\server\restart.ps1"
+```
+
+**Do NOT use** `Stop-Process -Name python` (kills unrelated Python processes like VS Code extensions) or bash background `&` jobs (get killed when the shell session ends).
+
+## IMPORTANT: Server Startup Commands
+
+There are two server modes with separate configs, ports, and data directories:
+
+| Mode | Command | Config | Port | API Key | Data |
+|------|---------|--------|------|---------|------|
+| **Real** | `python -m wled_controller.main` | `config/default_config.yaml` | 8080 | `development-key-change-in-production` | `data/` |
+| **Demo** | `python -m wled_controller.demo` | `config/demo_config.yaml` | 8081 | `demo` | `data/demo/` |
+
+Both can run simultaneously on different ports.
+
+### Restarting after code changes
+
+- **Real server**: Use the PowerShell restart script (it only targets the real server process):
+
+  ```bash
+  powershell -ExecutionPolicy Bypass -File "c:\Users\Alexei\Documents\wled-screen-controller\server\restart.ps1"
+  ```
+
+- **Demo server**: Find and kill the process on port 8081, then restart:
+
+  ```bash
+  # Find PID
+  powershell -Command "netstat -ano | Select-String ':8081.*LISTEN'"
+  # Kill it
+  powershell -Command "Stop-Process -Id <PID> -Force"
+  # Restart
+  cd server && python -m wled_controller.demo
+  ```
+
+**Do NOT use** `Stop-Process -Name python` — it kills unrelated Python processes (VS Code extensions, etc.).
+
 ## Project Structure
 
 This is a monorepo containing:
@@ -77,6 +157,42 @@ This is a monorepo containing:
 For detailed server-specific instructions (restart policy, testing, etc.), see:
 - `server/CLAUDE.md`
 
+## Frontend (HTML, CSS, JS, i18n)
+
+For all frontend conventions (CSS variables, UI patterns, modals, localization, tutorials), see [`contexts/frontend.md`](contexts/frontend.md).
+
+## Task Tracking via TODO.md
+
+Use `TODO.md` in the project root as the primary task tracker. **Do NOT use the TodoWrite tool** — all progress tracking goes through `TODO.md`.
+
+- **When starting a multi-step task**: add sub-steps as `- [ ]` items under the relevant section
+- **When completing a step**: mark it `- [x]` immediately — don't batch updates
+- **When a task is fully done**: mark it `- [x]` and leave it for the user to clean up
+- **When the user requests a new feature/fix**: add it to the appropriate section with a priority tag
+
+## Documentation Lookup
+
+**Use context7 MCP tools for library/framework documentation lookups.** When you need to check API signatures, usage patterns, or current behavior of external libraries (e.g., FastAPI, OpenCV, Pydantic, yt-dlp), use `mcp__plugin_context7_context7__resolve-library-id` to find the library, then `mcp__plugin_context7_context7__query-docs` to fetch up-to-date docs. This avoids relying on potentially outdated training data.
+
+## IMPORTANT: Demo Mode Awareness
+
+**When adding new entity types, engines, device providers, or stores — keep demo mode in sync:**
+
+1. **New entity stores**: Add the store's file path to `StorageConfig` in `config.py` — the `model_post_init()` auto-rewrites `data/` → `data/demo/` paths when demo is active.
+2. **New capture engines**: If a new engine is added, verify demo mode filtering still works (demo engines use `is_demo_mode()` gate in `is_available()`).
+3. **New audio engines**: Same as capture engines — `is_available()` must respect `is_demo_mode()`.
+4. **New device providers**: If discovery is added, gate it with `is_demo_mode()` like `DemoDeviceProvider.discover()`.
+5. **New seed data**: When adding new entity types that should appear in demo mode, update `server/src/wled_controller/core/demo_seed.py` to include sample entities.
+6. **Frontend indicators**: Demo mode state is exposed via `GET /api/v1/version` → `demo_mode: bool`. Frontend stores it as `demoMode` in app state and sets `document.body.dataset.demo = 'true'`.
+7. **Backup/Restore**: If new stores are added to `STORE_MAP` in `system.py`, they automatically work in demo mode since the data directory is already isolated.
+
+**Key files:**
+
+- Config flag: `server/src/wled_controller/config.py` → `Config.demo`, `is_demo_mode()`
+- Demo engines: `core/capture_engines/demo_engine.py`, `core/audio/demo_engine.py`
+- Demo devices: `core/devices/demo_provider.py`
+- Seed data: `core/demo_seed.py`
+
 ## General Guidelines
 
 - Always test changes before marking as complete

README.md

@@ -1,194 +1,236 @@
-# WLED Screen Controller
+# LED Grab
 
-Ambient lighting controller that synchronizes WLED devices with your screen content for an immersive viewing experience.
+Ambient lighting system that captures screen content and drives LED strips in real time. Supports WLED, Adalight, AmbileD, and DDP devices with audio-reactive effects, pattern generation, and automated profile switching.
 
-## Overview
+## What It Does
 
-This project consists of two components:
+The server captures pixels from a screen (or Android device via ADB), extracts border colors, applies post-processing filters, and streams the result to LED strips at up to 60 fps. A built-in web dashboard provides device management, calibration, live LED preview, and real-time metrics — no external UI required.
 
-1. **Python Server** - Captures screen border pixels and sends color data to WLED devices via REST API
+A Home Assistant integration exposes devices as entities for smart home automation.
-2. **Home Assistant Integration** - Controls and monitors the server from Home Assistant OS
 
 ## Features
 
-- 🖥️ **Multi-Monitor Support** - Select which display to capture
+### Screen Capture
-- ⚡ **Configurable FPS** - Adjust update rate (1-60 FPS)
+
-- 🎨 **Smart Calibration** - Map screen edges to LED positions
+- Multi-monitor support with per-target display selection
-- 🔌 **REST API** - Full control via HTTP endpoints
+- 6 capture engine backends — MSS (cross-platform), DXCam, BetterCam, Windows Graphics Capture (Windows), Scrcpy (Android via ADB), Camera/Webcam (OpenCV)
-- 🏠 **Home Assistant Integration** - Native HAOS support with entities
+- Configurable capture regions, FPS, and border width
-- 🐳 **Docker Support** - Easy deployment with Docker Compose
+- Capture templates for reusable configurations
-- 📊 **Real-time Metrics** - Monitor FPS, status, and performance
+
+### LED Device Support
+
+- WLED (HTTP/UDP) with mDNS auto-discovery
+- Adalight (serial) — Arduino-compatible LED controllers
+- AmbileD (serial)
+- DDP (Distributed Display Protocol, UDP)
+- OpenRGB — PC peripherals (keyboard, mouse, RAM, fans, LED strips)
+- Serial port auto-detection and baud rate configuration
+
+### Color Processing
+
+- Post-processing filter pipeline: brightness, gamma, saturation, color correction, auto-crop, frame interpolation, pixelation, flip
+- Reusable post-processing templates
+- Color strip sources: audio-reactive, pattern generator, composite layering, audio-to-color mapping
+- Pattern templates with customizable effects
+
+### Audio Integration
+
+- Multichannel audio capture from any system device (input or loopback)
+- WASAPI engine on Windows, Sounddevice (PortAudio) engine on Linux/macOS
+- Per-channel mono extraction
+- Audio-reactive color strip sources driven by frequency analysis
+
+### Automation
+
+- Profile engine with condition-based switching (time of day, active window, etc.)
+- Dynamic brightness value sources (schedule-based, scene-aware)
+- Key Colors (KC) targets with live WebSocket color streaming
+
+### Dashboard
+
+- Web UI at `http://localhost:8080` — no installation needed on the client side
+- Progressive Web App (PWA) — installable on phones and tablets with offline caching
+- Responsive mobile layout with bottom tab navigation
+- Device management with auto-discovery wizard
+- Visual calibration editor with overlay preview
+- Live LED strip preview via WebSocket
+- Real-time FPS, latency, and uptime charts
+- Localized in English, Russian, and Chinese
+
+### Home Assistant Integration
+
+- HACS-compatible custom component
+- Light, switch, sensor, and number entities per device
+- Real-time metrics via data coordinator
+- WebSocket-based live LED preview in HA
 
 ## Requirements
 
-### Server
+- Python 3.11+ (or Docker)
-- Python 3.11 or higher
+- A supported LED device on the local network or connected via USB
-- Windows, Linux, or macOS
+- Windows, Linux, or macOS — all core features work cross-platform
-- WLED device on the same network
 
-### Home Assistant Integration
+### Platform Notes
-- Home Assistant OS 2023.1 or higher
+
-- Running WLED Screen Controller server
+| Feature | Windows | Linux / macOS |
+| ------- | ------- | ------------- |
+| Screen capture | DXCam, BetterCam, WGC, MSS | MSS |
+| Webcam capture | OpenCV (DirectShow) | OpenCV (V4L2) |
+| Audio capture | WASAPI, Sounddevice | Sounddevice (PulseAudio/PipeWire) |
+| GPU monitoring | NVIDIA (pynvml) | NVIDIA (pynvml) |
+| Android capture | Scrcpy (ADB) | Scrcpy (ADB) |
+| Monitor names | Friendly names (WMI) | Generic ("Display 0") |
+| Profile conditions | Process/window detection | Not yet implemented |
 
 ## Quick Start
 
-### Server Installation
-
-1. **Clone the repository**
-   ```bash
-   git clone https://github.com/yourusername/wled-screen-controller.git
-   cd wled-screen-controller/server
-   ```
-
-2. **Install dependencies**
-   ```bash
-   pip install .
-   ```
-
-3. **Run the server**
-   ```bash
-   uvicorn wled_controller.main:app --host 0.0.0.0 --port 8080
-   ```
-
-4. **Access the API**
-   - API: http://localhost:8080
-   - Interactive docs: http://localhost:8080/docs
-
-### Docker Installation
-
 ```bash
-cd server
+git clone https://github.com/yourusername/wled-screen-controller.git
+cd wled-screen-controller/server
+
+# Option A: Docker (recommended)
 docker-compose up -d
+
+# Option B: Python
+python -m venv venv
+source venv/bin/activate        # Linux/Mac
+# venv\Scripts\activate         # Windows
+pip install .
+export PYTHONPATH=$(pwd)/src    # Linux/Mac
+# set PYTHONPATH=%CD%\src       # Windows
+uvicorn wled_controller.main:app --host 0.0.0.0 --port 8080
+```
+
+Open `http://localhost:8080` to access the dashboard. The default API key for development is `development-key-change-in-production`.
+
+See [INSTALLATION.md](INSTALLATION.md) for the full installation guide, including Docker manual builds and Home Assistant setup.
+
+## Architecture
+
+```text
+wled-screen-controller/
+├── server/                          # Python FastAPI backend
+│   ├── src/wled_controller/
+│   │   ├── main.py                  # Application entry point
+│   │   ├── config.py                # YAML + env var configuration
+│   │   ├── api/
+│   │   │   ├── routes/              # REST + WebSocket endpoints
+│   │   │   └── schemas/             # Pydantic request/response models
+│   │   ├── core/
+│   │   │   ├── capture/             # Screen capture, calibration, pixel processing
+│   │   │   ├── capture_engines/     # MSS, DXCam, BetterCam, WGC, Scrcpy, Camera backends
+│   │   │   ├── devices/             # WLED, Adalight, AmbileD, DDP, OpenRGB clients
+│   │   │   ├── audio/               # Audio capture engines
+│   │   │   ├── filters/             # Post-processing filter pipeline
+│   │   │   ├── processing/          # Stream orchestration and target processors
+│   │   │   └── profiles/            # Condition-based profile automation
+│   │   ├── storage/                 # JSON-based persistence layer
+│   │   ├── static/                  # Web dashboard (vanilla JS, CSS, HTML)
+│   │   │   ├── js/core/             # API client, state, i18n, modals, events
+│   │   │   ├── js/features/         # Feature modules (devices, streams, targets, etc.)
+│   │   │   ├── css/                 # Stylesheets
+│   │   │   └── locales/             # en.json, ru.json, zh.json
+│   │   └── utils/                   # Logging, monitor detection
+│   ├── config/                      # default_config.yaml
+│   ├── tests/                       # pytest suite
+│   ├── Dockerfile
+│   └── docker-compose.yml
+├── custom_components/               # Home Assistant integration (HACS)
+│   └── wled_screen_controller/
+├── docs/
+│   ├── API.md                       # REST API reference
+│   └── CALIBRATION.md               # LED calibration guide
+├── INSTALLATION.md
+└── LICENSE                          # MIT
 ```
 
 ## Configuration
 
-Edit `server/config/default_config.yaml`:
+Edit `server/config/default_config.yaml` or use environment variables with the `LED_GRAB_` prefix:
 
 ```yaml
 server:
   host: "0.0.0.0"
   port: 8080
+  log_level: "INFO"
 
-processing:
+auth:
-  default_fps: 30
+  api_keys:
-  border_width: 10
+    dev: "development-key-change-in-production"
 
-wled:
+storage:
-  timeout: 5
+  devices_file: "data/devices.json"
-  retry_attempts: 3
+  templates_file: "data/capture_templates.json"
+
+logging:
+  format: "json"
+  file: "logs/wled_controller.log"
+  max_size_mb: 100
 ```
 
-## API Usage
+Environment variable override example: `LED_GRAB_SERVER__PORT=9090`.
 
-### Attach a WLED Device
+## API
 
-```bash
+The server exposes a REST API (with Swagger docs at `/docs`) covering:
-curl -X POST http://localhost:8080/api/v1/devices \
-  -H "Content-Type: application/json" \
-  -d '{
-    "name": "Living Room TV",
-    "url": "http://192.168.1.100",
-    "led_count": 150
-  }'
-```
 
-### Start Processing
+- **Devices** — CRUD, discovery, validation, state, metrics
+- **Capture Templates** — Screen capture configurations
+- **Picture Sources** — Screen capture stream definitions
+- **Picture Targets** — LED target management, start/stop processing
+- **Post-Processing Templates** — Filter pipeline configurations
+- **Color Strip Sources** — Audio, pattern, composite, mapped sources
+- **Audio Sources** — Multichannel and mono audio device configuration
+- **Pattern Templates** — Effect pattern definitions
+- **Value Sources** — Dynamic brightness/value providers
+- **Key Colors Targets** — KC targets with WebSocket live color stream
+- **Profiles** — Condition-based automation profiles
 
-```bash
+All endpoints require API key authentication via `X-API-Key` header or `?token=` query parameter.
-curl -X POST http://localhost:8080/api/v1/devices/{device_id}/start
-```
 
-### Get Status
+See [docs/API.md](docs/API.md) for the full reference.
-
-```bash
-curl http://localhost:8080/api/v1/devices/{device_id}/state
-```
-
-See [API Documentation](docs/API.md) for complete API reference.
 
 ## Calibration
 
-The calibration system maps screen border pixels to LED positions. See [Calibration Guide](docs/CALIBRATION.md) for details.
+The calibration system maps screen border pixels to physical LED positions. Configure layout direction, start position, and per-edge segments through the web dashboard or API.
 
-Example calibration:
+See [docs/CALIBRATION.md](docs/CALIBRATION.md) for a step-by-step guide.
-```json
-{
-  "layout": "clockwise",
-  "start_position": "bottom_left",
-  "segments": [
-    {"edge": "bottom", "led_start": 0, "led_count": 40},
-    {"edge": "right", "led_start": 40, "led_count": 30},
-    {"edge": "top", "led_start": 70, "led_count": 40},
-    {"edge": "left", "led_start": 110, "led_count": 40}
-  ]
-}
-```
 
-## Home Assistant Integration
+## Home Assistant
 
-1. Copy `homeassistant/custom_components/wled_screen_controller` to your Home Assistant `custom_components` folder
+Install via HACS (add as a custom repository) or manually copy `custom_components/wled_screen_controller/` into your HA config directory. The integration creates light, switch, sensor, and number entities for each configured device.
-2. Restart Home Assistant
+
-3. Go to Settings → Integrations → Add Integration
+See [INSTALLATION.md](INSTALLATION.md) for detailed setup instructions.
-4. Search for "WLED Screen Controller"
-5. Enter your server URL
 
 ## Development
 
-### Running Tests
-
 ```bash
 cd server
-pytest tests/ -v
+
+# Install with dev dependencies
+pip install -e ".[dev]"
+
+# Run tests
+pytest
+
+# Format and lint
+black src/ tests/
+ruff check src/ tests/
 ```
 
-### Project Structure
+Optional extras:
 
+```bash
+pip install -e ".[perf]"     # High-performance capture engines (Windows)
+pip install -e ".[camera]"   # Webcam capture via OpenCV
 ```
-wled-screen-controller/
-├── server/                   # Python FastAPI server
-│   ├── src/wled_controller/ # Main application code
-│   ├── tests/               # Unit and integration tests
-│   ├── config/              # Configuration files
-│   └── pyproject.toml       # Python dependencies & project config
-├── homeassistant/           # Home Assistant integration
-│   └── custom_components/
-└── docs/                    # Documentation
-```
-
-## Troubleshooting
-
-### Screen capture fails
-- **Windows**: Ensure Python has screen capture permissions
-- **Linux**: Install X11 dependencies: `apt-get install libxcb1 libxcb-randr0`
-- **macOS**: Grant screen recording permission in System Preferences
-
-### WLED not responding
-- Verify WLED device is on the same network
-- Check firewall settings
-- Test connection: `curl http://YOUR_WLED_IP/json/info`
-
-### Low FPS
-- Reduce `border_width` in configuration
-- Lower target FPS
-- Check network latency to WLED device
-- Reduce LED count
 
 ## License
 
-MIT License - see [LICENSE](LICENSE) file
+MIT — see [LICENSE](LICENSE).
-
-## Contributing
-
-Contributions welcome! Please open an issue or pull request.
 
 ## Acknowledgments
 
-- [WLED](https://github.com/Aircoookie/WLED) - Amazing LED control software
+- [WLED](https://github.com/Aircoookie/WLED) — LED control firmware
-- [FastAPI](https://fastapi.tiangolo.com/) - Modern Python web framework
+- [FastAPI](https://fastapi.tiangolo.com/) — Python web framework
-- [mss](https://python-mss.readthedocs.io/) - Fast screen capture library
+- [MSS](https://python-mss.readthedocs.io/) — Cross-platform screen capture
-
-## Support
-
-- GitHub Issues: [Report a bug](https://github.com/yourusername/wled-screen-controller/issues)
-- Discussions: [Ask a question](https://github.com/yourusername/wled-screen-controller/discussions)

build-dist.ps1

@@ -0,0 +1,250 @@
+<#
+.SYNOPSIS
+    Build a portable Windows distribution of LedGrab.
+
+.DESCRIPTION
+    Downloads embedded Python, installs all dependencies, copies app code,
+    builds the frontend bundle, and produces a self-contained ZIP.
+
+.PARAMETER Version
+    Version string (e.g. "0.1.0" or "v0.1.0"). Auto-detected from git tag
+    or __init__.py if omitted.
+
+.PARAMETER PythonVersion
+    Embedded Python version to download. Default: 3.11.9
+
+.PARAMETER SkipFrontend
+    Skip npm ci + npm run build (use if frontend is already built).
+
+.PARAMETER SkipPerf
+    Skip installing optional [perf] extras (dxcam, bettercam, windows-capture).
+
+.EXAMPLE
+    .\build-dist.ps1
+    .\build-dist.ps1 -Version "0.2.0"
+    .\build-dist.ps1 -SkipFrontend -SkipPerf
+#>
+param(
+    [string]$Version = "",
+    [string]$PythonVersion = "3.11.9",
+    [switch]$SkipFrontend,
+    [switch]$SkipPerf
+)
+
+$ErrorActionPreference = 'Stop'
+$ProgressPreference = 'SilentlyContinue'  # faster downloads
+
+$ScriptRoot = $PSScriptRoot
+$BuildDir = Join-Path $ScriptRoot "build"
+$DistName = "LedGrab"
+$DistDir = Join-Path $BuildDir $DistName
+$ServerDir = Join-Path $ScriptRoot "server"
+$PythonDir = Join-Path $DistDir "python"
+$AppDir = Join-Path $DistDir "app"
+
+# ── Version detection ──────────────────────────────────────────
+
+if (-not $Version) {
+    # Try git tag
+    try {
+        $gitTag = git describe --tags --exact-match 2>$null
+        if ($gitTag) { $Version = $gitTag }
+    } catch {}
+}
+if (-not $Version) {
+    # Try env var (CI)
+    if ($env:GITEA_REF_NAME) { $Version = $env:GITEA_REF_NAME }
+    elseif ($env:GITHUB_REF_NAME) { $Version = $env:GITHUB_REF_NAME }
+}
+if (-not $Version) {
+    # Parse from __init__.py
+    $initFile = Join-Path $ServerDir "src\wled_controller\__init__.py"
+    $match = Select-String -Path $initFile -Pattern '__version__\s*=\s*"([^"]+)"'
+    if ($match) { $Version = $match.Matches[0].Groups[1].Value }
+}
+if (-not $Version) { $Version = "0.0.0" }
+
+# Strip leading 'v' for filenames
+$VersionClean = $Version -replace '^v', ''
+$ZipName = "LedGrab-v${VersionClean}-win-x64.zip"
+
+Write-Host "=== Building LedGrab v${VersionClean} ===" -ForegroundColor Cyan
+Write-Host "  Python: $PythonVersion"
+Write-Host "  Output: build\$ZipName"
+Write-Host ""
+
+# ── Clean ──────────────────────────────────────────────────────
+
+if (Test-Path $DistDir) {
+    Write-Host "[1/8] Cleaning previous build..."
+    Remove-Item -Recurse -Force $DistDir
+}
+New-Item -ItemType Directory -Path $DistDir -Force | Out-Null
+
+# ── Download embedded Python ───────────────────────────────────
+
+$PythonZipUrl = "https://www.python.org/ftp/python/${PythonVersion}/python-${PythonVersion}-embed-amd64.zip"
+$PythonZipPath = Join-Path $BuildDir "python-embed.zip"
+
+Write-Host "[2/8] Downloading embedded Python ${PythonVersion}..."
+if (-not (Test-Path $PythonZipPath)) {
+    Invoke-WebRequest -Uri $PythonZipUrl -OutFile $PythonZipPath
+}
+Write-Host "  Extracting to python/..."
+Expand-Archive -Path $PythonZipPath -DestinationPath $PythonDir -Force
+
+# ── Patch ._pth to enable site-packages ────────────────────────
+
+Write-Host "[3/8] Patching Python path configuration..."
+$pthFile = Get-ChildItem -Path $PythonDir -Filter "python*._pth" | Select-Object -First 1
+if (-not $pthFile) { throw "Could not find python*._pth in $PythonDir" }
+
+$pthContent = Get-Content $pthFile.FullName -Raw
+# Uncomment 'import site'
+$pthContent = $pthContent -replace '#\s*import site', 'import site'
+# Add Lib\site-packages if not present
+if ($pthContent -notmatch 'Lib\\site-packages') {
+    $pthContent = $pthContent.TrimEnd() + "`nLib\site-packages`n"
+}
+Set-Content -Path $pthFile.FullName -Value $pthContent -NoNewline
+Write-Host "  Patched $($pthFile.Name)"
+
+# ── Install pip ────────────────────────────────────────────────
+
+Write-Host "[4/8] Installing pip..."
+$GetPipPath = Join-Path $BuildDir "get-pip.py"
+if (-not (Test-Path $GetPipPath)) {
+    Invoke-WebRequest -Uri "https://bootstrap.pypa.io/get-pip.py" -OutFile $GetPipPath
+}
+$python = Join-Path $PythonDir "python.exe"
+$ErrorActionPreference = 'Continue'
+& $python $GetPipPath --no-warn-script-location 2>&1 | Out-Null
+$ErrorActionPreference = 'Stop'
+if ($LASTEXITCODE -ne 0) { throw "Failed to install pip" }
+
+# ── Install dependencies ──────────────────────────────────────
+
+Write-Host "[5/8] Installing dependencies..."
+$extras = "camera,notifications"
+if (-not $SkipPerf) { $extras += ",perf" }
+
+# Install the project (pulls all deps via pyproject.toml), then remove
+# the installed package itself — PYTHONPATH handles app code loading.
+$ErrorActionPreference = 'Continue'
+& $python -m pip install --no-warn-script-location "${ServerDir}[${extras}]" 2>&1 | ForEach-Object {
+    if ($_ -match 'ERROR|Failed') { Write-Host "  $_" -ForegroundColor Red }
+}
+$ErrorActionPreference = 'Stop'
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "  Some optional deps may have failed (continuing)..." -ForegroundColor Yellow
+}
+
+# Remove the installed wled_controller package to avoid duplication
+$sitePackages = Join-Path $PythonDir "Lib\site-packages"
+Get-ChildItem -Path $sitePackages -Filter "wled*" -Directory | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+Get-ChildItem -Path $sitePackages -Filter "wled*.dist-info" -Directory | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+
+# Clean up caches and test files to reduce size
+Write-Host "  Cleaning up caches..."
+Get-ChildItem -Path $sitePackages -Recurse -Directory -Filter "__pycache__" | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+Get-ChildItem -Path $sitePackages -Recurse -Directory -Filter "tests" | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+Get-ChildItem -Path $sitePackages -Recurse -Directory -Filter "test" | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+
+# ── Build frontend ─────────────────────────────────────────────
+
+if (-not $SkipFrontend) {
+    Write-Host "[6/8] Building frontend bundle..."
+    Push-Location $ServerDir
+    try {
+        $ErrorActionPreference = 'Continue'
+        & npm ci --loglevel error 2>&1 | Out-Null
+        & npm run build 2>&1 | ForEach-Object {
+            $line = "$_"
+            if ($line -and $line -notmatch 'RemoteException') { Write-Host "  $line" }
+        }
+        $ErrorActionPreference = 'Stop'
+    } finally {
+        Pop-Location
+    }
+} else {
+    Write-Host "[6/8] Skipping frontend build (--SkipFrontend)"
+}
+
+# ── Copy application files ─────────────────────────────────────
+
+Write-Host "[7/8] Copying application files..."
+New-Item -ItemType Directory -Path $AppDir -Force | Out-Null
+
+# Copy source code (includes static/dist bundle, templates, locales)
+$srcDest = Join-Path $AppDir "src"
+Copy-Item -Path (Join-Path $ServerDir "src") -Destination $srcDest -Recurse
+
+# Copy config
+$configDest = Join-Path $AppDir "config"
+Copy-Item -Path (Join-Path $ServerDir "config") -Destination $configDest -Recurse
+
+# Create empty data/ and logs/ directories
+New-Item -ItemType Directory -Path (Join-Path $DistDir "data") -Force | Out-Null
+New-Item -ItemType Directory -Path (Join-Path $DistDir "logs") -Force | Out-Null
+
+# Clean up source maps and __pycache__ from app code
+Get-ChildItem -Path $srcDest -Recurse -Filter "*.map" | Remove-Item -Force -ErrorAction SilentlyContinue
+Get-ChildItem -Path $srcDest -Recurse -Directory -Filter "__pycache__" | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+
+# ── Create launcher ────────────────────────────────────────────
+
+Write-Host "[8/8] Creating launcher..."
+
+$launcherContent = @'
+@echo off
+title LedGrab v%VERSION%
+cd /d "%~dp0"
+
+:: Set paths
+set PYTHONPATH=%~dp0app\src
+set WLED_CONFIG_PATH=%~dp0app\config\default_config.yaml
+
+:: Create data directory if missing
+if not exist "%~dp0data" mkdir "%~dp0data"
+if not exist "%~dp0logs" mkdir "%~dp0logs"
+
+echo.
+echo  =============================================
+echo   LedGrab v%VERSION%
+echo   Open http://localhost:8080 in your browser
+echo  =============================================
+echo.
+
+:: Start the server (open browser after short delay)
+start "" /b cmd /c "timeout /t 2 /nobreak >nul && start http://localhost:8080"
+"%~dp0python\python.exe" -m uvicorn wled_controller.main:app --host 0.0.0.0 --port 8080
+
+pause
+'@
+
+$launcherContent = $launcherContent -replace '%VERSION%', $VersionClean
+$launcherPath = Join-Path $DistDir "LedGrab.bat"
+Set-Content -Path $launcherPath -Value $launcherContent -Encoding ASCII
+
+# ── Create ZIP ─────────────────────────────────────────────────
+
+$ZipPath = Join-Path $BuildDir $ZipName
+if (Test-Path $ZipPath) { Remove-Item -Force $ZipPath }
+
+Write-Host ""
+Write-Host "Creating $ZipName..." -ForegroundColor Cyan
+
+# Use 7-Zip if available (faster, handles locked files), else fall back to Compress-Archive
+$7z = Get-Command 7z -ErrorAction SilentlyContinue
+if ($7z) {
+    & 7z a -tzip -mx=7 $ZipPath "$DistDir\*" | Select-Object -Last 3
+} else {
+    Compress-Archive -Path "$DistDir\*" -DestinationPath $ZipPath -CompressionLevel Optimal
+}
+
+$zipSize = (Get-Item $ZipPath).Length / 1MB
+Write-Host ""
+Write-Host "=== Build complete ===" -ForegroundColor Green
+Write-Host "  Archive: $ZipPath"
+Write-Host "  Size: $([math]::Round($zipSize, 1)) MB"
+Write-Host ""

contexts/chrome-tools.md

@@ -0,0 +1,66 @@
+# Chrome Browser Tools (MCP)
+
+**Read this file when using Chrome browser tools** (`mcp__claude-in-chrome__*`) for testing or debugging the frontend.
+
+## Tool Loading
+
+All Chrome MCP tools are deferred — they must be loaded with `ToolSearch` before first use:
+
+```
+ToolSearch query="select:mcp__claude-in-chrome__<tool_name>"
+```
+
+Commonly used tools:
+- `tabs_context_mcp` — get available tabs (call first in every session)
+- `navigate` — go to a URL
+- `computer` — screenshots, clicks, keyboard, scrolling, zoom
+- `read_page` — accessibility tree of page elements
+- `find` — find elements by text/selector
+- `javascript_tool` — run JS in the page console
+- `form_input` — fill form fields
+
+## Browser Tricks
+
+### Hard Reload (bypass cache)
+
+After rebuilding the frontend bundle (`npm run build`), do a hard reload to bypass browser cache:
+
+```
+computer action="key" text="ctrl+shift+r"
+```
+
+This is equivalent to Ctrl+Shift+R and forces the browser to re-fetch all resources, ignoring cached versions.
+
+### Zoom into UI regions
+
+Use the `zoom` action to inspect small UI elements (icons, badges, text):
+
+```
+computer action="zoom" region=[x0, y0, x1, y1]
+```
+
+Coordinates define a rectangle from top-left to bottom-right in viewport pixels.
+
+### Scroll to element
+
+Use `scroll_to` with a `ref` from `read_page` to bring an element into view:
+
+```
+computer action="scroll_to" ref="ref_123"
+```
+
+### Console messages
+
+Use `read_console_messages` to check for JS errors after page load or interactions.
+
+### Network requests
+
+Use `read_network_requests` to inspect API calls, check response codes, and debug loading issues.
+
+## Typical Verification Workflow
+
+1. Rebuild bundle: `npm run build` (from `server/` directory)
+2. Hard reload: `ctrl+shift+r`
+3. Take screenshot to verify visual changes
+4. Zoom into specific regions if needed
+5. Check console for errors

contexts/frontend.md

@@ -0,0 +1,269 @@
+# Frontend Rules & Conventions
+
+**Read this file when working on frontend tasks** (HTML, CSS, JS, locales, templates).
+
+## CSS Custom Properties (Variables)
+
+Defined in `server/src/wled_controller/static/css/base.css`.
+
+**IMPORTANT:** There is NO `--accent` variable. Always use `--primary-color` for accent/brand color.
+
+### Global (`:root`)
+| Variable | Value | Usage |
+|---|---|---|
+| `--primary-color` | `#4CAF50` | **Accent/brand color** — borders, highlights, active states |
+| `--primary-hover` | `#5cb860` | Hover state for primary elements |
+| `--primary-contrast` | `#ffffff` | Text on primary background |
+| `--danger-color` | `#f44336` | Destructive actions, errors |
+| `--warning-color` | `#ff9800` | Warnings |
+| `--info-color` | `#2196F3` | Informational highlights |
+
+### Theme-specific (`[data-theme="dark"]` / `[data-theme="light"]`)
+| Variable | Dark | Light | Usage |
+|---|---|---|---|
+| `--bg-color` | `#1a1a1a` | `#f5f5f5` | Page background |
+| `--bg-secondary` | `#242424` | `#eee` | Secondary background |
+| `--card-bg` | `#2d2d2d` | `#ffffff` | Card/panel background |
+| `--text-color` | `#e0e0e0` | `#333333` | Primary text |
+| `--text-secondary` | `#999` | `#666` | Secondary text |
+| `--text-muted` | `#777` | `#999` | Muted/disabled text |
+| `--border-color` | `#404040` | `#e0e0e0` | Borders, dividers |
+| `--primary-text-color` | `#66bb6a` | `#3d8b40` | Primary-colored text |
+| `--success-color` | `#28a745` | `#2e7d32` | Success indicators |
+| `--shadow-color` | `rgba(0,0,0,0.3)` | `rgba(0,0,0,0.12)` | Box shadows |
+
+## UI Conventions for Dialogs
+
+### Hints
+
+Every form field in a modal should have a hint. Use the `.label-row` wrapper with a `?` toggle button:
+
+```html
+<div class="form-group">
+    <div class="label-row">
+        <label for="my-field" data-i18n="my.label">Label:</label>
+        <button type="button" class="hint-toggle" onclick="toggleHint(this)" title="?">?</button>
+    </div>
+    <small class="input-hint" style="display:none" data-i18n="my.label.hint">Hint text</small>
+    <input type="text" id="my-field">
+</div>
+```
+
+Add hint text to both `en.json` and `ru.json` locale files using a `.hint` suffix on the label key.
+
+### Select dropdowns
+
+Do **not** add placeholder options like `-- Select something --`. Populate the `<select>` with real options only and let the first one be selected by default.
+
+### Empty/None option format
+
+When a selector has an optional entity (e.g., sync clock, processing template, brightness source), the empty option must use the format `None (<description>)` where the description explains what happens when nothing is selected. Use i18n keys, never hardcoded `—` or bare `None`.
+
+Examples:
+- `None (no processing template)` — `t('common.none_no_cspt')`
+- `None (no input source)` — `t('common.none_no_input')`
+- `None (use own speed)` — `t('common.none_own_speed')`
+- `None (full brightness)` — `t('color_strip.composite.brightness.none')`
+- `None (device brightness)` — `t('targets.brightness_vs.none')`
+
+For `EntitySelect` with `allowNone: true`, pass the same i18n string as `noneLabel`.
+
+### Enhanced selectors (IconSelect & EntitySelect)
+
+Plain `<select>` dropdowns should be enhanced with visual selectors depending on the data type:
+
+- **Predefined options** (source types, effect types, palettes, waveforms, viz modes) → use `IconSelect` from `js/core/icon-select.js`. This replaces the `<select>` with a visual grid of icon+label+description cells. See `_ensureCSSTypeIconSelect()`, `_ensureEffectTypeIconSelect()`, `_ensureInterpolationIconSelect()` in `color-strips.js` for examples.
+
+- **Entity references** (picture sources, audio sources, devices, templates, clocks) → use `EntitySelect` from `js/core/entity-palette.js`. This replaces the `<select>` with a searchable command-palette-style picker. See `_cssPictureSourceEntitySelect` in `color-strips.js` or `_lineSourceEntitySelect` in `advanced-calibration.js` for examples.
+
+Both widgets hide the native `<select>` but keep it in the DOM with its value in sync. After programmatically changing the `<select>` value, call `.refresh()` (EntitySelect) or `.setValue(val)` (IconSelect) to update the trigger display. Call `.destroy()` when the modal closes.
+
+**IMPORTANT:** For `IconSelect` item icons, use SVG icons from `js/core/icon-paths.js` (via `_icon(P.iconName)`) or styled `<span>` elements (e.g., `<span style="font-weight:bold">A</span>`). **Never use emoji** — they render inconsistently across platforms and themes.
+
+### Modal dirty check (discard unsaved changes)
+
+Every editor modal **must** have a dirty check so closing with unsaved changes shows a "Discard unsaved changes?" confirmation. Use the `Modal` base class pattern from `js/core/modal.js`:
+
+1. **Subclass Modal** with `snapshotValues()` returning an object of all tracked field values:
+
+   ```javascript
+   class MyEditorModal extends Modal {
+       constructor() { super('my-modal-id'); }
+       snapshotValues() {
+           return {
+               name: document.getElementById('my-name').value,
+               // ... all form fields
+           };
+       }
+       onForceClose() {
+           // Optional: cleanup (reset flags, clear state, etc.)
+       }
+   }
+   const myModal = new MyEditorModal();
+   ```
+
+2. **Call `modal.snapshot()`** after the form is fully populated (after `modal.open()`).
+3. **Close/cancel button** calls `await modal.close()` — triggers dirty check + confirmation.
+4. **Save function** calls `modal.forceClose()` after successful save — skips dirty check.
+5. For complex/dynamic state (filter lists, schedule rows, conditions), serialize to JSON string in `snapshotValues()`.
+
+The base class handles: `isDirty()` comparison, confirmation dialog, backdrop click, ESC key, focus trapping, and body scroll lock.
+
+### Card appearance
+
+When creating or modifying entity cards (devices, targets, CSS sources, streams, audio/value sources, templates), **always reference existing cards** of the same or similar type for visual consistency. Cards should have:
+
+- Clone (📋) and Edit (✏️) icon buttons in `.template-card-actions`
+- Delete (✕) button as `.card-remove-btn`
+- Property badges in `.stream-card-props` with emoji icons
+- **Crosslinks**: When a card references another entity (audio source, picture source, capture template, PP template, etc.), make the property badge a clickable link using the `stream-card-link` CSS class and an `onclick` handler calling `navigateToCard(tab, subTab, sectionKey, cardAttr, cardValue)`. Only add the link when the referenced entity is found (to avoid broken navigation). Example: `<span class="stream-card-prop stream-card-link" onclick="event.stopPropagation(); navigateToCard('streams','audio','audio-multi','data-id','${id}')">🎵 Name</span>`
+
+### Modal footer buttons
+
+Use **icon-only** buttons (✓ / ✕) matching the device settings modal pattern, **not** text buttons:
+
+```html
+<div class="modal-footer">
+    <button class="btn btn-icon btn-secondary" onclick="closeMyModal()" title="Cancel" data-i18n-title="settings.button.cancel" data-i18n-aria-label="aria.cancel">&#x2715;</button>
+    <button class="btn btn-icon btn-primary" onclick="saveMyEntity()" title="Save" data-i18n-title="settings.button.save" data-i18n-aria-label="aria.save">&#x2713;</button>
+</div>
+```
+
+### Slider value display
+
+For range sliders, display the current value **inside the label** (not in a separate wrapper). This keeps the value visible next to the property name:
+
+```html
+<label for="my-slider"><span data-i18n="my.label">Speed:</span> <span id="my-slider-display">1.0</span></label>
+...
+<input type="range" id="my-slider" min="0" max="10" step="0.1" value="1.0"
+    oninput="document.getElementById('my-slider-display').textContent = this.value">
+```
+
+Do **not** use a `range-with-value` wrapper div.
+
+### Tutorials
+
+The app has an interactive tutorial system (`static/js/features/tutorials.js`) with a generic engine, spotlight overlay, tooltip positioning, and keyboard navigation. Tutorials exist for:
+- **Getting started** (header-level walkthrough of all tabs and controls)
+- **Per-tab tutorials** (Dashboard, Targets, Sources, Profiles) triggered by `?` buttons
+- **Device card tutorial** and **Calibration tutorial** (context-specific)
+
+When adding **new tabs, sections, or major UI elements**, update the corresponding tutorial step array in `tutorials.js` and add `tour.*` i18n keys to all 3 locale files (`en.json`, `ru.json`, `zh.json`).
+
+## Icons
+
+**Always use SVG icons from the icon system, never text/emoji/Unicode symbols for buttons and UI controls.**
+
+- Icon SVG paths are defined in `static/js/core/icon-paths.js` (Lucide icons, 24×24 viewBox)
+- Icon constants are exported from `static/js/core/icons.js` (e.g. `ICON_START`, `ICON_TRASH`, `ICON_EDIT`)
+- Use `_svg(path)` wrapper from `icons.js` to create new icon constants from paths
+
+When you need a new icon:
+1. Find the Lucide icon at https://lucide.dev
+2. Copy the inner SVG elements (paths, circles, rects) into `icon-paths.js` as a new export
+3. Add a corresponding `ICON_*` constant in `icons.js` using `_svg(P.myIcon)`
+4. Import and use the constant in your feature module
+
+Common icons: `ICON_START` (play), `ICON_STOP` (power), `ICON_EDIT` (pencil), `ICON_CLONE` (copy), `ICON_TRASH` (trash), `ICON_SETTINGS` (gear), `ICON_TEST` (flask), `ICON_OK` (circle-check), `ICON_WARNING` (triangle-alert), `ICON_HELP` (circle-help), `ICON_LIST_CHECKS` (list-checks), `ICON_CIRCLE_OFF` (circle-off).
+
+For icon-only buttons, use `btn btn-icon` CSS classes. The `.icon` class inside buttons auto-sizes to 16×16.
+
+## Localization (i18n)
+
+**Every user-facing string must be localized.** Never use hardcoded English strings in `showToast()`, `error.textContent`, modal messages, or any other UI-visible text. Always use `t('key')` from `../core/i18n.js` and add the corresponding key to **all three** locale files (`en.json`, `ru.json`, `zh.json`).
+
+- In JS modules: `import { t } from '../core/i18n.js';` then `showToast(t('my.key'), 'error')`
+- In inline `<script>` blocks (where `t()` may not be available yet): use `window.t ? t('key') : 'fallback'`
+- In HTML templates: use `data-i18n="key"` for text content, `data-i18n-title="key"` for title attributes, `data-i18n-aria-label="key"` for aria-labels
+- Keys follow dotted namespace convention: `feature.context.description` (e.g. `device.error.brightness`, `calibration.saved`)
+
+### Dynamic content and language changes
+
+When a feature module generates HTML with baked-in `t()` calls (e.g., toolbar button titles, legend text), that content won't update when the user switches language. To handle this, listen for the `languageChanged` event and re-render:
+
+```javascript
+document.addEventListener('languageChanged', () => {
+    if (_initialized) _reRender();
+});
+```
+
+Static HTML using `data-i18n` attributes is handled automatically by the i18n system. Only dynamically generated HTML needs this pattern.
+
+## Bundling & Development Workflow
+
+The frontend uses **esbuild** to bundle all JS modules and CSS files into single files for production.
+
+### Files
+
+- **Entry points:** `static/js/app.js` (JS), `static/css/all.css` (CSS imports all individual sheets)
+- **Output:** `static/dist/app.bundle.js` and `static/dist/app.bundle.css` (minified + source maps)
+- **Config:** `server/esbuild.mjs`
+- **HTML:** `templates/index.html` references the bundles, not individual source files
+
+### Commands (from `server/` directory)
+
+| Command | Description |
+|---|---|
+| `npm run build` | One-shot bundle + minify (~30ms) |
+| `npm run watch` | Watch mode — auto-rebuilds on any JS/CSS file save |
+
+### Development workflow
+
+1. Run `npm run watch` in a terminal (stays running)
+2. Edit source files in `static/js/` or `static/css/` as usual
+3. esbuild rebuilds the bundle automatically (~30ms)
+4. Refresh the browser to see changes
+
+### Dependencies
+
+All JS/CSS dependencies are bundled — **no CDN or external requests** at runtime:
+
+- **Chart.js** — imported in `perf-charts.js`, exposed as `window.Chart` for `targets.js` and `dashboard.js`
+- **ELK.js** — imported in `graph-layout.js` for graph auto-layout
+- **Fonts** — DM Sans (400-700) and Orbitron (700) woff2 files in `static/fonts/`, declared in `css/fonts.css`
+
+When adding a new JS dependency: `npm install <pkg>` in `server/`, then `import` it in the relevant source file. esbuild bundles it automatically.
+
+### Notes
+
+- The `dist/` directory is gitignored — bundles are build artifacts, run `npm run build` after clone
+- Source maps are generated so browser DevTools show original source files
+- The server sets `Cache-Control: no-cache` on static JS/CSS/JSON to prevent stale browser caches during development
+- GZip compression middleware reduces transfer sizes by ~75%
+- **Do not edit files in `static/dist/`** — they are overwritten by the build
+
+## Chrome Browser Tools
+
+See [`contexts/chrome-tools.md`](chrome-tools.md) for Chrome MCP tool usage, browser tricks (hard reload, zoom, console), and verification workflow.
+
+## Duration & Numeric Formatting
+
+### Uptime / duration values
+
+Use `formatUptime(seconds)` from `core/ui.js`. Outputs `{s}s`, `{m}m {s}s`, or `{h}h {m}m` via i18n keys `time.seconds`, `time.minutes_seconds`, `time.hours_minutes`.
+
+### Large numbers
+
+Use `formatCompact(n)` from `core/ui.js`. Outputs `1.2K`, `3.5M` etc. Set `element.title` to the exact value for hover detail.
+
+### Preventing layout shift
+
+Numeric/duration values that update frequently (FPS, uptime, frame counts) **must** use fixed-width styling to prevent layout reflow:
+
+- `font-family: var(--font-mono, monospace)` — equal-width characters
+- `font-variant-numeric: tabular-nums` — equal-width digits in proportional fonts
+- Fixed `width` or `min-width` on the value container
+- `text-align: right` to anchor the growing edge
+
+Reference: `.dashboard-metric-value` in `dashboard.css` uses `font-family: var(--font-mono)`, `font-weight: 600`, `min-width: 48px`.
+
+### FPS sparkline charts
+
+Use `createFpsSparkline(canvasId, actualHistory, currentHistory, fpsTarget)` from `core/chart-utils.js`. Wrap the canvas in `.target-fps-sparkline` (36px height, `position: relative`, `overflow: hidden`). Show the value in `.target-fps-label` with `.metric-value` and `.target-fps-avg`.
+
+## Visual Graph Editor
+
+See [`contexts/graph-editor.md`](graph-editor.md) for full graph editor architecture and conventions.
+
+**IMPORTANT:** When adding or modifying entity types, subtypes, or connection fields, the graph editor files **must** be updated in sync. The graph maintains its own maps of entity colors, labels, icons, connection rules, and cache references. See the "Keeping the graph in sync with entity types" section in `graph-editor.md` for the complete checklist.

contexts/graph-editor.md

@@ -0,0 +1,101 @@
+# Visual Graph Editor
+
+**Read this file when working on the graph editor** (`static/js/features/graph-editor.js` and related modules).
+
+## Architecture
+
+The graph editor renders all entities (devices, templates, sources, clocks, targets, scenes, automations) as SVG nodes connected by edges in a left-to-right layered layout.
+
+### Core modules
+
+| File | Responsibility |
+|---|---|
+| `js/features/graph-editor.js` | Main orchestrator — toolbar, keyboard, search, filter, add-entity menu, port/node drag, minimap |
+| `js/core/graph-layout.js` | ELK.js layout, `buildGraph()`, `computePorts()`, entity color/label maps |
+| `js/core/graph-nodes.js` | SVG node rendering, overlay buttons, per-node color overrides |
+| `js/core/graph-edges.js` | SVG edge rendering (bezier curves, arrowheads, flow dots) |
+| `js/core/graph-canvas.js` | Pan/zoom controller with `zoomToPoint()` rAF animation |
+| `js/core/graph-connections.js` | CONNECTION_MAP — which fields link entity types, drag-connect/detach logic |
+| `css/graph-editor.css` | All graph-specific styles |
+
+### Data flow
+
+1. `loadGraphEditor()` → `_fetchAllEntities()` fetches all caches in parallel
+2. `computeLayout(entities)` builds ELK graph, runs layout → returns `{nodes: Map, edges: Array, bounds}`
+3. `computePorts(nodeMap, edges)` assigns port positions and annotates edges with `fromPortY`/`toPortY`
+4. Manual position overrides (`_manualPositions`) applied after layout
+5. `renderEdges()` + `renderNodes()` paint SVG elements
+6. `GraphCanvas` handles pan/zoom via CSS `transform: scale() translate()`
+
+### Edge rendering
+
+Edges always use `_defaultBezier()` (port-aware cubic bezier) — ELK edge routing is ignored because it lacks port awareness, causing misaligned bend points. ELK is only used for node positioning.
+
+### Port system
+
+Nodes have input ports (left) and output ports (right), colored by edge type. Port types are ordered vertically: `template > picture > colorstrip > value > audio > clock > scene > device > default`.
+
+## Keeping the graph in sync with entity types
+
+**CRITICAL:** When adding or modifying entity types in the system, these graph files MUST be updated:
+
+### Adding a new entity type
+
+1. **`graph-layout.js`** — `ENTITY_COLORS`, `ENTITY_LABELS`, `buildGraph()` (add node loop + edge loops)
+2. **`graph-layout.js`** — `edgeType()` function if the new type needs a distinct edge color
+3. **`graph-nodes.js`** — `KIND_ICONS` (default icon), `SUBTYPE_ICONS` (subtype-specific icons)
+4. **`graph-nodes.js`** — `START_STOP_KINDS` or `TEST_KINDS` sets if the entity supports start/stop or test
+5. **`graph-connections.js`** — `CONNECTION_MAP` for drag-connect edge creation
+6. **`graph-editor.js`** — `ADD_ENTITY_MAP` (add-entity menu entry with window function)
+7. **`graph-editor.js`** — `ALL_CACHES` array (for new-entity-focus watcher)
+8. **`graph-editor.js`** — `_fetchAllEntities()` (add cache fetch + pass to `computeLayout`)
+9. **`core/state.js`** — Add/export the new DataCache
+10. **`app.js`** — Import and window-export the add/edit/clone functions
+
+### Adding a new field/connection to an existing entity
+
+1. **`graph-layout.js`** — `buildGraph()` edges section: add `addEdge()` call
+2. **`graph-connections.js`** — `CONNECTION_MAP`: add the field entry
+3. **`graph-edges.js`** — `EDGE_COLORS` if a new edge type is needed
+
+### Adding a new entity subtype
+
+1. **`graph-nodes.js`** — `SUBTYPE_ICONS[kind]` — add icon for the new subtype
+2. **`graph-layout.js`** — `buildGraph()` — ensure `subtype` is extracted from the entity data
+
+## Features & keyboard shortcuts
+
+| Key | Action |
+|---|---|
+| `/` | Open search |
+| `F` | Toggle filter |
+| `F11` | Toggle fullscreen |
+| `+` | Add entity menu |
+| `Escape` | Close filter → close search → deselect all |
+| `Delete` | Delete selected edge or node |
+| `Arrows / WASD` | Spatial navigation between nodes |
+| `Ctrl+A` | Select all nodes |
+
+## Node color overrides
+
+Per-node colors stored in `localStorage` key `graph_node_colors`. The `getNodeColor(nodeId, kind)` function returns the override or falls back to `ENTITY_COLORS[kind]`. The color bar on the left side of each node is clickable to open a native color picker.
+
+## Filter system
+
+The filter bar (toggled with F or toolbar button) filters nodes by name/kind/subtype. Non-matching nodes get the `.graph-filtered-out` CSS class (low opacity, no pointer events). Edges where either endpoint is filtered also dim. Minimap nodes for filtered-out entities become nearly invisible (opacity 0.07).
+
+## Minimap
+
+Rendered as a small SVG with colored rects for each node and a viewport rect. Supports drag-to-pan, resize handles, and position persistence in localStorage.
+
+## Node hover FPS tooltip
+
+Running `output_target` nodes show a floating HTML tooltip on hover (300ms delay). The tooltip is an absolutely-positioned `<div class="graph-node-tooltip">` inside `.graph-container` (not SVG — needed for Chart.js canvas). It displays errors, uptime, and a FPS sparkline (reusing `createFpsSparkline` from `core/chart-utils.js`). The sparkline is seeded from `/api/v1/system/metrics-history` for instant context.
+
+**Hover events** use `pointerover`/`pointerout` with `relatedTarget` check to prevent flicker when the cursor moves between child SVG elements within the same `<g>` node.
+
+**Node titles** display the full entity name (no truncation). Native SVG `<title>` tooltips are omitted on nodes to avoid conflict with the custom tooltip.
+
+## New entity focus
+
+When a user adds an entity via the graph's + menu, a watcher subscribes to all caches, detects the new ID, reloads the graph, and uses `zoomToPoint()` to smoothly fly to the new node with zoom + highlight animation.

custom_components/wled_screen_controller/README.md

@@ -1,214 +0,0 @@
-# WLED Screen Controller - Home Assistant Integration
-
-Native Home Assistant integration for WLED Screen Controller with full HACS support.
-
-## Overview
-
-This integration connects Home Assistant to the WLED Screen Controller server, providing:
-
-- 🎛️ **Switch Entities** - Turn processing on/off per device
-- 📊 **Sensor Entities** - Monitor FPS, status, and frame count
-- 🖥️ **Select Entities** - Choose which display to capture
-- 🔄 **Auto-Discovery** - Devices appear automatically
-- 📦 **HACS Compatible** - Install directly from HACS
-- ⚙️ **Config Flow** - Easy setup through UI
-
-## Installation
-
-### Method 1: HACS (Recommended)
-
-1. **Install HACS** if you haven't already:
-   - Visit https://hacs.xyz/docs/setup/download
-
-2. **Add Custom Repository:**
-   - Open HACS in Home Assistant
-   - Click the menu (⋮) → Custom repositories
-   - Add URL: `https://github.com/yourusername/wled-screen-controller`
-   - Category: **Integration**
-   - Click **Add**
-
-3. **Install Integration:**
-   - In HACS, search for "WLED Screen Controller"
-   - Click **Download**
-   - Restart Home Assistant
-
-4. **Configure:**
-   - Go to Settings → Devices & Services
-   - Click **+ Add Integration**
-   - Search for "WLED Screen Controller"
-   - Enter your server URL (e.g., `http://192.168.1.100:8080`)
-   - Click **Submit**
-
-### Method 2: Manual Installation
-
-1. **Download:**
-   ```bash
-   cd /config  # Your Home Assistant config directory
-   mkdir -p custom_components
-   ```
-
-2. **Copy Files:**
-   Copy the entire `custom_components/wled_screen_controller` folder to your Home Assistant `custom_components/` directory.
-
-3. **Restart Home Assistant**
-
-4. **Configure:**
-   - Settings → Devices & Services → Add Integration
-   - Search for "WLED Screen Controller"
-
-## Configuration
-
-### Initial Setup
-
-When adding the integration, you'll be prompted for:
-
-- **Name**: Friendly name for the integration (default: "WLED Screen Controller")
-- **Server URL**: URL of your WLED Screen Controller server (e.g., `http://192.168.1.100:8080`)
-
-The integration will automatically:
-- Verify connection to the server
-- Discover all configured WLED devices
-- Create entities for each device
-
-### Entities Created
-
-For each WLED device, the following entities are created:
-
-#### Switch Entities
-
-**`switch.{device_name}_processing`**
-- Controls processing on/off for the device
-- Attributes:
-  - `device_id`: Internal device ID
-  - `fps_target`: Target FPS
-  - `fps_actual`: Current FPS
-  - `display_index`: Active display
-  - `frames_processed`: Total frames
-  - `errors_count`: Error count
-  - `uptime_seconds`: Processing uptime
-
-#### Sensor Entities
-
-**`sensor.{device_name}_fps`**
-- Current FPS value
-- Unit: FPS
-- Attributes:
-  - `target_fps`: Target FPS setting
-
-**`sensor.{device_name}_status`**
-- Processing status
-- States: `processing`, `idle`, `unavailable`, `unknown`
-
-**`sensor.{device_name}_frames_processed`**
-- Total frames processed counter
-- Continuously increasing while processing
-
-#### Select Entities
-
-**`select.{device_name}_display`**
-- Select which display to capture
-- Options: `Display 0`, `Display 1`, etc.
-- Changes take effect immediately
-
-## Usage Examples
-
-### Basic Automation
-
-Turn on processing when TV turns on:
-
-```yaml
-automation:
-  - alias: "Auto Start WLED with TV"
-    trigger:
-      - platform: state
-        entity_id: media_player.living_room_tv
-        to: "on"
-    action:
-      - service: switch.turn_on
-        target:
-          entity_id: switch.living_room_wled_processing
-
-  - alias: "Auto Stop WLED with TV"
-    trigger:
-      - platform: state
-        entity_id: media_player.living_room_tv
-        to: "off"
-    action:
-      - service: switch.turn_off
-        target:
-          entity_id: switch.living_room_wled_processing
-```
-
-### Lovelace UI Examples
-
-#### Simple Card
-
-```yaml
-type: entities
-title: WLED Screen Controller
-entities:
-  - entity: switch.living_room_wled_processing
-  - entity: sensor.living_room_wled_fps
-  - entity: sensor.living_room_wled_status
-  - entity: select.living_room_wled_display
-```
-
-#### Advanced Card
-
-```yaml
-type: vertical-stack
-cards:
-  - type: entity
-    entity: switch.living_room_wled_processing
-    name: Ambient Lighting
-    icon: mdi:television-ambient-light
-
-  - type: conditional
-    conditions:
-      - entity: switch.living_room_wled_processing
-        state: "on"
-    card:
-      type: entities
-      entities:
-        - entity: sensor.living_room_wled_fps
-          name: Current FPS
-        - entity: sensor.living_room_wled_frames_processed
-          name: Frames Processed
-        - entity: select.living_room_wled_display
-          name: Display Selection
-```
-
-## Troubleshooting
-
-### Integration Not Appearing
-
-1. Check HACS installation
-2. Clear browser cache
-3. Restart Home Assistant
-4. Check logs: Settings → System → Logs
-
-### Connection Errors
-
-1. Verify server is running:
-   ```bash
-   curl http://YOUR_SERVER_IP:8080/health
-   ```
-
-2. Check firewall settings
-3. Ensure Home Assistant can reach server
-4. Try http:// not https://
-
-### Entities Not Updating
-
-1. Check coordinator logs
-2. Verify server has devices
-3. Restart integration
-
-## Support
-
-- 📖 [Full Documentation](../../INSTALLATION.md)
-- 🐛 [Report Issues](https://github.com/yourusername/wled-screen-controller/issues)
-
-## License
-
-MIT License - see [../../LICENSE](../../LICENSE)

custom_components/wled_screen_controller/__init__.py

@@ -1,84 +1,191 @@
-"""The WLED Screen Controller integration."""
+"""The LED Screen Controller integration."""
 from __future__ import annotations
 
 import logging
 from datetime import timedelta
-from urllib.parse import urlparse
+
+import voluptuous as vol
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import Platform, CONF_NAME
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import device_registry as dr
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-from .const import DOMAIN, CONF_SERVER_URL, DEFAULT_SCAN_INTERVAL
+from .const import (
+    DOMAIN,
+    CONF_SERVER_NAME,
+    CONF_SERVER_URL,
+    CONF_API_KEY,
+    DEFAULT_SCAN_INTERVAL,
+    TARGET_TYPE_KEY_COLORS,
+    DATA_COORDINATOR,
+    DATA_WS_MANAGER,
+    DATA_EVENT_LISTENER,
+)
 from .coordinator import WLEDScreenControllerCoordinator
+from .event_listener import EventStreamListener
+from .ws_manager import KeyColorsWebSocketManager
 
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORMS: list[Platform] = [
+    Platform.BUTTON,
+    Platform.LIGHT,
     Platform.SWITCH,
     Platform.SENSOR,
+    Platform.NUMBER,
     Platform.SELECT,
 ]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
-    """Set up WLED Screen Controller from a config entry."""
+    """Set up LED Screen Controller from a config entry."""
+    server_name = entry.data.get(CONF_SERVER_NAME, "LED Screen Controller")
     server_url = entry.data[CONF_SERVER_URL]
-    server_name = entry.data.get(CONF_NAME, "WLED Screen Controller")
+    api_key = entry.data[CONF_API_KEY]
 
     session = async_get_clientsession(hass)
     coordinator = WLEDScreenControllerCoordinator(
         hass,
         session,
         server_url,
+        api_key,
         update_interval=timedelta(seconds=DEFAULT_SCAN_INTERVAL),
     )
 
-    # Fetch initial data
     await coordinator.async_config_entry_first_refresh()
 
-    # Create hub device (the server PC)
+    ws_manager = KeyColorsWebSocketManager(hass, server_url, api_key)
+
+    event_listener = EventStreamListener(hass, server_url, api_key, coordinator)
+    await event_listener.start()
+
+    # Create device entries for each target and remove stale ones
     device_registry = dr.async_get(hass)
-
+    current_identifiers: set[tuple[str, str]] = set()
-    # Parse URL for hub identifier
+    if coordinator.data and "targets" in coordinator.data:
-    parsed_url = urlparse(server_url)
+        for target_id, target_data in coordinator.data["targets"].items():
-    hub_identifier = f"{parsed_url.hostname}:{parsed_url.port or (443 if parsed_url.scheme == 'https' else 80)}"
+            info = target_data["info"]
-
+            target_type = info.get("target_type", "led")
-    hub_device = device_registry.async_get_or_create(
+            model = (
-        config_entry_id=entry.entry_id,
+                "Key Colors Target"
-        identifiers={(DOMAIN, hub_identifier)},
+                if target_type == TARGET_TYPE_KEY_COLORS
-        name=server_name,
+                else "LED Target"
-        manufacturer="WLED Screen Controller",
-        model="Server",
-        sw_version=coordinator.server_version,
-        configuration_url=server_url,
             )
-
-    # Create device entries for each WLED device
-    if coordinator.data and "devices" in coordinator.data:
-        for device_id, device_data in coordinator.data["devices"].items():
-            device_info = device_data["info"]
             device_registry.async_get_or_create(
                 config_entry_id=entry.entry_id,
-                identifiers={(DOMAIN, device_id)},
+                identifiers={(DOMAIN, target_id)},
-                name=device_info["name"],
+                name=info.get("name", target_id),
-                manufacturer="WLED",
+                manufacturer=server_name,
-                model="Screen Ambient Lighting",
+                model=model,
-                sw_version=f"{device_info.get('led_count', 0)} LEDs",
+                configuration_url=server_url,
-                via_device=(DOMAIN, hub_identifier),  # Link to hub
-                configuration_url=device_info.get("url"),
             )
+            current_identifiers.add((DOMAIN, target_id))
 
-    # Store coordinator and hub info
+    # Create a single "Scenes" device for scene preset buttons
+    scenes_identifier = (DOMAIN, f"{entry.entry_id}_scenes")
+    scene_presets = coordinator.data.get("scene_presets", []) if coordinator.data else []
+    if scene_presets:
+        device_registry.async_get_or_create(
+            config_entry_id=entry.entry_id,
+            identifiers={scenes_identifier},
+            name="Scenes",
+            manufacturer=server_name,
+            model="Scene Presets",
+            configuration_url=server_url,
+        )
+        current_identifiers.add(scenes_identifier)
+
+    # Remove devices for targets that no longer exist
+    for device_entry in dr.async_entries_for_config_entry(
+        device_registry, entry.entry_id
+    ):
+        if not device_entry.identifiers & current_identifiers:
+            _LOGGER.info("Removing stale device: %s", device_entry.name)
+            device_registry.async_remove_device(device_entry.id)
+
+    # Store data
     hass.data.setdefault(DOMAIN, {})
     hass.data[DOMAIN][entry.entry_id] = {
-        "coordinator": coordinator,
+        DATA_COORDINATOR: coordinator,
-        "hub_device_id": hub_device.id,
+        DATA_WS_MANAGER: ws_manager,
+        DATA_EVENT_LISTENER: event_listener,
     }
 
-    # Setup platforms
+    # Track target and scene IDs to detect changes
+    known_target_ids = set(
+        coordinator.data.get("targets", {}).keys() if coordinator.data else []
+    )
+    known_scene_ids = set(
+        p["id"] for p in (coordinator.data.get("scene_presets", []) if coordinator.data else [])
+    )
+
+    def _on_coordinator_update() -> None:
+        """Manage WS connections and detect target list changes."""
+        nonlocal known_target_ids, known_scene_ids
+
+        if not coordinator.data:
+            return
+
+        targets = coordinator.data.get("targets", {})
+
+        # Start/stop WS connections for KC targets based on processing state
+        for target_id, target_data in targets.items():
+            info = target_data.get("info", {})
+            state = target_data.get("state") or {}
+            if info.get("target_type") == TARGET_TYPE_KEY_COLORS:
+                if state.get("processing"):
+                    if target_id not in ws_manager._connections:
+                        hass.async_create_task(ws_manager.start_listening(target_id))
+                else:
+                    if target_id in ws_manager._connections:
+                        hass.async_create_task(ws_manager.stop_listening(target_id))
+
+        # Reload if target or scene list changed
+        current_ids = set(targets.keys())
+        current_scene_ids = set(
+            p["id"] for p in coordinator.data.get("scene_presets", [])
+        )
+        if current_ids != known_target_ids or current_scene_ids != known_scene_ids:
+            known_target_ids = current_ids
+            known_scene_ids = current_scene_ids
+            _LOGGER.info("Target or scene list changed, reloading integration")
+            hass.async_create_task(
+                hass.config_entries.async_reload(entry.entry_id)
+            )
+
+    coordinator.async_add_listener(_on_coordinator_update)
+
+    # Register set_leds service (once across all entries)
+    async def handle_set_leds(call) -> None:
+        """Handle the set_leds service call."""
+        source_id = call.data["source_id"]
+        segments = call.data["segments"]
+        # Route to the coordinator that owns this source
+        for entry_data in hass.data[DOMAIN].values():
+            coord = entry_data.get(DATA_COORDINATOR)
+            if not coord or not coord.data:
+                continue
+            source_ids = {
+                s["id"] for s in coord.data.get("css_sources", [])
+            }
+            if source_id in source_ids:
+                await coord.push_segments(source_id, segments)
+                return
+        _LOGGER.error("No server found with source_id %s", source_id)
+
+    if not hass.services.has_service(DOMAIN, "set_leds"):
+        hass.services.async_register(
+            DOMAIN,
+            "set_leds",
+            handle_set_leds,
+            schema=vol.Schema({
+                vol.Required("source_id"): str,
+                vol.Required("segments"): list,
+            }),
+        )
+
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
     return True
@@ -86,15 +193,16 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
 async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Unload a config entry."""
+    entry_data = hass.data[DOMAIN][entry.entry_id]
+    await entry_data[DATA_WS_MANAGER].shutdown()
+    await entry_data[DATA_EVENT_LISTENER].shutdown()
+
     unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
 
     if unload_ok:
         hass.data[DOMAIN].pop(entry.entry_id)
+        # Unregister service if no entries remain
+        if not hass.data[DOMAIN]:
+            hass.services.async_remove(DOMAIN, "set_leds")
 
     return unload_ok
-
-
-async def async_reload_entry(hass: HomeAssistant, entry: ConfigEntry) -> None:
-    """Reload config entry."""
-    await async_unload_entry(hass, entry)
-    await async_setup_entry(hass, entry)

custom_components/wled_screen_controller/button.py

@@ -0,0 +1,74 @@
+"""Button platform for LED Screen Controller — scene preset activation."""
+from __future__ import annotations
+
+import logging
+from typing import Any
+
+from homeassistant.components.button import ButtonEntity
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DOMAIN, DATA_COORDINATOR
+from .coordinator import WLEDScreenControllerCoordinator
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up scene preset buttons."""
+    data = hass.data[DOMAIN][entry.entry_id]
+    coordinator: WLEDScreenControllerCoordinator = data[DATA_COORDINATOR]
+
+    entities = []
+    if coordinator.data:
+        for preset in coordinator.data.get("scene_presets", []):
+            entities.append(
+                SceneActivateButton(coordinator, preset, entry.entry_id)
+            )
+
+    async_add_entities(entities)
+
+
+class SceneActivateButton(CoordinatorEntity, ButtonEntity):
+    """Button that activates a scene preset."""
+
+    _attr_has_entity_name = True
+
+    def __init__(
+        self,
+        coordinator: WLEDScreenControllerCoordinator,
+        preset: dict[str, Any],
+        entry_id: str,
+    ) -> None:
+        """Initialize the button."""
+        super().__init__(coordinator)
+        self._preset_id = preset["id"]
+        self._entry_id = entry_id
+        self._attr_unique_id = f"{entry_id}_scene_{preset['id']}"
+        self._attr_translation_key = "activate_scene"
+        self._attr_translation_placeholders = {"scene_name": preset["name"]}
+        self._attr_icon = "mdi:palette"
+
+    @property
+    def device_info(self) -> dict[str, Any]:
+        """Return device information — all scene buttons belong to the Scenes device."""
+        return {"identifiers": {(DOMAIN, f"{self._entry_id}_scenes")}}
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        if not self.coordinator.data:
+            return False
+        return self._preset_id in {
+            p["id"] for p in self.coordinator.data.get("scene_presets", [])
+        }
+
+    async def async_press(self) -> None:
+        """Activate the scene preset."""
+        await self.coordinator.activate_scene(self._preset_id)

custom_components/wled_screen_controller/config_flow.py

@@ -1,4 +1,4 @@
-"""Config flow for WLED Screen Controller integration."""
+"""Config flow for LED Screen Controller integration."""
 from __future__ import annotations
 
 import logging
@@ -9,19 +9,19 @@ import aiohttp
 import voluptuous as vol
 
 from homeassistant import config_entries
-from homeassistant.const import CONF_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import FlowResult
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-from .const import DOMAIN, CONF_SERVER_URL, DEFAULT_TIMEOUT
+from .const import DOMAIN, CONF_SERVER_NAME, CONF_SERVER_URL, CONF_API_KEY, DEFAULT_TIMEOUT
 
 _LOGGER = logging.getLogger(__name__)
 
 STEP_USER_DATA_SCHEMA = vol.Schema(
     {
-        vol.Required(CONF_NAME, default="WLED Screen Controller"): str,
+        vol.Optional(CONF_SERVER_NAME, default="LED Screen Controller"): str,
         vol.Required(CONF_SERVER_URL, default="http://localhost:8080"): str,
+        vol.Required(CONF_API_KEY): str,
     }
 )
 
@@ -30,48 +30,56 @@ def normalize_url(url: str) -> str:
     """Normalize URL to ensure port is an integer."""
     parsed = urlparse(url)
 
-    # If port is specified, ensure it's an integer
     if parsed.port is not None:
-        # Reconstruct URL with integer port
         netloc = parsed.hostname or "localhost"
-        port = int(parsed.port)  # Cast to int to avoid float
+        port = int(parsed.port)
         if port != (443 if parsed.scheme == "https" else 80):
             netloc = f"{netloc}:{port}"
-
         parsed = parsed._replace(netloc=netloc)
 
     return urlunparse(parsed)
 
 
-async def validate_server_connection(
+async def validate_server(
-    hass: HomeAssistant, server_url: str
+    hass: HomeAssistant, server_url: str, api_key: str
 ) -> dict[str, Any]:
-    """Validate the server URL by checking the health endpoint."""
+    """Validate server connectivity and API key."""
     session = async_get_clientsession(hass)
+    timeout = aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT)
 
+    # Step 1: Check connectivity via health endpoint (no auth needed)
+    try:
+        async with session.get(f"{server_url}/health", timeout=timeout) as resp:
+            if resp.status != 200:
+                raise ConnectionError(f"Server returned status {resp.status}")
+            data = await resp.json()
+            version = data.get("version", "unknown")
+    except aiohttp.ClientError as err:
+        raise ConnectionError(f"Cannot connect to server: {err}") from err
+
+    # Step 2: Validate API key via authenticated endpoint
+    headers = {"Authorization": f"Bearer {api_key}"}
     try:
         async with session.get(
-            f"{server_url}/health",
+            f"{server_url}/api/v1/output-targets",
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+            headers=headers,
-        ) as response:
+            timeout=timeout,
-            if response.status == 200:
+        ) as resp:
-                data = await response.json()
+            if resp.status == 401:
-                return {
+                raise PermissionError("Invalid API key")
-                    "version": data.get("version", "unknown"),
+            resp.raise_for_status()
-                    "status": data.get("status", "unknown"),
+    except PermissionError:
-                }
+        raise
-            raise ConnectionError(f"Server returned status {response.status}")
-
     except aiohttp.ClientError as err:
-        raise ConnectionError(f"Cannot connect to server: {err}")
+        raise ConnectionError(f"API request failed: {err}") from err
-    except Exception as err:
+
-        raise ConnectionError(f"Unexpected error: {err}")
+    return {"version": version}
 
 
 class WLEDScreenControllerConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
-    """Handle a config flow for WLED Screen Controller."""
+    """Handle a config flow for LED Screen Controller."""
 
-    VERSION = 1
+    VERSION = 2
 
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
@@ -80,27 +88,31 @@ class WLEDScreenControllerConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         errors: dict[str, str] = {}
 
         if user_input is not None:
+            server_name = user_input.get(CONF_SERVER_NAME, "LED Screen Controller")
             server_url = normalize_url(user_input[CONF_SERVER_URL].rstrip("/"))
+            api_key = user_input[CONF_API_KEY]
 
             try:
-                info = await validate_server_connection(self.hass, server_url)
+                await validate_server(self.hass, server_url, api_key)
 
-                # Set unique ID based on server URL
                 await self.async_set_unique_id(server_url)
                 self._abort_if_unique_id_configured()
 
                 return self.async_create_entry(
-                    title=user_input[CONF_NAME],
+                    title=server_name,
                     data={
+                        CONF_SERVER_NAME: server_name,
                         CONF_SERVER_URL: server_url,
-                        "version": info["version"],
+                        CONF_API_KEY: api_key,
                     },
                 )
 
             except ConnectionError as err:
                 _LOGGER.error("Connection error: %s", err)
                 errors["base"] = "cannot_connect"
-            except Exception as err:  # pylint: disable=broad-except
+            except PermissionError:
+                errors["base"] = "invalid_api_key"
+            except Exception as err:
                 _LOGGER.exception("Unexpected exception: %s", err)
                 errors["base"] = "unknown"
 

custom_components/wled_screen_controller/const.py

@@ -1,23 +1,23 @@
-"""Constants for the WLED Screen Controller integration."""
+"""Constants for the LED Screen Controller integration."""
 
 DOMAIN = "wled_screen_controller"
 
 # Configuration
+CONF_SERVER_NAME = "server_name"
 CONF_SERVER_URL = "server_url"
+CONF_API_KEY = "api_key"
 
 # Default values
-DEFAULT_SCAN_INTERVAL = 10  # seconds
+DEFAULT_SCAN_INTERVAL = 3  # seconds
 DEFAULT_TIMEOUT = 10  # seconds
+WS_RECONNECT_DELAY = 5  # seconds
+WS_MAX_RECONNECT_DELAY = 60  # seconds
 
-# Attributes
+# Target types
-ATTR_DEVICE_ID = "device_id"
+TARGET_TYPE_LED = "led"
-ATTR_FPS_ACTUAL = "fps_actual"
+TARGET_TYPE_KEY_COLORS = "key_colors"
-ATTR_FPS_TARGET = "fps_target"
-ATTR_DISPLAY_INDEX = "display_index"
-ATTR_FRAMES_PROCESSED = "frames_processed"
-ATTR_ERRORS_COUNT = "errors_count"
-ATTR_UPTIME = "uptime_seconds"
 
-# Services
+# Data keys stored in hass.data[DOMAIN][entry_id]
-SERVICE_START_PROCESSING = "start_processing"
+DATA_COORDINATOR = "coordinator"
-SERVICE_STOP_PROCESSING = "stop_processing"
+DATA_WS_MANAGER = "ws_manager"
+DATA_EVENT_LISTENER = "event_listener"

custom_components/wled_screen_controller/coordinator.py

@@ -1,4 +1,4 @@
-"""Data update coordinator for WLED Screen Controller."""
+"""Data update coordinator for LED Screen Controller."""
 from __future__ import annotations
 
 import asyncio
@@ -11,25 +11,33 @@ import aiohttp
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
-from .const import DOMAIN, DEFAULT_TIMEOUT
+from .const import (
+    DOMAIN,
+    DEFAULT_TIMEOUT,
+    TARGET_TYPE_KEY_COLORS,
+)
 
 _LOGGER = logging.getLogger(__name__)
 
 
 class WLEDScreenControllerCoordinator(DataUpdateCoordinator):
-    """Class to manage fetching WLED Screen Controller data."""
+    """Class to manage fetching LED Screen Controller data."""
 
     def __init__(
         self,
         hass: HomeAssistant,
         session: aiohttp.ClientSession,
         server_url: str,
+        api_key: str,
         update_interval: timedelta,
     ) -> None:
         """Initialize the coordinator."""
         self.server_url = server_url
         self.session = session
+        self.api_key = api_key
         self.server_version = "unknown"
+        self._auth_headers = {"Authorization": f"Bearer {api_key}"}
+        self._timeout = aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT)
 
         super().__init__(
             hass,
@@ -41,44 +49,81 @@ class WLEDScreenControllerCoordinator(DataUpdateCoordinator):
     async def _async_update_data(self) -> dict[str, Any]:
         """Fetch data from API."""
         try:
-            async with asyncio.timeout(DEFAULT_TIMEOUT):
+            async with asyncio.timeout(DEFAULT_TIMEOUT * 3):
-                # Fetch server version on first update
                 if self.server_version == "unknown":
                     await self._fetch_server_version()
 
-                # Fetch devices list
+                targets_list = await self._fetch_targets()
-                devices = await self._fetch_devices()
 
-                # Fetch state for each device
+                # Fetch state and metrics for all targets in parallel
-                devices_data = {}
+                targets_data: dict[str, dict[str, Any]] = {}
-                for device in devices:
+
-                    device_id = device["id"]
+                async def fetch_target_data(target: dict) -> tuple[str, dict]:
+                    target_id = target["id"]
                     try:
-                        state = await self._fetch_device_state(device_id)
+                        state, metrics = await asyncio.gather(
-                        metrics = await self._fetch_device_metrics(device_id)
+                            self._fetch_target_state(target_id),
+                            self._fetch_target_metrics(target_id),
+                        )
+                    except Exception as err:
+                        _LOGGER.warning(
+                            "Failed to fetch data for target %s: %s",
+                            target_id,
+                            err,
+                        )
+                        state = None
+                        metrics = None
 
-                        devices_data[device_id] = {
+                    result: dict[str, Any] = {
-                            "info": device,
+                        "info": target,
                         "state": state,
                         "metrics": metrics,
                     }
-                    except Exception as err:
-                        _LOGGER.warning(
-                            "Failed to fetch data for device %s: %s", device_id, err
-                        )
-                        # Include device info even if state fetch fails
-                        devices_data[device_id] = {
-                            "info": device,
-                            "state": None,
-                            "metrics": None,
-                        }
 
-                # Fetch available displays
+                    # Fetch rectangles for key_colors targets
-                displays = await self._fetch_displays()
+                    if target.get("target_type") == TARGET_TYPE_KEY_COLORS:
+                        kc_settings = target.get("key_colors_settings") or {}
+                        template_id = kc_settings.get("pattern_template_id", "")
+                        if template_id:
+                            result["rectangles"] = await self._fetch_rectangles(
+                                template_id
+                            )
+                        else:
+                            result["rectangles"] = []
+                    else:
+                        result["rectangles"] = []
+
+                    return target_id, result
+
+                results = await asyncio.gather(
+                    *(fetch_target_data(t) for t in targets_list),
+                    return_exceptions=True,
+                )
+
+                for r in results:
+                    if isinstance(r, Exception):
+                        _LOGGER.warning("Target fetch failed: %s", r)
+                        continue
+                    target_id, data = r
+                    targets_data[target_id] = data
+
+                # Fetch devices, CSS sources, value sources, and scene presets in parallel
+                devices_data, css_sources, value_sources, scene_presets = (
+                    await asyncio.gather(
+                        self._fetch_devices(),
+                        self._fetch_css_sources(),
+                        self._fetch_value_sources(),
+                        self._fetch_scene_presets(),
+                    )
+                )
 
                 return {
+                    "targets": targets_data,
                     "devices": devices_data,
-                    "displays": displays,
+                    "css_sources": css_sources,
+                    "value_sources": value_sources,
+                    "scene_presets": scene_presets,
+                    "server_version": self.server_version,
                 }
 
         except asyncio.TimeoutError as err:
@@ -91,89 +136,324 @@ class WLEDScreenControllerCoordinator(DataUpdateCoordinator):
         try:
             async with self.session.get(
                 f"{self.server_url}/health",
-                timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+                timeout=self._timeout,
-            ) as response:
+            ) as resp:
-                response.raise_for_status()
+                resp.raise_for_status()
-                data = await response.json()
+                data = await resp.json()
                 self.server_version = data.get("version", "unknown")
         except Exception as err:
             _LOGGER.warning("Failed to fetch server version: %s", err)
             self.server_version = "unknown"
 
-    async def _fetch_devices(self) -> list[dict[str, Any]]:
+    async def _fetch_targets(self) -> list[dict[str, Any]]:
-        """Fetch devices list."""
+        """Fetch all output targets."""
         async with self.session.get(
-            f"{self.server_url}/api/v1/devices",
+            f"{self.server_url}/api/v1/output-targets",
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+            headers=self._auth_headers,
-        ) as response:
+            timeout=self._timeout,
-            response.raise_for_status()
+        ) as resp:
-            data = await response.json()
+            resp.raise_for_status()
-            return data.get("devices", [])
+            data = await resp.json()
+            return data.get("targets", [])
 
-    async def _fetch_device_state(self, device_id: str) -> dict[str, Any]:
+    async def _fetch_target_state(self, target_id: str) -> dict[str, Any]:
-        """Fetch device processing state."""
+        """Fetch target processing state."""
         async with self.session.get(
-            f"{self.server_url}/api/v1/devices/{device_id}/state",
+            f"{self.server_url}/api/v1/output-targets/{target_id}/state",
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+            headers=self._auth_headers,
-        ) as response:
+            timeout=self._timeout,
-            response.raise_for_status()
+        ) as resp:
-            return await response.json()
+            resp.raise_for_status()
+            return await resp.json()
 
-    async def _fetch_device_metrics(self, device_id: str) -> dict[str, Any]:
+    async def _fetch_target_metrics(self, target_id: str) -> dict[str, Any]:
-        """Fetch device metrics."""
+        """Fetch target metrics."""
         async with self.session.get(
-            f"{self.server_url}/api/v1/devices/{device_id}/metrics",
+            f"{self.server_url}/api/v1/output-targets/{target_id}/metrics",
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+            headers=self._auth_headers,
-        ) as response:
+            timeout=self._timeout,
-            response.raise_for_status()
+        ) as resp:
-            return await response.json()
+            resp.raise_for_status()
+            return await resp.json()
 
-    async def _fetch_displays(self) -> list[dict[str, Any]]:
+    async def _fetch_rectangles(self, template_id: str) -> list[dict]:
-        """Fetch available displays."""
+        """Fetch rectangles for a pattern template (no cache — always fresh)."""
         try:
             async with self.session.get(
-                f"{self.server_url}/api/v1/config/displays",
+                f"{self.server_url}/api/v1/pattern-templates/{template_id}",
-                timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+                headers=self._auth_headers,
-            ) as response:
+                timeout=self._timeout,
-                response.raise_for_status()
+            ) as resp:
-                data = await response.json()
+                resp.raise_for_status()
-                return data.get("displays", [])
+                data = await resp.json()
+                return data.get("rectangles", [])
         except Exception as err:
-            _LOGGER.warning("Failed to fetch displays: %s", err)
+            _LOGGER.warning(
+                "Failed to fetch pattern template %s: %s", template_id, err
+            )
             return []
 
-    async def start_processing(self, device_id: str) -> None:
+    async def _fetch_devices(self) -> dict[str, dict[str, Any]]:
-        """Start processing for a device."""
+        """Fetch all devices with capabilities and brightness."""
-        async with self.session.post(
+        try:
-            f"{self.server_url}/api/v1/devices/{device_id}/start",
+            async with self.session.get(
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+                f"{self.server_url}/api/v1/devices",
-        ) as response:
+                headers=self._auth_headers,
-            response.raise_for_status()
+                timeout=self._timeout,
+            ) as resp:
+                resp.raise_for_status()
+                data = await resp.json()
+                devices = data.get("devices", [])
+        except Exception as err:
+            _LOGGER.warning("Failed to fetch devices: %s", err)
+            return {}
 
-        # Refresh data immediately
+        # Fetch brightness for all capable devices in parallel
-        await self.async_request_refresh()
+        async def fetch_device_entry(device: dict) -> tuple[str, dict[str, Any]]:
+            device_id = device["id"]
+            entry: dict[str, Any] = {"info": device, "brightness": None}
+            if "brightness_control" in (device.get("capabilities") or []):
+                try:
+                    async with self.session.get(
+                        f"{self.server_url}/api/v1/devices/{device_id}/brightness",
+                        headers=self._auth_headers,
+                        timeout=self._timeout,
+                    ) as resp:
+                        if resp.status == 200:
+                            bri_data = await resp.json()
+                            entry["brightness"] = bri_data.get("brightness")
+                except Exception as err:
+                    _LOGGER.warning(
+                        "Failed to fetch brightness for device %s: %s",
+                        device_id, err,
+                    )
+            return device_id, entry
 
-    async def stop_processing(self, device_id: str) -> None:
+        results = await asyncio.gather(
-        """Stop processing for a device."""
+            *(fetch_device_entry(d) for d in devices),
-        async with self.session.post(
+            return_exceptions=True,
-            f"{self.server_url}/api/v1/devices/{device_id}/stop",
+        )
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
-        ) as response:
-            response.raise_for_status()
 
-        # Refresh data immediately
+        devices_data: dict[str, dict[str, Any]] = {}
-        await self.async_request_refresh()
+        for r in results:
+            if isinstance(r, Exception):
+                _LOGGER.warning("Device fetch failed: %s", r)
+                continue
+            device_id, entry = r
+            devices_data[device_id] = entry
 
-    async def update_settings(
+        return devices_data
-        self, device_id: str, settings: dict[str, Any]
+
-    ) -> None:
+    async def set_brightness(self, device_id: str, brightness: int) -> None:
-        """Update device settings."""
+        """Set brightness for a device."""
         async with self.session.put(
-            f"{self.server_url}/api/v1/devices/{device_id}/settings",
+            f"{self.server_url}/api/v1/devices/{device_id}/brightness",
-            json=settings,
+            headers={**self._auth_headers, "Content-Type": "application/json"},
-            timeout=aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT),
+            json={"brightness": brightness},
-        ) as response:
+            timeout=self._timeout,
-            response.raise_for_status()
+        ) as resp:
-
+            if resp.status != 200:
-        # Refresh data immediately
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to set brightness for device %s: %s %s",
+                    device_id, resp.status, body,
+                )
+                resp.raise_for_status()
+        await self.async_request_refresh()
+
+    async def set_color(self, device_id: str, color: list[int] | None) -> None:
+        """Set or clear the static color for a device."""
+        async with self.session.put(
+            f"{self.server_url}/api/v1/devices/{device_id}/color",
+            headers={**self._auth_headers, "Content-Type": "application/json"},
+            json={"color": color},
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to set color for device %s: %s %s",
+                    device_id, resp.status, body,
+                )
+                resp.raise_for_status()
+        await self.async_request_refresh()
+
+    async def set_kc_brightness(self, target_id: str, brightness: int) -> None:
+        """Set brightness for a Key Colors target (0-255 mapped to 0.0-1.0)."""
+        brightness_float = round(brightness / 255, 4)
+        async with self.session.put(
+            f"{self.server_url}/api/v1/output-targets/{target_id}",
+            headers={**self._auth_headers, "Content-Type": "application/json"},
+            json={"key_colors_settings": {"brightness": brightness_float}},
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to set KC brightness for target %s: %s %s",
+                    target_id, resp.status, body,
+                )
+                resp.raise_for_status()
+        await self.async_request_refresh()
+
+    async def _fetch_css_sources(self) -> list[dict[str, Any]]:
+        """Fetch all color strip sources."""
+        try:
+            async with self.session.get(
+                f"{self.server_url}/api/v1/color-strip-sources",
+                headers=self._auth_headers,
+                timeout=self._timeout,
+            ) as resp:
+                resp.raise_for_status()
+                data = await resp.json()
+                return data.get("sources", [])
+        except Exception as err:
+            _LOGGER.warning("Failed to fetch CSS sources: %s", err)
+            return []
+
+    async def _fetch_value_sources(self) -> list[dict[str, Any]]:
+        """Fetch all value sources."""
+        try:
+            async with self.session.get(
+                f"{self.server_url}/api/v1/value-sources",
+                headers=self._auth_headers,
+                timeout=self._timeout,
+            ) as resp:
+                resp.raise_for_status()
+                data = await resp.json()
+                return data.get("sources", [])
+        except Exception as err:
+            _LOGGER.warning("Failed to fetch value sources: %s", err)
+            return []
+
+    async def _fetch_scene_presets(self) -> list[dict[str, Any]]:
+        """Fetch all scene presets."""
+        try:
+            async with self.session.get(
+                f"{self.server_url}/api/v1/scene-presets",
+                headers=self._auth_headers,
+                timeout=self._timeout,
+            ) as resp:
+                resp.raise_for_status()
+                data = await resp.json()
+                return data.get("presets", [])
+        except Exception as err:
+            _LOGGER.warning("Failed to fetch scene presets: %s", err)
+            return []
+
+    async def push_colors(self, source_id: str, colors: list[list[int]]) -> None:
+        """Push flat color array to an api_input CSS source."""
+        async with self.session.post(
+            f"{self.server_url}/api/v1/color-strip-sources/{source_id}/colors",
+            headers={**self._auth_headers, "Content-Type": "application/json"},
+            json={"colors": colors},
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status not in (200, 204):
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to push colors to source %s: %s %s",
+                    source_id, resp.status, body,
+                )
+                resp.raise_for_status()
+
+    async def push_segments(self, source_id: str, segments: list[dict]) -> None:
+        """Push segment data to an api_input CSS source."""
+        async with self.session.post(
+            f"{self.server_url}/api/v1/color-strip-sources/{source_id}/colors",
+            headers={**self._auth_headers, "Content-Type": "application/json"},
+            json={"segments": segments},
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status not in (200, 204):
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to push segments to source %s: %s %s",
+                    source_id, resp.status, body,
+                )
+                resp.raise_for_status()
+
+    async def activate_scene(self, preset_id: str) -> None:
+        """Activate a scene preset."""
+        async with self.session.post(
+            f"{self.server_url}/api/v1/scene-presets/{preset_id}/activate",
+            headers=self._auth_headers,
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to activate scene %s: %s %s",
+                    preset_id, resp.status, body,
+                )
+                resp.raise_for_status()
+        await self.async_request_refresh()
+
+    async def update_source(self, source_id: str, **kwargs: Any) -> None:
+        """Update a color strip source's fields."""
+        async with self.session.put(
+            f"{self.server_url}/api/v1/color-strip-sources/{source_id}",
+            headers={**self._auth_headers, "Content-Type": "application/json"},
+            json=kwargs,
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to update source %s: %s %s",
+                    source_id, resp.status, body,
+                )
+                resp.raise_for_status()
+
+    async def update_target(self, target_id: str, **kwargs: Any) -> None:
+        """Update an output target's fields."""
+        async with self.session.put(
+            f"{self.server_url}/api/v1/output-targets/{target_id}",
+            headers={**self._auth_headers, "Content-Type": "application/json"},
+            json=kwargs,
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to update target %s: %s %s",
+                    target_id, resp.status, body,
+                )
+                resp.raise_for_status()
+        await self.async_request_refresh()
+
+    async def start_processing(self, target_id: str) -> None:
+        """Start processing for a target."""
+        async with self.session.post(
+            f"{self.server_url}/api/v1/output-targets/{target_id}/start",
+            headers=self._auth_headers,
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status == 409:
+                _LOGGER.debug("Target %s already processing", target_id)
+            elif resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to start target %s: %s %s",
+                    target_id, resp.status, body,
+                )
+                resp.raise_for_status()
+        await self.async_request_refresh()
+
+    async def stop_processing(self, target_id: str) -> None:
+        """Stop processing for a target."""
+        async with self.session.post(
+            f"{self.server_url}/api/v1/output-targets/{target_id}/stop",
+            headers=self._auth_headers,
+            timeout=self._timeout,
+        ) as resp:
+            if resp.status == 409:
+                _LOGGER.debug("Target %s already stopped", target_id)
+            elif resp.status != 200:
+                body = await resp.text()
+                _LOGGER.error(
+                    "Failed to stop target %s: %s %s",
+                    target_id, resp.status, body,
+                )
+                resp.raise_for_status()
         await self.async_request_refresh()

custom_components/wled_screen_controller/event_listener.py

@@ -0,0 +1,95 @@
+"""WebSocket event listener for server state change notifications."""
+from __future__ import annotations
+
+import asyncio
+import contextlib
+import json
+import logging
+
+import aiohttp
+
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
+
+from .const import WS_RECONNECT_DELAY, WS_MAX_RECONNECT_DELAY
+
+_LOGGER = logging.getLogger(__name__)
+
+
+class EventStreamListener:
+    """Listens to server WS endpoint for state change events.
+
+    Triggers a coordinator refresh whenever a target starts or stops processing,
+    so HAOS entities react near-instantly to external state changes.
+    """
+
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        server_url: str,
+        api_key: str,
+        coordinator: DataUpdateCoordinator,
+    ) -> None:
+        self._hass = hass
+        self._server_url = server_url
+        self._api_key = api_key
+        self._coordinator = coordinator
+        self._task: asyncio.Task | None = None
+        self._shutting_down = False
+
+    async def start(self) -> None:
+        """Start listening to the event stream."""
+        self._task = self._hass.async_create_background_task(
+            self._ws_loop(),
+            "wled_screen_controller_events",
+        )
+
+    async def _ws_loop(self) -> None:
+        """WebSocket connection loop with reconnection."""
+        delay = WS_RECONNECT_DELAY
+        session = async_get_clientsession(self._hass)
+        ws_base = self._server_url.replace("http://", "ws://").replace(
+            "https://", "wss://"
+        )
+        url = f"{ws_base}/api/v1/events/ws?token={self._api_key}"
+
+        while not self._shutting_down:
+            try:
+                async with session.ws_connect(url) as ws:
+                    delay = WS_RECONNECT_DELAY  # reset on successful connect
+                    _LOGGER.debug("Event stream connected")
+                    async for msg in ws:
+                        if msg.type == aiohttp.WSMsgType.TEXT:
+                            try:
+                                data = json.loads(msg.data)
+                            except json.JSONDecodeError:
+                                continue
+                            if data.get("type") == "state_change":
+                                await self._coordinator.async_request_refresh()
+                        elif msg.type in (
+                            aiohttp.WSMsgType.CLOSED,
+                            aiohttp.WSMsgType.ERROR,
+                        ):
+                            break
+            except asyncio.CancelledError:
+                raise
+            except (aiohttp.ClientError, asyncio.TimeoutError, OSError) as err:
+                _LOGGER.debug("Event stream connection error: %s", err)
+            except Exception as err:
+                _LOGGER.error("Unexpected event stream error: %s", err)
+
+            if self._shutting_down:
+                break
+
+            await asyncio.sleep(delay)
+            delay = min(delay * 2, WS_MAX_RECONNECT_DELAY)
+
+    async def shutdown(self) -> None:
+        """Stop listening."""
+        self._shutting_down = True
+        if self._task:
+            self._task.cancel()
+            with contextlib.suppress(asyncio.CancelledError):
+                await self._task
+            self._task = None

custom_components/wled_screen_controller/light.py

@@ -0,0 +1,151 @@
+"""Light platform for LED Screen Controller (api_input CSS sources)."""
+from __future__ import annotations
+
+import logging
+from typing import Any
+
+from homeassistant.components.light import (
+    ATTR_BRIGHTNESS,
+    ATTR_RGB_COLOR,
+    ColorMode,
+    LightEntity,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DOMAIN, DATA_COORDINATOR
+from .coordinator import WLEDScreenControllerCoordinator
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up LED Screen Controller api_input lights."""
+    data = hass.data[DOMAIN][entry.entry_id]
+    coordinator: WLEDScreenControllerCoordinator = data[DATA_COORDINATOR]
+
+    entities = []
+    if coordinator.data:
+        for source in coordinator.data.get("css_sources", []):
+            if source.get("source_type") == "api_input":
+                entities.append(
+                    ApiInputLight(coordinator, source, entry.entry_id)
+                )
+
+    async_add_entities(entities)
+
+
+class ApiInputLight(CoordinatorEntity, LightEntity):
+    """Representation of an api_input CSS source as a light entity."""
+
+    _attr_has_entity_name = True
+    _attr_color_mode = ColorMode.RGB
+    _attr_supported_color_modes = {ColorMode.RGB}
+    _attr_translation_key = "api_input_light"
+    _attr_icon = "mdi:led-strip-variant"
+
+    def __init__(
+        self,
+        coordinator: WLEDScreenControllerCoordinator,
+        source: dict[str, Any],
+        entry_id: str,
+    ) -> None:
+        """Initialize the light."""
+        super().__init__(coordinator)
+        self._source_id: str = source["id"]
+        self._source_name: str = source.get("name", self._source_id)
+        self._entry_id = entry_id
+        self._attr_unique_id = f"{self._source_id}_light"
+
+        # Restore state from fallback_color
+        fallback = self._get_fallback_color()
+        is_off = fallback == [0, 0, 0]
+        self._is_on: bool = not is_off
+        self._rgb_color: tuple[int, int, int] = (
+            (255, 255, 255) if is_off else tuple(fallback)  # type: ignore[arg-type]
+        )
+        self._brightness: int = 255
+
+    @property
+    def device_info(self) -> dict[str, Any]:
+        """Return device information — one virtual device per api_input source."""
+        return {
+            "identifiers": {(DOMAIN, self._source_id)},
+            "name": self._source_name,
+            "manufacturer": "WLED Screen Controller",
+            "model": "API Input CSS Source",
+        }
+
+    @property
+    def name(self) -> str:
+        """Return the entity name."""
+        return self._source_name
+
+    @property
+    def is_on(self) -> bool:
+        """Return true if the light is on."""
+        return self._is_on
+
+    @property
+    def rgb_color(self) -> tuple[int, int, int]:
+        """Return the current RGB color."""
+        return self._rgb_color
+
+    @property
+    def brightness(self) -> int:
+        """Return the current brightness (0-255)."""
+        return self._brightness
+
+    async def async_turn_on(self, **kwargs: Any) -> None:
+        """Turn on the light, optionally setting color and brightness."""
+        if ATTR_RGB_COLOR in kwargs:
+            self._rgb_color = kwargs[ATTR_RGB_COLOR]
+        if ATTR_BRIGHTNESS in kwargs:
+            self._brightness = kwargs[ATTR_BRIGHTNESS]
+
+        # Scale RGB by brightness
+        scale = self._brightness / 255
+        r, g, b = self._rgb_color
+        scaled = [round(r * scale), round(g * scale), round(b * scale)]
+
+        await self.coordinator.push_segments(
+            self._source_id,
+            [{"start": 0, "length": 9999, "mode": "solid", "color": scaled}],
+        )
+        # Update fallback_color so the color persists beyond the timeout
+        await self.coordinator.update_source(
+            self._source_id, fallback_color=scaled,
+        )
+        self._is_on = True
+        self.async_write_ha_state()
+
+    async def async_turn_off(self, **kwargs: Any) -> None:
+        """Turn off the light by pushing black and setting fallback to black."""
+        off_color = [0, 0, 0]
+        await self.coordinator.push_segments(
+            self._source_id,
+            [{"start": 0, "length": 9999, "mode": "solid", "color": off_color}],
+        )
+        await self.coordinator.update_source(
+            self._source_id, fallback_color=off_color,
+        )
+        self._is_on = False
+        self.async_write_ha_state()
+
+    def _get_fallback_color(self) -> list[int]:
+        """Read fallback_color from the source config in coordinator data."""
+        if not self.coordinator.data:
+            return [0, 0, 0]
+        for source in self.coordinator.data.get("css_sources", []):
+            if source.get("id") == self._source_id:
+                fallback = source.get("fallback_color")
+                if fallback and len(fallback) >= 3:
+                    return list(fallback[:3])
+                break
+        return [0, 0, 0]

custom_components/wled_screen_controller/manifest.json

@@ -1,12 +1,12 @@
 {
   "domain": "wled_screen_controller",
-  "name": "WLED Screen Controller",
+  "name": "LED Screen Controller",
   "codeowners": ["@alexeidolgolyov"],
   "config_flow": true,
   "dependencies": [],
   "documentation": "https://github.com/yourusername/wled-screen-controller",
-  "iot_class": "local_polling",
+  "iot_class": "local_push",
   "issue_tracker": "https://github.com/yourusername/wled-screen-controller/issues",
   "requirements": ["aiohttp>=3.9.0"],
-  "version": "0.1.0"
+  "version": "0.2.0"
 }

custom_components/wled_screen_controller/number.py

@@ -0,0 +1,169 @@
+"""Number platform for LED Screen Controller (device & KC target brightness)."""
+from __future__ import annotations
+
+import logging
+from typing import Any
+
+from homeassistant.components.number import NumberEntity, NumberMode
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DOMAIN, DATA_COORDINATOR, TARGET_TYPE_KEY_COLORS
+from .coordinator import WLEDScreenControllerCoordinator
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up LED Screen Controller brightness numbers."""
+    data = hass.data[DOMAIN][entry.entry_id]
+    coordinator: WLEDScreenControllerCoordinator = data[DATA_COORDINATOR]
+
+    entities = []
+    if coordinator.data and "targets" in coordinator.data:
+        devices = coordinator.data.get("devices") or {}
+
+        for target_id, target_data in coordinator.data["targets"].items():
+            info = target_data["info"]
+
+            if info.get("target_type") == TARGET_TYPE_KEY_COLORS:
+                # KC target — brightness lives in key_colors_settings
+                entities.append(
+                    WLEDScreenControllerKCBrightness(
+                        coordinator, target_id, entry.entry_id,
+                    )
+                )
+                continue
+
+            # LED target — brightness lives on the device
+            device_id = info.get("device_id", "")
+            if not device_id:
+                continue
+
+            device_data = devices.get(device_id)
+            if not device_data:
+                continue
+
+            capabilities = device_data.get("info", {}).get("capabilities") or []
+            if "brightness_control" not in capabilities or "static_color" in capabilities:
+                continue
+
+            entities.append(
+                WLEDScreenControllerBrightness(
+                    coordinator, target_id, device_id, entry.entry_id,
+                )
+            )
+
+    async_add_entities(entities)
+
+
+class WLEDScreenControllerBrightness(CoordinatorEntity, NumberEntity):
+    """Brightness control for an LED device associated with a target."""
+
+    _attr_has_entity_name = True
+    _attr_native_min_value = 0
+    _attr_native_max_value = 255
+    _attr_native_step = 1
+    _attr_mode = NumberMode.SLIDER
+    _attr_icon = "mdi:brightness-6"
+
+    def __init__(
+        self,
+        coordinator: WLEDScreenControllerCoordinator,
+        target_id: str,
+        device_id: str,
+        entry_id: str,
+    ) -> None:
+        """Initialize the brightness number."""
+        super().__init__(coordinator)
+        self._target_id = target_id
+        self._device_id = device_id
+        self._entry_id = entry_id
+        self._attr_unique_id = f"{target_id}_brightness"
+        self._attr_translation_key = "brightness"
+
+    @property
+    def device_info(self) -> dict[str, Any]:
+        """Return device information."""
+        return {"identifiers": {(DOMAIN, self._target_id)}}
+
+    @property
+    def native_value(self) -> float | None:
+        """Return the current brightness value."""
+        if not self.coordinator.data:
+            return None
+        device_data = self.coordinator.data.get("devices", {}).get(self._device_id)
+        if not device_data:
+            return None
+        return device_data.get("brightness")
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        if not self.coordinator.data:
+            return False
+        targets = self.coordinator.data.get("targets", {})
+        devices = self.coordinator.data.get("devices", {})
+        return self._target_id in targets and self._device_id in devices
+
+    async def async_set_native_value(self, value: float) -> None:
+        """Set brightness value."""
+        await self.coordinator.set_brightness(self._device_id, int(value))
+
+
+class WLEDScreenControllerKCBrightness(CoordinatorEntity, NumberEntity):
+    """Brightness control for a Key Colors target."""
+
+    _attr_has_entity_name = True
+    _attr_native_min_value = 0
+    _attr_native_max_value = 255
+    _attr_native_step = 1
+    _attr_mode = NumberMode.SLIDER
+    _attr_icon = "mdi:brightness-6"
+
+    def __init__(
+        self,
+        coordinator: WLEDScreenControllerCoordinator,
+        target_id: str,
+        entry_id: str,
+    ) -> None:
+        """Initialize the KC brightness number."""
+        super().__init__(coordinator)
+        self._target_id = target_id
+        self._entry_id = entry_id
+        self._attr_unique_id = f"{target_id}_brightness"
+        self._attr_translation_key = "brightness"
+
+    @property
+    def device_info(self) -> dict[str, Any]:
+        """Return device information."""
+        return {"identifiers": {(DOMAIN, self._target_id)}}
+
+    @property
+    def native_value(self) -> float | None:
+        """Return the current brightness value (0-255)."""
+        if not self.coordinator.data:
+            return None
+        target_data = self.coordinator.data.get("targets", {}).get(self._target_id)
+        if not target_data:
+            return None
+        kc_settings = target_data.get("info", {}).get("key_colors_settings") or {}
+        brightness_float = kc_settings.get("brightness", 1.0)
+        return round(brightness_float * 255)
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        if not self.coordinator.data:
+            return False
+        return self._target_id in self.coordinator.data.get("targets", {})
+
+    async def async_set_native_value(self, value: float) -> None:
+        """Set brightness value."""
+        await self.coordinator.set_kc_brightness(self._target_id, int(value))

custom_components/wled_screen_controller/select.py

@@ -1,4 +1,4 @@
-"""Select platform for WLED Screen Controller."""
+"""Select platform for LED Screen Controller (CSS source & brightness source)."""
 from __future__ import annotations
 
 import logging
@@ -10,108 +10,168 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
-from .const import DOMAIN
+from .const import DOMAIN, DATA_COORDINATOR, TARGET_TYPE_KEY_COLORS
 from .coordinator import WLEDScreenControllerCoordinator
 
 _LOGGER = logging.getLogger(__name__)
 
+NONE_OPTION = "— None —"
+
 
 async def async_setup_entry(
     hass: HomeAssistant,
     entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
-    """Set up WLED Screen Controller select entities."""
+    """Set up LED Screen Controller select entities."""
     data = hass.data[DOMAIN][entry.entry_id]
-    coordinator: WLEDScreenControllerCoordinator = data["coordinator"]
+    coordinator: WLEDScreenControllerCoordinator = data[DATA_COORDINATOR]
+
+    entities: list[SelectEntity] = []
+    if coordinator.data and "targets" in coordinator.data:
+        for target_id, target_data in coordinator.data["targets"].items():
+            info = target_data["info"]
+
+            # Only LED targets
+            if info.get("target_type") == TARGET_TYPE_KEY_COLORS:
+                continue
 
-    entities = []
-    if coordinator.data and "devices" in coordinator.data:
-        for device_id, device_data in coordinator.data["devices"].items():
-            device_info = device_data["info"]
             entities.append(
-                WLEDScreenControllerDisplaySelect(
+                CSSSourceSelect(coordinator, target_id, entry.entry_id)
-                    coordinator, device_id, device_info, entry.entry_id
             )
+            entities.append(
+                BrightnessSourceSelect(coordinator, target_id, entry.entry_id)
             )
 
     async_add_entities(entities)
 
 
-class WLEDScreenControllerDisplaySelect(CoordinatorEntity, SelectEntity):
+class CSSSourceSelect(CoordinatorEntity, SelectEntity):
-    """Display selection for WLED Screen Controller."""
+    """Select entity for choosing a color strip source for an LED target."""
 
     _attr_has_entity_name = True
-    _attr_icon = "mdi:monitor-multiple"
+    _attr_icon = "mdi:palette"
 
     def __init__(
         self,
         coordinator: WLEDScreenControllerCoordinator,
-        device_id: str,
+        target_id: str,
-        device_info: dict[str, Any],
         entry_id: str,
     ) -> None:
-        """Initialize the select."""
         super().__init__(coordinator)
-        self._device_id = device_id
+        self._target_id = target_id
-        self._device_info = device_info
         self._entry_id = entry_id
-
+        self._attr_unique_id = f"{target_id}_css_source"
-        self._attr_unique_id = f"{device_id}_display"
+        self._attr_translation_key = "color_strip_source"
-        self._attr_name = "Display"
 
     @property
     def device_info(self) -> dict[str, Any]:
-        """Return device information."""
+        return {"identifiers": {(DOMAIN, self._target_id)}}
-        return {
-            "identifiers": {(DOMAIN, self._device_id)},
-        }
 
     @property
     def options(self) -> list[str]:
-        """Return available display options."""
+        if not self.coordinator.data:
-        if not self.coordinator.data or "displays" not in self.coordinator.data:
+            return []
-            return ["Display 0"]
+        sources = self.coordinator.data.get("css_sources") or []
-
+        return [s["name"] for s in sources]
-        displays = self.coordinator.data["displays"]
-        return [f"Display {d['index']}" for d in displays]
 
     @property
     def current_option(self) -> str | None:
-        """Return current display."""
         if not self.coordinator.data:
             return None
-
+        target_data = self.coordinator.data.get("targets", {}).get(self._target_id)
-        device_data = self.coordinator.data["devices"].get(self._device_id)
+        if not target_data:
-        if not device_data or not device_data.get("state"):
+            return None
+        current_id = target_data["info"].get("color_strip_source_id", "")
+        sources = self.coordinator.data.get("css_sources") or []
+        for s in sources:
+            if s["id"] == current_id:
+                return s["name"]
         return None
 
-        display_index = device_data["state"].get("display_index", 0)
+    @property
-        return f"Display {display_index}"
+    def available(self) -> bool:
+        if not self.coordinator.data:
+            return False
+        return self._target_id in self.coordinator.data.get("targets", {})
 
     async def async_select_option(self, option: str) -> None:
-        """Change the selected display."""
+        source_id = self._name_to_id_map().get(option)
-        try:
+        if source_id is None:
-            # Extract display index from option (e.g., "Display 1" -> 1)
+            _LOGGER.error("CSS source not found: %s", option)
-            display_index = int(option.split()[-1])
-
-            # Get current settings
-            device_data = self.coordinator.data["devices"].get(self._device_id)
-            if not device_data:
             return
+        await self.coordinator.update_target(
+            self._target_id, color_strip_source_id=source_id
+        )
 
-            info = device_data["info"]
+    def _name_to_id_map(self) -> dict[str, str]:
-            settings = info.get("settings", {})
+        sources = (self.coordinator.data or {}).get("css_sources") or []
+        return {s["name"]: s["id"] for s in sources}
 
-            # Update settings with new display index
+
-            updated_settings = {
+class BrightnessSourceSelect(CoordinatorEntity, SelectEntity):
-                "display_index": display_index,
+    """Select entity for choosing a brightness value source for an LED target."""
-                "fps": settings.get("fps", 30),
+
-                "border_width": settings.get("border_width", 10),
+    _attr_has_entity_name = True
+    _attr_icon = "mdi:brightness-auto"
+
+    def __init__(
+        self,
+        coordinator: WLEDScreenControllerCoordinator,
+        target_id: str,
+        entry_id: str,
+    ) -> None:
+        super().__init__(coordinator)
+        self._target_id = target_id
+        self._entry_id = entry_id
+        self._attr_unique_id = f"{target_id}_brightness_source"
+        self._attr_translation_key = "brightness_source"
+
+    @property
+    def device_info(self) -> dict[str, Any]:
+        return {"identifiers": {(DOMAIN, self._target_id)}}
+
+    @property
+    def options(self) -> list[str]:
+        if not self.coordinator.data:
+            return [NONE_OPTION]
+        sources = self.coordinator.data.get("value_sources") or []
+        return [NONE_OPTION] + [s["name"] for s in sources]
+
+    @property
+    def current_option(self) -> str | None:
+        if not self.coordinator.data:
+            return None
+        target_data = self.coordinator.data.get("targets", {}).get(self._target_id)
+        if not target_data:
+            return None
+        current_id = target_data["info"].get("brightness_value_source_id", "")
+        if not current_id:
+            return NONE_OPTION
+        sources = self.coordinator.data.get("value_sources") or []
+        for s in sources:
+            if s["id"] == current_id:
+                return s["name"]
+        return NONE_OPTION
+
+    @property
+    def available(self) -> bool:
+        if not self.coordinator.data:
+            return False
+        return self._target_id in self.coordinator.data.get("targets", {})
+
+    async def async_select_option(self, option: str) -> None:
+        if option == NONE_OPTION:
+            source_id = ""
+        else:
+            name_map = {
+                s["name"]: s["id"]
+                for s in (self.coordinator.data or {}).get("value_sources") or []
             }
-
+            source_id = name_map.get(option)
-            await self.coordinator.update_settings(self._device_id, updated_settings)
+            if source_id is None:
-
+                _LOGGER.error("Value source not found: %s", option)
-        except Exception as err:
+                return
-            _LOGGER.error("Failed to update display: %s", err)
+        await self.coordinator.update_target(
-            raise
+            self._target_id, brightness_value_source_id=source_id
+        )

custom_components/wled_screen_controller/sensor.py

@@ -1,7 +1,8 @@
-"""Sensor platform for WLED Screen Controller."""
+"""Sensor platform for LED Screen Controller."""
 from __future__ import annotations
 
 import logging
+from collections.abc import Callable
 from typing import Any
 
 from homeassistant.components.sensor import (
@@ -10,13 +11,18 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import UnitOfTime
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
-from .const import DOMAIN
+from .const import (
+    DOMAIN,
+    TARGET_TYPE_KEY_COLORS,
+    DATA_COORDINATOR,
+    DATA_WS_MANAGER,
+)
 from .coordinator import WLEDScreenControllerCoordinator
+from .ws_manager import KeyColorsWebSocketManager
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -26,33 +32,35 @@ async def async_setup_entry(
     entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
-    """Set up WLED Screen Controller sensors."""
+    """Set up LED Screen Controller sensors."""
     data = hass.data[DOMAIN][entry.entry_id]
-    coordinator: WLEDScreenControllerCoordinator = data["coordinator"]
+    coordinator: WLEDScreenControllerCoordinator = data[DATA_COORDINATOR]
+    ws_manager: KeyColorsWebSocketManager = data[DATA_WS_MANAGER]
 
-    entities = []
+    entities: list[SensorEntity] = []
-    if coordinator.data and "devices" in coordinator.data:
+    if coordinator.data and "targets" in coordinator.data:
-        for device_id, device_data in coordinator.data["devices"].items():
+        for target_id, target_data in coordinator.data["targets"].items():
-            device_info = device_data["info"]
-
-            # FPS sensor
             entities.append(
-                WLEDScreenControllerFPSSensor(
+                WLEDScreenControllerFPSSensor(coordinator, target_id, entry.entry_id)
-                    coordinator, device_id, device_info, entry.entry_id
             )
-            )
-
-            # Status sensor
             entities.append(
                 WLEDScreenControllerStatusSensor(
-                    coordinator, device_id, device_info, entry.entry_id
+                    coordinator, target_id, entry.entry_id
                 )
             )
 
-            # Frames processed sensor
+            # Add color sensors for Key Colors targets
+            info = target_data["info"]
+            if info.get("target_type") == TARGET_TYPE_KEY_COLORS:
+                rectangles = target_data.get("rectangles", [])
+                for rect in rectangles:
                     entities.append(
-                WLEDScreenControllerFramesSensor(
+                        WLEDScreenControllerColorSensor(
-                    coordinator, device_id, device_info, entry.entry_id
+                            coordinator=coordinator,
+                            ws_manager=ws_manager,
+                            target_id=target_id,
+                            rectangle_name=rect["name"],
+                            entry_id=entry.entry_id,
                         )
                     )
 
@@ -60,146 +68,206 @@ async def async_setup_entry(
 
 
 class WLEDScreenControllerFPSSensor(CoordinatorEntity, SensorEntity):
-    """FPS sensor for WLED Screen Controller."""
+    """FPS sensor for a LED Screen Controller target."""
 
     _attr_has_entity_name = True
     _attr_state_class = SensorStateClass.MEASUREMENT
     _attr_native_unit_of_measurement = "FPS"
     _attr_icon = "mdi:speedometer"
+    _attr_suggested_display_precision = 1
 
     def __init__(
         self,
         coordinator: WLEDScreenControllerCoordinator,
-        device_id: str,
+        target_id: str,
-        device_info: dict[str, Any],
         entry_id: str,
     ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
-        self._device_id = device_id
+        self._target_id = target_id
-        self._device_info = device_info
         self._entry_id = entry_id
-
+        self._attr_unique_id = f"{target_id}_fps"
-        self._attr_unique_id = f"{device_id}_fps"
+        self._attr_translation_key = "fps"
-        self._attr_name = "FPS"
 
     @property
     def device_info(self) -> dict[str, Any]:
         """Return device information."""
-        return {
+        return {"identifiers": {(DOMAIN, self._target_id)}}
-            "identifiers": {(DOMAIN, self._device_id)},
-        }
 
     @property
     def native_value(self) -> float | None:
         """Return the FPS value."""
-        if not self.coordinator.data:
+        target_data = self._get_target_data()
+        if not target_data or not target_data.get("state"):
             return None
-
+        state = target_data["state"]
-        device_data = self.coordinator.data["devices"].get(self._device_id)
+        if not state.get("processing"):
-        if not device_data or not device_data.get("state"):
             return None
-
+        return state.get("fps_actual")
-        return device_data["state"].get("fps_actual")
 
     @property
     def extra_state_attributes(self) -> dict[str, Any]:
         """Return additional attributes."""
+        target_data = self._get_target_data()
+        if not target_data or not target_data.get("state"):
+            return {}
+        return {"fps_target": target_data["state"].get("fps_target")}
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        return self._get_target_data() is not None
+
+    def _get_target_data(self) -> dict[str, Any] | None:
         if not self.coordinator.data:
-            return {}
+            return None
-
+        return self.coordinator.data.get("targets", {}).get(self._target_id)
-        device_data = self.coordinator.data["devices"].get(self._device_id)
-        if not device_data or not device_data.get("state"):
-            return {}
-
-        return {
-            "target_fps": device_data["state"].get("fps_target"),
-        }
 
 
 class WLEDScreenControllerStatusSensor(CoordinatorEntity, SensorEntity):
-    """Status sensor for WLED Screen Controller."""
+    """Status sensor for a LED Screen Controller target."""
 
     _attr_has_entity_name = True
     _attr_icon = "mdi:information-outline"
+    _attr_device_class = SensorDeviceClass.ENUM
+    _attr_options = ["processing", "idle", "error", "unavailable"]
 
     def __init__(
         self,
         coordinator: WLEDScreenControllerCoordinator,
-        device_id: str,
+        target_id: str,
-        device_info: dict[str, Any],
         entry_id: str,
     ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
-        self._device_id = device_id
+        self._target_id = target_id
-        self._device_info = device_info
         self._entry_id = entry_id
-
+        self._attr_unique_id = f"{target_id}_status"
-        self._attr_unique_id = f"{device_id}_status"
+        self._attr_translation_key = "status"
-        self._attr_name = "Status"
 
     @property
     def device_info(self) -> dict[str, Any]:
         """Return device information."""
-        return {
+        return {"identifiers": {(DOMAIN, self._target_id)}}
-            "identifiers": {(DOMAIN, self._device_id)},
-        }
 
     @property
     def native_value(self) -> str:
         """Return the status."""
-        if not self.coordinator.data:
+        target_data = self._get_target_data()
-            return "unknown"
+        if not target_data:
-
-        device_data = self.coordinator.data["devices"].get(self._device_id)
-        if not device_data:
             return "unavailable"
-
+        state = target_data.get("state")
-        if device_data.get("state") and device_data["state"].get("processing"):
+        if not state:
+            return "unavailable"
+        if state.get("processing"):
+            errors = state.get("errors", [])
+            if errors:
+                return "error"
             return "processing"
-
         return "idle"
 
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        return self._get_target_data() is not None
 
-class WLEDScreenControllerFramesSensor(CoordinatorEntity, SensorEntity):
+    def _get_target_data(self) -> dict[str, Any] | None:
-    """Frames processed sensor."""
+        if not self.coordinator.data:
+            return None
+        return self.coordinator.data.get("targets", {}).get(self._target_id)
+
+
+class WLEDScreenControllerColorSensor(CoordinatorEntity, SensorEntity):
+    """Color sensor reporting the extracted screen color for a Key Colors rectangle."""
 
     _attr_has_entity_name = True
-    _attr_state_class = SensorStateClass.TOTAL_INCREASING
+    _attr_icon = "mdi:palette"
-    _attr_icon = "mdi:counter"
 
     def __init__(
         self,
         coordinator: WLEDScreenControllerCoordinator,
-        device_id: str,
+        ws_manager: KeyColorsWebSocketManager,
-        device_info: dict[str, Any],
+        target_id: str,
+        rectangle_name: str,
         entry_id: str,
     ) -> None:
-        """Initialize the sensor."""
+        """Initialize the color sensor."""
         super().__init__(coordinator)
-        self._device_id = device_id
+        self._target_id = target_id
-        self._device_info = device_info
+        self._rectangle_name = rectangle_name
+        self._ws_manager = ws_manager
         self._entry_id = entry_id
+        self._unregister_ws: Callable[[], None] | None = None
 
-        self._attr_unique_id = f"{device_id}_frames"
+        sanitized = rectangle_name.lower().replace(" ", "_").replace("-", "_")
-        self._attr_name = "Frames Processed"
+        self._attr_unique_id = f"{target_id}_{sanitized}_color"
+        self._attr_translation_key = "rectangle_color"
+        self._attr_translation_placeholders = {"rectangle_name": rectangle_name}
 
     @property
     def device_info(self) -> dict[str, Any]:
         """Return device information."""
+        return {"identifiers": {(DOMAIN, self._target_id)}}
+
+    async def async_added_to_hass(self) -> None:
+        """Register WS callback when entity is added."""
+        await super().async_added_to_hass()
+        self._unregister_ws = self._ws_manager.register_callback(
+            self._target_id, self._handle_color_update
+        )
+
+    async def async_will_remove_from_hass(self) -> None:
+        """Unregister WS callback when entity is removed."""
+        if self._unregister_ws:
+            self._unregister_ws()
+            self._unregister_ws = None
+        await super().async_will_remove_from_hass()
+
+    def _handle_color_update(self, colors: dict) -> None:
+        """Handle incoming color update from WebSocket."""
+        if self._rectangle_name in colors:
+            self.async_write_ha_state()
+
+    @property
+    def native_value(self) -> str | None:
+        """Return the hex color string (e.g. #FF8800)."""
+        color = self._get_color()
+        if color is None:
+            return None
+        return f"#{color['r']:02X}{color['g']:02X}{color['b']:02X}"
+
+    @property
+    def extra_state_attributes(self) -> dict[str, Any]:
+        """Return r, g, b, brightness as attributes."""
+        color = self._get_color()
+        if color is None:
+            return {}
+        r, g, b = color["r"], color["g"], color["b"]
+        brightness = int(0.299 * r + 0.587 * g + 0.114 * b)
         return {
-            "identifiers": {(DOMAIN, self._device_id)},
+            "r": r,
+            "g": g,
+            "b": b,
+            "brightness": brightness,
+            "rgb_color": [r, g, b],
         }
 
     @property
-    def native_value(self) -> int | None:
+    def available(self) -> bool:
-        """Return frames processed."""
+        """Return if entity is available."""
+        return self._get_target_data() is not None
+
+    def _get_color(self) -> dict[str, int] | None:
+        """Get the current color for this rectangle from WS manager."""
+        target_data = self._get_target_data()
+        if not target_data or not target_data.get("state"):
+            return None
+        if not target_data["state"].get("processing"):
+            return None
+        colors = self._ws_manager.get_latest_colors(self._target_id)
+        return colors.get(self._rectangle_name)
+
+    def _get_target_data(self) -> dict[str, Any] | None:
         if not self.coordinator.data:
             return None
-
+        return self.coordinator.data.get("targets", {}).get(self._target_id)
-        device_data = self.coordinator.data["devices"].get(self._device_id)
-        if not device_data or not device_data.get("metrics"):
-            return None
-
-        return device_data["metrics"].get("frames_processed", 0)

custom_components/wled_screen_controller/services.yaml

@@ -0,0 +1,19 @@
+set_leds:
+  name: Set LEDs
+  description: Push segment data to an api_input color strip source
+  fields:
+    source_id:
+      name: Source ID
+      description: The api_input CSS source ID (e.g., css_abc12345)
+      required: true
+      selector:
+        text:
+    segments:
+      name: Segments
+      description: >
+        List of segment objects. Each segment has: start (int), length (int),
+        mode ("solid"/"per_pixel"/"gradient"), color ([R,G,B] for solid),
+        colors ([[R,G,B],...] for per_pixel/gradient)
+      required: true
+      selector:
+        object:

custom_components/wled_screen_controller/strings.json

@@ -2,20 +2,90 @@
   "config": {
     "step": {
       "user": {
-        "title": "Set up WLED Screen Controller",
+        "title": "Set up LED Screen Controller",
-        "description": "Enter the URL of your WLED Screen Controller server",
+        "description": "Enter the URL and API key for your LED Screen Controller server.",
         "data": {
-          "name": "Name",
+          "server_name": "Server Name",
-          "server_url": "Server URL"
+          "server_url": "Server URL",
+          "api_key": "API Key"
+        },
+        "data_description": {
+          "server_name": "Display name for this server in Home Assistant",
+          "server_url": "URL of your LED Screen Controller server (e.g., http://192.168.1.100:8080)",
+          "api_key": "API key from your server's configuration file"
         }
       }
     },
     "error": {
-      "cannot_connect": "Failed to connect to server. Check the URL and ensure the server is running.",
+      "cannot_connect": "Failed to connect to server.",
-      "unknown": "Unexpected error occurred"
+      "invalid_api_key": "Invalid API key.",
+      "unknown": "Unexpected error occurred."
     },
     "abort": {
-      "already_configured": "This server is already configured"
+      "already_configured": "This server is already configured."
+    }
+  },
+  "entity": {
+    "button": {
+      "activate_scene": {
+        "name": "{scene_name}"
+      }
+    },
+    "light": {
+      "api_input_light": {
+        "name": "Light"
+      }
+    },
+    "switch": {
+      "processing": {
+        "name": "Processing"
+      }
+    },
+    "sensor": {
+      "fps": {
+        "name": "FPS"
+      },
+      "status": {
+        "name": "Status",
+        "state": {
+          "processing": "Processing",
+          "idle": "Idle",
+          "error": "Error",
+          "unavailable": "Unavailable"
+        }
+      },
+      "rectangle_color": {
+        "name": "{rectangle_name} Color"
+      }
+    },
+    "number": {
+      "brightness": {
+        "name": "Brightness"
+      }
+    },
+    "select": {
+      "color_strip_source": {
+        "name": "Color Strip Source"
+      },
+      "brightness_source": {
+        "name": "Brightness Source"
+      }
+    }
+  },
+  "services": {
+    "set_leds": {
+      "name": "Set LEDs",
+      "description": "Push segment data to an api_input color strip source.",
+      "fields": {
+        "source_id": {
+          "name": "Source ID",
+          "description": "The api_input CSS source ID (e.g., css_abc12345)."
+        },
+        "segments": {
+          "name": "Segments",
+          "description": "List of segment objects with start, length, mode, and color/colors fields."
+        }
+      }
     }
   }
 }

custom_components/wled_screen_controller/switch.py

@@ -1,4 +1,4 @@
-"""Switch platform for WLED Screen Controller."""
+"""Switch platform for LED Screen Controller."""
 from __future__ import annotations
 
 import logging
@@ -10,7 +10,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
-from .const import DOMAIN, ATTR_DEVICE_ID
+from .const import DOMAIN, DATA_COORDINATOR
 from .coordinator import WLEDScreenControllerCoordinator
 
 _LOGGER = logging.getLogger(__name__)
@@ -21,93 +21,71 @@ async def async_setup_entry(
     entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
-    """Set up WLED Screen Controller switches."""
+    """Set up LED Screen Controller switches."""
     data = hass.data[DOMAIN][entry.entry_id]
-    coordinator: WLEDScreenControllerCoordinator = data["coordinator"]
+    coordinator: WLEDScreenControllerCoordinator = data[DATA_COORDINATOR]
 
     entities = []
-    if coordinator.data and "devices" in coordinator.data:
+    if coordinator.data and "targets" in coordinator.data:
-        for device_id, device_data in coordinator.data["devices"].items():
+        for target_id, target_data in coordinator.data["targets"].items():
             entities.append(
-                WLEDScreenControllerSwitch(
+                WLEDScreenControllerSwitch(coordinator, target_id, entry.entry_id)
-                    coordinator, device_id, device_data["info"], entry.entry_id
-                )
             )
 
     async_add_entities(entities)
 
 
 class WLEDScreenControllerSwitch(CoordinatorEntity, SwitchEntity):
-    """Representation of a WLED Screen Controller processing switch."""
+    """Representation of a LED Screen Controller target processing switch."""
 
     _attr_has_entity_name = True
 
     def __init__(
         self,
         coordinator: WLEDScreenControllerCoordinator,
-        device_id: str,
+        target_id: str,
-        device_info: dict[str, Any],
         entry_id: str,
     ) -> None:
         """Initialize the switch."""
         super().__init__(coordinator)
-        self._device_id = device_id
+        self._target_id = target_id
-        self._device_info = device_info
         self._entry_id = entry_id
-
+        self._attr_unique_id = f"{target_id}_processing"
-        self._attr_unique_id = f"{device_id}_processing"
+        self._attr_translation_key = "processing"
-        self._attr_name = "Processing"
         self._attr_icon = "mdi:television-ambient-light"
 
     @property
     def device_info(self) -> dict[str, Any]:
         """Return device information."""
-        return {
+        return {"identifiers": {(DOMAIN, self._target_id)}}
-            "identifiers": {(DOMAIN, self._device_id)},
-        }
 
     @property
     def is_on(self) -> bool:
         """Return true if processing is active."""
-        if not self.coordinator.data:
+        target_data = self._get_target_data()
+        if not target_data or not target_data.get("state"):
             return False
-
+        return target_data["state"].get("processing", False)
-        device_data = self.coordinator.data["devices"].get(self._device_id)
-        if not device_data or not device_data.get("state"):
-            return False
-
-        return device_data["state"].get("processing", False)
 
     @property
     def available(self) -> bool:
         """Return if entity is available."""
-        if not self.coordinator.data:
+        return self._get_target_data() is not None
-            return False
-
-        device_data = self.coordinator.data["devices"].get(self._device_id)
-        return device_data is not None
 
     @property
     def extra_state_attributes(self) -> dict[str, Any]:
         """Return additional state attributes."""
-        if not self.coordinator.data:
+        target_data = self._get_target_data()
+        if not target_data:
             return {}
 
-        device_data = self.coordinator.data["devices"].get(self._device_id)
+        attrs: dict[str, Any] = {"target_id": self._target_id}
-        if not device_data:
+        state = target_data.get("state") or {}
-            return {}
+        metrics = target_data.get("metrics") or {}
-
-        state = device_data.get("state", {})
-        metrics = device_data.get("metrics", {})
-
-        attrs = {
-            ATTR_DEVICE_ID: self._device_id,
-        }
 
         if state:
             attrs["fps_target"] = state.get("fps_target")
             attrs["fps_actual"] = state.get("fps_actual")
-            attrs["display_index"] = state.get("display_index")
 
         if metrics:
             attrs["frames_processed"] = metrics.get("frames_processed")
@@ -117,17 +95,15 @@ class WLEDScreenControllerSwitch(CoordinatorEntity, SwitchEntity):
         return attrs
 
     async def async_turn_on(self, **kwargs: Any) -> None:
-        """Turn on processing."""
+        """Start processing."""
-        try:
+        await self.coordinator.start_processing(self._target_id)
-            await self.coordinator.start_processing(self._device_id)
-        except Exception as err:
-            _LOGGER.error("Failed to start processing: %s", err)
-            raise
 
     async def async_turn_off(self, **kwargs: Any) -> None:
-        """Turn off processing."""
+        """Stop processing."""
-        try:
+        await self.coordinator.stop_processing(self._target_id)
-            await self.coordinator.stop_processing(self._device_id)
+
-        except Exception as err:
+    def _get_target_data(self) -> dict[str, Any] | None:
-            _LOGGER.error("Failed to stop processing: %s", err)
+        """Get target data from coordinator."""
-            raise
+        if not self.coordinator.data:
+            return None
+        return self.coordinator.data.get("targets", {}).get(self._target_id)

custom_components/wled_screen_controller/translations/en.json

@@ -2,20 +2,74 @@
   "config": {
     "step": {
       "user": {
-        "title": "Set up WLED Screen Controller",
+        "title": "Set up LED Screen Controller",
-        "description": "Enter the URL of your WLED Screen Controller server",
+        "description": "Enter the URL and API key for your LED Screen Controller server.",
         "data": {
-          "name": "Name",
+          "server_name": "Server Name",
-          "server_url": "Server URL"
+          "server_url": "Server URL",
+          "api_key": "API Key"
+        },
+        "data_description": {
+          "server_name": "Display name for this server in Home Assistant",
+          "server_url": "URL of your LED Screen Controller server (e.g., http://192.168.1.100:8080)",
+          "api_key": "API key from your server's configuration file"
         }
       }
     },
     "error": {
-      "cannot_connect": "Failed to connect to server. Check the URL and ensure the server is running.",
+      "cannot_connect": "Failed to connect to server.",
-      "unknown": "Unexpected error occurred"
+      "invalid_api_key": "Invalid API key.",
+      "unknown": "Unexpected error occurred."
     },
     "abort": {
-      "already_configured": "This server is already configured"
+      "already_configured": "This server is already configured."
+    }
+  },
+  "entity": {
+    "button": {
+      "activate_scene": {
+        "name": "{scene_name}"
+      }
+    },
+    "light": {
+      "api_input_light": {
+        "name": "Light"
+      }
+    },
+    "switch": {
+      "processing": {
+        "name": "Processing"
+      }
+    },
+    "sensor": {
+      "fps": {
+        "name": "FPS"
+      },
+      "status": {
+        "name": "Status",
+        "state": {
+          "processing": "Processing",
+          "idle": "Idle",
+          "error": "Error",
+          "unavailable": "Unavailable"
+        }
+      },
+      "rectangle_color": {
+        "name": "{rectangle_name} Color"
+      }
+    },
+    "number": {
+      "brightness": {
+        "name": "Brightness"
+      }
+    },
+    "select": {
+      "color_strip_source": {
+        "name": "Color Strip Source"
+      },
+      "brightness_source": {
+        "name": "Brightness Source"
+      }
     }
   }
 }

custom_components/wled_screen_controller/translations/ru.json

@@ -0,0 +1,75 @@
+{
+  "config": {
+    "step": {
+      "user": {
+        "title": "Настройка LED Screen Controller",
+        "description": "Введите URL и API-ключ вашего сервера LED Screen Controller.",
+        "data": {
+          "server_name": "Имя сервера",
+          "server_url": "URL сервера",
+          "api_key": "API-ключ"
+        },
+        "data_description": {
+          "server_name": "Отображаемое имя сервера в Home Assistant",
+          "server_url": "URL сервера LED Screen Controller (например, http://192.168.1.100:8080)",
+          "api_key": "API-ключ из конфигурационного файла сервера"
+        }
+      }
+    },
+    "error": {
+      "cannot_connect": "Не удалось подключиться к серверу.",
+      "invalid_api_key": "Неверный API-ключ.",
+      "unknown": "Произошла непредвиденная ошибка."
+    },
+    "abort": {
+      "already_configured": "Этот сервер уже настроен."
+    }
+  },
+  "entity": {
+    "button": {
+      "activate_scene": {
+        "name": "{scene_name}"
+      }
+    },
+    "light": {
+      "api_input_light": {
+        "name": "Подсветка"
+      }
+    },
+    "switch": {
+      "processing": {
+        "name": "Обработка"
+      }
+    },
+    "sensor": {
+      "fps": {
+        "name": "FPS"
+      },
+      "status": {
+        "name": "Статус",
+        "state": {
+          "processing": "Обработка",
+          "idle": "Ожидание",
+          "error": "Ошибка",
+          "unavailable": "Недоступен"
+        }
+      },
+      "rectangle_color": {
+        "name": "{rectangle_name} Цвет"
+      }
+    },
+    "number": {
+      "brightness": {
+        "name": "Яркость"
+      }
+    },
+    "select": {
+      "color_strip_source": {
+        "name": "Источник цветовой полосы"
+      },
+      "brightness_source": {
+        "name": "Источник яркости"
+      }
+    }
+  }
+}

custom_components/wled_screen_controller/ws_manager.py

@@ -0,0 +1,136 @@
+"""WebSocket connection manager for Key Colors target color streams."""
+from __future__ import annotations
+
+import asyncio
+import contextlib
+import json
+import logging
+from collections.abc import Callable
+from typing import Any
+
+import aiohttp
+
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+
+from .const import WS_RECONNECT_DELAY, WS_MAX_RECONNECT_DELAY
+
+_LOGGER = logging.getLogger(__name__)
+
+
+class KeyColorsWebSocketManager:
+    """Manages WebSocket connections for Key Colors target color streams."""
+
+    def __init__(
+        self,
+        hass: HomeAssistant,
+        server_url: str,
+        api_key: str,
+    ) -> None:
+        self._hass = hass
+        self._server_url = server_url
+        self._api_key = api_key
+        self._connections: dict[str, asyncio.Task] = {}
+        self._callbacks: dict[str, list[Callable]] = {}
+        self._latest_colors: dict[str, dict[str, dict[str, int]]] = {}
+        self._shutting_down = False
+
+    def _get_ws_url(self, target_id: str) -> str:
+        """Build WebSocket URL for a target."""
+        ws_base = self._server_url.replace("http://", "ws://").replace(
+            "https://", "wss://"
+        )
+        return f"{ws_base}/api/v1/output-targets/{target_id}/ws?token={self._api_key}"
+
+    async def start_listening(self, target_id: str) -> None:
+        """Start WebSocket connection for a target."""
+        if target_id in self._connections:
+            return
+        task = self._hass.async_create_background_task(
+            self._ws_loop(target_id),
+            f"wled_screen_controller_ws_{target_id}",
+        )
+        self._connections[target_id] = task
+
+    async def stop_listening(self, target_id: str) -> None:
+        """Stop WebSocket connection for a target."""
+        task = self._connections.pop(target_id, None)
+        if task:
+            task.cancel()
+            with contextlib.suppress(asyncio.CancelledError):
+                await task
+        self._latest_colors.pop(target_id, None)
+
+    def register_callback(
+        self, target_id: str, callback: Callable
+    ) -> Callable[[], None]:
+        """Register a callback for color updates. Returns unregister function."""
+        self._callbacks.setdefault(target_id, []).append(callback)
+
+        def unregister() -> None:
+            cbs = self._callbacks.get(target_id)
+            if cbs and callback in cbs:
+                cbs.remove(callback)
+
+        return unregister
+
+    def get_latest_colors(self, target_id: str) -> dict[str, dict[str, int]]:
+        """Get latest colors for a target."""
+        return self._latest_colors.get(target_id, {})
+
+    async def _ws_loop(self, target_id: str) -> None:
+        """WebSocket connection loop with reconnection."""
+        delay = WS_RECONNECT_DELAY
+        session = async_get_clientsession(self._hass)
+
+        while not self._shutting_down:
+            try:
+                url = self._get_ws_url(target_id)
+                async with session.ws_connect(url) as ws:
+                    delay = WS_RECONNECT_DELAY  # reset on successful connect
+                    _LOGGER.debug("WS connected for target %s", target_id)
+                    async for msg in ws:
+                        if msg.type == aiohttp.WSMsgType.TEXT:
+                            self._handle_message(target_id, msg.data)
+                        elif msg.type in (
+                            aiohttp.WSMsgType.CLOSED,
+                            aiohttp.WSMsgType.ERROR,
+                        ):
+                            break
+            except asyncio.CancelledError:
+                raise
+            except (aiohttp.ClientError, asyncio.TimeoutError, OSError) as err:
+                _LOGGER.debug("WS connection error for %s: %s", target_id, err)
+            except Exception as err:
+                _LOGGER.error("Unexpected WS error for %s: %s", target_id, err)
+
+            if self._shutting_down:
+                break
+
+            await asyncio.sleep(delay)
+            delay = min(delay * 2, WS_MAX_RECONNECT_DELAY)
+
+    def _handle_message(self, target_id: str, raw: str) -> None:
+        """Handle incoming WebSocket message."""
+        try:
+            data = json.loads(raw)
+        except json.JSONDecodeError:
+            return
+
+        if data.get("type") != "colors_update":
+            return
+
+        colors: dict[str, Any] = data.get("colors", {})
+        self._latest_colors[target_id] = colors
+
+        for cb in self._callbacks.get(target_id, []):
+            try:
+                cb(colors)
+            except Exception:
+                _LOGGER.exception("Error in WS color callback for %s", target_id)
+
+    async def shutdown(self) -> None:
+        """Stop all WebSocket connections."""
+        self._shutting_down = True
+        for target_id in list(self._connections):
+            await self.stop_listening(target_id)

docs/API.md

@@ -201,12 +201,11 @@ Get processing settings.
 {
   "display_index": 0,
   "fps": 30,
-  "border_width": 10,
+  "brightness": 1.0,
-  "color_correction": {
+  "smoothing": 0.3,
-    "gamma": 2.2,
+  "interpolation_mode": "average",
-    "saturation": 1.0,
+  "standby_interval": 1.0,
-    "brightness": 1.0
+  "state_check_interval": 30
-  }
 }
 ```
 
@@ -219,12 +218,7 @@ Update processing settings.
 {
   "display_index": 1,
   "fps": 60,
-  "border_width": 15,
-  "color_correction": {
-    "gamma": 2.4,
-    "saturation": 1.2,
   "brightness": 0.8
-  }
 }
 ```
 

plans/demo-mode/CONTEXT.md

@@ -0,0 +1,30 @@
+# Feature Context: Demo Mode
+
+## Current State
+Starting implementation. No changes made yet.
+
+## Key Architecture Notes
+- `EngineRegistry` (class-level dict) holds capture engines, auto-registered in `capture_engines/__init__.py`
+- `AudioEngineRegistry` (class-level dict) holds audio engines, auto-registered in `audio/__init__.py`
+- `LEDDeviceProvider` instances registered via `register_provider()` in `led_client.py`
+- Already has `MockDeviceProvider` + `MockClient` (device type "mock") for testing
+- Config is `pydantic_settings.BaseSettings` in `config.py`, loaded from YAML + env vars
+- Frontend header in `templates/index.html` line 27-31: title + version badge
+- Frontend bundle: `cd server && npm run build` (esbuild)
+- Data stored as JSON in `data/` directory, paths configured via `StorageConfig`
+
+## Temporary Workarounds
+- None yet
+
+## Cross-Phase Dependencies
+- Phase 1 (config flag) is foundational — all other phases depend on `is_demo_mode()`
+- Phase 2 & 3 (engines) can be done independently of each other
+- Phase 4 (seed data) depends on knowing what entities to create, which is informed by phases 2-3
+- Phase 5 (frontend) depends on the system info API field from phase 1
+- Phase 6 (engine resolution) depends on engines existing from phases 2-3
+
+## Implementation Notes
+- Demo mode activated via `WLED_DEMO=true` env var or `demo: true` in YAML config
+- Isolated data directory `data/demo/` keeps demo entities separate from real config
+- Demo engines use `ENGINE_TYPE = "demo"` and are always registered but return `is_available() = True` only in demo mode
+- The existing `MockDeviceProvider`/`MockClient` can be reused or extended for demo device output

plans/demo-mode/PLAN.md

@@ -0,0 +1,44 @@
+# Feature: Demo Mode
+
+**Branch:** `feature/demo-mode`
+**Base branch:** `master`
+**Created:** 2026-03-20
+**Status:** 🟡 In Progress
+**Strategy:** Big Bang
+**Mode:** Automated
+**Execution:** Orchestrator
+
+## Summary
+Add a demo mode that allows users to explore and test the app without real hardware. Virtual capture engines, audio engines, and device providers replace real hardware. An isolated data directory with seed data provides a fully populated sandbox. A visual indicator in the UI makes it clear the app is running in demo mode.
+
+## Build & Test Commands
+- **Build (frontend):** `cd server && npm run build`
+- **Typecheck (frontend):** `cd server && npm run typecheck`
+- **Test (backend):** `cd server && python -m pytest ../tests/ -x`
+- **Server start:** `cd server && python -m wled_controller.main`
+
+## Phases
+
+- [x] Phase 1: Demo Mode Config & Flag [domain: backend] → [subplan](./phase-1-config-flag.md)
+- [x] Phase 2: Virtual Capture Engine [domain: backend] → [subplan](./phase-2-virtual-capture-engine.md)
+- [x] Phase 3: Virtual Audio Engine [domain: backend] → [subplan](./phase-3-virtual-audio-engine.md)
+- [x] Phase 4: Demo Device Provider & Seed Data [domain: backend] → [subplan](./phase-4-demo-device-seed-data.md)
+- [x] Phase 5: Frontend Demo Indicator & Sandbox UX [domain: fullstack] → [subplan](./phase-5-frontend-demo-ux.md)
+- [x] Phase 6: Demo-only Engine Resolution [domain: backend] → [subplan](./phase-6-engine-resolution.md)
+
+## Phase Progress Log
+
+| Phase | Domain | Status | Review | Build | Committed |
+|-------|--------|--------|--------|-------|-----------|
+| Phase 1: Config & Flag | backend | ✅ Done | ✅ | ✅ | ⬜ |
+| Phase 2: Virtual Capture Engine | backend | ✅ Done | ✅ | ✅ | ⬜ |
+| Phase 3: Virtual Audio Engine | backend | ✅ Done | ✅ | ✅ | ⬜ |
+| Phase 4: Demo Device & Seed Data | backend | ✅ Done | ✅ | ✅ | ⬜ |
+| Phase 5: Frontend Demo UX | fullstack | ✅ Done | ✅ | ✅ | ⬜ |
+| Phase 6: Engine Resolution | backend | ✅ Done | ✅ | ✅ | ⬜ |
+
+## Final Review
+- [ ] Comprehensive code review
+- [ ] Full build passes
+- [ ] Full test suite passes
+- [ ] Merged to `master`

plans/demo-mode/phase-1-config-flag.md

@@ -0,0 +1,42 @@
+# Phase 1: Demo Mode Config & Flag
+
+**Status:** ⬜ Not Started
+**Parent plan:** [PLAN.md](./PLAN.md)
+**Domain:** backend
+
+## Objective
+Add a `demo` boolean flag to the application configuration and expose it to the frontend via the system info API. When demo mode is active, the server uses an isolated data directory so demo entities don't pollute real user data.
+
+## Tasks
+
+- [ ] Task 1: Add `demo: bool = False` field to `Config` class in `config.py`
+- [ ] Task 2: Add a module-level helper `is_demo_mode() -> bool` in `config.py` for easy import
+- [ ] Task 3: Modify `StorageConfig` path resolution: when `demo=True`, prefix all storage paths with `data/demo/` instead of `data/`
+- [ ] Task 4: Expose `demo_mode: bool` in the existing `GET /api/v1/system/info` endpoint response
+- [ ] Task 5: Add `WLED_DEMO=true` env var support (already handled by pydantic-settings env prefix `WLED_`)
+
+## Files to Modify/Create
+- `server/src/wled_controller/config.py` — Add `demo` field, `is_demo_mode()` helper, storage path override
+- `server/src/wled_controller/api/routes/system.py` — Add `demo_mode` to system info response
+- `server/src/wled_controller/api/schemas/system.py` — Add `demo_mode` field to response schema
+
+## Acceptance Criteria
+- `Config(demo=True)` is accepted; default is `False`
+- `WLED_DEMO=true` activates demo mode
+- `is_demo_mode()` returns the correct value
+- When demo mode is on, all storage files resolve under `data/demo/`
+- `GET /api/v1/system/info` includes `demo_mode: true/false`
+
+## Notes
+- The env var will be `WLED_DEMO` because of `env_prefix="WLED_"` in pydantic-settings
+- Storage path override should happen at `Config` construction time, not lazily
+
+## Review Checklist
+- [ ] All tasks completed
+- [ ] Code follows project conventions
+- [ ] No unintended side effects
+- [ ] Build passes
+- [ ] Tests pass (new + existing)
+
+## Handoff to Next Phase
+<!-- Filled in after completion -->

plans/demo-mode/phase-2-virtual-capture-engine.md

@@ -0,0 +1,48 @@
+# Phase 2: Virtual Capture Engine
+
+**Status:** ⬜ Not Started
+**Parent plan:** [PLAN.md](./PLAN.md)
+**Domain:** backend
+
+## Objective
+Create a `DemoCaptureEngine` that provides virtual displays and produces animated test pattern frames, allowing screen capture workflows to function in demo mode without real monitors.
+
+## Tasks
+
+- [ ] Task 1: Create `server/src/wled_controller/core/capture_engines/demo_engine.py` with `DemoCaptureEngine` and `DemoCaptureStream`
+- [ ] Task 2: `DemoCaptureEngine.ENGINE_TYPE = "demo"`, `ENGINE_PRIORITY = 1000` (highest in demo mode)
+- [ ] Task 3: `is_available()` returns `True` only when `is_demo_mode()` is True
+- [ ] Task 4: `get_available_displays()` returns 3 virtual displays:
+  - "Demo Display 1080p" (1920×1080)
+  - "Demo Ultrawide" (3440×1440)
+  - "Demo Portrait" (1080×1920)
+- [ ] Task 5: `DemoCaptureStream.capture_frame()` produces animated test patterns:
+  - Horizontally scrolling rainbow gradient (simple, visually clear)
+  - Uses `time.time()` for animation so frames change over time
+  - Returns proper `ScreenCapture` with RGB numpy array
+- [ ] Task 6: Register `DemoCaptureEngine` in `capture_engines/__init__.py`
+
+## Files to Modify/Create
+- `server/src/wled_controller/core/capture_engines/demo_engine.py` — New file: DemoCaptureEngine + DemoCaptureStream
+- `server/src/wled_controller/core/capture_engines/__init__.py` — Register DemoCaptureEngine
+
+## Acceptance Criteria
+- `DemoCaptureEngine.is_available()` is True only in demo mode
+- Virtual displays appear in the display list API when in demo mode
+- `capture_frame()` returns valid RGB frames that change over time
+- Engine is properly registered in EngineRegistry
+
+## Notes
+- Test patterns should be computationally cheap (no heavy image processing)
+- Use numpy operations for pattern generation (vectorized, fast)
+- Frame dimensions must match the virtual display dimensions
+
+## Review Checklist
+- [ ] All tasks completed
+- [ ] Code follows project conventions
+- [ ] No unintended side effects
+- [ ] Build passes
+- [ ] Tests pass (new + existing)
+
+## Handoff to Next Phase
+<!-- Filled in after completion -->

plans/demo-mode/phase-3-virtual-audio-engine.md

@@ -0,0 +1,47 @@
+# Phase 3: Virtual Audio Engine
+
+**Status:** ⬜ Not Started
+**Parent plan:** [PLAN.md](./PLAN.md)
+**Domain:** backend
+
+## Objective
+Create a `DemoAudioEngine` that provides virtual audio devices and produces synthetic audio data, enabling audio-reactive visualizations in demo mode.
+
+## Tasks
+
+- [ ] Task 1: Create `server/src/wled_controller/core/audio/demo_engine.py` with `DemoAudioEngine` and `DemoAudioCaptureStream`
+- [ ] Task 2: `DemoAudioEngine.ENGINE_TYPE = "demo"`, `ENGINE_PRIORITY = 1000`
+- [ ] Task 3: `is_available()` returns `True` only when `is_demo_mode()` is True
+- [ ] Task 4: `enumerate_devices()` returns 2 virtual devices:
+  - "Demo Microphone" (input, not loopback)
+  - "Demo System Audio" (loopback)
+- [ ] Task 5: `DemoAudioCaptureStream` implements:
+  - `channels = 2`, `sample_rate = 44100`, `chunk_size = 1024`
+  - `read_chunk()` produces synthetic audio: a mix of sine waves with slowly varying frequencies to simulate music-like beat patterns
+  - Returns proper float32 ndarray
+- [ ] Task 6: Register `DemoAudioEngine` in `audio/__init__.py`
+
+## Files to Modify/Create
+- `server/src/wled_controller/core/audio/demo_engine.py` — New file: DemoAudioEngine + DemoAudioCaptureStream
+- `server/src/wled_controller/core/audio/__init__.py` — Register DemoAudioEngine
+
+## Acceptance Criteria
+- `DemoAudioEngine.is_available()` is True only in demo mode
+- Virtual audio devices appear in audio device enumeration when in demo mode
+- `read_chunk()` returns valid float32 audio data that varies over time
+- Audio analyzer produces non-trivial frequency band data from the synthetic signal
+
+## Notes
+- Synthetic audio should produce interesting FFT results (multiple frequencies, amplitude modulation)
+- Keep it computationally lightweight
+- Must conform to `AudioCaptureStreamBase` interface exactly
+
+## Review Checklist
+- [ ] All tasks completed
+- [ ] Code follows project conventions
+- [ ] No unintended side effects
+- [ ] Build passes
+- [ ] Tests pass (new + existing)
+
+## Handoff to Next Phase
+<!-- Filled in after completion -->

plans/demo-mode/phase-4-demo-device-seed-data.md

@@ -0,0 +1,54 @@
+# Phase 4: Demo Device Provider & Seed Data
+
+**Status:** ⬜ Not Started
+**Parent plan:** [PLAN.md](./PLAN.md)
+**Domain:** backend
+
+## Objective
+Create a demo device provider that exposes discoverable virtual LED devices, and build a seed data generator that populates the demo data directory with sample entities on first run.
+
+## Tasks
+
+- [ ] Task 1: Create `server/src/wled_controller/core/devices/demo_provider.py` — `DemoDeviceProvider` extending `LEDDeviceProvider`:
+  - `device_type = "demo"`
+  - `capabilities = {"manual_led_count", "power_control", "brightness_control", "static_color"}`
+  - `create_client()` returns a `MockClient` (reuse existing)
+  - `discover()` returns 3 pre-defined virtual devices:
+    - "Demo LED Strip" (60 LEDs, ip="demo-strip")
+    - "Demo LED Matrix" (256 LEDs / 16×16, ip="demo-matrix")
+    - "Demo LED Ring" (24 LEDs, ip="demo-ring")
+  - `check_health()` always returns online with simulated ~2ms latency
+  - `validate_device()` returns `{"led_count": <from url>}`
+- [ ] Task 2: Register `DemoDeviceProvider` in `led_client.py` `_register_builtin_providers()`
+- [ ] Task 3: Create `server/src/wled_controller/core/demo_seed.py` — seed data generator:
+  - Function `seed_demo_data(storage_config: StorageConfig)` that checks if demo data dir is empty and populates it
+  - Seed entities: 3 devices (matching discover results), 2 output targets, 2 picture sources (using demo engine), 2 CSS sources (gradient + color_cycle), 1 audio source (using demo engine), 1 scene preset, 1 automation
+  - Use proper ID formats matching existing conventions (e.g., `dev_<hex>`, `tgt_<hex>`, etc.)
+- [ ] Task 4: Call `seed_demo_data()` during server startup in `main.py` when demo mode is active (before stores are loaded)
+
+## Files to Modify/Create
+- `server/src/wled_controller/core/devices/demo_provider.py` — New: DemoDeviceProvider
+- `server/src/wled_controller/core/devices/led_client.py` — Register DemoDeviceProvider
+- `server/src/wled_controller/core/demo_seed.py` — New: seed data generator
+- `server/src/wled_controller/main.py` — Call seed on demo startup
+
+## Acceptance Criteria
+- Demo devices appear in discovery results when in demo mode
+- Seed data populates `data/demo/` with valid JSON files on first demo run
+- Subsequent demo runs don't overwrite existing demo data
+- All seeded entities load correctly in stores
+
+## Notes
+- Seed data must match the exact schema expected by each store (look at existing JSON files for format)
+- Use the entity dataclass `to_dict()` / store patterns to generate valid data
+- Demo discovery should NOT appear when not in demo mode
+
+## Review Checklist
+- [ ] All tasks completed
+- [ ] Code follows project conventions
+- [ ] No unintended side effects
+- [ ] Build passes
+- [ ] Tests pass (new + existing)
+
+## Handoff to Next Phase
+<!-- Filled in after completion -->

plans/demo-mode/phase-5-frontend-demo-ux.md

@@ -0,0 +1,50 @@
+# Phase 5: Frontend Demo Indicator & Sandbox UX
+
+**Status:** ⬜ Not Started
+**Parent plan:** [PLAN.md](./PLAN.md)
+**Domain:** fullstack
+
+## Objective
+Add visual indicators in the frontend that clearly communicate demo mode status to the user, including a badge, dismissible banner, and engine labeling.
+
+## Tasks
+
+- [ ] Task 1: Add `demo_mode` field to system info API response schema (if not already done in Phase 1)
+- [ ] Task 2: In frontend initialization (`app.ts` or `state.ts`), fetch system info and store `demoMode` in app state
+- [ ] Task 3: Add `<span class="demo-badge" id="demo-badge" style="display:none">DEMO</span>` next to app title in `index.html` header
+- [ ] Task 4: CSS for `.demo-badge`: amber/yellow pill shape, subtle pulse animation, clearly visible but not distracting
+- [ ] Task 5: On app load, if `demoMode` is true: show badge, set `document.body.dataset.demo = 'true'`
+- [ ] Task 6: Add a dismissible demo banner at the top of the page: "You're in demo mode — all devices and data are virtual. No real hardware is used." with a dismiss (×) button. Store dismissal in localStorage.
+- [ ] Task 7: Add i18n keys for demo badge and banner text in `en.json`, `ru.json`, `zh.json`
+- [ ] Task 8: In engine/display dropdowns, demo engines should display with "Demo: " prefix for clarity
+
+## Files to Modify/Create
+- `server/src/wled_controller/templates/index.html` — Demo badge + banner HTML
+- `server/src/wled_controller/static/css/app.css` — Demo badge + banner styles
+- `server/src/wled_controller/static/js/app.ts` — Demo mode detection and UI toggle
+- `server/src/wled_controller/static/js/core/state.ts` — Store demo mode flag
+- `server/src/wled_controller/static/locales/en.json` — i18n keys
+- `server/src/wled_controller/static/locales/ru.json` — i18n keys
+- `server/src/wled_controller/static/locales/zh.json` — i18n keys
+
+## Acceptance Criteria
+- Demo badge visible next to "LED Grab" title when in demo mode
+- Demo badge hidden when not in demo mode
+- Banner appears on first demo visit, can be dismissed, stays dismissed across refreshes
+- Engine dropdowns clearly label demo engines
+- All text is localized
+
+## Notes
+- Badge should use `--warning-color` or a custom amber for the pill
+- Banner should be a thin strip, not intrusive
+- `localStorage` key: `demo-banner-dismissed`
+
+## Review Checklist
+- [ ] All tasks completed
+- [ ] Code follows project conventions
+- [ ] No unintended side effects
+- [ ] Build passes
+- [ ] Tests pass (new + existing)
+
+## Handoff to Next Phase
+<!-- Filled in after completion -->

plans/demo-mode/phase-6-engine-resolution.md

@@ -0,0 +1,46 @@
+# Phase 6: Demo-only Engine Resolution
+
+**Status:** ⬜ Not Started
+**Parent plan:** [PLAN.md](./PLAN.md)
+**Domain:** backend
+
+## Objective
+Ensure demo engines are the primary/preferred engines in demo mode, and are hidden when not in demo mode. This makes demo mode act as a "virtual platform" where only demo engines resolve.
+
+## Tasks
+
+- [ ] Task 1: Modify `EngineRegistry.get_available_engines()` to filter out engines with `ENGINE_TYPE == "demo"` when not in demo mode (they report `is_available()=False` anyway, but belt-and-suspenders)
+- [ ] Task 2: Modify `AudioEngineRegistry.get_available_engines()` similarly
+- [ ] Task 3: In demo mode, `get_best_available_engine()` should return the demo engine (already handled by priority=1000, but verify)
+- [ ] Task 4: Modify the `GET /api/v1/config/displays` endpoint: in demo mode, default to demo engine displays if no engine_type specified
+- [ ] Task 5: Modify the audio engine listing endpoint similarly
+- [ ] Task 6: Ensure `DemoDeviceProvider.discover()` only returns devices when in demo mode
+- [ ] Task 7: End-to-end verification: start server in demo mode, verify only demo engines/devices appear in API responses
+
+## Files to Modify/Create
+- `server/src/wled_controller/core/capture_engines/factory.py` — Filter demo engines
+- `server/src/wled_controller/core/audio/factory.py` — Filter demo engines
+- `server/src/wled_controller/api/routes/system.py` — Display endpoint defaults
+- `server/src/wled_controller/api/routes/audio_templates.py` — Audio engine listing
+- `server/src/wled_controller/core/devices/demo_provider.py` — Guard discover()
+
+## Acceptance Criteria
+- In demo mode: demo engines are primary, real engines may also be listed but demo is default
+- Not in demo mode: demo engines are completely hidden from all API responses
+- Display list defaults to demo displays in demo mode
+- Audio device list defaults to demo devices in demo mode
+
+## Notes
+- This is the "demo OS identifier" concept — demo mode acts as a virtual platform
+- Be careful not to break existing behavior when demo=False (default)
+- The demo engines already have `is_available() = is_demo_mode()`, so the main concern is UI defaults
+
+## Review Checklist
+- [ ] All tasks completed
+- [ ] Code follows project conventions
+- [ ] No unintended side effects
+- [ ] Build passes
+- [ ] Tests pass (new + existing)
+
+## Handoff to Next Phase
+<!-- Filled in after completion -->

server/CLAUDE.md

@@ -54,7 +54,7 @@ netstat -an | grep 8080
 - **Permission errors**: Ensure file permissions allow Python to execute
 
 #### Files that DON'T require restart:
-- Static files (`static/*.html`, `static/*.css`, `static/*.js`) - these are served directly
+- Static files (`static/*.html`, `static/*.css`, `static/*.js`) - but you **MUST rebuild the bundle** after changes: `cd server && npm run build`
 - Locale files (`static/locales/*.json`) - loaded by frontend
 - Documentation files (`*.md`)
 - Configuration files in `config/` if server supports hot-reload (check implementation)
@@ -130,6 +130,31 @@ After restarting the server with new code:
 
 ## Frontend UI Patterns
 
+### Entity Cards
+
+All entity cards (devices, targets, CSS sources, streams, scenes, automations, etc.) **must support clone functionality**. Clone buttons use the `ICON_CLONE` (📋) icon in `.card-actions`.
+
+**Clone pattern**: Clone must open the entity's add/create modal with fields prefilled from the cloned item. It must **never** silently create a duplicate — the user should review and confirm.
+
+Implementation:
+
+1. Export a `cloneMyEntity(id)` function that fetches (or finds in cache) the entity data
+2. Call the add/create modal function, passing the entity data as `cloneData`
+3. In the modal opener, detect clone mode (no ID + cloneData present) and prefill all fields
+4. Append `' (Copy)'` to the name
+5. Set the modal title to the "add" variant (not "edit")
+6. The save action creates a new entity (POST), not an update (PUT)
+
+```javascript
+export async function cloneMyEntity(id) {
+    const entity = myCache.data.find(e => e.id === id);
+    if (!entity) return;
+    showMyEditor(null, entity);  // null id = create mode, entity = cloneData
+}
+```
+
+Register the clone function in `app.js` window exports so inline `onclick` handlers can call it.
+
 ### Modal Dialogs
 
 **IMPORTANT**: All modal dialogs must follow these standards for consistent UX:

server/Dockerfile

@@ -18,7 +18,7 @@ RUN apt-get update && apt-get install -y \
 COPY pyproject.toml .
 COPY src/ ./src/
 COPY config/ ./config/
-RUN pip install --no-cache-dir .
+RUN pip install --no-cache-dir ".[notifications]"
 
 # Create directories for data and logs
 RUN mkdir -p /app/data /app/logs

server/config/default_config.yaml

@@ -12,25 +12,22 @@ auth:
     # Generate secure keys: openssl rand -hex 32
     dev: "development-key-change-in-production"  # Development key - CHANGE THIS!
 
-processing:
-  default_fps: 30
-  max_fps: 60
-  min_fps: 1
-  border_width: 10  # pixels to sample from screen edge
-  interpolation_mode: "average"  # average, median, dominant
-
-screen_capture:
-  buffer_size: 2  # Number of frames to buffer
-
-wled:
-  timeout: 5  # seconds
-  retry_attempts: 3
-  retry_delay: 1  # seconds
-  protocol: "http"  # http or https
-  max_brightness: 255
-
 storage:
   devices_file: "data/devices.json"
+  templates_file: "data/capture_templates.json"
+  postprocessing_templates_file: "data/postprocessing_templates.json"
+  picture_sources_file: "data/picture_sources.json"
+  output_targets_file: "data/output_targets.json"
+  pattern_templates_file: "data/pattern_templates.json"
+
+mqtt:
+  enabled: false
+  broker_host: "localhost"
+  broker_port: 1883
+  username: ""
+  password: ""
+  client_id: "ledgrab"
+  base_topic: "ledgrab"
 
 logging:
   format: "json"  # json or text

server/config/demo_config.yaml

@@ -0,0 +1,34 @@
+# Demo mode configuration
+# Loaded automatically when WLED_DEMO=true is set.
+# Uses isolated data directory (data/demo/) and a pre-configured API key
+# so the demo works out of the box with zero setup.
+
+demo: true
+
+server:
+  host: "0.0.0.0"
+  port: 8081
+  log_level: "INFO"
+  cors_origins:
+    - "*"
+
+auth:
+  api_keys:
+    demo: "demo"
+
+storage:
+  devices_file: "data/devices.json"
+  templates_file: "data/capture_templates.json"
+  postprocessing_templates_file: "data/postprocessing_templates.json"
+  picture_sources_file: "data/picture_sources.json"
+  output_targets_file: "data/output_targets.json"
+  pattern_templates_file: "data/pattern_templates.json"
+
+mqtt:
+  enabled: false
+
+logging:
+  format: "text"
+  file: "logs/wled_controller.log"
+  max_size_mb: 100
+  backup_count: 5

server/config/test_config.yaml

@@ -1,7 +1,7 @@
 server:
-  host: "0.0.0.0"  # Listen on all interfaces (accessible from local network)
+  host: "0.0.0.0"
   port: 8080
-  log_level: "DEBUG"  # Verbose logging for testing
+  log_level: "DEBUG"
   cors_origins:
     - "*"
 
@@ -10,28 +10,16 @@ auth:
   api_keys:
     test_client: "eb8a89cfd33ab067751fd0e38f74ddf7ac3d75ff012fbab35a616c45c12e0c8d"
 
-processing:
-  default_fps: 30
-  max_fps: 60
-  min_fps: 1
-  border_width: 10
-  interpolation_mode: "average"
-
-screen_capture:
-  buffer_size: 2
-
-wled:
-  timeout: 5
-  retry_attempts: 3
-  retry_delay: 1
-  protocol: "http"
-  max_brightness: 255
-
 storage:
   devices_file: "data/test_devices.json"
+  templates_file: "data/capture_templates.json"
+  postprocessing_templates_file: "data/postprocessing_templates.json"
+  picture_sources_file: "data/picture_sources.json"
+  output_targets_file: "data/output_targets.json"
+  pattern_templates_file: "data/pattern_templates.json"
 
 logging:
-  format: "text"  # Easier to read during testing
+  format: "text"
   file: "logs/wled_test.log"
   max_size_mb: 10
   backup_count: 2

server/esbuild.mjs

@@ -0,0 +1,43 @@
+import * as esbuild from 'esbuild';
+
+const srcDir = 'src/wled_controller/static';
+const outDir = `${srcDir}/dist`;
+
+const watch = process.argv.includes('--watch');
+
+/** @type {esbuild.BuildOptions} */
+const jsOpts = {
+    entryPoints: [`${srcDir}/js/app.ts`],
+    bundle: true,
+    format: 'iife',
+    outfile: `${outDir}/app.bundle.js`,
+    minify: true,
+    sourcemap: true,
+    target: ['es2020'],
+    logLevel: 'info',
+};
+
+/** @type {esbuild.BuildOptions} */
+const cssOpts = {
+    entryPoints: [`${srcDir}/css/all.css`],
+    bundle: true,
+    outdir: outDir,
+    outbase: `${srcDir}/css`,
+    minify: true,
+    sourcemap: true,
+    logLevel: 'info',
+    loader: { '.woff2': 'file' },
+    assetNames: '[name]',
+    entryNames: 'app.bundle',
+};
+
+if (watch) {
+    const jsCtx = await esbuild.context(jsOpts);
+    const cssCtx = await esbuild.context(cssOpts);
+    await jsCtx.watch();
+    await cssCtx.watch();
+    console.log('Watching for changes...');
+} else {
+    await esbuild.build(jsOpts);
+    await esbuild.build(cssOpts);
+}

server/package-lock.json

@@ -0,0 +1,754 @@
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+  "name": "server",
+  "version": "1.0.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "server",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "chart.js": "^4.5.1",
+        "elkjs": "^0.11.1"
+      },
+      "devDependencies": {
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+        "typescript": "^5.9.3"
+      }
+    },
+    "node_modules/@esbuild/aix-ppc64": {
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+      "cpu": [
+        "ppc64"
+      ],
+      "dev": true,
+      "optional": true,
+      "os": [
+        "aix"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/android-arm": {
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+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.27.4.tgz",
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+        "arm"
+      ],
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+      "optional": true,
+      "os": [
+        "android"
+      ],
+      "engines": {
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+      }
+    },
+    "node_modules/@esbuild/android-arm64": {
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+    "node_modules/@esbuild/android-x64": {
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+    "node_modules/@esbuild/darwin-x64": {
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+        "@esbuild/linux-riscv64": "0.27.4",
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+        "@esbuild/openharmony-arm64": "0.27.4",
+        "@esbuild/sunos-x64": "0.27.4",
+        "@esbuild/win32-arm64": "0.27.4",
+        "@esbuild/win32-ia32": "0.27.4",
+        "@esbuild/win32-x64": "0.27.4"
+      }
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+    "typescript": {
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+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
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+      "dev": true
+    }
+  }
+}

server/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "server",
+  "version": "1.0.0",
+  "description": "High-performance FastAPI server that captures screen content and controls WLED devices for ambient lighting.",
+  "main": "index.js",
+  "directories": {
+    "doc": "docs",
+    "test": "tests"
+  },
+  "scripts": {
+    "build": "node esbuild.mjs",
+    "watch": "node esbuild.mjs --watch",
+    "typecheck": "tsc --noEmit"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "esbuild": "^0.27.4",
+    "typescript": "^5.9.3"
+  },
+  "dependencies": {
+    "chart.js": "^4.5.1",
+    "elkjs": "^0.11.1"
+  }
+}

server/pyproject.toml

@@ -36,7 +36,16 @@ dependencies = [
     "python-json-logger>=3.1.0",
     "python-dateutil>=2.9.0",
     "python-multipart>=0.0.12",
+    "jinja2>=3.1.0",
     "wmi>=1.5.1; sys_platform == 'win32'",
+    "zeroconf>=0.131.0",
+    "pyserial>=3.5",
+    "psutil>=5.9.0",
+    "nvidia-ml-py>=12.0.0",
+    "PyAudioWPatch>=0.2.12; sys_platform == 'win32'",
+    "sounddevice>=0.5",
+    "aiomqtt>=2.0.0",
+    "openrgb-python>=0.2.15",
 ]
 
 [project.optional-dependencies]
@@ -48,9 +57,18 @@ dev = [
     "black>=24.0.0",
     "ruff>=0.6.0",
 ]
+camera = [
+    "opencv-python-headless>=4.8.0",
+]
+# OS notification capture
+notifications = [
+    "winsdk>=1.0.0b10; sys_platform == 'win32'",
+    "dbus-next>=0.2.3; sys_platform == 'linux'",
+]
 # High-performance screen capture engines (Windows only)
 perf = [
     "dxcam>=0.0.5; sys_platform == 'win32'",
+    "bettercam>=1.0.0; sys_platform == 'win32'",
     "windows-capture>=1.5.0; sys_platform == 'win32'",
 ]
 

server/restart.ps1

@@ -0,0 +1,37 @@
+# Restart the WLED Screen Controller server
+# Stop any running instance
+$procs = Get-CimInstance Win32_Process -Filter "Name='python.exe'" |
+    Where-Object { $_.CommandLine -like '*wled_controller.main*' }
+foreach ($p in $procs) {
+    Write-Host "Stopping server (PID $($p.ProcessId))..."
+    Stop-Process -Id $p.ProcessId -Force -ErrorAction SilentlyContinue
+}
+if ($procs) { Start-Sleep -Seconds 2 }
+
+# Merge registry PATH with current PATH so newly-installed tools (e.g. scrcpy) are visible
+$regUser = [Environment]::GetEnvironmentVariable('PATH', 'User')
+if ($regUser) {
+    $currentDirs = $env:PATH -split ';' | ForEach-Object { $_.TrimEnd('\') }
+    foreach ($dir in ($regUser -split ';')) {
+        if ($dir -and ($currentDirs -notcontains $dir.TrimEnd('\'))) {
+            $env:PATH = "$env:PATH;$dir"
+        }
+    }
+}
+
+# Start server detached
+Write-Host "Starting server..."
+Start-Process -FilePath python -ArgumentList '-m', 'wled_controller.main' `
+    -WorkingDirectory 'c:\Users\Alexei\Documents\wled-screen-controller\server' `
+    -WindowStyle Hidden
+
+Start-Sleep -Seconds 3
+
+# Verify it's running
+$check = Get-CimInstance Win32_Process -Filter "Name='python.exe'" |
+    Where-Object { $_.CommandLine -like '*wled_controller.main*' }
+if ($check) {
+    Write-Host "Server started (PID $($check[0].ProcessId))"
+} else {
+    Write-Host "WARNING: Server does not appear to be running!"
+}

server/restart.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Restart the WLED Screen Controller server (Linux/macOS)
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+# Stop any running instance
+PIDS=$(pgrep -f 'wled_controller\.main' 2>/dev/null || true)
+if [ -n "$PIDS" ]; then
+    echo "Stopping server (PID $PIDS)..."
+    pkill -f 'wled_controller\.main' 2>/dev/null || true
+    sleep 2
+fi
+
+# Start server detached
+echo "Starting server..."
+cd "$SCRIPT_DIR"
+nohup python -m wled_controller.main > /dev/null 2>&1 &
+sleep 3
+
+# Verify it's running
+NEW_PID=$(pgrep -f 'wled_controller\.main' 2>/dev/null || true)
+if [ -n "$NEW_PID" ]; then
+    echo "Server started (PID $NEW_PID)"
+else
+    echo "WARNING: Server does not appear to be running!"
+fi

server/src/wled_controller/__init__.py

@@ -1,4 +1,4 @@
-"""WLED Screen Controller - Ambient lighting based on screen content."""
+"""LED Grab - Ambient lighting based on screen content."""
 
 __version__ = "0.1.0"
 __author__ = "Alexei Dolgolyov"

server/src/wled_controller/api/__init__.py

@@ -1,5 +1,42 @@
 """API routes and schemas."""
 
-from .routes import router
+from fastapi import APIRouter
+
+from .routes.system import router as system_router
+from .routes.devices import router as devices_router
+from .routes.templates import router as templates_router
+from .routes.postprocessing import router as postprocessing_router
+from .routes.picture_sources import router as picture_sources_router
+from .routes.pattern_templates import router as pattern_templates_router
+from .routes.output_targets import router as output_targets_router
+from .routes.color_strip_sources import router as color_strip_sources_router
+from .routes.audio import router as audio_router
+from .routes.audio_sources import router as audio_sources_router
+from .routes.audio_templates import router as audio_templates_router
+from .routes.value_sources import router as value_sources_router
+from .routes.automations import router as automations_router
+from .routes.scene_presets import router as scene_presets_router
+from .routes.webhooks import router as webhooks_router
+from .routes.sync_clocks import router as sync_clocks_router
+from .routes.color_strip_processing import router as cspt_router
+
+router = APIRouter()
+router.include_router(system_router)
+router.include_router(devices_router)
+router.include_router(templates_router)
+router.include_router(postprocessing_router)
+router.include_router(pattern_templates_router)
+router.include_router(picture_sources_router)
+router.include_router(color_strip_sources_router)
+router.include_router(audio_router)
+router.include_router(audio_sources_router)
+router.include_router(audio_templates_router)
+router.include_router(value_sources_router)
+router.include_router(output_targets_router)
+router.include_router(automations_router)
+router.include_router(scene_presets_router)
+router.include_router(webhooks_router)
+router.include_router(sync_clocks_router)
+router.include_router(cspt_router)
 
 __all__ = ["router"]

server/src/wled_controller/api/auth.py

@@ -59,7 +59,7 @@ def verify_api_key(
             break
 
     if not authenticated_as:
-        logger.warning(f"Invalid API key attempt: {token[:8]}...")
+        logger.warning("Invalid API key attempt")
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
             detail="Invalid API key",
@@ -75,3 +75,16 @@ def verify_api_key(
 # Dependency for protected routes
 # Returns the label/identifier of the authenticated client
 AuthRequired = Annotated[str, Depends(verify_api_key)]
+
+
+def verify_ws_token(token: str) -> bool:
+    """Check a WebSocket query-param token against configured API keys.
+
+    Use this for WebSocket endpoints where FastAPI's Depends() isn't available.
+    """
+    config = get_config()
+    if token and config.auth.api_keys:
+        for _label, api_key in config.auth.api_keys.items():
+            if secrets.compare_digest(token, api_key):
+                return True
+    return False

server/src/wled_controller/api/dependencies.py

@@ -0,0 +1,181 @@
+"""Dependency injection for API routes.
+
+Uses a registry dict instead of individual module-level globals.
+All getter function signatures remain unchanged for FastAPI Depends() compatibility.
+"""
+
+from typing import Any, Dict, Type, TypeVar
+
+from wled_controller.core.processing.processor_manager import ProcessorManager
+from wled_controller.storage import DeviceStore
+from wled_controller.storage.template_store import TemplateStore
+from wled_controller.storage.postprocessing_template_store import PostprocessingTemplateStore
+from wled_controller.storage.pattern_template_store import PatternTemplateStore
+from wled_controller.storage.picture_source_store import PictureSourceStore
+from wled_controller.storage.output_target_store import OutputTargetStore
+from wled_controller.storage.color_strip_store import ColorStripStore
+from wled_controller.storage.audio_source_store import AudioSourceStore
+from wled_controller.storage.audio_template_store import AudioTemplateStore
+from wled_controller.storage.value_source_store import ValueSourceStore
+from wled_controller.storage.automation_store import AutomationStore
+from wled_controller.storage.scene_preset_store import ScenePresetStore
+from wled_controller.storage.sync_clock_store import SyncClockStore
+from wled_controller.storage.color_strip_processing_template_store import ColorStripProcessingTemplateStore
+from wled_controller.core.automations.automation_engine import AutomationEngine
+from wled_controller.core.backup.auto_backup import AutoBackupEngine
+from wled_controller.core.processing.sync_clock_manager import SyncClockManager
+
+T = TypeVar("T")
+
+# Central dependency registry — keyed by type or string label
+_deps: Dict[str, Any] = {}
+
+
+def _get(key: str, label: str) -> Any:
+    """Get a dependency by key, raising RuntimeError if not initialized."""
+    dep = _deps.get(key)
+    if dep is None:
+        raise RuntimeError(f"{label} not initialized")
+    return dep
+
+
+# ── Typed getters (unchanged signatures for FastAPI Depends()) ──────────
+
+
+def get_device_store() -> DeviceStore:
+    return _get("device_store", "Device store")
+
+
+def get_template_store() -> TemplateStore:
+    return _get("template_store", "Template store")
+
+
+def get_pp_template_store() -> PostprocessingTemplateStore:
+    return _get("pp_template_store", "Postprocessing template store")
+
+
+def get_pattern_template_store() -> PatternTemplateStore:
+    return _get("pattern_template_store", "Pattern template store")
+
+
+def get_picture_source_store() -> PictureSourceStore:
+    return _get("picture_source_store", "Picture source store")
+
+
+def get_output_target_store() -> OutputTargetStore:
+    return _get("output_target_store", "Output target store")
+
+
+def get_color_strip_store() -> ColorStripStore:
+    return _get("color_strip_store", "Color strip store")
+
+
+def get_audio_source_store() -> AudioSourceStore:
+    return _get("audio_source_store", "Audio source store")
+
+
+def get_audio_template_store() -> AudioTemplateStore:
+    return _get("audio_template_store", "Audio template store")
+
+
+def get_value_source_store() -> ValueSourceStore:
+    return _get("value_source_store", "Value source store")
+
+
+def get_processor_manager() -> ProcessorManager:
+    return _get("processor_manager", "Processor manager")
+
+
+def get_automation_store() -> AutomationStore:
+    return _get("automation_store", "Automation store")
+
+
+def get_scene_preset_store() -> ScenePresetStore:
+    return _get("scene_preset_store", "Scene preset store")
+
+
+def get_automation_engine() -> AutomationEngine:
+    return _get("automation_engine", "Automation engine")
+
+
+def get_auto_backup_engine() -> AutoBackupEngine:
+    return _get("auto_backup_engine", "Auto-backup engine")
+
+
+def get_sync_clock_store() -> SyncClockStore:
+    return _get("sync_clock_store", "Sync clock store")
+
+
+def get_sync_clock_manager() -> SyncClockManager:
+    return _get("sync_clock_manager", "Sync clock manager")
+
+
+def get_cspt_store() -> ColorStripProcessingTemplateStore:
+    return _get("cspt_store", "Color strip processing template store")
+
+
+# ── Event helper ────────────────────────────────────────────────────────
+
+
+def fire_entity_event(entity_type: str, action: str, entity_id: str) -> None:
+    """Fire an entity_changed event via the ProcessorManager event bus.
+
+    Args:
+        entity_type: e.g. "device", "output_target", "color_strip_source"
+        action: "created", "updated", or "deleted"
+        entity_id: The entity's unique ID
+    """
+    pm = _deps.get("processor_manager")
+    if pm is not None:
+        pm.fire_event({
+            "type": "entity_changed",
+            "entity_type": entity_type,
+            "action": action,
+            "id": entity_id,
+        })
+
+
+# ── Initialization ──────────────────────────────────────────────────────
+
+
+def init_dependencies(
+    device_store: DeviceStore,
+    template_store: TemplateStore,
+    processor_manager: ProcessorManager,
+    pp_template_store: PostprocessingTemplateStore | None = None,
+    pattern_template_store: PatternTemplateStore | None = None,
+    picture_source_store: PictureSourceStore | None = None,
+    output_target_store: OutputTargetStore | None = None,
+    color_strip_store: ColorStripStore | None = None,
+    audio_source_store: AudioSourceStore | None = None,
+    audio_template_store: AudioTemplateStore | None = None,
+    value_source_store: ValueSourceStore | None = None,
+    automation_store: AutomationStore | None = None,
+    scene_preset_store: ScenePresetStore | None = None,
+    automation_engine: AutomationEngine | None = None,
+    auto_backup_engine: AutoBackupEngine | None = None,
+    sync_clock_store: SyncClockStore | None = None,
+    sync_clock_manager: SyncClockManager | None = None,
+    cspt_store: ColorStripProcessingTemplateStore | None = None,
+):
+    """Initialize global dependencies."""
+    _deps.update({
+        "device_store": device_store,
+        "template_store": template_store,
+        "processor_manager": processor_manager,
+        "pp_template_store": pp_template_store,
+        "pattern_template_store": pattern_template_store,
+        "picture_source_store": picture_source_store,
+        "output_target_store": output_target_store,
+        "color_strip_store": color_strip_store,
+        "audio_source_store": audio_source_store,
+        "audio_template_store": audio_template_store,
+        "value_source_store": value_source_store,
+        "automation_store": automation_store,
+        "scene_preset_store": scene_preset_store,
+        "automation_engine": automation_engine,
+        "auto_backup_engine": auto_backup_engine,
+        "sync_clock_store": sync_clock_store,
+        "sync_clock_manager": sync_clock_manager,
+        "cspt_store": cspt_store,
+    })

server/src/wled_controller/api/routes/__init__.py

@@ -0,0 +1 @@
+"""API route modules."""

server/src/wled_controller/api/routes/_test_helpers.py

@@ -0,0 +1,230 @@
+"""Shared helpers for WebSocket-based capture test endpoints."""
+
+import asyncio
+import base64
+import io
+import secrets
+import threading
+import time
+from typing import Callable, List, Optional
+
+import numpy as np
+from PIL import Image
+from starlette.websockets import WebSocket
+
+from wled_controller.config import get_config
+from wled_controller.core.filters import FilterRegistry, ImagePool
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+
+PREVIEW_INTERVAL = 0.1  # seconds between intermediate thumbnail sends
+PREVIEW_MAX_WIDTH = 640  # px for intermediate thumbnails
+FINAL_THUMBNAIL_WIDTH = 640  # px for the final thumbnail
+FINAL_JPEG_QUALITY = 90
+PREVIEW_JPEG_QUALITY = 70
+
+
+def authenticate_ws_token(token: str) -> bool:
+    """Check a WebSocket query-param token against configured API keys.
+
+    Delegates to the canonical implementation in auth module.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    return verify_ws_token(token)
+
+
+def _encode_jpeg(pil_image: Image.Image, quality: int = 85) -> str:
+    """Encode a PIL image as a JPEG base64 data URI."""
+    buf = io.BytesIO()
+    pil_image.save(buf, format="JPEG", quality=quality)
+    buf.seek(0)
+    b64 = base64.b64encode(buf.getvalue()).decode("utf-8")
+    return f"data:image/jpeg;base64,{b64}"
+
+
+def encode_preview_frame(image: np.ndarray, max_width: int = None, quality: int = 80) -> bytes:
+    """Encode a numpy RGB image to JPEG bytes, optionally downscaling."""
+    import cv2
+    if max_width and image.shape[1] > max_width:
+        scale = max_width / image.shape[1]
+        new_h = int(image.shape[0] * scale)
+        image = cv2.resize(image, (max_width, new_h), interpolation=cv2.INTER_AREA)
+    # RGB → BGR for OpenCV JPEG encoding
+    bgr = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)
+    _, buf = cv2.imencode('.jpg', bgr, [cv2.IMWRITE_JPEG_QUALITY, quality])
+    return buf.tobytes()
+
+
+def _make_thumbnail(pil_image: Image.Image, max_width: int) -> Image.Image:
+    """Create a thumbnail copy of the image, preserving aspect ratio."""
+    thumb = pil_image.copy()
+    aspect = pil_image.height / pil_image.width
+    thumb.thumbnail((max_width, int(max_width * aspect)), Image.Resampling.LANCZOS)
+    return thumb
+
+
+def _apply_pp_filters(pil_image: Image.Image, flat_filters: list) -> Image.Image:
+    """Apply postprocessing filter instances to a PIL image."""
+    if not flat_filters:
+        return pil_image
+    pool = ImagePool()
+    arr = np.array(pil_image)
+    for fi in flat_filters:
+        f = FilterRegistry.create_instance(fi.filter_id, fi.options)
+        result = f.process_image(arr, pool)
+        if result is not None:
+            arr = result
+    return Image.fromarray(arr)
+
+
+async def stream_capture_test(
+    websocket: WebSocket,
+    engine_factory: Callable,
+    duration: float,
+    pp_filters: Optional[list] = None,
+    preview_width: Optional[int] = None,
+) -> None:
+    """Run a capture test, streaming intermediate thumbnails and a final full-res frame.
+
+    The engine is created and used entirely within a background thread to avoid
+    thread-affinity issues (e.g. MSS uses thread-local state).
+
+    Args:
+        websocket: Accepted WebSocket connection.
+        engine_factory: Zero-arg callable that returns an initialized engine stream
+            (with .capture_frame() and .cleanup() methods). Called inside the
+            capture thread so thread-local resources work correctly.
+        duration: Test duration in seconds.
+        pp_filters: Optional list of resolved filter instances to apply to frames.
+    """
+    thumb_width = preview_width or PREVIEW_MAX_WIDTH
+
+    # Shared state between capture thread and async loop
+    latest_frame = None  # PIL Image (converted from numpy)
+    frame_count = 0
+    total_capture_time = 0.0
+    stop_event = threading.Event()
+    done_event = threading.Event()
+    init_error = None  # set if engine_factory fails
+
+    def _capture_loop():
+        nonlocal latest_frame, frame_count, total_capture_time, init_error
+        stream = None
+        try:
+            stream = engine_factory()
+            start = time.perf_counter()
+            end = start + duration
+            while time.perf_counter() < end and not stop_event.is_set():
+                t0 = time.perf_counter()
+                capture = stream.capture_frame()
+                t1 = time.perf_counter()
+                if capture is None:
+                    time.sleep(0.005)
+                    continue
+                total_capture_time += t1 - t0
+                frame_count += 1
+                # Convert numpy → PIL once in the capture thread
+                if isinstance(capture.image, np.ndarray):
+                    latest_frame = Image.fromarray(capture.image)
+                else:
+                    latest_frame = capture.image
+        except Exception as e:
+            init_error = str(e)
+            logger.error(f"Capture thread error: {e}")
+        finally:
+            if stream:
+                try:
+                    stream.cleanup()
+                except Exception:
+                    pass
+            done_event.set()
+
+    # Start capture in background thread
+    loop = asyncio.get_running_loop()
+    capture_future = loop.run_in_executor(None, _capture_loop)
+
+    start_time = time.perf_counter()
+    last_sent_frame = None
+
+    try:
+        # Stream intermediate previews
+        while not done_event.is_set():
+            await asyncio.sleep(PREVIEW_INTERVAL)
+
+            # Check for init error
+            if init_error:
+                stop_event.set()
+                await capture_future
+                await websocket.send_json({"type": "error", "detail": init_error})
+                return
+
+            frame = latest_frame
+            if frame is not None and frame is not last_sent_frame:
+                last_sent_frame = frame
+                elapsed = time.perf_counter() - start_time
+                fc = frame_count
+                tc = total_capture_time
+                # Encode preview thumbnail (small + fast)
+                thumb = _make_thumbnail(frame, thumb_width)
+                if pp_filters:
+                    thumb = _apply_pp_filters(thumb, pp_filters)
+                thumb_uri = _encode_jpeg(thumb, PREVIEW_JPEG_QUALITY)
+                fps = fc / elapsed if elapsed > 0 else 0
+                avg_ms = (tc / fc * 1000) if fc > 0 else 0
+                await websocket.send_json({
+                    "type": "frame",
+                    "thumbnail": thumb_uri,
+                    "frame_count": fc,
+                    "elapsed_s": round(elapsed, 2),
+                    "fps": round(fps, 1),
+                    "avg_capture_ms": round(avg_ms, 1),
+                })
+
+        # Wait for capture thread to fully finish
+        await capture_future
+
+        # Check for errors
+        if init_error:
+            await websocket.send_json({"type": "error", "detail": init_error})
+            return
+
+        # Send final result
+        final_frame = latest_frame
+        if final_frame is None:
+            await websocket.send_json({"type": "error", "detail": "No frames captured"})
+            return
+
+        elapsed = time.perf_counter() - start_time
+        fc = frame_count
+        tc = total_capture_time
+        fps = fc / elapsed if elapsed > 0 else 0
+        avg_ms = (tc / fc * 1000) if fc > 0 else 0
+
+        # Apply PP filters to final images
+        if pp_filters:
+            final_frame = _apply_pp_filters(final_frame, pp_filters)
+
+        w, h = final_frame.size
+
+        full_uri = _encode_jpeg(final_frame, FINAL_JPEG_QUALITY)
+        thumb = _make_thumbnail(final_frame, FINAL_THUMBNAIL_WIDTH)
+        thumb_uri = _encode_jpeg(thumb, 85)
+
+        await websocket.send_json({
+            "type": "result",
+            "full_image": full_uri,
+            "thumbnail": thumb_uri,
+            "width": w,
+            "height": h,
+            "frame_count": fc,
+            "elapsed_s": round(elapsed, 2),
+            "fps": round(fps, 1),
+            "avg_capture_ms": round(avg_ms, 1),
+        })
+
+    except Exception:
+        # WebSocket disconnect or send error — signal capture thread to stop
+        stop_event.set()
+        await capture_future
+        raise

server/src/wled_controller/api/routes/audio.py

@@ -0,0 +1,34 @@
+"""Audio device routes: enumerate available audio devices."""
+
+import asyncio
+
+from fastapi import APIRouter
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.core.audio.audio_capture import AudioCaptureManager
+
+router = APIRouter()
+
+
+@router.get("/api/v1/audio-devices", tags=["Audio"])
+async def list_audio_devices(_auth: AuthRequired):
+    """List available audio input/output devices for audio-reactive sources.
+
+    Returns a deduped flat list (backward compat) plus a ``by_engine`` dict
+    with per-engine device lists (no cross-engine dedup) so the frontend can
+    filter by the selected audio template's engine type.
+    """
+    try:
+        devices, by_engine = await asyncio.to_thread(
+            lambda: (
+                AudioCaptureManager.enumerate_devices(),
+                AudioCaptureManager.enumerate_devices_by_engine(),
+            )
+        )
+        return {
+            "devices": devices,
+            "count": len(devices),
+            "by_engine": by_engine,
+        }
+    except Exception as e:
+        return {"devices": [], "count": 0, "by_engine": {}, "error": str(e)}

server/src/wled_controller/api/routes/audio_sources.py

@@ -0,0 +1,251 @@
+"""Audio source routes: CRUD for audio sources + real-time test WebSocket."""
+
+import asyncio
+from typing import Optional
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from starlette.websockets import WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_audio_source_store,
+    get_audio_template_store,
+    get_color_strip_store,
+    get_processor_manager,
+)
+from wled_controller.api.schemas.audio_sources import (
+    AudioSourceCreate,
+    AudioSourceListResponse,
+    AudioSourceResponse,
+    AudioSourceUpdate,
+)
+from wled_controller.storage.audio_source import AudioSource
+from wled_controller.storage.audio_source_store import AudioSourceStore
+from wled_controller.storage.color_strip_store import ColorStripStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _to_response(source: AudioSource) -> AudioSourceResponse:
+    """Convert an AudioSource to an AudioSourceResponse."""
+    return AudioSourceResponse(
+        id=source.id,
+        name=source.name,
+        source_type=source.source_type,
+        device_index=getattr(source, "device_index", None),
+        is_loopback=getattr(source, "is_loopback", None),
+        audio_template_id=getattr(source, "audio_template_id", None),
+        audio_source_id=getattr(source, "audio_source_id", None),
+        channel=getattr(source, "channel", None),
+        description=source.description,
+        tags=source.tags,
+        created_at=source.created_at,
+        updated_at=source.updated_at,
+    )
+
+
+@router.get("/api/v1/audio-sources", response_model=AudioSourceListResponse, tags=["Audio Sources"])
+async def list_audio_sources(
+    _auth: AuthRequired,
+    source_type: Optional[str] = Query(None, description="Filter by source_type: multichannel or mono"),
+    store: AudioSourceStore = Depends(get_audio_source_store),
+):
+    """List all audio sources, optionally filtered by type."""
+    sources = store.get_all_sources()
+    if source_type:
+        sources = [s for s in sources if s.source_type == source_type]
+    return AudioSourceListResponse(
+        sources=[_to_response(s) for s in sources],
+        count=len(sources),
+    )
+
+
+@router.post("/api/v1/audio-sources", response_model=AudioSourceResponse, status_code=201, tags=["Audio Sources"])
+async def create_audio_source(
+    data: AudioSourceCreate,
+    _auth: AuthRequired,
+    store: AudioSourceStore = Depends(get_audio_source_store),
+):
+    """Create a new audio source."""
+    try:
+        source = store.create_source(
+            name=data.name,
+            source_type=data.source_type,
+            device_index=data.device_index,
+            is_loopback=data.is_loopback,
+            audio_source_id=data.audio_source_id,
+            channel=data.channel,
+            description=data.description,
+            audio_template_id=data.audio_template_id,
+            tags=data.tags,
+        )
+        fire_entity_event("audio_source", "created", source.id)
+        return _to_response(source)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.get("/api/v1/audio-sources/{source_id}", response_model=AudioSourceResponse, tags=["Audio Sources"])
+async def get_audio_source(
+    source_id: str,
+    _auth: AuthRequired,
+    store: AudioSourceStore = Depends(get_audio_source_store),
+):
+    """Get an audio source by ID."""
+    try:
+        source = store.get_source(source_id)
+        return _to_response(source)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+@router.put("/api/v1/audio-sources/{source_id}", response_model=AudioSourceResponse, tags=["Audio Sources"])
+async def update_audio_source(
+    source_id: str,
+    data: AudioSourceUpdate,
+    _auth: AuthRequired,
+    store: AudioSourceStore = Depends(get_audio_source_store),
+):
+    """Update an existing audio source."""
+    try:
+        source = store.update_source(
+            source_id=source_id,
+            name=data.name,
+            device_index=data.device_index,
+            is_loopback=data.is_loopback,
+            audio_source_id=data.audio_source_id,
+            channel=data.channel,
+            description=data.description,
+            audio_template_id=data.audio_template_id,
+            tags=data.tags,
+        )
+        fire_entity_event("audio_source", "updated", source_id)
+        return _to_response(source)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.delete("/api/v1/audio-sources/{source_id}", status_code=204, tags=["Audio Sources"])
+async def delete_audio_source(
+    source_id: str,
+    _auth: AuthRequired,
+    store: AudioSourceStore = Depends(get_audio_source_store),
+    css_store: ColorStripStore = Depends(get_color_strip_store),
+):
+    """Delete an audio source."""
+    try:
+        # Check if any CSS entities reference this audio source
+        from wled_controller.storage.color_strip_source import AudioColorStripSource
+        for css in css_store.get_all_sources():
+            if isinstance(css, AudioColorStripSource) and getattr(css, "audio_source_id", None) == source_id:
+                raise ValueError(
+                    f"Cannot delete: referenced by color strip source '{css.name}'"
+                )
+
+        store.delete_source(source_id)
+        fire_entity_event("audio_source", "deleted", source_id)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+# ===== REAL-TIME AUDIO TEST WEBSOCKET =====
+
+
+@router.websocket("/api/v1/audio-sources/{source_id}/test/ws")
+async def test_audio_source_ws(
+    websocket: WebSocket,
+    source_id: str,
+    token: str = Query(""),
+):
+    """WebSocket for real-time audio spectrum analysis. Auth via ?token=<api_key>.
+
+    Resolves the audio source to its device, acquires a ManagedAudioStream
+    (ref-counted — shares with running targets), and streams AudioAnalysis
+    snapshots as JSON at ~20 Hz.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    if not verify_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    # Resolve source → device info
+    store = get_audio_source_store()
+    template_store = get_audio_template_store()
+    manager = get_processor_manager()
+
+    try:
+        device_index, is_loopback, channel, audio_template_id = store.resolve_audio_source(source_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    # Resolve template → engine_type + config
+    engine_type = None
+    engine_config = None
+    if audio_template_id:
+        try:
+            template = template_store.get_template(audio_template_id)
+            engine_type = template.engine_type
+            engine_config = template.engine_config
+        except ValueError:
+            pass  # Fall back to best available engine
+
+    # Acquire shared audio stream
+    audio_mgr = manager.audio_capture_manager
+    try:
+        stream = audio_mgr.acquire(device_index, is_loopback, engine_type, engine_config)
+    except RuntimeError as e:
+        await websocket.close(code=4003, reason=str(e))
+        return
+
+    await websocket.accept()
+    logger.info(f"Audio test WebSocket connected for source {source_id}")
+
+    last_ts = 0.0
+    try:
+        while True:
+            analysis = stream.get_latest_analysis()
+            if analysis is not None and analysis.timestamp != last_ts:
+                last_ts = analysis.timestamp
+
+                # Select channel-specific data
+                if channel == "left":
+                    spectrum = analysis.left_spectrum
+                    rms = analysis.left_rms
+                elif channel == "right":
+                    spectrum = analysis.right_spectrum
+                    rms = analysis.right_rms
+                else:
+                    spectrum = analysis.spectrum
+                    rms = analysis.rms
+
+                await websocket.send_json({
+                    "spectrum": spectrum.tolist(),
+                    "rms": round(rms, 4),
+                    "peak": round(analysis.peak, 4),
+                    "beat": analysis.beat,
+                    "beat_intensity": round(analysis.beat_intensity, 4),
+                })
+
+            await asyncio.sleep(0.05)
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"Audio test WebSocket error for {source_id}: {e}")
+    finally:
+        audio_mgr.release(device_index, is_loopback, engine_type)
+        logger.info(f"Audio test WebSocket disconnected for source {source_id}")

server/src/wled_controller/api/routes/audio_templates.py

@@ -0,0 +1,246 @@
+"""Audio capture template and engine routes."""
+
+import asyncio
+import json
+from fastapi import APIRouter, HTTPException, Depends, Query
+from starlette.websockets import WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import fire_entity_event, get_audio_template_store, get_audio_source_store, get_processor_manager
+from wled_controller.api.schemas.audio_templates import (
+    AudioEngineInfo,
+    AudioEngineListResponse,
+    AudioTemplateCreate,
+    AudioTemplateListResponse,
+    AudioTemplateResponse,
+    AudioTemplateUpdate,
+)
+from wled_controller.core.audio.factory import AudioEngineRegistry
+from wled_controller.storage.audio_template_store import AudioTemplateStore
+from wled_controller.storage.audio_source_store import AudioSourceStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+# ===== AUDIO TEMPLATE ENDPOINTS =====
+
+@router.get("/api/v1/audio-templates", response_model=AudioTemplateListResponse, tags=["Audio Templates"])
+async def list_audio_templates(
+    _auth: AuthRequired,
+    store: AudioTemplateStore = Depends(get_audio_template_store),
+):
+    """List all audio capture templates."""
+    try:
+        templates = store.get_all_templates()
+        responses = [
+            AudioTemplateResponse(
+                id=t.id, name=t.name, engine_type=t.engine_type,
+                engine_config=t.engine_config, tags=t.tags,
+                created_at=t.created_at,
+                updated_at=t.updated_at, description=t.description,
+            )
+            for t in templates
+        ]
+        return AudioTemplateListResponse(templates=responses, count=len(responses))
+    except Exception as e:
+        logger.error(f"Failed to list audio templates: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/audio-templates", response_model=AudioTemplateResponse, tags=["Audio Templates"], status_code=201)
+async def create_audio_template(
+    data: AudioTemplateCreate,
+    _auth: AuthRequired,
+    store: AudioTemplateStore = Depends(get_audio_template_store),
+):
+    """Create a new audio capture template."""
+    try:
+        template = store.create_template(
+            name=data.name, engine_type=data.engine_type,
+            engine_config=data.engine_config, description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("audio_template", "created", template.id)
+        return AudioTemplateResponse(
+            id=template.id, name=template.name, engine_type=template.engine_type,
+            engine_config=template.engine_config, tags=template.tags,
+            created_at=template.created_at,
+            updated_at=template.updated_at, description=template.description,
+        )
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to create audio template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/audio-templates/{template_id}", response_model=AudioTemplateResponse, tags=["Audio Templates"])
+async def get_audio_template(
+    template_id: str,
+    _auth: AuthRequired,
+    store: AudioTemplateStore = Depends(get_audio_template_store),
+):
+    """Get audio template by ID."""
+    try:
+        t = store.get_template(template_id)
+    except ValueError:
+        raise HTTPException(status_code=404, detail=f"Audio template {template_id} not found")
+    return AudioTemplateResponse(
+        id=t.id, name=t.name, engine_type=t.engine_type,
+        engine_config=t.engine_config, tags=t.tags,
+        created_at=t.created_at,
+        updated_at=t.updated_at, description=t.description,
+    )
+
+
+@router.put("/api/v1/audio-templates/{template_id}", response_model=AudioTemplateResponse, tags=["Audio Templates"])
+async def update_audio_template(
+    template_id: str,
+    data: AudioTemplateUpdate,
+    _auth: AuthRequired,
+    store: AudioTemplateStore = Depends(get_audio_template_store),
+):
+    """Update an audio template."""
+    try:
+        t = store.update_template(
+            template_id=template_id, name=data.name,
+            engine_type=data.engine_type, engine_config=data.engine_config,
+            description=data.description, tags=data.tags,
+        )
+        fire_entity_event("audio_template", "updated", template_id)
+        return AudioTemplateResponse(
+            id=t.id, name=t.name, engine_type=t.engine_type,
+            engine_config=t.engine_config, tags=t.tags,
+            created_at=t.created_at,
+            updated_at=t.updated_at, description=t.description,
+        )
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update audio template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/audio-templates/{template_id}", status_code=204, tags=["Audio Templates"])
+async def delete_audio_template(
+    template_id: str,
+    _auth: AuthRequired,
+    store: AudioTemplateStore = Depends(get_audio_template_store),
+    audio_source_store: AudioSourceStore = Depends(get_audio_source_store),
+):
+    """Delete an audio template."""
+    try:
+        store.delete_template(template_id, audio_source_store=audio_source_store)
+        fire_entity_event("audio_template", "deleted", template_id)
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete audio template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+# ===== AUDIO ENGINE ENDPOINTS =====
+
+@router.get("/api/v1/audio-engines", response_model=AudioEngineListResponse, tags=["Audio Templates"])
+async def list_audio_engines(_auth: AuthRequired):
+    """List all registered audio capture engines."""
+    try:
+        available_set = set(AudioEngineRegistry.get_available_engines())
+        all_engines = AudioEngineRegistry.get_all_engines()
+
+        engines = []
+        for engine_type, engine_class in all_engines.items():
+            engines.append(
+                AudioEngineInfo(
+                    type=engine_type,
+                    name=engine_type.upper(),
+                    default_config=engine_class.get_default_config(),
+                    available=(engine_type in available_set),
+                )
+            )
+
+        return AudioEngineListResponse(engines=engines, count=len(engines))
+    except Exception as e:
+        logger.error(f"Failed to list audio engines: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+# ===== REAL-TIME AUDIO TEMPLATE TEST WEBSOCKET =====
+
+
+@router.websocket("/api/v1/audio-templates/{template_id}/test/ws")
+async def test_audio_template_ws(
+    websocket: WebSocket,
+    template_id: str,
+    token: str = Query(""),
+    device_index: int = Query(-1),
+    is_loopback: int = Query(1),
+):
+    """WebSocket for real-time audio spectrum test of a template with a chosen device.
+
+    Auth via ?token=<api_key>. Device specified via ?device_index=N&is_loopback=0|1.
+    Streams AudioAnalysis snapshots as JSON at ~20 Hz.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    if not verify_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    # Resolve template
+    store = get_audio_template_store()
+    try:
+        template = store.get_template(template_id)
+    except ValueError:
+        await websocket.close(code=4004, reason="Template not found")
+        return
+
+    # Acquire shared audio stream
+    manager = get_processor_manager()
+    audio_mgr = manager.audio_capture_manager
+    loopback = is_loopback != 0
+
+    try:
+        stream = audio_mgr.acquire(device_index, loopback, template.engine_type, template.engine_config)
+    except RuntimeError as e:
+        await websocket.close(code=4003, reason=str(e))
+        return
+
+    await websocket.accept()
+    logger.info(f"Audio template test WS connected: template={template_id} device={device_index} loopback={loopback}")
+
+    last_ts = 0.0
+    try:
+        while True:
+            analysis = stream.get_latest_analysis()
+            if analysis is not None and analysis.timestamp != last_ts:
+                last_ts = analysis.timestamp
+                await websocket.send_json({
+                    "spectrum": analysis.spectrum.tolist(),
+                    "rms": round(analysis.rms, 4),
+                    "peak": round(analysis.peak, 4),
+                    "beat": analysis.beat,
+                    "beat_intensity": round(analysis.beat_intensity, 4),
+                })
+            await asyncio.sleep(0.05)
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"Audio template test WS error: {e}")
+    finally:
+        audio_mgr.release(device_index, loopback, template.engine_type)
+        logger.info(f"Audio template test WS disconnected: template={template_id}")

server/src/wled_controller/api/routes/automations.py

@@ -0,0 +1,363 @@
+"""Automation management API routes."""
+
+import secrets
+
+from fastapi import APIRouter, Depends, HTTPException, Request
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_automation_engine,
+    get_automation_store,
+    get_scene_preset_store,
+)
+from wled_controller.api.schemas.automations import (
+    AutomationCreate,
+    AutomationListResponse,
+    AutomationResponse,
+    AutomationUpdate,
+    ConditionSchema,
+)
+from wled_controller.core.automations.automation_engine import AutomationEngine
+from wled_controller.storage.automation import (
+    AlwaysCondition,
+    ApplicationCondition,
+    Condition,
+    DisplayStateCondition,
+    MQTTCondition,
+    StartupCondition,
+    SystemIdleCondition,
+    TimeOfDayCondition,
+    WebhookCondition,
+)
+from wled_controller.storage.automation_store import AutomationStore
+from wled_controller.storage.scene_preset_store import ScenePresetStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+router = APIRouter()
+
+
+# ===== Helpers =====
+
+def _condition_from_schema(s: ConditionSchema) -> Condition:
+    if s.condition_type == "always":
+        return AlwaysCondition()
+    if s.condition_type == "application":
+        return ApplicationCondition(
+            apps=s.apps or [],
+            match_type=s.match_type or "running",
+        )
+    if s.condition_type == "time_of_day":
+        return TimeOfDayCondition(
+            start_time=s.start_time or "00:00",
+            end_time=s.end_time or "23:59",
+        )
+    if s.condition_type == "system_idle":
+        return SystemIdleCondition(
+            idle_minutes=s.idle_minutes if s.idle_minutes is not None else 5,
+            when_idle=s.when_idle if s.when_idle is not None else True,
+        )
+    if s.condition_type == "display_state":
+        return DisplayStateCondition(
+            state=s.state or "on",
+        )
+    if s.condition_type == "mqtt":
+        return MQTTCondition(
+            topic=s.topic or "",
+            payload=s.payload or "",
+            match_mode=s.match_mode or "exact",
+        )
+    if s.condition_type == "webhook":
+        return WebhookCondition(
+            token=s.token or secrets.token_hex(16),
+        )
+    if s.condition_type == "startup":
+        return StartupCondition()
+    raise ValueError(f"Unknown condition type: {s.condition_type}")
+
+
+def _condition_to_schema(c: Condition) -> ConditionSchema:
+    d = c.to_dict()
+    return ConditionSchema(**d)
+
+
+def _automation_to_response(automation, engine: AutomationEngine, request: Request = None) -> AutomationResponse:
+    state = engine.get_automation_state(automation.id)
+
+    # Build webhook URL from the first webhook condition (if any)
+    webhook_url = None
+    for c in automation.conditions:
+        if isinstance(c, WebhookCondition) and c.token:
+            # Prefer configured external URL, fall back to request base URL
+            from wled_controller.api.routes.system import load_external_url
+            ext = load_external_url()
+            if ext:
+                webhook_url = ext + f"/api/v1/webhooks/{c.token}"
+            elif request:
+                webhook_url = str(request.base_url).rstrip("/") + f"/api/v1/webhooks/{c.token}"
+            else:
+                webhook_url = f"/api/v1/webhooks/{c.token}"
+            break
+
+    return AutomationResponse(
+        id=automation.id,
+        name=automation.name,
+        enabled=automation.enabled,
+        condition_logic=automation.condition_logic,
+        conditions=[_condition_to_schema(c) for c in automation.conditions],
+        scene_preset_id=automation.scene_preset_id,
+        deactivation_mode=automation.deactivation_mode,
+        deactivation_scene_preset_id=automation.deactivation_scene_preset_id,
+        webhook_url=webhook_url,
+        is_active=state["is_active"],
+        last_activated_at=state.get("last_activated_at"),
+        last_deactivated_at=state.get("last_deactivated_at"),
+        tags=automation.tags,
+        created_at=automation.created_at,
+        updated_at=automation.updated_at,
+    )
+
+
+def _validate_condition_logic(logic: str) -> None:
+    if logic not in ("or", "and"):
+        raise HTTPException(status_code=400, detail=f"Invalid condition_logic: {logic}. Must be 'or' or 'and'.")
+
+
+def _validate_scene_refs(
+    scene_preset_id: str | None,
+    deactivation_scene_preset_id: str | None,
+    scene_store: ScenePresetStore,
+) -> None:
+    """Validate that referenced scene preset IDs exist."""
+    for sid, label in [
+        (scene_preset_id, "scene_preset_id"),
+        (deactivation_scene_preset_id, "deactivation_scene_preset_id"),
+    ]:
+        if sid is not None:
+            try:
+                scene_store.get_preset(sid)
+            except ValueError:
+                raise HTTPException(status_code=400, detail=f"Scene preset not found: {sid} ({label})")
+
+
+# ===== CRUD Endpoints =====
+
+@router.post(
+    "/api/v1/automations",
+    response_model=AutomationResponse,
+    tags=["Automations"],
+    status_code=201,
+)
+async def create_automation(
+    request: Request,
+    data: AutomationCreate,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+    scene_store: ScenePresetStore = Depends(get_scene_preset_store),
+):
+    """Create a new automation."""
+    _validate_condition_logic(data.condition_logic)
+    _validate_scene_refs(data.scene_preset_id, data.deactivation_scene_preset_id, scene_store)
+
+    try:
+        conditions = [_condition_from_schema(c) for c in data.conditions]
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+    automation = store.create_automation(
+        name=data.name,
+        enabled=data.enabled,
+        condition_logic=data.condition_logic,
+        conditions=conditions,
+        scene_preset_id=data.scene_preset_id,
+        deactivation_mode=data.deactivation_mode,
+        deactivation_scene_preset_id=data.deactivation_scene_preset_id,
+        tags=data.tags,
+    )
+
+    if automation.enabled:
+        await engine.trigger_evaluate()
+
+    fire_entity_event("automation", "created", automation.id)
+    return _automation_to_response(automation, engine, request)
+
+
+@router.get(
+    "/api/v1/automations",
+    response_model=AutomationListResponse,
+    tags=["Automations"],
+)
+async def list_automations(
+    request: Request,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+):
+    """List all automations."""
+    automations = store.get_all_automations()
+    return AutomationListResponse(
+        automations=[_automation_to_response(a, engine, request) for a in automations],
+        count=len(automations),
+    )
+
+
+@router.get(
+    "/api/v1/automations/{automation_id}",
+    response_model=AutomationResponse,
+    tags=["Automations"],
+)
+async def get_automation(
+    request: Request,
+    automation_id: str,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+):
+    """Get a single automation."""
+    try:
+        automation = store.get_automation(automation_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    return _automation_to_response(automation, engine, request)
+
+
+@router.put(
+    "/api/v1/automations/{automation_id}",
+    response_model=AutomationResponse,
+    tags=["Automations"],
+)
+async def update_automation(
+    request: Request,
+    automation_id: str,
+    data: AutomationUpdate,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+    scene_store: ScenePresetStore = Depends(get_scene_preset_store),
+):
+    """Update an automation."""
+    if data.condition_logic is not None:
+        _validate_condition_logic(data.condition_logic)
+
+    # Validate scene refs (only the ones being updated)
+    _validate_scene_refs(data.scene_preset_id, data.deactivation_scene_preset_id, scene_store)
+
+    conditions = None
+    if data.conditions is not None:
+        try:
+            conditions = [_condition_from_schema(c) for c in data.conditions]
+        except EntityNotFoundError as e:
+            raise HTTPException(status_code=404, detail=str(e))
+
+        except ValueError as e:
+            raise HTTPException(status_code=400, detail=str(e))
+
+    try:
+        # If disabling, deactivate first
+        if data.enabled is False:
+            await engine.deactivate_if_active(automation_id)
+
+        # Build update kwargs — use sentinel for Optional[str] fields
+        update_kwargs = dict(
+            automation_id=automation_id,
+            name=data.name,
+            enabled=data.enabled,
+            condition_logic=data.condition_logic,
+            conditions=conditions,
+            deactivation_mode=data.deactivation_mode,
+            tags=data.tags,
+        )
+        if data.scene_preset_id is not None:
+            update_kwargs["scene_preset_id"] = data.scene_preset_id
+        if data.deactivation_scene_preset_id is not None:
+            update_kwargs["deactivation_scene_preset_id"] = data.deactivation_scene_preset_id
+
+        automation = store.update_automation(**update_kwargs)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    # Re-evaluate immediately if automation is enabled (may have new conditions/scene)
+    if automation.enabled:
+        await engine.trigger_evaluate()
+
+    fire_entity_event("automation", "updated", automation_id)
+    return _automation_to_response(automation, engine, request)
+
+
+@router.delete(
+    "/api/v1/automations/{automation_id}",
+    status_code=204,
+    tags=["Automations"],
+)
+async def delete_automation(
+    automation_id: str,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+):
+    """Delete an automation."""
+    # Deactivate first
+    await engine.deactivate_if_active(automation_id)
+
+    try:
+        store.delete_automation(automation_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    fire_entity_event("automation", "deleted", automation_id)
+
+
+# ===== Enable/Disable =====
+
+@router.post(
+    "/api/v1/automations/{automation_id}/enable",
+    response_model=AutomationResponse,
+    tags=["Automations"],
+)
+async def enable_automation(
+    request: Request,
+    automation_id: str,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+):
+    """Enable an automation."""
+    try:
+        automation = store.update_automation(automation_id=automation_id, enabled=True)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    # Evaluate immediately so scene activates without waiting for the next poll cycle
+    await engine.trigger_evaluate()
+
+    return _automation_to_response(automation, engine, request)
+
+
+@router.post(
+    "/api/v1/automations/{automation_id}/disable",
+    response_model=AutomationResponse,
+    tags=["Automations"],
+)
+async def disable_automation(
+    request: Request,
+    automation_id: str,
+    _auth: AuthRequired,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+):
+    """Disable an automation and deactivate it."""
+    await engine.deactivate_if_active(automation_id)
+
+    try:
+        automation = store.update_automation(automation_id=automation_id, enabled=False)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    return _automation_to_response(automation, engine, request)

server/src/wled_controller/api/routes/color_strip_processing.py

@@ -0,0 +1,275 @@
+"""Color strip processing template routes."""
+
+import asyncio
+import json as _json
+import time as _time
+import uuid as _uuid
+
+import numpy as np
+from fastapi import APIRouter, HTTPException, Depends, Query, WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_color_strip_store,
+    get_cspt_store,
+    get_device_store,
+    get_processor_manager,
+)
+from wled_controller.api.schemas.filters import FilterInstanceSchema
+from wled_controller.api.schemas.color_strip_processing import (
+    ColorStripProcessingTemplateCreate,
+    ColorStripProcessingTemplateListResponse,
+    ColorStripProcessingTemplateResponse,
+    ColorStripProcessingTemplateUpdate,
+)
+from wled_controller.core.filters import FilterInstance
+from wled_controller.storage.color_strip_processing_template_store import ColorStripProcessingTemplateStore
+from wled_controller.storage.color_strip_store import ColorStripStore
+from wled_controller.storage import DeviceStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _cspt_to_response(t) -> ColorStripProcessingTemplateResponse:
+    """Convert a ColorStripProcessingTemplate to its API response."""
+    return ColorStripProcessingTemplateResponse(
+        id=t.id,
+        name=t.name,
+        filters=[FilterInstanceSchema(filter_id=f.filter_id, options=f.options) for f in t.filters],
+        created_at=t.created_at,
+        updated_at=t.updated_at,
+        description=t.description,
+        tags=t.tags,
+    )
+
+
+@router.get("/api/v1/color-strip-processing-templates", response_model=ColorStripProcessingTemplateListResponse, tags=["Color Strip Processing"])
+async def list_cspt(
+    _auth: AuthRequired,
+    store: ColorStripProcessingTemplateStore = Depends(get_cspt_store),
+):
+    """List all color strip processing templates."""
+    try:
+        templates = store.get_all_templates()
+        responses = [_cspt_to_response(t) for t in templates]
+        return ColorStripProcessingTemplateListResponse(templates=responses, count=len(responses))
+    except Exception as e:
+        logger.error(f"Failed to list color strip processing templates: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/color-strip-processing-templates", response_model=ColorStripProcessingTemplateResponse, tags=["Color Strip Processing"], status_code=201)
+async def create_cspt(
+    data: ColorStripProcessingTemplateCreate,
+    _auth: AuthRequired,
+    store: ColorStripProcessingTemplateStore = Depends(get_cspt_store),
+):
+    """Create a new color strip processing template."""
+    try:
+        filters = [FilterInstance(f.filter_id, f.options) for f in data.filters]
+        template = store.create_template(
+            name=data.name,
+            filters=filters,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("cspt", "created", template.id)
+        return _cspt_to_response(template)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to create color strip processing template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/color-strip-processing-templates/{template_id}", response_model=ColorStripProcessingTemplateResponse, tags=["Color Strip Processing"])
+async def get_cspt(
+    template_id: str,
+    _auth: AuthRequired,
+    store: ColorStripProcessingTemplateStore = Depends(get_cspt_store),
+):
+    """Get color strip processing template by ID."""
+    try:
+        template = store.get_template(template_id)
+        return _cspt_to_response(template)
+    except ValueError:
+        raise HTTPException(status_code=404, detail=f"Color strip processing template {template_id} not found")
+
+
+@router.put("/api/v1/color-strip-processing-templates/{template_id}", response_model=ColorStripProcessingTemplateResponse, tags=["Color Strip Processing"])
+async def update_cspt(
+    template_id: str,
+    data: ColorStripProcessingTemplateUpdate,
+    _auth: AuthRequired,
+    store: ColorStripProcessingTemplateStore = Depends(get_cspt_store),
+):
+    """Update a color strip processing template."""
+    try:
+        filters = [FilterInstance(f.filter_id, f.options) for f in data.filters] if data.filters is not None else None
+        template = store.update_template(
+            template_id=template_id,
+            name=data.name,
+            filters=filters,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("cspt", "updated", template_id)
+        return _cspt_to_response(template)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update color strip processing template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/color-strip-processing-templates/{template_id}", status_code=204, tags=["Color Strip Processing"])
+async def delete_cspt(
+    template_id: str,
+    _auth: AuthRequired,
+    store: ColorStripProcessingTemplateStore = Depends(get_cspt_store),
+    device_store: DeviceStore = Depends(get_device_store),
+    css_store: ColorStripStore = Depends(get_color_strip_store),
+):
+    """Delete a color strip processing template."""
+    try:
+        refs = store.get_references(template_id, device_store=device_store, css_store=css_store)
+        if refs:
+            names = ", ".join(refs)
+            raise HTTPException(
+                status_code=409,
+                detail=f"Cannot delete: template is referenced by: {names}. "
+                       "Please reassign before deleting.",
+            )
+        store.delete_template(template_id)
+        fire_entity_event("cspt", "deleted", template_id)
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete color strip processing template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+# ── Test / Preview WebSocket ──────────────────────────────────────────
+
+@router.websocket("/api/v1/color-strip-processing-templates/{template_id}/test/ws")
+async def test_cspt_ws(
+    websocket: WebSocket,
+    template_id: str,
+    token: str = Query(""),
+    input_source_id: str = Query(""),
+    led_count: int = Query(100),
+    fps: int = Query(20),
+):
+    """WebSocket for real-time CSPT preview.
+
+    Takes an input CSS source, applies the CSPT filter chain, and streams
+    the processed RGB frames. Auth via ``?token=<api_key>``.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    from wled_controller.core.filters import FilterRegistry
+    from wled_controller.core.processing.processor_manager import ProcessorManager
+
+    if not verify_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    # Validate template exists
+    cspt_store = get_cspt_store()
+    try:
+        template = cspt_store.get_template(template_id)
+    except (ValueError, RuntimeError) as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    if not input_source_id:
+        await websocket.close(code=4003, reason="input_source_id is required")
+        return
+
+    # Validate input source exists
+    css_store = get_color_strip_store()
+    try:
+        input_source = css_store.get_source(input_source_id)
+    except (ValueError, RuntimeError) as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    # Resolve filter chain
+    try:
+        resolved = cspt_store.resolve_filter_instances(template.filters)
+        filters = [FilterRegistry.create_instance(fi.filter_id, fi.options) for fi in resolved]
+    except Exception as e:
+        logger.error(f"CSPT test: failed to resolve filters for {template_id}: {e}")
+        await websocket.close(code=4003, reason=str(e))
+        return
+
+    # Acquire input stream
+    manager: ProcessorManager = get_processor_manager()
+    csm = manager.color_strip_stream_manager
+    consumer_id = f"__cspt_test_{_uuid.uuid4().hex[:8]}__"
+    try:
+        stream = csm.acquire(input_source_id, consumer_id)
+    except Exception as e:
+        logger.error(f"CSPT test: failed to acquire input stream for {input_source_id}: {e}")
+        await websocket.close(code=4003, reason=str(e))
+        return
+
+    # Configure LED count for auto-sizing streams
+    if hasattr(stream, "configure"):
+        stream.configure(max(1, led_count))
+
+    fps = max(1, min(60, fps))
+    frame_interval = 1.0 / fps
+
+    await websocket.accept()
+    logger.info(f"CSPT test WS connected: template={template_id}, input={input_source_id}")
+
+    try:
+        # Send metadata
+        meta = {
+            "type": "meta",
+            "source_type": input_source.source_type,
+            "source_name": input_source.name,
+            "template_name": template.name,
+            "led_count": stream.led_count,
+            "filter_count": len(filters),
+        }
+        await websocket.send_text(_json.dumps(meta))
+
+        # Stream processed frames
+        while True:
+            colors = stream.get_latest_colors()
+            if colors is not None:
+                # Apply CSPT filters
+                for flt in filters:
+                    try:
+                        result = flt.process_strip(colors)
+                        if result is not None:
+                            colors = result
+                    except Exception:
+                        pass
+                await websocket.send_bytes(colors.tobytes())
+            await asyncio.sleep(frame_interval)
+
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"CSPT test WS error: {e}")
+    finally:
+        csm.release(input_source_id, consumer_id)
+        logger.info(f"CSPT test WS disconnected: template={template_id}")

server/src/wled_controller/api/routes/devices.py

@@ -0,0 +1,663 @@
+"""Device routes: CRUD, health state, brightness, power, calibration, WS stream."""
+
+import httpx
+from fastapi import APIRouter, HTTPException, Depends, Query, WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.core.devices.led_client import (
+    get_all_providers,
+    get_device_capabilities,
+    get_provider,
+)
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_device_store,
+    get_output_target_store,
+    get_processor_manager,
+)
+from wled_controller.api.schemas.devices import (
+    DeviceCreate,
+    DeviceListResponse,
+    DeviceResponse,
+    DeviceStateResponse,
+    DeviceUpdate,
+    DiscoveredDeviceResponse,
+    DiscoverDevicesResponse,
+    OpenRGBZoneResponse,
+    OpenRGBZonesResponse,
+)
+from wled_controller.core.processing.processor_manager import ProcessorManager
+from wled_controller.storage import DeviceStore
+from wled_controller.storage.output_target_store import OutputTargetStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _device_to_response(device) -> DeviceResponse:
+    """Convert a Device to DeviceResponse."""
+    return DeviceResponse(
+        id=device.id,
+        name=device.name,
+        url=device.url,
+        device_type=device.device_type,
+        led_count=device.led_count,
+        enabled=device.enabled,
+        baud_rate=device.baud_rate,
+        auto_shutdown=device.auto_shutdown,
+        send_latency_ms=device.send_latency_ms,
+        rgbw=device.rgbw,
+        zone_mode=device.zone_mode,
+        capabilities=sorted(get_device_capabilities(device.device_type)),
+        tags=device.tags,
+        dmx_protocol=getattr(device, 'dmx_protocol', 'artnet'),
+        dmx_start_universe=getattr(device, 'dmx_start_universe', 0),
+        dmx_start_channel=getattr(device, 'dmx_start_channel', 1),
+        espnow_peer_mac=getattr(device, 'espnow_peer_mac', ''),
+        espnow_channel=getattr(device, 'espnow_channel', 1),
+        hue_username=getattr(device, 'hue_username', ''),
+        hue_client_key=getattr(device, 'hue_client_key', ''),
+        hue_entertainment_group_id=getattr(device, 'hue_entertainment_group_id', ''),
+        spi_speed_hz=getattr(device, 'spi_speed_hz', 800000),
+        spi_led_type=getattr(device, 'spi_led_type', 'WS2812B'),
+        chroma_device_type=getattr(device, 'chroma_device_type', 'chromalink'),
+        gamesense_device_type=getattr(device, 'gamesense_device_type', 'keyboard'),
+        created_at=device.created_at,
+        updated_at=device.updated_at,
+    )
+
+
+# ===== DEVICE MANAGEMENT ENDPOINTS =====
+
+@router.post("/api/v1/devices", response_model=DeviceResponse, tags=["Devices"], status_code=201)
+async def create_device(
+    device_data: DeviceCreate,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Create and attach a new LED device."""
+    try:
+        device_type = device_data.device_type
+        logger.info(f"Creating {device_type} device: {device_data.name}")
+
+        device_url = device_data.url.rstrip("/")
+
+        # Validate via provider
+        try:
+            provider = get_provider(device_type)
+        except ValueError:
+            raise HTTPException(
+                status_code=400,
+                detail=f"Unsupported device type: {device_type}"
+            )
+
+        try:
+            result = await provider.validate_device(device_url)
+            led_count = result.get("led_count") or device_data.led_count
+            if not led_count or led_count < 1:
+                raise HTTPException(
+                    status_code=422,
+                    detail="LED count is required for this device type.",
+                )
+        except httpx.ConnectError:
+            raise HTTPException(
+                status_code=422,
+                detail=f"Cannot reach {device_type} device at {device_url}. Check the URL and ensure the device is powered on."
+            )
+        except httpx.TimeoutException:
+            raise HTTPException(
+                status_code=422,
+                detail=f"Connection to {device_url} timed out. Check network connectivity."
+            )
+        except ValueError as e:
+            raise HTTPException(status_code=422, detail=str(e))
+        except HTTPException:
+            raise
+        except Exception as e:
+            raise HTTPException(
+                status_code=422,
+                detail=f"Failed to connect to {device_type} device at {device_url}: {e}"
+            )
+
+        # Resolve auto_shutdown default: False for all types
+        auto_shutdown = device_data.auto_shutdown
+        if auto_shutdown is None:
+            auto_shutdown = False
+
+        # Create device in storage
+        device = store.create_device(
+            name=device_data.name,
+            url=device_data.url,
+            led_count=led_count,
+            device_type=device_type,
+            baud_rate=device_data.baud_rate,
+            auto_shutdown=auto_shutdown,
+            send_latency_ms=device_data.send_latency_ms or 0,
+            rgbw=device_data.rgbw or False,
+            zone_mode=device_data.zone_mode or "combined",
+            tags=device_data.tags,
+            dmx_protocol=device_data.dmx_protocol or "artnet",
+            dmx_start_universe=device_data.dmx_start_universe or 0,
+            dmx_start_channel=device_data.dmx_start_channel or 1,
+            espnow_peer_mac=device_data.espnow_peer_mac or "",
+            espnow_channel=device_data.espnow_channel or 1,
+            hue_username=device_data.hue_username or "",
+            hue_client_key=device_data.hue_client_key or "",
+            hue_entertainment_group_id=device_data.hue_entertainment_group_id or "",
+            spi_speed_hz=device_data.spi_speed_hz or 800000,
+            spi_led_type=device_data.spi_led_type or "WS2812B",
+            chroma_device_type=device_data.chroma_device_type or "chromalink",
+            gamesense_device_type=device_data.gamesense_device_type or "keyboard",
+        )
+
+        # WS devices: auto-set URL to ws://{device_id}
+        if device_type == "ws":
+            device = store.update_device(device.id, url=f"ws://{device.id}")
+
+        # Register in processor manager for health monitoring
+        manager.add_device(
+            device_id=device.id,
+            device_url=device.url,
+            led_count=device.led_count,
+            device_type=device.device_type,
+            baud_rate=device.baud_rate,
+            auto_shutdown=device.auto_shutdown,
+            zone_mode=device.zone_mode,
+        )
+
+        fire_entity_event("device", "created", device.id)
+        return _device_to_response(device)
+
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"Failed to create device: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/devices", response_model=DeviceListResponse, tags=["Devices"])
+async def list_devices(
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+):
+    """List all attached WLED devices."""
+    devices = store.get_all_devices()
+    responses = [_device_to_response(d) for d in devices]
+    return DeviceListResponse(devices=responses, count=len(responses))
+
+
+@router.get("/api/v1/devices/discover", response_model=DiscoverDevicesResponse, tags=["Devices"])
+async def discover_devices(
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    timeout: float = 3.0,
+    device_type: str | None = None,
+):
+    """Scan for LED devices. Optionally filter by device_type (e.g. wled, adalight)."""
+    import asyncio
+    import time
+
+    start = time.time()
+    capped_timeout = min(timeout, 10.0)
+
+    if device_type:
+        # Discover from a single provider
+        try:
+            provider = get_provider(device_type)
+        except ValueError:
+            raise HTTPException(status_code=400, detail=f"Unknown device type: {device_type}")
+        discovered = await provider.discover(timeout=capped_timeout)
+    else:
+        # Discover from all providers in parallel
+        providers = get_all_providers()
+        discover_tasks = [p.discover(timeout=capped_timeout) for p in providers.values()]
+        all_results = await asyncio.gather(*discover_tasks)
+        discovered = [d for batch in all_results for d in batch]
+    elapsed_ms = (time.time() - start) * 1000
+
+    existing_urls = {d.url.rstrip("/").lower() for d in store.get_all_devices()}
+
+    results = []
+    for d in discovered:
+        already_added = d.url.rstrip("/").lower() in existing_urls
+        results.append(
+            DiscoveredDeviceResponse(
+                name=d.name,
+                url=d.url,
+                device_type=d.device_type,
+                ip=d.ip,
+                mac=d.mac,
+                led_count=d.led_count,
+                version=d.version,
+                already_added=already_added,
+            )
+        )
+
+    return DiscoverDevicesResponse(
+        devices=results,
+        count=len(results),
+        scan_duration_ms=round(elapsed_ms, 1),
+    )
+
+
+@router.get("/api/v1/devices/openrgb-zones", response_model=OpenRGBZonesResponse, tags=["Devices"])
+async def get_openrgb_zones(
+    _auth: AuthRequired,
+    url: str = Query(..., description="Base OpenRGB URL (e.g. openrgb://localhost:6742/0)"),
+):
+    """List available zones on an OpenRGB device."""
+    import asyncio
+
+    from wled_controller.core.devices.openrgb_client import parse_openrgb_url
+
+    host, port, device_index, _zones = parse_openrgb_url(url)
+
+    def _fetch_zones():
+        from openrgb import OpenRGBClient
+
+        client = OpenRGBClient(host, port, name="WLED Controller (zones)")
+        try:
+            devices = client.devices
+            if device_index >= len(devices):
+                raise ValueError(
+                    f"Device index {device_index} out of range "
+                    f"(server has {len(devices)} device(s))"
+                )
+            device = devices[device_index]
+            zone_type_map = {0: "single", 1: "linear", 2: "matrix"}
+            zones = []
+            for z in device.zones:
+                zt = zone_type_map.get(getattr(z, "type", -1), "unknown")
+                zones.append(OpenRGBZoneResponse(
+                    name=z.name,
+                    led_count=len(z.leds),
+                    zone_type=zt,
+                ))
+            return device.name, zones
+        finally:
+            client.disconnect()
+
+    try:
+        device_name, zones = await asyncio.to_thread(_fetch_zones)
+        return OpenRGBZonesResponse(device_name=device_name, zones=zones)
+    except ValueError as e:
+        raise HTTPException(status_code=422, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to list OpenRGB zones: {e}")
+        raise HTTPException(status_code=502, detail=f"Cannot reach OpenRGB server: {e}")
+
+
+@router.get("/api/v1/devices/batch/states", tags=["Devices"])
+async def batch_device_states(
+    _auth: AuthRequired,
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Get health/connection state for all devices in a single request."""
+    return {"states": manager.get_all_device_health_dicts()}
+
+
+@router.get("/api/v1/devices/{device_id}", response_model=DeviceResponse, tags=["Devices"])
+async def get_device(
+    device_id: str,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+):
+    """Get device details by ID."""
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    return _device_to_response(device)
+
+
+@router.put("/api/v1/devices/{device_id}", response_model=DeviceResponse, tags=["Devices"])
+async def update_device(
+    device_id: str,
+    update_data: DeviceUpdate,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Update device information."""
+    try:
+        device = store.update_device(
+            device_id=device_id,
+            name=update_data.name,
+            url=update_data.url,
+            enabled=update_data.enabled,
+            led_count=update_data.led_count,
+            baud_rate=update_data.baud_rate,
+            auto_shutdown=update_data.auto_shutdown,
+            send_latency_ms=update_data.send_latency_ms,
+            rgbw=update_data.rgbw,
+            zone_mode=update_data.zone_mode,
+            tags=update_data.tags,
+            dmx_protocol=update_data.dmx_protocol,
+            dmx_start_universe=update_data.dmx_start_universe,
+            dmx_start_channel=update_data.dmx_start_channel,
+            espnow_peer_mac=update_data.espnow_peer_mac,
+            espnow_channel=update_data.espnow_channel,
+            hue_username=update_data.hue_username,
+            hue_client_key=update_data.hue_client_key,
+            hue_entertainment_group_id=update_data.hue_entertainment_group_id,
+            spi_speed_hz=update_data.spi_speed_hz,
+            spi_led_type=update_data.spi_led_type,
+            chroma_device_type=update_data.chroma_device_type,
+            gamesense_device_type=update_data.gamesense_device_type,
+        )
+
+        # Sync connection info in processor manager
+        try:
+            manager.update_device_info(
+                device_id,
+                device_url=update_data.url,
+                led_count=update_data.led_count,
+                baud_rate=update_data.baud_rate,
+            )
+        except ValueError:
+            pass
+
+        # Sync auto_shutdown and zone_mode in runtime state
+        ds = manager.find_device_state(device_id)
+        if ds:
+            if update_data.auto_shutdown is not None:
+                ds.auto_shutdown = update_data.auto_shutdown
+            if update_data.zone_mode is not None:
+                ds.zone_mode = update_data.zone_mode
+
+        fire_entity_event("device", "updated", device_id)
+        return _device_to_response(device)
+
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update device: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/devices/{device_id}", status_code=204, tags=["Devices"])
+async def delete_device(
+    device_id: str,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Delete/detach a device. Returns 409 if referenced by a target."""
+    try:
+        # Check if any target references this device
+        refs = target_store.get_targets_for_device(device_id)
+        if refs:
+            names = ", ".join(t.name for t in refs)
+            raise HTTPException(
+                status_code=409,
+                detail=f"Device is referenced by target(s): {names}. Delete the target(s) first."
+            )
+
+        # Remove from manager
+        try:
+            await manager.remove_device(device_id)
+        except (ValueError, RuntimeError):
+            pass
+
+        # Delete from storage
+        store.delete_device(device_id)
+
+        fire_entity_event("device", "deleted", device_id)
+        logger.info(f"Deleted device {device_id}")
+
+    except HTTPException:
+        raise
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete device: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+# ===== DEVICE STATE (health only) =====
+
+@router.get("/api/v1/devices/{device_id}/state", response_model=DeviceStateResponse, tags=["Devices"])
+async def get_device_state(
+    device_id: str,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Get device health/connection state."""
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    try:
+        state = manager.get_device_health_dict(device_id)
+        state["device_type"] = device.device_type
+        return DeviceStateResponse(**state)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+@router.post("/api/v1/devices/{device_id}/ping", response_model=DeviceStateResponse, tags=["Devices"])
+async def ping_device(
+    device_id: str,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Force an immediate health check on a device."""
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    try:
+        state = await manager.force_device_health_check(device_id)
+        state["device_type"] = device.device_type
+        return DeviceStateResponse(**state)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+# ===== WLED BRIGHTNESS ENDPOINTS =====
+
+@router.get("/api/v1/devices/{device_id}/brightness", tags=["Settings"])
+async def get_device_brightness(
+    device_id: str,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Get current brightness from the device.
+
+    Uses a server-side cache to avoid polling the physical device on every
+    frontend request — hitting the ESP32 over WiFi in the async event loop
+    causes ~150 ms jitter in the processing loop.
+    """
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    if "brightness_control" not in get_device_capabilities(device.device_type):
+        raise HTTPException(status_code=400, detail=f"Brightness control is not supported for {device.device_type} devices")
+
+    # Return cached hardware brightness if available (updated by SET endpoint)
+    ds = manager.find_device_state(device_id)
+    if ds and ds.hardware_brightness is not None:
+        return {"brightness": ds.hardware_brightness}
+
+    try:
+        provider = get_provider(device.device_type)
+        bri = await provider.get_brightness(device.url)
+        # Cache the result so subsequent polls don't hit the device
+        if ds:
+            ds.hardware_brightness = bri
+        return {"brightness": bri}
+    except NotImplementedError:
+        # Provider has no hardware brightness; use software brightness
+        return {"brightness": device.software_brightness}
+    except Exception as e:
+        logger.error(f"Failed to get brightness for {device_id}: {e}")
+        raise HTTPException(status_code=502, detail=f"Failed to reach device: {e}")
+
+
+@router.put("/api/v1/devices/{device_id}/brightness", tags=["Settings"])
+async def set_device_brightness(
+    device_id: str,
+    body: dict,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Set brightness on the device."""
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    if "brightness_control" not in get_device_capabilities(device.device_type):
+        raise HTTPException(status_code=400, detail=f"Brightness control is not supported for {device.device_type} devices")
+
+    bri = body.get("brightness")
+    if bri is None or not isinstance(bri, int) or not 0 <= bri <= 255:
+        raise HTTPException(status_code=400, detail="brightness must be an integer 0-255")
+
+    try:
+        try:
+            provider = get_provider(device.device_type)
+            await provider.set_brightness(device.url, bri)
+        except NotImplementedError:
+            # Provider has no hardware brightness; use software brightness
+            store.update_device(device_id=device_id, software_brightness=bri)
+            ds = manager.find_device_state(device_id)
+            if ds:
+                ds.software_brightness = bri
+
+        # Update cached hardware brightness
+        ds = manager.find_device_state(device_id)
+        if ds:
+            ds.hardware_brightness = bri
+
+        return {"brightness": bri}
+    except Exception as e:
+        logger.error(f"Failed to set brightness for {device_id}: {e}")
+        raise HTTPException(status_code=502, detail=f"Failed to reach device: {e}")
+
+
+# ===== POWER ENDPOINTS =====
+
+@router.get("/api/v1/devices/{device_id}/power", tags=["Settings"])
+async def get_device_power(
+    device_id: str,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Get current power state from the device."""
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    if "power_control" not in get_device_capabilities(device.device_type):
+        raise HTTPException(status_code=400, detail=f"Power control is not supported for {device.device_type} devices")
+
+    try:
+        # Serial devices: use tracked state (no hardware query available)
+        ds = manager.find_device_state(device_id)
+        if device.device_type in ("adalight", "ambiled") and ds:
+            return {"on": ds.power_on}
+
+        provider = get_provider(device.device_type)
+        on = await provider.get_power(device.url)
+        return {"on": on}
+    except Exception as e:
+        logger.error(f"Failed to get power for {device_id}: {e}")
+        raise HTTPException(status_code=502, detail=f"Failed to reach device: {e}")
+
+
+@router.put("/api/v1/devices/{device_id}/power", tags=["Settings"])
+async def set_device_power(
+    device_id: str,
+    body: dict,
+    _auth: AuthRequired,
+    store: DeviceStore = Depends(get_device_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Turn device on or off."""
+    try:
+        device = store.get_device(device_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    if "power_control" not in get_device_capabilities(device.device_type):
+        raise HTTPException(status_code=400, detail=f"Power control is not supported for {device.device_type} devices")
+
+    on = body.get("on")
+    if on is None or not isinstance(on, bool):
+        raise HTTPException(status_code=400, detail="'on' must be a boolean")
+
+    try:
+        # For serial devices, use the cached idle client to avoid port conflicts
+        ds = manager.find_device_state(device_id)
+        if device.device_type in ("adalight", "ambiled") and ds:
+            if not on:
+                await manager.send_clear_pixels(device_id)
+            ds.power_on = on
+        else:
+            provider = get_provider(device.device_type)
+            await provider.set_power(
+                device.url, on,
+                led_count=device.led_count, baud_rate=device.baud_rate,
+            )
+        return {"on": on}
+    except Exception as e:
+        logger.error(f"Failed to set power for {device_id}: {e}")
+        raise HTTPException(status_code=502, detail=f"Failed to reach device: {e}")
+
+
+# ===== WEBSOCKET DEVICE STREAM =====
+
+@router.websocket("/api/v1/devices/{device_id}/ws")
+async def device_ws_stream(
+    websocket: WebSocket,
+    device_id: str,
+    token: str = Query(""),
+):
+    """WebSocket stream of LED pixel data for WS device type.
+
+    Wire format: [brightness_byte][R G B R G B ...]
+    Auth via ?token=<api_key>.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    if not verify_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    store = get_device_store()
+    try:
+        device = store.get_device(device_id)
+    except ValueError:
+        await websocket.close(code=4004, reason="Device not found")
+        return
+    if device.device_type != "ws":
+        await websocket.close(code=4003, reason="Device is not a WebSocket device")
+        return
+
+    await websocket.accept()
+
+    from wled_controller.core.devices.ws_client import get_ws_broadcaster
+
+    broadcaster = get_ws_broadcaster()
+    broadcaster.add_client(device_id, websocket)
+
+    try:
+        while True:
+            await websocket.receive_text()
+    except WebSocketDisconnect:
+        pass
+    finally:
+        broadcaster.remove_client(device_id, websocket)
+
+

server/src/wled_controller/api/routes/pattern_templates.py

@@ -0,0 +1,166 @@
+"""Pattern template routes: CRUD for rectangle layout templates."""
+
+from fastapi import APIRouter, HTTPException, Depends
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_pattern_template_store,
+    get_output_target_store,
+)
+from wled_controller.api.schemas.pattern_templates import (
+    PatternTemplateCreate,
+    PatternTemplateListResponse,
+    PatternTemplateResponse,
+    PatternTemplateUpdate,
+)
+from wled_controller.api.schemas.output_targets import KeyColorRectangleSchema
+from wled_controller.storage.key_colors_output_target import KeyColorRectangle
+from wled_controller.storage.pattern_template_store import PatternTemplateStore
+from wled_controller.storage.output_target_store import OutputTargetStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _pat_template_to_response(t) -> PatternTemplateResponse:
+    """Convert a PatternTemplate to its API response."""
+    return PatternTemplateResponse(
+        id=t.id,
+        name=t.name,
+        rectangles=[
+            KeyColorRectangleSchema(name=r.name, x=r.x, y=r.y, width=r.width, height=r.height)
+            for r in t.rectangles
+        ],
+        created_at=t.created_at,
+        updated_at=t.updated_at,
+        description=t.description,
+        tags=t.tags,
+    )
+
+
+@router.get("/api/v1/pattern-templates", response_model=PatternTemplateListResponse, tags=["Pattern Templates"])
+async def list_pattern_templates(
+    _auth: AuthRequired,
+    store: PatternTemplateStore = Depends(get_pattern_template_store),
+):
+    """List all pattern templates."""
+    try:
+        templates = store.get_all_templates()
+        responses = [_pat_template_to_response(t) for t in templates]
+        return PatternTemplateListResponse(templates=responses, count=len(responses))
+    except Exception as e:
+        logger.error(f"Failed to list pattern templates: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/pattern-templates", response_model=PatternTemplateResponse, tags=["Pattern Templates"], status_code=201)
+async def create_pattern_template(
+    data: PatternTemplateCreate,
+    _auth: AuthRequired,
+    store: PatternTemplateStore = Depends(get_pattern_template_store),
+):
+    """Create a new pattern template."""
+    try:
+        rectangles = [
+            KeyColorRectangle(name=r.name, x=r.x, y=r.y, width=r.width, height=r.height)
+            for r in data.rectangles
+        ]
+        template = store.create_template(
+            name=data.name,
+            rectangles=rectangles,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("pattern_template", "created", template.id)
+        return _pat_template_to_response(template)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to create pattern template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/pattern-templates/{template_id}", response_model=PatternTemplateResponse, tags=["Pattern Templates"])
+async def get_pattern_template(
+    template_id: str,
+    _auth: AuthRequired,
+    store: PatternTemplateStore = Depends(get_pattern_template_store),
+):
+    """Get pattern template by ID."""
+    try:
+        template = store.get_template(template_id)
+        return _pat_template_to_response(template)
+    except ValueError:
+        raise HTTPException(status_code=404, detail=f"Pattern template {template_id} not found")
+
+
+@router.put("/api/v1/pattern-templates/{template_id}", response_model=PatternTemplateResponse, tags=["Pattern Templates"])
+async def update_pattern_template(
+    template_id: str,
+    data: PatternTemplateUpdate,
+    _auth: AuthRequired,
+    store: PatternTemplateStore = Depends(get_pattern_template_store),
+):
+    """Update a pattern template."""
+    try:
+        rectangles = None
+        if data.rectangles is not None:
+            rectangles = [
+                KeyColorRectangle(name=r.name, x=r.x, y=r.y, width=r.width, height=r.height)
+                for r in data.rectangles
+            ]
+        template = store.update_template(
+            template_id=template_id,
+            name=data.name,
+            rectangles=rectangles,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("pattern_template", "updated", template_id)
+        return _pat_template_to_response(template)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update pattern template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/pattern-templates/{template_id}", status_code=204, tags=["Pattern Templates"])
+async def delete_pattern_template(
+    template_id: str,
+    _auth: AuthRequired,
+    store: PatternTemplateStore = Depends(get_pattern_template_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+):
+    """Delete a pattern template."""
+    try:
+        target_names = store.get_targets_referencing(template_id, target_store)
+        if target_names:
+            names = ", ".join(target_names)
+            raise HTTPException(
+                status_code=409,
+                detail=f"Cannot delete pattern template: it is referenced by target(s): {names}. "
+                       "Please reassign those targets before deleting.",
+            )
+        store.delete_template(template_id)
+        fire_entity_event("pattern_template", "deleted", template_id)
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete pattern template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))

server/src/wled_controller/api/routes/picture_sources.py

@@ -0,0 +1,749 @@
+"""Picture source routes."""
+
+import asyncio
+import base64
+import io
+import time
+
+import httpx
+import numpy as np
+from PIL import Image
+from fastapi import APIRouter, HTTPException, Depends, Query, WebSocket, WebSocketDisconnect
+from fastapi.responses import Response
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_picture_source_store,
+    get_output_target_store,
+    get_pp_template_store,
+    get_template_store,
+)
+from wled_controller.api.schemas.common import (
+    CaptureImage,
+    PerformanceMetrics,
+    TemplateTestResponse,
+)
+from wled_controller.api.schemas.picture_sources import (
+    ImageValidateRequest,
+    ImageValidateResponse,
+    PictureSourceCreate,
+    PictureSourceListResponse,
+    PictureSourceResponse,
+    PictureSourceTestRequest,
+    PictureSourceUpdate,
+)
+from wled_controller.core.capture_engines import EngineRegistry
+from wled_controller.core.filters import FilterRegistry, ImagePool
+from wled_controller.storage.output_target_store import OutputTargetStore
+from wled_controller.storage.template_store import TemplateStore
+from wled_controller.storage.postprocessing_template_store import PostprocessingTemplateStore
+from wled_controller.storage.picture_source_store import PictureSourceStore
+from wled_controller.storage.picture_source import ScreenCapturePictureSource, StaticImagePictureSource, VideoCaptureSource
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _stream_to_response(s) -> PictureSourceResponse:
+    """Convert a PictureSource to its API response."""
+    return PictureSourceResponse(
+        id=s.id,
+        name=s.name,
+        stream_type=s.stream_type,
+        display_index=getattr(s, "display_index", None),
+        capture_template_id=getattr(s, "capture_template_id", None),
+        target_fps=getattr(s, "target_fps", None),
+        source_stream_id=getattr(s, "source_stream_id", None),
+        postprocessing_template_id=getattr(s, "postprocessing_template_id", None),
+        image_source=getattr(s, "image_source", None),
+        created_at=s.created_at,
+        updated_at=s.updated_at,
+        description=s.description,
+        tags=s.tags,
+        # Video fields
+        url=getattr(s, "url", None),
+        loop=getattr(s, "loop", None),
+        playback_speed=getattr(s, "playback_speed", None),
+        start_time=getattr(s, "start_time", None),
+        end_time=getattr(s, "end_time", None),
+        resolution_limit=getattr(s, "resolution_limit", None),
+        clock_id=getattr(s, "clock_id", None),
+    )
+
+
+@router.get("/api/v1/picture-sources", response_model=PictureSourceListResponse, tags=["Picture Sources"])
+async def list_picture_sources(
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+):
+    """List all picture sources."""
+    try:
+        streams = store.get_all_streams()
+        responses = [_stream_to_response(s) for s in streams]
+        return PictureSourceListResponse(streams=responses, count=len(responses))
+    except Exception as e:
+        logger.error(f"Failed to list picture sources: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/picture-sources/validate-image", response_model=ImageValidateResponse, tags=["Picture Sources"])
+async def validate_image(
+    data: ImageValidateRequest,
+    _auth: AuthRequired,
+):
+    """Validate an image source (URL or file path) and return a preview thumbnail."""
+    try:
+        from pathlib import Path
+
+        source = data.image_source.strip()
+        if not source:
+            return ImageValidateResponse(valid=False, error="Image source is empty")
+
+        if source.startswith(("http://", "https://")):
+            async with httpx.AsyncClient(timeout=15, follow_redirects=True) as client:
+                response = await client.get(source)
+                response.raise_for_status()
+                img_bytes = response.content
+        else:
+            path = Path(source)
+            if not path.exists():
+                return ImageValidateResponse(valid=False, error=f"File not found: {source}")
+            img_bytes = path
+
+        def _process_image(src):
+            pil_image = Image.open(io.BytesIO(src) if isinstance(src, bytes) else src)
+            pil_image = pil_image.convert("RGB")
+            width, height = pil_image.size
+            thumb = pil_image.copy()
+            thumb.thumbnail((320, 320), Image.Resampling.LANCZOS)
+            buf = io.BytesIO()
+            thumb.save(buf, format="JPEG", quality=80)
+            buf.seek(0)
+            preview = f"data:image/jpeg;base64,{base64.b64encode(buf.getvalue()).decode()}"
+            return width, height, preview
+
+        width, height, preview = await asyncio.to_thread(_process_image, img_bytes)
+
+        return ImageValidateResponse(
+            valid=True, width=width, height=height, preview=preview
+        )
+
+    except httpx.HTTPStatusError as e:
+        return ImageValidateResponse(valid=False, error=f"HTTP {e.response.status_code}: {e.response.reason_phrase}")
+    except httpx.RequestError as e:
+        return ImageValidateResponse(valid=False, error=f"Request failed: {e}")
+    except Exception as e:
+        return ImageValidateResponse(valid=False, error=str(e))
+
+
+@router.get("/api/v1/picture-sources/full-image", tags=["Picture Sources"])
+async def get_full_image(
+    _auth: AuthRequired,
+    source: str = Query(..., description="Image URL or local file path"),
+):
+    """Serve the full-resolution image for lightbox preview."""
+    from pathlib import Path
+
+    try:
+        if source.startswith(("http://", "https://")):
+            async with httpx.AsyncClient(timeout=15, follow_redirects=True) as client:
+                response = await client.get(source)
+                response.raise_for_status()
+                img_bytes = response.content
+        else:
+            path = Path(source)
+            if not path.exists():
+                raise HTTPException(status_code=404, detail="File not found")
+            img_bytes = path
+
+        def _encode_full(src):
+            pil_image = Image.open(io.BytesIO(src) if isinstance(src, bytes) else src)
+            pil_image = pil_image.convert("RGB")
+            buf = io.BytesIO()
+            pil_image.save(buf, format="JPEG", quality=90)
+            return buf.getvalue()
+
+        jpeg_bytes = await asyncio.to_thread(_encode_full, img_bytes)
+        return Response(content=jpeg_bytes, media_type="image/jpeg")
+
+    except HTTPException:
+        raise
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.post("/api/v1/picture-sources", response_model=PictureSourceResponse, tags=["Picture Sources"], status_code=201)
+async def create_picture_source(
+    data: PictureSourceCreate,
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+    template_store: TemplateStore = Depends(get_template_store),
+    pp_store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+):
+    """Create a new picture source."""
+    try:
+        # Validate referenced entities
+        if data.stream_type == "raw" and data.capture_template_id:
+            try:
+                template_store.get_template(data.capture_template_id)
+            except ValueError:
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Capture template not found: {data.capture_template_id}",
+                )
+
+        if data.stream_type == "processed" and data.postprocessing_template_id:
+            try:
+                pp_store.get_template(data.postprocessing_template_id)
+            except ValueError:
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Postprocessing template not found: {data.postprocessing_template_id}",
+                )
+
+        stream = store.create_stream(
+            name=data.name,
+            stream_type=data.stream_type,
+            display_index=data.display_index,
+            capture_template_id=data.capture_template_id,
+            target_fps=data.target_fps,
+            source_stream_id=data.source_stream_id,
+            postprocessing_template_id=data.postprocessing_template_id,
+            image_source=data.image_source,
+            description=data.description,
+            tags=data.tags,
+            # Video fields
+            url=data.url,
+            loop=data.loop,
+            playback_speed=data.playback_speed,
+            start_time=data.start_time,
+            end_time=data.end_time,
+            resolution_limit=data.resolution_limit,
+            clock_id=data.clock_id,
+        )
+        fire_entity_event("picture_source", "created", stream.id)
+        return _stream_to_response(stream)
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to create picture source: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/picture-sources/{stream_id}", response_model=PictureSourceResponse, tags=["Picture Sources"])
+async def get_picture_source(
+    stream_id: str,
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+):
+    """Get picture source by ID."""
+    try:
+        stream = store.get_stream(stream_id)
+        return _stream_to_response(stream)
+    except ValueError:
+        raise HTTPException(status_code=404, detail=f"Picture source {stream_id} not found")
+
+
+@router.put("/api/v1/picture-sources/{stream_id}", response_model=PictureSourceResponse, tags=["Picture Sources"])
+async def update_picture_source(
+    stream_id: str,
+    data: PictureSourceUpdate,
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+):
+    """Update a picture source."""
+    try:
+        stream = store.update_stream(
+            stream_id=stream_id,
+            name=data.name,
+            display_index=data.display_index,
+            capture_template_id=data.capture_template_id,
+            target_fps=data.target_fps,
+            source_stream_id=data.source_stream_id,
+            postprocessing_template_id=data.postprocessing_template_id,
+            image_source=data.image_source,
+            description=data.description,
+            tags=data.tags,
+            # Video fields
+            url=data.url,
+            loop=data.loop,
+            playback_speed=data.playback_speed,
+            start_time=data.start_time,
+            end_time=data.end_time,
+            resolution_limit=data.resolution_limit,
+            clock_id=data.clock_id,
+        )
+        fire_entity_event("picture_source", "updated", stream_id)
+        return _stream_to_response(stream)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update picture source: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/picture-sources/{stream_id}", status_code=204, tags=["Picture Sources"])
+async def delete_picture_source(
+    stream_id: str,
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+):
+    """Delete a picture source."""
+    try:
+        # Check if any target references this stream
+        target_names = store.get_targets_referencing(stream_id, target_store)
+        if target_names:
+            names = ", ".join(target_names)
+            raise HTTPException(
+                status_code=409,
+                detail=f"Cannot delete picture source: it is assigned to target(s): {names}. "
+                       "Please reassign those targets before deleting.",
+            )
+        store.delete_stream(stream_id)
+        fire_entity_event("picture_source", "deleted", stream_id)
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete picture source: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/picture-sources/{stream_id}/thumbnail", tags=["Picture Sources"])
+async def get_video_thumbnail(
+    stream_id: str,
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+):
+    """Get a thumbnail for a video picture source (first frame)."""
+    import base64
+    from io import BytesIO
+
+    from PIL import Image
+
+    from wled_controller.core.processing.video_stream import extract_thumbnail
+    from wled_controller.storage.picture_source import VideoCaptureSource
+
+    try:
+        source = store.get_stream(stream_id)
+        if not isinstance(source, VideoCaptureSource):
+            raise HTTPException(status_code=400, detail="Not a video source")
+
+        frame = await asyncio.get_event_loop().run_in_executor(
+            None, extract_thumbnail, source.url, source.resolution_limit
+        )
+        if frame is None:
+            raise HTTPException(status_code=404, detail="Could not extract thumbnail")
+
+        # Encode as JPEG
+        pil_img = Image.fromarray(frame)
+        # Resize to max 320px wide for thumbnail
+        if pil_img.width > 320:
+            ratio = 320 / pil_img.width
+            pil_img = pil_img.resize((320, int(pil_img.height * ratio)), Image.LANCZOS)
+
+        buf = BytesIO()
+        pil_img.save(buf, format="JPEG", quality=80)
+        b64 = base64.b64encode(buf.getvalue()).decode()
+
+        return {"thumbnail": f"data:image/jpeg;base64,{b64}", "width": pil_img.width, "height": pil_img.height}
+
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"Failed to extract video thumbnail: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/picture-sources/{stream_id}/test", response_model=TemplateTestResponse, tags=["Picture Sources"])
+async def test_picture_source(
+    stream_id: str,
+    test_request: PictureSourceTestRequest,
+    _auth: AuthRequired,
+    store: PictureSourceStore = Depends(get_picture_source_store),
+    template_store: TemplateStore = Depends(get_template_store),
+    pp_store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+):
+    """Test a picture source by resolving its chain and running a capture test.
+
+    Resolves the stream chain to the raw stream, captures frames,
+    and returns preview image + performance metrics.
+    For processed streams, applies postprocessing (gamma, saturation, brightness)
+    to the preview image.
+    """
+    stream = None
+    try:
+        # Resolve stream chain
+        try:
+            chain = store.resolve_stream_chain(stream_id)
+        except EntityNotFoundError as e:
+            raise HTTPException(status_code=404, detail=str(e))
+
+        except ValueError as e:
+            raise HTTPException(status_code=400, detail=str(e))
+
+        raw_stream = chain["raw_stream"]
+
+        if isinstance(raw_stream, StaticImagePictureSource):
+            # Static image stream: load image directly, no engine needed
+            from pathlib import Path
+
+            source = raw_stream.image_source
+            start_time = time.perf_counter()
+
+            if source.startswith(("http://", "https://")):
+                async with httpx.AsyncClient(timeout=15, follow_redirects=True) as client:
+                    resp = await client.get(source)
+                    resp.raise_for_status()
+                    pil_image = Image.open(io.BytesIO(resp.content)).convert("RGB")
+            else:
+                path = Path(source)
+                if not path.exists():
+                    raise HTTPException(status_code=400, detail=f"Image file not found: {source}")
+                pil_image = await asyncio.to_thread(lambda: Image.open(path).convert("RGB"))
+
+            actual_duration = time.perf_counter() - start_time
+            frame_count = 1
+            total_capture_time = actual_duration
+
+        elif isinstance(raw_stream, ScreenCapturePictureSource):
+            # Screen capture stream: use engine
+            try:
+                capture_template = template_store.get_template(raw_stream.capture_template_id)
+            except ValueError:
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Capture template not found: {raw_stream.capture_template_id}",
+                )
+
+            display_index = raw_stream.display_index
+
+            if capture_template.engine_type not in EngineRegistry.get_available_engines():
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Engine '{capture_template.engine_type}' is not available on this system",
+                )
+
+            stream = EngineRegistry.create_stream(
+                capture_template.engine_type, display_index, capture_template.engine_config
+            )
+            stream.initialize()
+
+            frame_count = 0
+            total_capture_time = 0.0
+            last_frame = None
+            start_time = time.perf_counter()
+
+            if test_request.capture_duration == 0:
+                # Single frame capture
+                logger.info(f"Capturing single frame for {stream_id}")
+                capture_start = time.perf_counter()
+                screen_capture = stream.capture_frame()
+                capture_elapsed = time.perf_counter() - capture_start
+                if screen_capture is not None:
+                    total_capture_time = capture_elapsed
+                    frame_count = 1
+                    last_frame = screen_capture
+            else:
+                logger.info(f"Starting {test_request.capture_duration}s stream test for {stream_id}")
+                end_time = start_time + test_request.capture_duration
+                while time.perf_counter() < end_time:
+                    capture_start = time.perf_counter()
+                    screen_capture = stream.capture_frame()
+                    capture_elapsed = time.perf_counter() - capture_start
+                    if screen_capture is None:
+                        continue
+                    total_capture_time += capture_elapsed
+                    frame_count += 1
+                    last_frame = screen_capture
+
+            actual_duration = time.perf_counter() - start_time
+
+            if last_frame is None:
+                raise RuntimeError("No frames captured during test")
+
+            if isinstance(last_frame.image, np.ndarray):
+                pil_image = Image.fromarray(last_frame.image)
+            else:
+                raise ValueError("Unexpected image format from engine")
+
+        # Create thumbnail + encode (CPU-bound — run in thread)
+        pp_template_ids = chain["postprocessing_template_ids"]
+        flat_filters = None
+        if pp_template_ids:
+            try:
+                pp_template = pp_store.get_template(pp_template_ids[0])
+                flat_filters = pp_store.resolve_filter_instances(pp_template.filters) or None
+            except ValueError:
+                logger.warning(f"PP template {pp_template_ids[0]} not found, skipping postprocessing preview")
+
+        def _create_thumbnails_and_encode(pil_img, filters):
+            thumbnail_w = 640
+            aspect_ratio = pil_img.height / pil_img.width
+            thumbnail_h = int(thumbnail_w * aspect_ratio)
+            thumb = pil_img.copy()
+            thumb.thumbnail((thumbnail_w, thumbnail_h), Image.Resampling.LANCZOS)
+
+            if filters:
+                pool = ImagePool()
+                def apply_filters(img):
+                    arr = np.array(img)
+                    for fi in filters:
+                        f = FilterRegistry.create_instance(fi.filter_id, fi.options)
+                        result = f.process_image(arr, pool)
+                        if result is not None:
+                            arr = result
+                    return Image.fromarray(arr)
+                thumb = apply_filters(thumb)
+                pil_img = apply_filters(pil_img)
+
+            img_buffer = io.BytesIO()
+            thumb.save(img_buffer, format='JPEG', quality=85)
+            thumb_b64 = base64.b64encode(img_buffer.getvalue()).decode('utf-8')
+
+            full_buffer = io.BytesIO()
+            pil_img.save(full_buffer, format='JPEG', quality=90)
+            full_b64 = base64.b64encode(full_buffer.getvalue()).decode('utf-8')
+
+            return thumbnail_w, thumbnail_h, thumb_b64, full_b64
+
+        thumbnail_width, thumbnail_height, thumbnail_b64, full_b64 = await asyncio.to_thread(
+            _create_thumbnails_and_encode, pil_image, flat_filters
+        )
+        thumbnail_data_uri = f"data:image/jpeg;base64,{thumbnail_b64}"
+        full_data_uri = f"data:image/jpeg;base64,{full_b64}"
+
+        actual_fps = frame_count / actual_duration if actual_duration > 0 else 0
+        avg_capture_time_ms = (total_capture_time / frame_count * 1000) if frame_count > 0 else 0
+        width, height = pil_image.size
+
+        return TemplateTestResponse(
+            full_capture=CaptureImage(
+                image=thumbnail_data_uri,
+                full_image=full_data_uri,
+                width=width,
+                height=height,
+                thumbnail_width=thumbnail_width,
+                thumbnail_height=thumbnail_height,
+            ),
+            border_extraction=None,
+            performance=PerformanceMetrics(
+                capture_duration_s=actual_duration,
+                frame_count=frame_count,
+                actual_fps=actual_fps,
+                avg_capture_time_ms=avg_capture_time_ms,
+            ),
+        )
+
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except RuntimeError as e:
+        raise HTTPException(status_code=500, detail=f"Engine error: {str(e)}")
+    except Exception as e:
+        logger.error(f"Failed to test picture source: {e}", exc_info=True)
+        raise HTTPException(status_code=500, detail=str(e))
+    finally:
+        if stream:
+            try:
+                stream.cleanup()
+            except Exception as e:
+                logger.error(f"Error cleaning up test stream: {e}")
+
+
+# ===== REAL-TIME PICTURE SOURCE TEST WEBSOCKET =====
+
+
+@router.websocket("/api/v1/picture-sources/{stream_id}/test/ws")
+async def test_picture_source_ws(
+    websocket: WebSocket,
+    stream_id: str,
+    token: str = Query(""),
+    duration: float = Query(5.0),
+    preview_width: int = Query(0),
+):
+    """WebSocket for picture source test with intermediate frame previews."""
+    from wled_controller.api.routes._test_helpers import (
+        authenticate_ws_token,
+        stream_capture_test,
+    )
+    from wled_controller.api.dependencies import (
+        get_picture_source_store as _get_ps_store,
+        get_template_store as _get_t_store,
+        get_pp_template_store as _get_pp_store,
+    )
+
+    if not authenticate_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    store = _get_ps_store()
+    template_store = _get_t_store()
+    pp_store = _get_pp_store()
+
+    # Resolve stream chain
+    try:
+        chain = store.resolve_stream_chain(stream_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    raw_stream = chain["raw_stream"]
+
+    # Static images don't benefit from streaming — reject gracefully
+    if isinstance(raw_stream, StaticImagePictureSource):
+        await websocket.close(code=4003, reason="Static image streams don't support live test")
+        return
+
+    # Video sources: use VideoCaptureLiveStream for test preview
+    if isinstance(raw_stream, VideoCaptureSource):
+        from wled_controller.core.processing.video_stream import VideoCaptureLiveStream
+
+        await websocket.accept()
+        logger.info(f"Video source test WS connected for {stream_id} ({duration}s)")
+
+        video_stream = VideoCaptureLiveStream(
+            url=raw_stream.url,
+            loop=raw_stream.loop,
+            playback_speed=raw_stream.playback_speed,
+            start_time=raw_stream.start_time,
+            end_time=raw_stream.end_time,
+            resolution_limit=raw_stream.resolution_limit,
+            target_fps=raw_stream.target_fps,
+        )
+
+        def _encode_video_frame(image, pw):
+            """Encode numpy RGB image as JPEG base64 data URI."""
+            from PIL import Image as PILImage
+            pil = PILImage.fromarray(image)
+            if pw and pil.width > pw:
+                ratio = pw / pil.width
+                pil = pil.resize((pw, int(pil.height * ratio)), PILImage.LANCZOS)
+            buf = io.BytesIO()
+            pil.save(buf, format="JPEG", quality=80)
+            b64 = base64.b64encode(buf.getvalue()).decode()
+            return f"data:image/jpeg;base64,{b64}", pil.width, pil.height
+
+        try:
+            await asyncio.get_event_loop().run_in_executor(None, video_stream.start)
+            import time as _time
+            fps = min(raw_stream.target_fps or 30, 30)
+            frame_time = 1.0 / fps
+            end_at = _time.monotonic() + duration
+            frame_count = 0
+            last_frame = None
+            while _time.monotonic() < end_at:
+                frame = video_stream.get_latest_frame()
+                if frame is not None and frame.image is not None and frame is not last_frame:
+                    last_frame = frame
+                    frame_count += 1
+                    thumb, w, h = await asyncio.get_event_loop().run_in_executor(
+                        None, _encode_video_frame, frame.image, preview_width or None,
+                    )
+                    elapsed = duration - (end_at - _time.monotonic())
+                    await websocket.send_json({
+                        "type": "frame",
+                        "thumbnail": thumb,
+                        "width": w, "height": h,
+                        "elapsed": round(elapsed, 1),
+                        "frame_count": frame_count,
+                    })
+                await asyncio.sleep(frame_time)
+            # Send final result
+            if last_frame is not None:
+                full_img, fw, fh = await asyncio.get_event_loop().run_in_executor(
+                    None, _encode_video_frame, last_frame.image, None,
+                )
+                await websocket.send_json({
+                    "type": "result",
+                    "full_image": full_img,
+                    "width": fw, "height": fh,
+                    "total_frames": frame_count,
+                    "duration": duration,
+                    "avg_fps": round(frame_count / max(duration, 0.001), 1),
+                })
+        except WebSocketDisconnect:
+            pass
+        except Exception as e:
+            logger.error(f"Video source test WS error for {stream_id}: {e}")
+            try:
+                await websocket.send_json({"type": "error", "detail": str(e)})
+            except Exception:
+                pass
+        finally:
+            video_stream.stop()
+            logger.info(f"Video source test WS disconnected for {stream_id}")
+        return
+
+    if not isinstance(raw_stream, ScreenCapturePictureSource):
+        await websocket.close(code=4003, reason="Unsupported stream type for live test")
+        return
+
+    # Create capture engine
+    try:
+        capture_template = template_store.get_template(raw_stream.capture_template_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    if capture_template.engine_type not in EngineRegistry.get_available_engines():
+        await websocket.close(code=4003, reason=f"Engine '{capture_template.engine_type}' not available")
+        return
+
+    # Resolve postprocessing filters (if any)
+    pp_filters = None
+    pp_template_ids = chain.get("postprocessing_template_ids", [])
+    if pp_template_ids:
+        try:
+            pp_template = pp_store.get_template(pp_template_ids[0])
+            pp_filters = pp_store.resolve_filter_instances(pp_template.filters) or None
+        except ValueError:
+            pass
+
+    # Engine factory — creates + initializes engine inside the capture thread
+    # to avoid thread-affinity issues (e.g. MSS uses thread-local state)
+    _engine_type = capture_template.engine_type
+    _display_index = raw_stream.display_index
+    _engine_config = capture_template.engine_config
+
+    def engine_factory():
+        s = EngineRegistry.create_stream(_engine_type, _display_index, _engine_config)
+        s.initialize()
+        return s
+
+    await websocket.accept()
+    logger.info(f"Picture source test WS connected for {stream_id} ({duration}s)")
+
+    try:
+        await stream_capture_test(
+            websocket, engine_factory, duration,
+            pp_filters=pp_filters,
+            preview_width=preview_width or None,
+        )
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"Picture source test WS error for {stream_id}: {e}")
+    finally:
+        logger.info(f"Picture source test WS disconnected for {stream_id}")

server/src/wled_controller/api/routes/postprocessing.py

@@ -0,0 +1,453 @@
+"""Postprocessing template routes."""
+
+import base64
+import io
+import time
+
+import httpx
+import numpy as np
+from PIL import Image
+from fastapi import APIRouter, HTTPException, Depends, Query, WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_picture_source_store,
+    get_pp_template_store,
+    get_template_store,
+)
+from wled_controller.api.schemas.common import (
+    CaptureImage,
+    PerformanceMetrics,
+    TemplateTestResponse,
+)
+from wled_controller.api.schemas.filters import FilterInstanceSchema
+from wled_controller.api.schemas.postprocessing import (
+    PostprocessingTemplateCreate,
+    PostprocessingTemplateListResponse,
+    PostprocessingTemplateResponse,
+    PostprocessingTemplateUpdate,
+    PPTemplateTestRequest,
+)
+from wled_controller.core.capture_engines import EngineRegistry
+from wled_controller.core.filters import FilterRegistry, FilterInstance, ImagePool
+from wled_controller.storage.template_store import TemplateStore
+from wled_controller.storage.postprocessing_template_store import PostprocessingTemplateStore
+from wled_controller.storage.picture_source_store import PictureSourceStore
+from wled_controller.storage.picture_source import ScreenCapturePictureSource, StaticImagePictureSource
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _pp_template_to_response(t) -> PostprocessingTemplateResponse:
+    """Convert a PostprocessingTemplate to its API response."""
+    return PostprocessingTemplateResponse(
+        id=t.id,
+        name=t.name,
+        filters=[FilterInstanceSchema(filter_id=f.filter_id, options=f.options) for f in t.filters],
+        created_at=t.created_at,
+        updated_at=t.updated_at,
+        description=t.description,
+        tags=t.tags,
+    )
+
+
+@router.get("/api/v1/postprocessing-templates", response_model=PostprocessingTemplateListResponse, tags=["Postprocessing Templates"])
+async def list_pp_templates(
+    _auth: AuthRequired,
+    store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+):
+    """List all postprocessing templates."""
+    templates = store.get_all_templates()
+    responses = [_pp_template_to_response(t) for t in templates]
+    return PostprocessingTemplateListResponse(templates=responses, count=len(responses))
+
+
+@router.post("/api/v1/postprocessing-templates", response_model=PostprocessingTemplateResponse, tags=["Postprocessing Templates"], status_code=201)
+async def create_pp_template(
+    data: PostprocessingTemplateCreate,
+    _auth: AuthRequired,
+    store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+):
+    """Create a new postprocessing template."""
+    try:
+        filters = [FilterInstance(f.filter_id, f.options) for f in data.filters]
+        template = store.create_template(
+            name=data.name,
+            filters=filters,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("pp_template", "created", template.id)
+        return _pp_template_to_response(template)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to create postprocessing template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/postprocessing-templates/{template_id}", response_model=PostprocessingTemplateResponse, tags=["Postprocessing Templates"])
+async def get_pp_template(
+    template_id: str,
+    _auth: AuthRequired,
+    store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+):
+    """Get postprocessing template by ID."""
+    try:
+        template = store.get_template(template_id)
+        return _pp_template_to_response(template)
+    except ValueError:
+        raise HTTPException(status_code=404, detail=f"Postprocessing template {template_id} not found")
+
+
+@router.put("/api/v1/postprocessing-templates/{template_id}", response_model=PostprocessingTemplateResponse, tags=["Postprocessing Templates"])
+async def update_pp_template(
+    template_id: str,
+    data: PostprocessingTemplateUpdate,
+    _auth: AuthRequired,
+    store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+):
+    """Update a postprocessing template."""
+    try:
+        filters = [FilterInstance(f.filter_id, f.options) for f in data.filters] if data.filters is not None else None
+        template = store.update_template(
+            template_id=template_id,
+            name=data.name,
+            filters=filters,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("pp_template", "updated", template_id)
+        return _pp_template_to_response(template)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update postprocessing template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/postprocessing-templates/{template_id}", status_code=204, tags=["Postprocessing Templates"])
+async def delete_pp_template(
+    template_id: str,
+    _auth: AuthRequired,
+    store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+    stream_store: PictureSourceStore = Depends(get_picture_source_store),
+):
+    """Delete a postprocessing template."""
+    try:
+        # Check if any picture source references this template
+        source_names = store.get_sources_referencing(template_id, stream_store)
+        if source_names:
+            names = ", ".join(source_names)
+            raise HTTPException(
+                status_code=409,
+                detail=f"Cannot delete postprocessing template: it is referenced by picture source(s): {names}. "
+                       "Please reassign those streams before deleting.",
+            )
+        store.delete_template(template_id)
+        fire_entity_event("pp_template", "deleted", template_id)
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete postprocessing template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/postprocessing-templates/{template_id}/test", response_model=TemplateTestResponse, tags=["Postprocessing Templates"])
+async def test_pp_template(
+    template_id: str,
+    test_request: PPTemplateTestRequest,
+    _auth: AuthRequired,
+    pp_store: PostprocessingTemplateStore = Depends(get_pp_template_store),
+    stream_store: PictureSourceStore = Depends(get_picture_source_store),
+    template_store: TemplateStore = Depends(get_template_store),
+):
+    """Test a postprocessing template by capturing from a source stream and applying filters."""
+    stream = None
+    try:
+        # Get the PP template
+        try:
+            pp_template = pp_store.get_template(template_id)
+        except ValueError as e:
+            raise HTTPException(status_code=404, detail=str(e))
+
+        # Resolve source stream chain to get the raw stream
+        try:
+            chain = stream_store.resolve_stream_chain(test_request.source_stream_id)
+        except EntityNotFoundError as e:
+            raise HTTPException(status_code=404, detail=str(e))
+
+        except ValueError as e:
+            raise HTTPException(status_code=400, detail=str(e))
+
+        raw_stream = chain["raw_stream"]
+
+        if isinstance(raw_stream, StaticImagePictureSource):
+            # Static image: load directly
+            from pathlib import Path
+
+            source = raw_stream.image_source
+            start_time = time.perf_counter()
+
+            if source.startswith(("http://", "https://")):
+                async with httpx.AsyncClient(timeout=15, follow_redirects=True) as client:
+                    resp = await client.get(source)
+                    resp.raise_for_status()
+                    pil_image = Image.open(io.BytesIO(resp.content)).convert("RGB")
+            else:
+                path = Path(source)
+                if not path.exists():
+                    raise HTTPException(status_code=400, detail=f"Image file not found: {source}")
+                pil_image = Image.open(path).convert("RGB")
+
+            actual_duration = time.perf_counter() - start_time
+            frame_count = 1
+            total_capture_time = actual_duration
+        elif isinstance(raw_stream, ScreenCapturePictureSource):
+            # Screen capture stream: use engine
+            try:
+                capture_template = template_store.get_template(raw_stream.capture_template_id)
+            except ValueError:
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Capture template not found: {raw_stream.capture_template_id}",
+                )
+
+            display_index = raw_stream.display_index
+
+            if capture_template.engine_type not in EngineRegistry.get_available_engines():
+                raise HTTPException(
+                    status_code=400,
+                    detail=f"Engine '{capture_template.engine_type}' is not available on this system",
+                )
+
+            stream = EngineRegistry.create_stream(
+                capture_template.engine_type, display_index, capture_template.engine_config
+            )
+            stream.initialize()
+
+            logger.info(f"Starting {test_request.capture_duration}s PP template test for {template_id} using stream {test_request.source_stream_id}")
+
+            frame_count = 0
+            total_capture_time = 0.0
+            last_frame = None
+
+            start_time = time.perf_counter()
+            end_time = start_time + test_request.capture_duration
+
+            while time.perf_counter() < end_time:
+                capture_start = time.perf_counter()
+                screen_capture = stream.capture_frame()
+                capture_elapsed = time.perf_counter() - capture_start
+
+                if screen_capture is None:
+                    continue
+
+                total_capture_time += capture_elapsed
+                frame_count += 1
+                last_frame = screen_capture
+
+            actual_duration = time.perf_counter() - start_time
+
+            if last_frame is None:
+                raise RuntimeError("No frames captured during test")
+
+            if isinstance(last_frame.image, np.ndarray):
+                pil_image = Image.fromarray(last_frame.image)
+            else:
+                raise ValueError("Unexpected image format from engine")
+
+        # Create thumbnail
+        thumbnail_width = 640
+        aspect_ratio = pil_image.height / pil_image.width
+        thumbnail_height = int(thumbnail_width * aspect_ratio)
+        thumbnail = pil_image.copy()
+        thumbnail.thumbnail((thumbnail_width, thumbnail_height), Image.Resampling.LANCZOS)
+
+        # Apply postprocessing filters (expand filter_template references)
+        flat_filters = pp_store.resolve_filter_instances(pp_template.filters)
+        if flat_filters:
+            pool = ImagePool()
+
+            def apply_filters(img):
+                arr = np.array(img)
+                for fi in flat_filters:
+                    f = FilterRegistry.create_instance(fi.filter_id, fi.options)
+                    result = f.process_image(arr, pool)
+                    if result is not None:
+                        arr = result
+                return Image.fromarray(arr)
+
+            thumbnail = apply_filters(thumbnail)
+            pil_image = apply_filters(pil_image)
+
+        # Encode thumbnail
+        img_buffer = io.BytesIO()
+        thumbnail.save(img_buffer, format='JPEG', quality=85)
+        img_buffer.seek(0)
+        thumbnail_b64 = base64.b64encode(img_buffer.getvalue()).decode('utf-8')
+        thumbnail_data_uri = f"data:image/jpeg;base64,{thumbnail_b64}"
+
+        # Encode full-resolution image
+        full_buffer = io.BytesIO()
+        pil_image.save(full_buffer, format='JPEG', quality=90)
+        full_buffer.seek(0)
+        full_b64 = base64.b64encode(full_buffer.getvalue()).decode('utf-8')
+        full_data_uri = f"data:image/jpeg;base64,{full_b64}"
+
+        actual_fps = frame_count / actual_duration if actual_duration > 0 else 0
+        avg_capture_time_ms = (total_capture_time / frame_count * 1000) if frame_count > 0 else 0
+        width, height = pil_image.size
+        thumb_w, thumb_h = thumbnail.size
+
+        return TemplateTestResponse(
+            full_capture=CaptureImage(
+                image=thumbnail_data_uri,
+                full_image=full_data_uri,
+                width=width,
+                height=height,
+                thumbnail_width=thumb_w,
+                thumbnail_height=thumb_h,
+            ),
+            border_extraction=None,
+            performance=PerformanceMetrics(
+                capture_duration_s=actual_duration,
+                frame_count=frame_count,
+                actual_fps=actual_fps,
+                avg_capture_time_ms=avg_capture_time_ms,
+            ),
+        )
+
+    except HTTPException:
+        raise
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Postprocessing template test failed: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+    finally:
+        if stream:
+            try:
+                stream.cleanup()
+            except Exception:
+                pass
+
+
+# ===== REAL-TIME PP TEMPLATE TEST WEBSOCKET =====
+
+
+@router.websocket("/api/v1/postprocessing-templates/{template_id}/test/ws")
+async def test_pp_template_ws(
+    websocket: WebSocket,
+    template_id: str,
+    token: str = Query(""),
+    duration: float = Query(5.0),
+    source_stream_id: str = Query(""),
+    preview_width: int = Query(0),
+):
+    """WebSocket for PP template test with intermediate frame previews."""
+    from wled_controller.api.routes._test_helpers import (
+        authenticate_ws_token,
+        stream_capture_test,
+    )
+    from wled_controller.api.dependencies import (
+        get_picture_source_store as _get_ps_store,
+        get_template_store as _get_t_store,
+        get_pp_template_store as _get_pp_store,
+    )
+
+    if not authenticate_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    if not source_stream_id:
+        await websocket.close(code=4003, reason="source_stream_id is required")
+        return
+
+    pp_store = _get_pp_store()
+    stream_store = _get_ps_store()
+    template_store = _get_t_store()
+
+    # Get PP template
+    try:
+        pp_template = pp_store.get_template(template_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    # Resolve source stream chain
+    try:
+        chain = stream_store.resolve_stream_chain(source_stream_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    raw_stream = chain["raw_stream"]
+
+    if isinstance(raw_stream, StaticImagePictureSource):
+        await websocket.close(code=4003, reason="Static image streams don't support live test")
+        return
+
+    if not isinstance(raw_stream, ScreenCapturePictureSource):
+        await websocket.close(code=4003, reason="Unsupported stream type for live test")
+        return
+
+    # Create capture engine
+    try:
+        capture_template = template_store.get_template(raw_stream.capture_template_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    if capture_template.engine_type not in EngineRegistry.get_available_engines():
+        await websocket.close(code=4003, reason=f"Engine '{capture_template.engine_type}' not available")
+        return
+
+    # Resolve PP filters
+    pp_filters = pp_store.resolve_filter_instances(pp_template.filters) or None
+
+    # Engine factory — creates + initializes engine inside the capture thread
+    # to avoid thread-affinity issues (e.g. MSS uses thread-local state)
+    _engine_type = capture_template.engine_type
+    _display_index = raw_stream.display_index
+    _engine_config = capture_template.engine_config
+
+    def engine_factory():
+        s = EngineRegistry.create_stream(_engine_type, _display_index, _engine_config)
+        s.initialize()
+        return s
+
+    await websocket.accept()
+    logger.info(f"PP template test WS connected for {template_id} ({duration}s)")
+
+    try:
+        await stream_capture_test(
+            websocket, engine_factory, duration,
+            pp_filters=pp_filters,
+            preview_width=preview_width or None,
+        )
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"PP template test WS error for {template_id}: {e}")
+    finally:
+        logger.info(f"PP template test WS disconnected for {template_id}")

server/src/wled_controller/api/routes/scene_presets.py

@@ -0,0 +1,271 @@
+"""Scene preset API routes — CRUD, capture, activate, recapture."""
+
+import uuid
+from datetime import datetime, timezone
+
+from fastapi import APIRouter, Depends, HTTPException
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_output_target_store,
+    get_processor_manager,
+    get_scene_preset_store,
+)
+from wled_controller.api.schemas.scene_presets import (
+    ActivateResponse,
+    ScenePresetCreate,
+    ScenePresetListResponse,
+    ScenePresetResponse,
+    ScenePresetUpdate,
+)
+from wled_controller.core.processing.processor_manager import ProcessorManager
+from wled_controller.core.scenes.scene_activator import (
+    apply_scene_state,
+    capture_current_snapshot,
+)
+from wled_controller.storage.output_target_store import OutputTargetStore
+from wled_controller.storage.scene_preset import ScenePreset
+from wled_controller.storage.scene_preset_store import ScenePresetStore
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+router = APIRouter()
+
+
+def _preset_to_response(preset: ScenePreset) -> ScenePresetResponse:
+    return ScenePresetResponse(
+        id=preset.id,
+        name=preset.name,
+        description=preset.description,
+        targets=[{
+            "target_id": t.target_id,
+            "running": t.running,
+            "color_strip_source_id": t.color_strip_source_id,
+            "brightness_value_source_id": t.brightness_value_source_id,
+            "fps": t.fps,
+        } for t in preset.targets],
+        order=preset.order,
+        tags=preset.tags,
+        created_at=preset.created_at,
+        updated_at=preset.updated_at,
+    )
+
+
+# ===== CRUD =====
+
+@router.post(
+    "/api/v1/scene-presets",
+    response_model=ScenePresetResponse,
+    tags=["Scene Presets"],
+    status_code=201,
+)
+async def create_scene_preset(
+    data: ScenePresetCreate,
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Capture current state as a new scene preset."""
+    target_ids = set(data.target_ids) if data.target_ids is not None else None
+    targets = capture_current_snapshot(target_store, manager, target_ids)
+
+    now = datetime.now(timezone.utc)
+    preset = ScenePreset(
+        id=f"scene_{uuid.uuid4().hex[:8]}",
+        name=data.name,
+        description=data.description,
+        targets=targets,
+        order=store.count(),
+        tags=data.tags if data.tags is not None else [],
+        created_at=now,
+        updated_at=now,
+    )
+
+    try:
+        preset = store.create_preset(preset)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+    fire_entity_event("scene_preset", "created", preset.id)
+    return _preset_to_response(preset)
+
+
+@router.get(
+    "/api/v1/scene-presets",
+    response_model=ScenePresetListResponse,
+    tags=["Scene Presets"],
+)
+async def list_scene_presets(
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+):
+    """List all scene presets."""
+    presets = store.get_all_presets()
+    return ScenePresetListResponse(
+        presets=[_preset_to_response(p) for p in presets],
+        count=len(presets),
+    )
+
+
+@router.get(
+    "/api/v1/scene-presets/{preset_id}",
+    response_model=ScenePresetResponse,
+    tags=["Scene Presets"],
+)
+async def get_scene_preset(
+    preset_id: str,
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+):
+    """Get a single scene preset."""
+    try:
+        preset = store.get_preset(preset_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    return _preset_to_response(preset)
+
+
+@router.put(
+    "/api/v1/scene-presets/{preset_id}",
+    response_model=ScenePresetResponse,
+    tags=["Scene Presets"],
+)
+async def update_scene_preset(
+    preset_id: str,
+    data: ScenePresetUpdate,
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Update scene preset metadata and optionally change targets."""
+    # If target_ids changed, update the snapshot: keep state for existing targets,
+    # capture fresh state for newly added targets, drop removed ones.
+    new_targets = None
+    if data.target_ids is not None:
+        try:
+            existing = store.get_preset(preset_id)
+        except ValueError as e:
+            raise HTTPException(status_code=404, detail=str(e))
+
+        existing_map = {t.target_id: t for t in existing.targets}
+        new_target_ids = set(data.target_ids)
+
+        # Capture fresh state for newly added targets
+        added_ids = new_target_ids - set(existing_map.keys())
+        fresh = capture_current_snapshot(target_store, manager, added_ids) if added_ids else []
+        fresh_map = {t.target_id: t for t in fresh}
+
+        # Build new target list preserving order from target_ids
+        new_targets = []
+        for tid in data.target_ids:
+            if tid in existing_map:
+                new_targets.append(existing_map[tid])
+            elif tid in fresh_map:
+                new_targets.append(fresh_map[tid])
+
+    try:
+        preset = store.update_preset(
+            preset_id,
+            name=data.name,
+            description=data.description,
+            order=data.order,
+            targets=new_targets,
+            tags=data.tags,
+        )
+    except ValueError as e:
+        raise HTTPException(status_code=404 if "not found" in str(e).lower() else 400, detail=str(e))
+    fire_entity_event("scene_preset", "updated", preset_id)
+    return _preset_to_response(preset)
+
+
+@router.delete(
+    "/api/v1/scene-presets/{preset_id}",
+    status_code=204,
+    tags=["Scene Presets"],
+)
+async def delete_scene_preset(
+    preset_id: str,
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+):
+    """Delete a scene preset."""
+    try:
+        store.delete_preset(preset_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    fire_entity_event("scene_preset", "deleted", preset_id)
+
+
+# ===== Recapture =====
+
+@router.post(
+    "/api/v1/scene-presets/{preset_id}/recapture",
+    response_model=ScenePresetResponse,
+    tags=["Scene Presets"],
+)
+async def recapture_scene_preset(
+    preset_id: str,
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Re-capture current state into an existing preset (updates snapshot)."""
+    try:
+        existing = store.get_preset(preset_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    # Only recapture targets that are already in the preset
+    existing_ids = {t.target_id for t in existing.targets}
+    targets = capture_current_snapshot(target_store, manager, existing_ids)
+
+    new_snapshot = ScenePreset(
+        id=preset_id,
+        name="",
+        targets=targets,
+    )
+
+    try:
+        preset = store.recapture_preset(preset_id, new_snapshot)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    return _preset_to_response(preset)
+
+
+# ===== Activate =====
+
+@router.post(
+    "/api/v1/scene-presets/{preset_id}/activate",
+    response_model=ActivateResponse,
+    tags=["Scene Presets"],
+)
+async def activate_scene_preset(
+    preset_id: str,
+    _auth: AuthRequired,
+    store: ScenePresetStore = Depends(get_scene_preset_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+    manager: ProcessorManager = Depends(get_processor_manager),
+):
+    """Activate a scene preset — restore the captured state."""
+    try:
+        preset = store.get_preset(preset_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    status, errors = await apply_scene_state(preset, target_store, manager)
+
+    if not errors:
+        logger.info(f"Scene preset '{preset.name}' activated successfully")
+
+    fire_entity_event("scene_preset", "updated", preset_id)
+    return ActivateResponse(status=status, errors=errors)

server/src/wled_controller/api/routes/sync_clocks.py

@@ -0,0 +1,204 @@
+"""Sync clock routes: CRUD + runtime control for synchronization clocks."""
+
+from fastapi import APIRouter, Depends, HTTPException
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_color_strip_store,
+    get_sync_clock_manager,
+    get_sync_clock_store,
+)
+from wled_controller.api.schemas.sync_clocks import (
+    SyncClockCreate,
+    SyncClockListResponse,
+    SyncClockResponse,
+    SyncClockUpdate,
+)
+from wled_controller.storage.sync_clock import SyncClock
+from wled_controller.storage.sync_clock_store import SyncClockStore
+from wled_controller.storage.color_strip_store import ColorStripStore
+from wled_controller.core.processing.sync_clock_manager import SyncClockManager
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _to_response(clock: SyncClock, manager: SyncClockManager) -> SyncClockResponse:
+    """Convert a SyncClock to a SyncClockResponse (with runtime state)."""
+    rt = manager.get_runtime(clock.id)
+    return SyncClockResponse(
+        id=clock.id,
+        name=clock.name,
+        speed=rt.speed if rt else clock.speed,
+        description=clock.description,
+        tags=clock.tags,
+        is_running=rt.is_running if rt else True,
+        elapsed_time=rt.get_time() if rt else 0.0,
+        created_at=clock.created_at,
+        updated_at=clock.updated_at,
+    )
+
+
+@router.get("/api/v1/sync-clocks", response_model=SyncClockListResponse, tags=["Sync Clocks"])
+async def list_sync_clocks(
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """List all synchronization clocks."""
+    clocks = store.get_all_clocks()
+    return SyncClockListResponse(
+        clocks=[_to_response(c, manager) for c in clocks],
+        count=len(clocks),
+    )
+
+
+@router.post("/api/v1/sync-clocks", response_model=SyncClockResponse, status_code=201, tags=["Sync Clocks"])
+async def create_sync_clock(
+    data: SyncClockCreate,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Create a new synchronization clock."""
+    try:
+        clock = store.create_clock(
+            name=data.name,
+            speed=data.speed,
+            description=data.description,
+            tags=data.tags,
+        )
+        fire_entity_event("sync_clock", "created", clock.id)
+        return _to_response(clock, manager)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.get("/api/v1/sync-clocks/{clock_id}", response_model=SyncClockResponse, tags=["Sync Clocks"])
+async def get_sync_clock(
+    clock_id: str,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Get a synchronization clock by ID."""
+    try:
+        clock = store.get_clock(clock_id)
+        return _to_response(clock, manager)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+@router.put("/api/v1/sync-clocks/{clock_id}", response_model=SyncClockResponse, tags=["Sync Clocks"])
+async def update_sync_clock(
+    clock_id: str,
+    data: SyncClockUpdate,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Update a synchronization clock.  Speed changes are hot-applied to running streams."""
+    try:
+        clock = store.update_clock(
+            clock_id=clock_id,
+            name=data.name,
+            speed=data.speed,
+            description=data.description,
+            tags=data.tags,
+        )
+        # Hot-update runtime speed
+        if data.speed is not None:
+            manager.update_speed(clock_id, clock.speed)
+        fire_entity_event("sync_clock", "updated", clock_id)
+        return _to_response(clock, manager)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.delete("/api/v1/sync-clocks/{clock_id}", status_code=204, tags=["Sync Clocks"])
+async def delete_sync_clock(
+    clock_id: str,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    css_store: ColorStripStore = Depends(get_color_strip_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Delete a synchronization clock (fails if referenced by CSS sources)."""
+    try:
+        # Check references
+        for source in css_store.get_all_sources():
+            if getattr(source, "clock_id", None) == clock_id:
+                raise ValueError(
+                    f"Cannot delete: referenced by color strip source '{source.name}'"
+                )
+        manager.release_all_for(clock_id)
+        store.delete_clock(clock_id)
+        fire_entity_event("sync_clock", "deleted", clock_id)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+# ── Runtime control ──────────────────────────────────────────────────
+
+@router.post("/api/v1/sync-clocks/{clock_id}/pause", response_model=SyncClockResponse, tags=["Sync Clocks"])
+async def pause_sync_clock(
+    clock_id: str,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Pause a synchronization clock — all linked animations freeze."""
+    try:
+        clock = store.get_clock(clock_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    manager.pause(clock_id)
+    fire_entity_event("sync_clock", "updated", clock_id)
+    return _to_response(clock, manager)
+
+
+@router.post("/api/v1/sync-clocks/{clock_id}/resume", response_model=SyncClockResponse, tags=["Sync Clocks"])
+async def resume_sync_clock(
+    clock_id: str,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Resume a paused synchronization clock."""
+    try:
+        clock = store.get_clock(clock_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    manager.resume(clock_id)
+    fire_entity_event("sync_clock", "updated", clock_id)
+    return _to_response(clock, manager)
+
+
+@router.post("/api/v1/sync-clocks/{clock_id}/reset", response_model=SyncClockResponse, tags=["Sync Clocks"])
+async def reset_sync_clock(
+    clock_id: str,
+    _auth: AuthRequired,
+    store: SyncClockStore = Depends(get_sync_clock_store),
+    manager: SyncClockManager = Depends(get_sync_clock_manager),
+):
+    """Reset a synchronization clock to t=0 — all linked animations restart."""
+    try:
+        clock = store.get_clock(clock_id)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    manager.reset(clock_id)
+    fire_entity_event("sync_clock", "updated", clock_id)
+    return _to_response(clock, manager)

server/src/wled_controller/api/routes/system.py

@@ -0,0 +1,994 @@
+"""System routes: health, version, displays, performance, backup/restore, ADB."""
+
+import asyncio
+import io
+import json
+import logging
+import platform
+import subprocess
+import sys
+import threading
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Optional
+
+import psutil
+from fastapi import APIRouter, Depends, File, HTTPException, Query, UploadFile, WebSocket, WebSocketDisconnect
+from fastapi.responses import StreamingResponse
+from pydantic import BaseModel
+
+from wled_controller import __version__
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    get_auto_backup_engine,
+    get_audio_source_store,
+    get_audio_template_store,
+    get_automation_store,
+    get_color_strip_store,
+    get_device_store,
+    get_output_target_store,
+    get_pattern_template_store,
+    get_picture_source_store,
+    get_pp_template_store,
+    get_processor_manager,
+    get_scene_preset_store,
+    get_sync_clock_store,
+    get_template_store,
+    get_value_source_store,
+)
+from wled_controller.api.schemas.system import (
+    AutoBackupSettings,
+    AutoBackupStatusResponse,
+    BackupFileInfo,
+    BackupListResponse,
+    DisplayInfo,
+    DisplayListResponse,
+    ExternalUrlRequest,
+    ExternalUrlResponse,
+    GpuInfo,
+    HealthResponse,
+    LogLevelRequest,
+    LogLevelResponse,
+    MQTTSettingsRequest,
+    MQTTSettingsResponse,
+    PerformanceResponse,
+    ProcessListResponse,
+    RestoreResponse,
+    VersionResponse,
+)
+from wled_controller.core.backup.auto_backup import AutoBackupEngine
+from wled_controller.config import get_config, is_demo_mode
+from wled_controller.core.capture.screen_capture import get_available_displays
+from wled_controller.utils import atomic_write_json, get_logger
+
+logger = get_logger(__name__)
+
+# Prime psutil CPU counter (first call always returns 0.0)
+psutil.cpu_percent(interval=None)
+
+# GPU monitoring (initialized once in utils.gpu, shared with metrics_history)
+from wled_controller.utils.gpu import nvml_available as _nvml_available, nvml as _nvml, nvml_handle as _nvml_handle
+from wled_controller.storage.base_store import EntityNotFoundError
+
+
+def _get_cpu_name() -> str | None:
+    """Get a human-friendly CPU model name (cached at module level)."""
+    try:
+        if platform.system() == "Windows":
+            import winreg
+
+            key = winreg.OpenKey(
+                winreg.HKEY_LOCAL_MACHINE,
+                r"HARDWARE\DESCRIPTION\System\CentralProcessor\0",
+            )
+            name, _ = winreg.QueryValueEx(key, "ProcessorNameString")
+            winreg.CloseKey(key)
+            return name.strip()
+        elif platform.system() == "Linux":
+            with open("/proc/cpuinfo") as f:
+                for line in f:
+                    if "model name" in line:
+                        return line.split(":")[1].strip()
+        elif platform.system() == "Darwin":
+            return (
+                subprocess.check_output(
+                    ["sysctl", "-n", "machdep.cpu.brand_string"]
+                )
+                .decode()
+                .strip()
+            )
+    except Exception as e:
+        logger.warning("CPU name detection failed: %s", e)
+    return platform.processor() or None
+
+
+_cpu_name: str | None = _get_cpu_name()
+
+router = APIRouter()
+
+
+@router.get("/health", response_model=HealthResponse, tags=["Health"])
+async def health_check():
+    """Check service health status.
+
+    Returns basic health information including status, version, and timestamp.
+    """
+    logger.info("Health check requested")
+
+    return HealthResponse(
+        status="healthy",
+        timestamp=datetime.now(timezone.utc),
+        version=__version__,
+        demo_mode=get_config().demo,
+    )
+
+
+@router.get("/api/v1/version", response_model=VersionResponse, tags=["Info"])
+async def get_version():
+    """Get version information.
+
+    Returns application version, Python version, and API version.
+    """
+    logger.info("Version info requested")
+
+    return VersionResponse(
+        version=__version__,
+        python_version=f"{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}",
+        api_version="v1",
+        demo_mode=get_config().demo,
+    )
+
+
+@router.get("/api/v1/tags", tags=["Tags"])
+async def list_all_tags(_: AuthRequired):
+    """Get all tags used across all entities."""
+    all_tags: set[str] = set()
+    store_getters = [
+        get_device_store, get_output_target_store, get_color_strip_store,
+        get_picture_source_store, get_audio_source_store, get_value_source_store,
+        get_sync_clock_store, get_automation_store, get_scene_preset_store,
+        get_template_store, get_audio_template_store, get_pp_template_store,
+        get_pattern_template_store,
+    ]
+    for getter in store_getters:
+        try:
+            store = getter()
+        except RuntimeError:
+            continue
+        # BaseJsonStore subclasses provide get_all(); DeviceStore provides get_all_devices()
+        fn = getattr(store, "get_all", None) or getattr(store, "get_all_devices", None)
+        items = fn() if fn else None
+        if items:
+            for item in items:
+                all_tags.update(item.tags)
+    return {"tags": sorted(all_tags)}
+
+
+@router.get("/api/v1/config/displays", response_model=DisplayListResponse, tags=["Config"])
+async def get_displays(
+    _: AuthRequired,
+    engine_type: Optional[str] = Query(None, description="Engine type to get displays for"),
+):
+    """Get list of available displays.
+
+    Returns information about all available monitors/displays that can be captured.
+    When ``engine_type`` is provided, returns displays specific to that engine
+    (e.g. ``scrcpy`` returns connected Android devices instead of desktop monitors).
+    """
+    logger.info(f"Listing available displays (engine_type={engine_type})")
+
+    try:
+        from wled_controller.core.capture_engines import EngineRegistry
+
+        if engine_type:
+            engine_cls = EngineRegistry.get_engine(engine_type)
+            display_dataclasses = await asyncio.to_thread(engine_cls.get_available_displays)
+        elif is_demo_mode():
+            # In demo mode, use the best available engine (demo engine at priority 1000)
+            # instead of the mss-based real display detection
+            best = EngineRegistry.get_best_available_engine()
+            if best:
+                engine_cls = EngineRegistry.get_engine(best)
+                display_dataclasses = await asyncio.to_thread(engine_cls.get_available_displays)
+            else:
+                display_dataclasses = await asyncio.to_thread(get_available_displays)
+        else:
+            display_dataclasses = await asyncio.to_thread(get_available_displays)
+
+        # Convert dataclass DisplayInfo to Pydantic DisplayInfo
+        displays = [
+            DisplayInfo(
+                index=d.index,
+                name=d.name,
+                width=d.width,
+                height=d.height,
+                x=d.x,
+                y=d.y,
+                is_primary=d.is_primary,
+                refresh_rate=d.refresh_rate,
+            )
+            for d in display_dataclasses
+        ]
+
+        logger.info(f"Found {len(displays)} displays")
+
+        return DisplayListResponse(
+            displays=displays,
+            count=len(displays),
+        )
+
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to get displays: {e}")
+        raise HTTPException(
+            status_code=500,
+            detail=f"Failed to retrieve display information: {str(e)}"
+        )
+
+
+@router.get("/api/v1/system/processes", response_model=ProcessListResponse, tags=["Config"])
+async def get_running_processes(_: AuthRequired):
+    """Get list of currently running process names.
+
+    Returns a sorted list of unique process names for use in automation conditions.
+    """
+    from wled_controller.core.automations.platform_detector import PlatformDetector
+
+    try:
+        detector = PlatformDetector()
+        processes = await detector.get_running_processes()
+        sorted_procs = sorted(processes)
+        return ProcessListResponse(processes=sorted_procs, count=len(sorted_procs))
+    except Exception as e:
+        logger.error(f"Failed to get processes: {e}")
+        raise HTTPException(
+            status_code=500,
+            detail=f"Failed to retrieve process list: {str(e)}"
+        )
+
+
+@router.get(
+    "/api/v1/system/performance",
+    response_model=PerformanceResponse,
+    tags=["Config"],
+)
+def get_system_performance(_: AuthRequired):
+    """Get current system performance metrics (CPU, RAM, GPU).
+
+    Uses sync ``def`` so FastAPI runs it in a thread pool — the psutil
+    and NVML calls are blocking and would stall the event loop if run
+    in an ``async def`` handler.
+    """
+    mem = psutil.virtual_memory()
+
+    gpu = None
+    if _nvml_available:
+        try:
+            util = _nvml.nvmlDeviceGetUtilizationRates(_nvml_handle)
+            mem_info = _nvml.nvmlDeviceGetMemoryInfo(_nvml_handle)
+            temp = _nvml.nvmlDeviceGetTemperature(
+                _nvml_handle, _nvml.NVML_TEMPERATURE_GPU
+            )
+            gpu = GpuInfo(
+                name=_nvml.nvmlDeviceGetName(_nvml_handle),
+                utilization=float(util.gpu),
+                memory_used_mb=round(mem_info.used / 1024 / 1024, 1),
+                memory_total_mb=round(mem_info.total / 1024 / 1024, 1),
+                temperature_c=float(temp),
+            )
+        except Exception as e:
+            logger.debug("NVML query failed: %s", e)
+
+    return PerformanceResponse(
+        cpu_name=_cpu_name,
+        cpu_percent=psutil.cpu_percent(interval=None),
+        ram_used_mb=round(mem.used / 1024 / 1024, 1),
+        ram_total_mb=round(mem.total / 1024 / 1024, 1),
+        ram_percent=mem.percent,
+        gpu=gpu,
+        timestamp=datetime.now(timezone.utc),
+    )
+
+
+@router.get("/api/v1/system/metrics-history", tags=["Config"])
+async def get_metrics_history(
+    _: AuthRequired,
+    manager=Depends(get_processor_manager),
+):
+    """Return the last ~2 minutes of system and per-target metrics.
+
+    Used by the dashboard to seed charts on page load so history
+    survives browser refreshes.
+    """
+    return manager.metrics_history.get_history()
+
+
+# ---------------------------------------------------------------------------
+# Configuration backup / restore
+# ---------------------------------------------------------------------------
+
+# Mapping: logical store name → StorageConfig attribute name
+STORE_MAP = {
+    "devices": "devices_file",
+    "capture_templates": "templates_file",
+    "postprocessing_templates": "postprocessing_templates_file",
+    "picture_sources": "picture_sources_file",
+    "output_targets": "output_targets_file",
+    "pattern_templates": "pattern_templates_file",
+    "color_strip_sources": "color_strip_sources_file",
+    "audio_sources": "audio_sources_file",
+    "audio_templates": "audio_templates_file",
+    "value_sources": "value_sources_file",
+    "sync_clocks": "sync_clocks_file",
+    "color_strip_processing_templates": "color_strip_processing_templates_file",
+    "automations": "automations_file",
+    "scene_presets": "scene_presets_file",
+}
+
+_SERVER_DIR = Path(__file__).resolve().parents[4]
+
+
+def _schedule_restart() -> None:
+    """Spawn a restart script after a short delay so the HTTP response completes."""
+
+    def _restart():
+        import time
+        time.sleep(1)
+        if sys.platform == "win32":
+            subprocess.Popen(
+                ["powershell", "-ExecutionPolicy", "Bypass", "-File",
+                 str(_SERVER_DIR / "restart.ps1")],
+                creationflags=subprocess.DETACHED_PROCESS | subprocess.CREATE_NEW_PROCESS_GROUP,
+            )
+        else:
+            subprocess.Popen(
+                ["bash", str(_SERVER_DIR / "restart.sh")],
+                start_new_session=True,
+            )
+
+    threading.Thread(target=_restart, daemon=True).start()
+
+
+@router.get("/api/v1/system/api-keys", tags=["System"])
+def list_api_keys(_: AuthRequired):
+    """List API key labels (read-only; keys are defined in the YAML config file)."""
+    config = get_config()
+    keys = [
+        {"label": label, "masked": key[:4] + "****" + key[-4:] if len(key) >= 8 else "****"}
+        for label, key in config.auth.api_keys.items()
+    ]
+    return {"keys": keys, "count": len(keys)}
+
+
+@router.get("/api/v1/system/export/{store_key}", tags=["System"])
+def export_store(store_key: str, _: AuthRequired):
+    """Download a single entity store as a JSON file."""
+    if store_key not in STORE_MAP:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Unknown store '{store_key}'. Valid keys: {sorted(STORE_MAP.keys())}",
+        )
+    config = get_config()
+    file_path = Path(getattr(config.storage, STORE_MAP[store_key]))
+    if file_path.exists():
+        with open(file_path, "r", encoding="utf-8") as f:
+            data = json.load(f)
+    else:
+        data = {}
+
+    export = {
+        "meta": {
+            "format": "ledgrab-partial-export",
+            "format_version": 1,
+            "store_key": store_key,
+            "app_version": __version__,
+            "created_at": datetime.now(timezone.utc).isoformat() + "Z",
+        },
+        "store": data,
+    }
+    content = json.dumps(export, indent=2, ensure_ascii=False)
+    timestamp = datetime.now(timezone.utc).strftime("%Y-%m-%dT%H%M%S")
+    filename = f"ledgrab-{store_key}-{timestamp}.json"
+    return StreamingResponse(
+        io.BytesIO(content.encode("utf-8")),
+        media_type="application/json",
+        headers={"Content-Disposition": f'attachment; filename="{filename}"'},
+    )
+
+
+@router.post("/api/v1/system/import/{store_key}", tags=["System"])
+async def import_store(
+    store_key: str,
+    _: AuthRequired,
+    file: UploadFile = File(...),
+    merge: bool = Query(False, description="Merge into existing data instead of replacing"),
+):
+    """Upload a partial export file to replace or merge one entity store. Triggers server restart."""
+    if store_key not in STORE_MAP:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Unknown store '{store_key}'. Valid keys: {sorted(STORE_MAP.keys())}",
+        )
+
+    try:
+        raw = await file.read()
+        if len(raw) > 10 * 1024 * 1024:
+            raise HTTPException(status_code=400, detail="File too large (max 10 MB)")
+        payload = json.loads(raw)
+    except json.JSONDecodeError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid JSON: {e}")
+
+    # Support both full-backup format and partial-export format
+    if "stores" in payload and isinstance(payload.get("meta"), dict):
+        # Full backup: extract the specific store
+        if payload["meta"].get("format") not in ("ledgrab-backup",):
+            raise HTTPException(status_code=400, detail="Not a valid LED Grab backup or partial export file")
+        stores = payload.get("stores", {})
+        if store_key not in stores:
+            raise HTTPException(status_code=400, detail=f"Backup does not contain store '{store_key}'")
+        incoming = stores[store_key]
+    elif isinstance(payload.get("meta"), dict) and payload["meta"].get("format") == "ledgrab-partial-export":
+        # Partial export format
+        if payload["meta"].get("store_key") != store_key:
+            raise HTTPException(
+                status_code=400,
+                detail=f"File is for store '{payload['meta']['store_key']}', not '{store_key}'",
+            )
+        incoming = payload.get("store", {})
+    else:
+        raise HTTPException(status_code=400, detail="Not a valid LED Grab backup or partial export file")
+
+    if not isinstance(incoming, dict):
+        raise HTTPException(status_code=400, detail="Store data must be a JSON object")
+
+    config = get_config()
+    file_path = Path(getattr(config.storage, STORE_MAP[store_key]))
+
+    def _write():
+        if merge and file_path.exists():
+            with open(file_path, "r", encoding="utf-8") as f:
+                existing = json.load(f)
+            if isinstance(existing, dict):
+                existing.update(incoming)
+                atomic_write_json(file_path, existing)
+                return len(existing)
+        atomic_write_json(file_path, incoming)
+        return len(incoming)
+
+    count = await asyncio.to_thread(_write)
+    logger.info(f"Imported store '{store_key}' ({count} entries, merge={merge}). Scheduling restart...")
+    _schedule_restart()
+    return {
+        "status": "imported",
+        "store_key": store_key,
+        "entries": count,
+        "merge": merge,
+        "restart_scheduled": True,
+        "message": f"Imported {count} entries for '{store_key}'. Server restarting...",
+    }
+
+
+@router.get("/api/v1/system/backup", tags=["System"])
+def backup_config(_: AuthRequired):
+    """Download all configuration as a single JSON backup file."""
+    config = get_config()
+    stores = {}
+    for store_key, config_attr in STORE_MAP.items():
+        file_path = Path(getattr(config.storage, config_attr))
+        if file_path.exists():
+            with open(file_path, "r", encoding="utf-8") as f:
+                stores[store_key] = json.load(f)
+        else:
+            stores[store_key] = {}
+
+    backup = {
+        "meta": {
+            "format": "ledgrab-backup",
+            "format_version": 1,
+            "app_version": __version__,
+            "created_at": datetime.now(timezone.utc).isoformat() + "Z",
+            "store_count": len(stores),
+        },
+        "stores": stores,
+    }
+
+    content = json.dumps(backup, indent=2, ensure_ascii=False)
+    timestamp = datetime.now(timezone.utc).strftime("%Y-%m-%dT%H%M%S")
+    filename = f"ledgrab-backup-{timestamp}.json"
+
+    return StreamingResponse(
+        io.BytesIO(content.encode("utf-8")),
+        media_type="application/json",
+        headers={"Content-Disposition": f'attachment; filename="{filename}"'},
+    )
+
+
+@router.post("/api/v1/system/restart", tags=["System"])
+def restart_server(_: AuthRequired):
+    """Schedule a server restart and return immediately."""
+    _schedule_restart()
+    return {"status": "restarting"}
+
+
+@router.post("/api/v1/system/restore", response_model=RestoreResponse, tags=["System"])
+async def restore_config(
+    _: AuthRequired,
+    file: UploadFile = File(...),
+):
+    """Upload a backup file to restore all configuration. Triggers server restart."""
+    # Read and parse
+    try:
+        raw = await file.read()
+        if len(raw) > 10 * 1024 * 1024:  # 10 MB limit
+            raise HTTPException(status_code=400, detail="Backup file too large (max 10 MB)")
+        backup = json.loads(raw)
+    except json.JSONDecodeError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid JSON file: {e}")
+
+    # Validate envelope
+    meta = backup.get("meta")
+    if not isinstance(meta, dict) or meta.get("format") != "ledgrab-backup":
+        raise HTTPException(status_code=400, detail="Not a valid LED Grab backup file")
+
+    fmt_version = meta.get("format_version", 0)
+    if fmt_version > 1:
+        raise HTTPException(
+            status_code=400,
+            detail=f"Backup format version {fmt_version} is not supported by this server version",
+        )
+
+    stores = backup.get("stores")
+    if not isinstance(stores, dict):
+        raise HTTPException(status_code=400, detail="Backup file missing 'stores' section")
+
+    known_keys = set(STORE_MAP.keys())
+    present_keys = known_keys & set(stores.keys())
+    if not present_keys:
+        raise HTTPException(status_code=400, detail="Backup contains no recognized store data")
+
+    for key in present_keys:
+        if not isinstance(stores[key], dict):
+            raise HTTPException(status_code=400, detail=f"Store '{key}' in backup is not a valid JSON object")
+
+    # Write store files atomically (in thread to avoid blocking event loop)
+    config = get_config()
+
+    def _write_stores():
+        count = 0
+        for store_key, config_attr in STORE_MAP.items():
+            if store_key in stores:
+                file_path = Path(getattr(config.storage, config_attr))
+                atomic_write_json(file_path, stores[store_key])
+                count += 1
+                logger.info(f"Restored store: {store_key} -> {file_path}")
+        return count
+
+    written = await asyncio.to_thread(_write_stores)
+
+    logger.info(f"Restore complete: {written}/{len(STORE_MAP)} stores written. Scheduling restart...")
+    _schedule_restart()
+
+    missing = known_keys - present_keys
+    return RestoreResponse(
+        status="restored",
+        stores_written=written,
+        stores_total=len(STORE_MAP),
+        missing_stores=sorted(missing) if missing else [],
+        restart_scheduled=True,
+        message=f"Restored {written} stores. Server restarting...",
+    )
+
+
+# ---------------------------------------------------------------------------
+# Auto-backup settings & saved backups
+# ---------------------------------------------------------------------------
+
+
+@router.get(
+    "/api/v1/system/auto-backup/settings",
+    response_model=AutoBackupStatusResponse,
+    tags=["System"],
+)
+async def get_auto_backup_settings(
+    _: AuthRequired,
+    engine: AutoBackupEngine = Depends(get_auto_backup_engine),
+):
+    """Get auto-backup settings and status."""
+    return engine.get_settings()
+
+
+@router.put(
+    "/api/v1/system/auto-backup/settings",
+    response_model=AutoBackupStatusResponse,
+    tags=["System"],
+)
+async def update_auto_backup_settings(
+    _: AuthRequired,
+    body: AutoBackupSettings,
+    engine: AutoBackupEngine = Depends(get_auto_backup_engine),
+):
+    """Update auto-backup settings (enable/disable, interval, max backups)."""
+    return await engine.update_settings(
+        enabled=body.enabled,
+        interval_hours=body.interval_hours,
+        max_backups=body.max_backups,
+    )
+
+
+@router.post("/api/v1/system/auto-backup/trigger", tags=["System"])
+async def trigger_backup(
+    _: AuthRequired,
+    engine: AutoBackupEngine = Depends(get_auto_backup_engine),
+):
+    """Manually trigger a backup now."""
+    backup = await engine.trigger_backup()
+    return {"status": "ok", "backup": backup}
+
+
+@router.get(
+    "/api/v1/system/backups",
+    response_model=BackupListResponse,
+    tags=["System"],
+)
+async def list_backups(
+    _: AuthRequired,
+    engine: AutoBackupEngine = Depends(get_auto_backup_engine),
+):
+    """List all saved backup files."""
+    backups = engine.list_backups()
+    return BackupListResponse(
+        backups=[BackupFileInfo(**b) for b in backups],
+        count=len(backups),
+    )
+
+
+@router.get("/api/v1/system/backups/{filename}", tags=["System"])
+def download_saved_backup(
+    filename: str,
+    _: AuthRequired,
+    engine: AutoBackupEngine = Depends(get_auto_backup_engine),
+):
+    """Download a specific saved backup file."""
+    try:
+        path = engine.get_backup_path(filename)
+    except (ValueError, FileNotFoundError) as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    content = path.read_bytes()
+    return StreamingResponse(
+        io.BytesIO(content),
+        media_type="application/json",
+        headers={"Content-Disposition": f'attachment; filename="{filename}"'},
+    )
+
+
+@router.delete("/api/v1/system/backups/{filename}", tags=["System"])
+async def delete_saved_backup(
+    filename: str,
+    _: AuthRequired,
+    engine: AutoBackupEngine = Depends(get_auto_backup_engine),
+):
+    """Delete a specific saved backup file."""
+    try:
+        engine.delete_backup(filename)
+    except (ValueError, FileNotFoundError) as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    return {"status": "deleted", "filename": filename}
+
+
+# ---------------------------------------------------------------------------
+# MQTT settings
+# ---------------------------------------------------------------------------
+
+_MQTT_SETTINGS_FILE: Path | None = None
+
+
+def _get_mqtt_settings_path() -> Path:
+    global _MQTT_SETTINGS_FILE
+    if _MQTT_SETTINGS_FILE is None:
+        cfg = get_config()
+        # Derive the data directory from any known storage file path
+        data_dir = Path(cfg.storage.devices_file).parent
+        _MQTT_SETTINGS_FILE = data_dir / "mqtt_settings.json"
+    return _MQTT_SETTINGS_FILE
+
+
+def _load_mqtt_settings() -> dict:
+    """Load MQTT settings: YAML config defaults overridden by JSON overrides file."""
+    cfg = get_config()
+    defaults = {
+        "enabled": cfg.mqtt.enabled,
+        "broker_host": cfg.mqtt.broker_host,
+        "broker_port": cfg.mqtt.broker_port,
+        "username": cfg.mqtt.username,
+        "password": cfg.mqtt.password,
+        "client_id": cfg.mqtt.client_id,
+        "base_topic": cfg.mqtt.base_topic,
+    }
+    path = _get_mqtt_settings_path()
+    if path.exists():
+        try:
+            with open(path, "r", encoding="utf-8") as f:
+                overrides = json.load(f)
+            defaults.update(overrides)
+        except Exception as e:
+            logger.warning(f"Failed to load MQTT settings override file: {e}")
+    return defaults
+
+
+def _save_mqtt_settings(settings: dict) -> None:
+    """Persist MQTT settings to the JSON override file."""
+    from wled_controller.utils import atomic_write_json
+    atomic_write_json(_get_mqtt_settings_path(), settings)
+
+
+@router.get(
+    "/api/v1/system/mqtt/settings",
+    response_model=MQTTSettingsResponse,
+    tags=["System"],
+)
+async def get_mqtt_settings(_: AuthRequired):
+    """Get current MQTT broker settings. Password is masked."""
+    s = _load_mqtt_settings()
+    return MQTTSettingsResponse(
+        enabled=s["enabled"],
+        broker_host=s["broker_host"],
+        broker_port=s["broker_port"],
+        username=s["username"],
+        password_set=bool(s.get("password")),
+        client_id=s["client_id"],
+        base_topic=s["base_topic"],
+    )
+
+
+@router.put(
+    "/api/v1/system/mqtt/settings",
+    response_model=MQTTSettingsResponse,
+    tags=["System"],
+)
+async def update_mqtt_settings(_: AuthRequired, body: MQTTSettingsRequest):
+    """Update MQTT broker settings. If password is empty string, the existing password is preserved."""
+    current = _load_mqtt_settings()
+
+    # If caller sends an empty password, keep the existing one
+    password = body.password if body.password else current.get("password", "")
+
+    new_settings = {
+        "enabled": body.enabled,
+        "broker_host": body.broker_host,
+        "broker_port": body.broker_port,
+        "username": body.username,
+        "password": password,
+        "client_id": body.client_id,
+        "base_topic": body.base_topic,
+    }
+    _save_mqtt_settings(new_settings)
+    logger.info("MQTT settings updated")
+
+    return MQTTSettingsResponse(
+        enabled=new_settings["enabled"],
+        broker_host=new_settings["broker_host"],
+        broker_port=new_settings["broker_port"],
+        username=new_settings["username"],
+        password_set=bool(new_settings["password"]),
+        client_id=new_settings["client_id"],
+        base_topic=new_settings["base_topic"],
+    )
+
+
+# ---------------------------------------------------------------------------
+# External URL setting
+# ---------------------------------------------------------------------------
+
+_EXTERNAL_URL_FILE: Path | None = None
+
+
+def _get_external_url_path() -> Path:
+    global _EXTERNAL_URL_FILE
+    if _EXTERNAL_URL_FILE is None:
+        cfg = get_config()
+        data_dir = Path(cfg.storage.devices_file).parent
+        _EXTERNAL_URL_FILE = data_dir / "external_url.json"
+    return _EXTERNAL_URL_FILE
+
+
+def load_external_url() -> str:
+    """Load the external URL setting. Returns empty string if not set."""
+    path = _get_external_url_path()
+    if path.exists():
+        try:
+            with open(path, "r", encoding="utf-8") as f:
+                data = json.load(f)
+            return data.get("external_url", "")
+        except Exception:
+            pass
+    return ""
+
+
+def _save_external_url(url: str) -> None:
+    from wled_controller.utils import atomic_write_json
+    atomic_write_json(_get_external_url_path(), {"external_url": url})
+
+
+@router.get(
+    "/api/v1/system/external-url",
+    response_model=ExternalUrlResponse,
+    tags=["System"],
+)
+async def get_external_url(_: AuthRequired):
+    """Get the configured external base URL."""
+    return ExternalUrlResponse(external_url=load_external_url())
+
+
+@router.put(
+    "/api/v1/system/external-url",
+    response_model=ExternalUrlResponse,
+    tags=["System"],
+)
+async def update_external_url(_: AuthRequired, body: ExternalUrlRequest):
+    """Set the external base URL used in webhook URLs and other user-visible URLs."""
+    url = body.external_url.strip().rstrip("/")
+    _save_external_url(url)
+    logger.info("External URL updated: %s", url or "(cleared)")
+    return ExternalUrlResponse(external_url=url)
+
+
+# ---------------------------------------------------------------------------
+# Live log viewer WebSocket
+# ---------------------------------------------------------------------------
+
+
+@router.websocket("/api/v1/system/logs/ws")
+async def logs_ws(
+    websocket: WebSocket,
+    token: str = Query(""),
+):
+    """WebSocket that streams server log lines in real time.
+
+    Auth via ``?token=<api_key>``.  On connect, sends the last ~500 buffered
+    lines as individual text messages, then pushes new lines as they appear.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    from wled_controller.utils import log_broadcaster
+
+    if not verify_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    await websocket.accept()
+
+    # Ensure the broadcaster knows the event loop (may be first connection)
+    log_broadcaster.ensure_loop()
+
+    # Subscribe *before* reading the backlog so no lines slip through
+    queue = log_broadcaster.subscribe()
+
+    try:
+        # Send backlog first
+        for line in log_broadcaster.get_backlog():
+            await websocket.send_text(line)
+
+        # Stream new lines
+        while True:
+            try:
+                line = await asyncio.wait_for(queue.get(), timeout=30.0)
+                await websocket.send_text(line)
+            except asyncio.TimeoutError:
+                # Send a keepalive ping so the connection stays alive
+                try:
+                    await websocket.send_text("")
+                except Exception:
+                    break
+    except WebSocketDisconnect:
+        pass
+    except Exception:
+        pass
+    finally:
+        log_broadcaster.unsubscribe(queue)
+
+
+# ---------------------------------------------------------------------------
+# ADB helpers (for Android / scrcpy engine)
+# ---------------------------------------------------------------------------
+
+class AdbConnectRequest(BaseModel):
+    address: str
+
+
+def _get_adb_path() -> str:
+    """Get the adb binary path from the scrcpy engine's resolver."""
+    from wled_controller.core.capture_engines.scrcpy_engine import _get_adb
+    return _get_adb()
+
+
+@router.post("/api/v1/adb/connect", tags=["ADB"])
+async def adb_connect(_: AuthRequired, request: AdbConnectRequest):
+    """Connect to a WiFi ADB device by IP address.
+
+    Appends ``:5555`` if no port is specified.
+    """
+    address = request.address.strip()
+    if not address:
+        raise HTTPException(status_code=400, detail="Address is required")
+    if ":" not in address:
+        address = f"{address}:5555"
+
+    adb = _get_adb_path()
+    logger.info(f"Connecting ADB device: {address}")
+    try:
+        proc = await asyncio.create_subprocess_exec(
+            adb, "connect", address,
+            stdout=asyncio.subprocess.PIPE,
+            stderr=asyncio.subprocess.PIPE,
+        )
+        stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=10)
+        output = (stdout.decode() + stderr.decode()).strip()
+        if "connected" in output.lower():
+            return {"status": "connected", "address": address, "message": output}
+        raise HTTPException(status_code=400, detail=output or "Connection failed")
+    except FileNotFoundError:
+        raise HTTPException(
+            status_code=500,
+            detail="adb not found on PATH. Install Android SDK Platform-Tools.",
+        )
+    except asyncio.TimeoutError:
+        raise HTTPException(status_code=504, detail="ADB connect timed out")
+
+
+@router.post("/api/v1/adb/disconnect", tags=["ADB"])
+async def adb_disconnect(_: AuthRequired, request: AdbConnectRequest):
+    """Disconnect a WiFi ADB device."""
+    address = request.address.strip()
+    if not address:
+        raise HTTPException(status_code=400, detail="Address is required")
+
+    adb = _get_adb_path()
+    logger.info(f"Disconnecting ADB device: {address}")
+    try:
+        proc = await asyncio.create_subprocess_exec(
+            adb, "disconnect", address,
+            stdout=asyncio.subprocess.PIPE,
+            stderr=asyncio.subprocess.PIPE,
+        )
+        stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=10)
+        return {"status": "disconnected", "message": stdout.decode().strip()}
+    except FileNotFoundError:
+        raise HTTPException(status_code=500, detail="adb not found on PATH")
+    except asyncio.TimeoutError:
+        raise HTTPException(status_code=504, detail="ADB disconnect timed out")
+
+
+# ─── Log level ─────────────────────────────────────────────────
+
+_VALID_LOG_LEVELS = {"DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"}
+
+
+@router.get("/api/v1/system/log-level", response_model=LogLevelResponse, tags=["System"])
+async def get_log_level(_: AuthRequired):
+    """Get the current root logger log level."""
+    level_int = logging.getLogger().getEffectiveLevel()
+    return LogLevelResponse(level=logging.getLevelName(level_int))
+
+
+@router.put("/api/v1/system/log-level", response_model=LogLevelResponse, tags=["System"])
+async def set_log_level(_: AuthRequired, body: LogLevelRequest):
+    """Change the root logger log level at runtime (no server restart required)."""
+    level_name = body.level.upper()
+    if level_name not in _VALID_LOG_LEVELS:
+        raise HTTPException(
+            status_code=400,
+            detail=f"Invalid log level '{body.level}'. Must be one of: {', '.join(sorted(_VALID_LOG_LEVELS))}",
+        )
+    level_int = getattr(logging, level_name)
+    root = logging.getLogger()
+    root.setLevel(level_int)
+    # Also update all handlers so they actually emit at the new level
+    for handler in root.handlers:
+        handler.setLevel(level_int)
+    logger.info("Log level changed to %s", level_name)
+    return LogLevelResponse(level=level_name)

server/src/wled_controller/api/routes/templates.py

@@ -0,0 +1,543 @@
+"""Capture template, engine, and filter routes."""
+
+import base64
+import io
+import time
+
+import numpy as np
+from PIL import Image
+from fastapi import APIRouter, HTTPException, Depends, Query, WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_cspt_store,
+    get_picture_source_store,
+    get_pp_template_store,
+    get_template_store,
+)
+from wled_controller.api.schemas.common import (
+    CaptureImage,
+    PerformanceMetrics,
+    TemplateTestResponse,
+)
+from wled_controller.api.schemas.templates import (
+    EngineInfo,
+    EngineListResponse,
+    TemplateCreate,
+    TemplateListResponse,
+    TemplateResponse,
+    TemplateTestRequest,
+    TemplateUpdate,
+)
+from wled_controller.api.schemas.filters import (
+    FilterOptionDefSchema,
+    FilterTypeListResponse,
+    FilterTypeResponse,
+)
+from wled_controller.core.capture_engines import EngineRegistry
+from wled_controller.core.filters import FilterRegistry
+from wled_controller.storage.template_store import TemplateStore
+from wled_controller.storage.picture_source_store import PictureSourceStore
+from wled_controller.storage.picture_source import ScreenCapturePictureSource
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+# ===== CAPTURE TEMPLATE ENDPOINTS =====
+
+@router.get("/api/v1/capture-templates", response_model=TemplateListResponse, tags=["Templates"])
+async def list_templates(
+    _auth: AuthRequired,
+    template_store: TemplateStore = Depends(get_template_store),
+):
+    """List all capture templates."""
+    try:
+        templates = template_store.get_all_templates()
+
+        template_responses = [
+            TemplateResponse(
+                id=t.id,
+                name=t.name,
+                engine_type=t.engine_type,
+                engine_config=t.engine_config,
+                tags=t.tags,
+                created_at=t.created_at,
+                updated_at=t.updated_at,
+                description=t.description,
+            )
+            for t in templates
+        ]
+
+        return TemplateListResponse(
+            templates=template_responses,
+            count=len(template_responses),
+        )
+
+    except Exception as e:
+        logger.error(f"Failed to list templates: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/capture-templates", response_model=TemplateResponse, tags=["Templates"], status_code=201)
+async def create_template(
+    template_data: TemplateCreate,
+    _auth: AuthRequired,
+    template_store: TemplateStore = Depends(get_template_store),
+):
+    """Create a new capture template."""
+    try:
+        template = template_store.create_template(
+            name=template_data.name,
+            engine_type=template_data.engine_type,
+            engine_config=template_data.engine_config,
+            description=template_data.description,
+            tags=template_data.tags,
+        )
+
+        fire_entity_event("capture_template", "created", template.id)
+        return TemplateResponse(
+            id=template.id,
+            name=template.name,
+            engine_type=template.engine_type,
+            engine_config=template.engine_config,
+            tags=template.tags,
+            created_at=template.created_at,
+            updated_at=template.updated_at,
+            description=template.description,
+        )
+
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to create template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/capture-templates/{template_id}", response_model=TemplateResponse, tags=["Templates"])
+async def get_template(
+    template_id: str,
+    _auth: AuthRequired,
+    template_store: TemplateStore = Depends(get_template_store),
+):
+    """Get template by ID."""
+    try:
+        template = template_store.get_template(template_id)
+    except ValueError:
+        raise HTTPException(status_code=404, detail=f"Template {template_id} not found")
+
+    return TemplateResponse(
+        id=template.id,
+        name=template.name,
+        engine_type=template.engine_type,
+        engine_config=template.engine_config,
+        tags=template.tags,
+        created_at=template.created_at,
+        updated_at=template.updated_at,
+        description=template.description,
+    )
+
+
+@router.put("/api/v1/capture-templates/{template_id}", response_model=TemplateResponse, tags=["Templates"])
+async def update_template(
+    template_id: str,
+    update_data: TemplateUpdate,
+    _auth: AuthRequired,
+    template_store: TemplateStore = Depends(get_template_store),
+):
+    """Update a template."""
+    try:
+        template = template_store.update_template(
+            template_id=template_id,
+            name=update_data.name,
+            engine_type=update_data.engine_type,
+            engine_config=update_data.engine_config,
+            description=update_data.description,
+            tags=update_data.tags,
+        )
+
+        fire_entity_event("capture_template", "updated", template_id)
+        return TemplateResponse(
+            id=template.id,
+            name=template.name,
+            engine_type=template.engine_type,
+            engine_config=template.engine_config,
+            tags=template.tags,
+            created_at=template.created_at,
+            updated_at=template.updated_at,
+            description=template.description,
+        )
+
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to update template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.delete("/api/v1/capture-templates/{template_id}", status_code=204, tags=["Templates"])
+async def delete_template(
+    template_id: str,
+    _auth: AuthRequired,
+    template_store: TemplateStore = Depends(get_template_store),
+    stream_store: PictureSourceStore = Depends(get_picture_source_store),
+):
+    """Delete a template.
+
+    Validates that no streams are currently using this template before deletion.
+    """
+    try:
+        # Check if any streams are using this template
+        streams_using_template = []
+        for stream in stream_store.get_all_streams():
+            if isinstance(stream, ScreenCapturePictureSource) and stream.capture_template_id == template_id:
+                streams_using_template.append(stream.name)
+
+        if streams_using_template:
+            stream_list = ", ".join(streams_using_template)
+            raise HTTPException(
+                status_code=409,
+                detail=f"Cannot delete template: it is used by the following stream(s): {stream_list}. "
+                       f"Please reassign these streams to a different template before deleting."
+            )
+
+        # Proceed with deletion
+        template_store.delete_template(template_id)
+        fire_entity_event("capture_template", "deleted", template_id)
+
+    except HTTPException:
+        raise  # Re-raise HTTP exceptions as-is
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        logger.error(f"Failed to delete template: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/api/v1/capture-engines", response_model=EngineListResponse, tags=["Templates"])
+async def list_engines(_auth: AuthRequired):
+    """List all registered capture engines.
+
+    Returns every registered engine with an ``available`` flag showing
+    whether it can be used on the current system.
+    """
+    try:
+        available_set = set(EngineRegistry.get_available_engines())
+        all_engines = EngineRegistry.get_all_engines()
+
+        engines = []
+        for engine_type, engine_class in all_engines.items():
+            engines.append(
+                EngineInfo(
+                    type=engine_type,
+                    name=engine_type.upper(),
+                    default_config=engine_class.get_default_config(),
+                    available=(engine_type in available_set),
+                    has_own_displays=getattr(engine_class, 'HAS_OWN_DISPLAYS', False),
+                )
+            )
+
+        return EngineListResponse(engines=engines, count=len(engines))
+
+    except Exception as e:
+        logger.error(f"Failed to list engines: {e}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.post("/api/v1/capture-templates/test", response_model=TemplateTestResponse, tags=["Templates"])
+def test_template(
+    test_request: TemplateTestRequest,
+    _auth: AuthRequired,
+):
+    """Test a capture template configuration.
+
+    Uses sync ``def`` so FastAPI runs it in a thread pool — the engine
+    initialisation and capture loop are blocking and would stall the
+    event loop if run in an ``async def`` handler.
+
+    Temporarily instantiates an engine with the provided configuration,
+    captures frames for the specified duration, and returns actual FPS metrics.
+    """
+    stream = None
+    try:
+        # Validate engine type
+        if test_request.engine_type not in EngineRegistry.get_available_engines():
+            raise HTTPException(
+                status_code=400,
+                detail=f"Engine '{test_request.engine_type}' is not available on this system"
+            )
+
+        # Create and initialize capture stream
+        stream = EngineRegistry.create_stream(
+            test_request.engine_type, test_request.display_index, test_request.engine_config
+        )
+        stream.initialize()
+
+        # Run sustained capture test
+        logger.info(f"Starting {test_request.capture_duration}s capture test with {test_request.engine_type}")
+
+        frame_count = 0
+        total_capture_time = 0.0
+        last_frame = None
+
+        start_time = time.perf_counter()
+        end_time = start_time + test_request.capture_duration
+
+        while time.perf_counter() < end_time:
+            capture_start = time.perf_counter()
+            screen_capture = stream.capture_frame()
+            capture_elapsed = time.perf_counter() - capture_start
+
+            # Skip if no new frame (screen unchanged); yield CPU
+            if screen_capture is None:
+                time.sleep(0.005)
+                continue
+
+            total_capture_time += capture_elapsed
+            frame_count += 1
+            last_frame = screen_capture
+
+        actual_duration = time.perf_counter() - start_time
+
+        logger.info(f"Captured {frame_count} frames in {actual_duration:.2f}s")
+
+        # Use the last captured frame for preview
+        if last_frame is None:
+            raise RuntimeError("No frames captured during test")
+
+        # Convert numpy array to PIL Image
+        if isinstance(last_frame.image, np.ndarray):
+            pil_image = Image.fromarray(last_frame.image)
+        else:
+            raise ValueError("Unexpected image format from engine")
+
+        # Create thumbnail (640px wide, maintain aspect ratio)
+        thumbnail_width = 640
+        aspect_ratio = pil_image.height / pil_image.width
+        thumbnail_height = int(thumbnail_width * aspect_ratio)
+        thumbnail = pil_image.copy()
+        thumbnail.thumbnail((thumbnail_width, thumbnail_height), Image.Resampling.LANCZOS)
+
+        # Encode thumbnail as JPEG
+        img_buffer = io.BytesIO()
+        thumbnail.save(img_buffer, format='JPEG', quality=85)
+        img_buffer.seek(0)
+        thumbnail_b64 = base64.b64encode(img_buffer.getvalue()).decode('utf-8')
+        thumbnail_data_uri = f"data:image/jpeg;base64,{thumbnail_b64}"
+
+        # Encode full-resolution image as JPEG
+        full_buffer = io.BytesIO()
+        pil_image.save(full_buffer, format='JPEG', quality=90)
+        full_buffer.seek(0)
+        full_b64 = base64.b64encode(full_buffer.getvalue()).decode('utf-8')
+        full_data_uri = f"data:image/jpeg;base64,{full_b64}"
+
+        # Calculate metrics
+        actual_fps = frame_count / actual_duration if actual_duration > 0 else 0
+        avg_capture_time_ms = (total_capture_time / frame_count * 1000) if frame_count > 0 else 0
+
+        width, height = pil_image.size
+
+        return TemplateTestResponse(
+            full_capture=CaptureImage(
+                image=thumbnail_data_uri,
+                full_image=full_data_uri,
+                width=width,
+                height=height,
+                thumbnail_width=thumbnail_width,
+                thumbnail_height=thumbnail_height,
+            ),
+            border_extraction=None,
+            performance=PerformanceMetrics(
+                capture_duration_s=actual_duration,
+                frame_count=frame_count,
+                actual_fps=actual_fps,
+                avg_capture_time_ms=avg_capture_time_ms,
+            ),
+        )
+
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except RuntimeError as e:
+        raise HTTPException(status_code=500, detail=f"Engine error: {str(e)}")
+    except Exception as e:
+        logger.error(f"Failed to test template: {e}", exc_info=True)
+        raise HTTPException(status_code=500, detail=str(e))
+    finally:
+        if stream:
+            try:
+                stream.cleanup()
+            except Exception as e:
+                logger.error(f"Error cleaning up test stream: {e}")
+
+
+# ===== REAL-TIME CAPTURE TEMPLATE TEST WEBSOCKET =====
+
+
+@router.websocket("/api/v1/capture-templates/test/ws")
+async def test_template_ws(
+    websocket: WebSocket,
+    token: str = Query(""),
+):
+    """WebSocket for capture template test with intermediate frame previews.
+
+    Config is sent as the first client message (JSON with engine_type,
+    engine_config, display_index, capture_duration).
+    """
+    from wled_controller.api.routes._test_helpers import (
+        authenticate_ws_token,
+        stream_capture_test,
+    )
+
+    if not authenticate_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    await websocket.accept()
+
+    # Read config from first client message
+    try:
+        config = await websocket.receive_json()
+    except Exception as e:
+        await websocket.send_json({"type": "error", "detail": f"Expected JSON config: {e}"})
+        await websocket.close(code=4003)
+        return
+
+    engine_type = config.get("engine_type", "")
+    engine_config = config.get("engine_config", {})
+    display_index = config.get("display_index", 0)
+    duration = float(config.get("capture_duration", 5.0))
+    pw = int(config.get("preview_width", 0)) or None
+
+    if engine_type not in EngineRegistry.get_available_engines():
+        await websocket.send_json({"type": "error", "detail": f"Engine '{engine_type}' not available"})
+        await websocket.close(code=4003)
+        return
+
+    # Engine factory — creates + initializes engine inside the capture thread
+    # to avoid thread-affinity issues (e.g. MSS uses thread-local state)
+    def engine_factory():
+        s = EngineRegistry.create_stream(engine_type, display_index, engine_config)
+        s.initialize()
+        return s
+
+    logger.info(f"Capture template test WS connected ({engine_type}, display {display_index}, {duration}s)")
+
+    try:
+        await stream_capture_test(websocket, engine_factory, duration, preview_width=pw)
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"Capture template test WS error: {e}")
+    finally:
+        logger.info("Capture template test WS disconnected")
+
+
+# ===== FILTER TYPE ENDPOINTS =====
+
+@router.get("/api/v1/filters", response_model=FilterTypeListResponse, tags=["Filters"])
+async def list_filter_types(
+    _auth: AuthRequired,
+    pp_store=Depends(get_pp_template_store),
+):
+    """List all available postprocessing filter types and their options schemas."""
+    all_filters = FilterRegistry.get_all()
+
+    # Pre-build template choices for the filter_template filter
+    template_choices = None
+    if pp_store:
+        try:
+            templates = pp_store.get_all_templates()
+            template_choices = [{"value": t.id, "label": t.name} for t in templates]
+        except Exception:
+            template_choices = []
+
+    responses = []
+    for filter_id, filter_cls in all_filters.items():
+        schema = filter_cls.get_options_schema()
+        opt_schemas = []
+        for opt in schema:
+            choices = opt.choices
+            # Enrich filter_template choices with current template list
+            if filter_id == "filter_template" and opt.key == "template_id" and template_choices is not None:
+                choices = template_choices
+            opt_schemas.append(FilterOptionDefSchema(
+                key=opt.key,
+                label=opt.label,
+                type=opt.option_type,
+                default=opt.default,
+                min_value=opt.min_value,
+                max_value=opt.max_value,
+                step=opt.step,
+                choices=choices,
+            ))
+        responses.append(FilterTypeResponse(
+            filter_id=filter_cls.filter_id,
+            filter_name=filter_cls.filter_name,
+            options_schema=opt_schemas,
+        ))
+    return FilterTypeListResponse(filters=responses, count=len(responses))
+
+
+@router.get("/api/v1/strip-filters", response_model=FilterTypeListResponse, tags=["Filters"])
+async def list_strip_filter_types(
+    _auth: AuthRequired,
+    cspt_store=Depends(get_cspt_store),
+):
+    """List filter types that support 1D LED strip processing."""
+    all_filters = FilterRegistry.get_all()
+
+    # Pre-build template choices for the css_filter_template filter
+    cspt_choices = None
+    if cspt_store:
+        try:
+            templates = cspt_store.get_all_templates()
+            cspt_choices = [{"value": t.id, "label": t.name} for t in templates]
+        except Exception:
+            cspt_choices = []
+
+    responses = []
+    for filter_id, filter_cls in all_filters.items():
+        if not getattr(filter_cls, "supports_strip", True):
+            continue
+        schema = filter_cls.get_options_schema()
+        opt_schemas = []
+        for opt in schema:
+            choices = opt.choices
+            if filter_id == "css_filter_template" and opt.key == "template_id" and cspt_choices is not None:
+                choices = cspt_choices
+            opt_schemas.append(FilterOptionDefSchema(
+                key=opt.key,
+                label=opt.label,
+                type=opt.option_type,
+                default=opt.default,
+                min_value=opt.min_value,
+                max_value=opt.max_value,
+                step=opt.step,
+                choices=choices,
+            ))
+        responses.append(FilterTypeResponse(
+            filter_id=filter_cls.filter_id,
+            filter_name=filter_cls.filter_name,
+            options_schema=opt_schemas,
+        ))
+    return FilterTypeListResponse(filters=responses, count=len(responses))

server/src/wled_controller/api/routes/value_sources.py

@@ -0,0 +1,253 @@
+"""Value source routes: CRUD for value sources."""
+
+import asyncio
+from typing import Optional
+
+from fastapi import APIRouter, Depends, HTTPException, Query, WebSocket, WebSocketDisconnect
+
+from wled_controller.api.auth import AuthRequired
+from wled_controller.api.dependencies import (
+    fire_entity_event,
+    get_output_target_store,
+    get_processor_manager,
+    get_value_source_store,
+)
+from wled_controller.api.schemas.value_sources import (
+    ValueSourceCreate,
+    ValueSourceListResponse,
+    ValueSourceResponse,
+    ValueSourceUpdate,
+)
+from wled_controller.storage.value_source import ValueSource
+from wled_controller.storage.value_source_store import ValueSourceStore
+from wled_controller.storage.output_target_store import OutputTargetStore
+from wled_controller.core.processing.processor_manager import ProcessorManager
+from wled_controller.utils import get_logger
+from wled_controller.storage.base_store import EntityNotFoundError
+
+logger = get_logger(__name__)
+
+router = APIRouter()
+
+
+def _to_response(source: ValueSource) -> ValueSourceResponse:
+    """Convert a ValueSource to a ValueSourceResponse."""
+    d = source.to_dict()
+    return ValueSourceResponse(
+        id=d["id"],
+        name=d["name"],
+        source_type=d["source_type"],
+        value=d.get("value"),
+        waveform=d.get("waveform"),
+        speed=d.get("speed"),
+        min_value=d.get("min_value"),
+        max_value=d.get("max_value"),
+        audio_source_id=d.get("audio_source_id"),
+        mode=d.get("mode"),
+        sensitivity=d.get("sensitivity"),
+        smoothing=d.get("smoothing"),
+        auto_gain=d.get("auto_gain"),
+        schedule=d.get("schedule"),
+        picture_source_id=d.get("picture_source_id"),
+        scene_behavior=d.get("scene_behavior"),
+        use_real_time=d.get("use_real_time"),
+        latitude=d.get("latitude"),
+        description=d.get("description"),
+        tags=d.get("tags", []),
+        created_at=source.created_at,
+        updated_at=source.updated_at,
+    )
+
+
+@router.get("/api/v1/value-sources", response_model=ValueSourceListResponse, tags=["Value Sources"])
+async def list_value_sources(
+    _auth: AuthRequired,
+    source_type: Optional[str] = Query(None, description="Filter by source_type: static, animated, audio, adaptive_time, or adaptive_scene"),
+    store: ValueSourceStore = Depends(get_value_source_store),
+):
+    """List all value sources, optionally filtered by type."""
+    sources = store.get_all_sources()
+    if source_type:
+        sources = [s for s in sources if s.source_type == source_type]
+    return ValueSourceListResponse(
+        sources=[_to_response(s) for s in sources],
+        count=len(sources),
+    )
+
+
+@router.post("/api/v1/value-sources", response_model=ValueSourceResponse, status_code=201, tags=["Value Sources"])
+async def create_value_source(
+    data: ValueSourceCreate,
+    _auth: AuthRequired,
+    store: ValueSourceStore = Depends(get_value_source_store),
+):
+    """Create a new value source."""
+    try:
+        source = store.create_source(
+            name=data.name,
+            source_type=data.source_type,
+            value=data.value,
+            waveform=data.waveform,
+            speed=data.speed,
+            min_value=data.min_value,
+            max_value=data.max_value,
+            audio_source_id=data.audio_source_id,
+            mode=data.mode,
+            sensitivity=data.sensitivity,
+            smoothing=data.smoothing,
+            description=data.description,
+            schedule=data.schedule,
+            picture_source_id=data.picture_source_id,
+            scene_behavior=data.scene_behavior,
+            auto_gain=data.auto_gain,
+            use_real_time=data.use_real_time,
+            latitude=data.latitude,
+            tags=data.tags,
+        )
+        fire_entity_event("value_source", "created", source.id)
+        return _to_response(source)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.get("/api/v1/value-sources/{source_id}", response_model=ValueSourceResponse, tags=["Value Sources"])
+async def get_value_source(
+    source_id: str,
+    _auth: AuthRequired,
+    store: ValueSourceStore = Depends(get_value_source_store),
+):
+    """Get a value source by ID."""
+    try:
+        source = store.get_source(source_id)
+        return _to_response(source)
+    except ValueError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+
+@router.put("/api/v1/value-sources/{source_id}", response_model=ValueSourceResponse, tags=["Value Sources"])
+async def update_value_source(
+    source_id: str,
+    data: ValueSourceUpdate,
+    _auth: AuthRequired,
+    store: ValueSourceStore = Depends(get_value_source_store),
+    pm: ProcessorManager = Depends(get_processor_manager),
+):
+    """Update an existing value source."""
+    try:
+        source = store.update_source(
+            source_id=source_id,
+            name=data.name,
+            value=data.value,
+            waveform=data.waveform,
+            speed=data.speed,
+            min_value=data.min_value,
+            max_value=data.max_value,
+            audio_source_id=data.audio_source_id,
+            mode=data.mode,
+            sensitivity=data.sensitivity,
+            smoothing=data.smoothing,
+            description=data.description,
+            schedule=data.schedule,
+            picture_source_id=data.picture_source_id,
+            scene_behavior=data.scene_behavior,
+            auto_gain=data.auto_gain,
+            use_real_time=data.use_real_time,
+            latitude=data.latitude,
+            tags=data.tags,
+        )
+        # Hot-reload running value streams
+        pm.update_value_source(source_id)
+        fire_entity_event("value_source", "updated", source_id)
+        return _to_response(source)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@router.delete("/api/v1/value-sources/{source_id}", status_code=204, tags=["Value Sources"])
+async def delete_value_source(
+    source_id: str,
+    _auth: AuthRequired,
+    store: ValueSourceStore = Depends(get_value_source_store),
+    target_store: OutputTargetStore = Depends(get_output_target_store),
+):
+    """Delete a value source."""
+    try:
+        # Check if any targets reference this value source
+        from wled_controller.storage.wled_output_target import WledOutputTarget
+        for target in target_store.get_all_targets():
+            if isinstance(target, WledOutputTarget):
+                if getattr(target, "brightness_value_source_id", "") == source_id:
+                    raise ValueError(
+                        f"Cannot delete: referenced by target '{target.name}'"
+                    )
+
+        store.delete_source(source_id)
+        fire_entity_event("value_source", "deleted", source_id)
+    except EntityNotFoundError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+# ===== REAL-TIME VALUE SOURCE TEST WEBSOCKET =====
+
+
+@router.websocket("/api/v1/value-sources/{source_id}/test/ws")
+async def test_value_source_ws(
+    websocket: WebSocket,
+    source_id: str,
+    token: str = Query(""),
+):
+    """WebSocket for real-time value source output. Auth via ?token=<api_key>.
+
+    Acquires a ValueStream for the given source, polls get_value() at ~20 Hz,
+    and streams {value: float} JSON to the client.
+    """
+    from wled_controller.api.auth import verify_ws_token
+    if not verify_ws_token(token):
+        await websocket.close(code=4001, reason="Unauthorized")
+        return
+
+    # Validate source exists
+    store = get_value_source_store()
+    try:
+        store.get_source(source_id)
+    except ValueError as e:
+        await websocket.close(code=4004, reason=str(e))
+        return
+
+    # Acquire a value stream
+    manager = get_processor_manager()
+    vsm = manager.value_stream_manager
+    if vsm is None:
+        await websocket.close(code=4003, reason="Value stream manager not available")
+        return
+
+    try:
+        stream = vsm.acquire(source_id)
+    except Exception as e:
+        await websocket.close(code=4003, reason=str(e))
+        return
+
+    await websocket.accept()
+    logger.info(f"Value source test WebSocket connected for {source_id}")
+
+    try:
+        while True:
+            value = stream.get_value()
+            await websocket.send_json({"value": round(value, 4)})
+            await asyncio.sleep(0.05)
+    except WebSocketDisconnect:
+        pass
+    except Exception as e:
+        logger.error(f"Value source test WebSocket error for {source_id}: {e}")
+    finally:
+        vsm.release(source_id)
+        logger.info(f"Value source test WebSocket disconnected for {source_id}")

server/src/wled_controller/api/routes/webhooks.py

@@ -0,0 +1,57 @@
+"""Webhook endpoint for automation triggers.
+
+External services call POST /api/v1/webhooks/{token} with a JSON body
+containing {"action": "activate"} or {"action": "deactivate"} to control
+automations that have a webhook condition.  No API-key auth is required —
+the secret token itself authenticates the caller.
+"""
+
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel, Field
+
+from wled_controller.api.dependencies import get_automation_engine, get_automation_store
+from wled_controller.core.automations.automation_engine import AutomationEngine
+from wled_controller.storage.automation import WebhookCondition
+from wled_controller.storage.automation_store import AutomationStore
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+router = APIRouter()
+
+
+class WebhookPayload(BaseModel):
+    action: str = Field(description="'activate' or 'deactivate'")
+
+
+@router.post(
+    "/api/v1/webhooks/{token}",
+    tags=["Webhooks"],
+)
+async def handle_webhook(
+    token: str,
+    body: WebhookPayload,
+    store: AutomationStore = Depends(get_automation_store),
+    engine: AutomationEngine = Depends(get_automation_engine),
+):
+    """Receive a webhook call and set the corresponding condition state."""
+    if body.action not in ("activate", "deactivate"):
+        raise HTTPException(status_code=400, detail="action must be 'activate' or 'deactivate'")
+
+    # Find the automation that owns this token
+    for automation in store.get_all_automations():
+        for condition in automation.conditions:
+            if isinstance(condition, WebhookCondition) and condition.token == token:
+                active = body.action == "activate"
+                await engine.set_webhook_state(token, active)
+                logger.info(
+                    "Webhook %s: automation '%s' (%s) → %s",
+                    token[:8], automation.name, automation.id, body.action,
+                )
+                return {
+                    "ok": True,
+                    "automation_id": automation.id,
+                    "automation_name": automation.name,
+                    "action": body.action,
+                }
+
+    raise HTTPException(status_code=404, detail="Webhook token not found")

server/src/wled_controller/api/schemas.py

@@ -1,322 +0,0 @@
-"""Pydantic schemas for API request and response models."""
-
-from datetime import datetime
-from typing import Dict, List, Literal, Optional
-
-from pydantic import BaseModel, Field, HttpUrl
-
-from wled_controller.core.processor_manager import DEFAULT_STATE_CHECK_INTERVAL
-
-
-# Health and Version Schemas
-
-class HealthResponse(BaseModel):
-    """Health check response."""
-
-    status: Literal["healthy", "unhealthy"] = Field(description="Service health status")
-    timestamp: datetime = Field(description="Current server time")
-    version: str = Field(description="Application version")
-
-
-class VersionResponse(BaseModel):
-    """Version information response."""
-
-    version: str = Field(description="Application version")
-    python_version: str = Field(description="Python version")
-    api_version: str = Field(description="API version")
-
-
-# Display Schemas
-
-class DisplayInfo(BaseModel):
-    """Display/monitor information."""
-
-    index: int = Field(description="Display index")
-    name: str = Field(description="Display name")
-    width: int = Field(description="Display width in pixels")
-    height: int = Field(description="Display height in pixels")
-    x: int = Field(description="Display X position")
-    y: int = Field(description="Display Y position")
-    is_primary: bool = Field(default=False, description="Whether this is the primary display")
-    refresh_rate: int = Field(description="Display refresh rate in Hz")
-
-
-class DisplayListResponse(BaseModel):
-    """List of available displays."""
-
-    displays: List[DisplayInfo] = Field(description="Available displays")
-    count: int = Field(description="Number of displays")
-
-
-# Device Schemas
-
-class DeviceCreate(BaseModel):
-    """Request to create/attach a WLED device."""
-
-    name: str = Field(description="Device name", min_length=1, max_length=100)
-    url: str = Field(description="WLED device URL (e.g., http://192.168.1.100)")
-    capture_template_id: Optional[str] = Field(None, description="Capture template ID (uses first available if not set or invalid)")
-
-
-class DeviceUpdate(BaseModel):
-    """Request to update device information."""
-
-    name: Optional[str] = Field(None, description="Device name", min_length=1, max_length=100)
-    url: Optional[str] = Field(None, description="WLED device URL")
-    enabled: Optional[bool] = Field(None, description="Whether device is enabled")
-    capture_template_id: Optional[str] = Field(None, description="Capture template ID")
-
-
-class ColorCorrection(BaseModel):
-    """Color correction settings."""
-
-    gamma: float = Field(default=2.2, description="Gamma correction", ge=0.1, le=5.0)
-    saturation: float = Field(default=1.0, description="Saturation multiplier", ge=0.0, le=2.0)
-    brightness: float = Field(default=1.0, description="Brightness multiplier", ge=0.0, le=1.0)
-
-
-class ProcessingSettings(BaseModel):
-    """Processing settings for a device."""
-
-    display_index: int = Field(default=0, description="Display to capture", ge=0)
-    fps: int = Field(default=30, description="Target frames per second", ge=1, le=60)
-    border_width: int = Field(default=10, description="Border width in pixels", ge=1, le=100)
-    brightness: float = Field(default=1.0, description="Global brightness (0.0-1.0)", ge=0.0, le=1.0)
-    state_check_interval: int = Field(
-        default=DEFAULT_STATE_CHECK_INTERVAL, ge=5, le=600,
-        description="Seconds between WLED health checks"
-    )
-    color_correction: Optional[ColorCorrection] = Field(
-        default_factory=ColorCorrection,
-        description="Color correction settings"
-    )
-
-
-class Calibration(BaseModel):
-    """Calibration configuration for pixel-to-LED mapping."""
-
-    layout: Literal["clockwise", "counterclockwise"] = Field(
-        default="clockwise",
-        description="LED strip layout direction"
-    )
-    start_position: Literal["top_left", "top_right", "bottom_left", "bottom_right"] = Field(
-        default="bottom_left",
-        description="Starting corner of the LED strip"
-    )
-    offset: int = Field(
-        default=0,
-        ge=0,
-        description="Number of LEDs from physical LED 0 to start corner (along strip direction)"
-    )
-    leds_top: int = Field(default=0, ge=0, description="Number of LEDs on the top edge")
-    leds_right: int = Field(default=0, ge=0, description="Number of LEDs on the right edge")
-    leds_bottom: int = Field(default=0, ge=0, description="Number of LEDs on the bottom edge")
-    leds_left: int = Field(default=0, ge=0, description="Number of LEDs on the left edge")
-    # Per-edge span: fraction of screen side covered by LEDs (0.0–1.0)
-    span_top_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of top edge coverage")
-    span_top_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of top edge coverage")
-    span_right_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of right edge coverage")
-    span_right_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of right edge coverage")
-    span_bottom_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of bottom edge coverage")
-    span_bottom_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of bottom edge coverage")
-    span_left_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of left edge coverage")
-    span_left_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of left edge coverage")
-
-
-class CalibrationTestModeRequest(BaseModel):
-    """Request to set calibration test mode with multiple edges."""
-
-    edges: Dict[str, List[int]] = Field(
-        default_factory=dict,
-        description="Map of active edge names to RGB colors. "
-                    "E.g. {'top': [255, 0, 0], 'left': [255, 255, 0]}. "
-                    "Empty dict = exit test mode."
-    )
-
-
-class CalibrationTestModeResponse(BaseModel):
-    """Response for calibration test mode."""
-
-    test_mode: bool = Field(description="Whether test mode is active")
-    active_edges: List[str] = Field(default_factory=list, description="Currently lit edges")
-    device_id: str = Field(description="Device ID")
-
-
-class DeviceResponse(BaseModel):
-    """Device information response."""
-
-    id: str = Field(description="Device ID")
-    name: str = Field(description="Device name")
-    url: str = Field(description="WLED device URL")
-    led_count: int = Field(description="Total number of LEDs")
-    enabled: bool = Field(description="Whether device is enabled")
-    status: Literal["connected", "disconnected", "error"] = Field(
-        description="Connection status"
-    )
-    settings: ProcessingSettings = Field(description="Processing settings")
-    calibration: Optional[Calibration] = Field(None, description="Calibration configuration")
-    capture_template_id: str = Field(description="ID of assigned capture template")
-    created_at: datetime = Field(description="Creation timestamp")
-    updated_at: datetime = Field(description="Last update timestamp")
-
-
-class DeviceListResponse(BaseModel):
-    """List of devices response."""
-
-    devices: List[DeviceResponse] = Field(description="List of devices")
-    count: int = Field(description="Number of devices")
-
-
-# Processing State Schemas
-
-class ProcessingState(BaseModel):
-    """Processing state for a device."""
-
-    device_id: str = Field(description="Device ID")
-    processing: bool = Field(description="Whether processing is active")
-    fps_actual: Optional[float] = Field(None, description="Actual FPS achieved")
-    fps_target: int = Field(description="Target FPS")
-    display_index: int = Field(description="Current display index")
-    last_update: Optional[datetime] = Field(None, description="Last successful update")
-    errors: List[str] = Field(default_factory=list, description="Recent errors")
-    wled_online: bool = Field(default=False, description="Whether WLED device is reachable")
-    wled_latency_ms: Optional[float] = Field(None, description="WLED health check latency in ms")
-    wled_name: Optional[str] = Field(None, description="WLED device name")
-    wled_version: Optional[str] = Field(None, description="WLED firmware version")
-    wled_led_count: Optional[int] = Field(None, description="LED count reported by WLED device")
-    wled_rgbw: Optional[bool] = Field(None, description="Whether WLED device uses RGBW LEDs")
-    wled_led_type: Optional[str] = Field(None, description="LED chip type (e.g. WS2812B, SK6812 RGBW)")
-    wled_last_checked: Optional[datetime] = Field(None, description="Last health check time")
-    wled_error: Optional[str] = Field(None, description="Last health check error")
-
-
-class MetricsResponse(BaseModel):
-    """Device metrics response."""
-
-    device_id: str = Field(description="Device ID")
-    processing: bool = Field(description="Whether processing is active")
-    fps_actual: Optional[float] = Field(None, description="Actual FPS")
-    fps_target: int = Field(description="Target FPS")
-    uptime_seconds: float = Field(description="Processing uptime in seconds")
-    frames_processed: int = Field(description="Total frames processed")
-    errors_count: int = Field(description="Total error count")
-    last_error: Optional[str] = Field(None, description="Last error message")
-    last_update: Optional[datetime] = Field(None, description="Last update timestamp")
-
-
-# Error Schemas
-
-class ErrorResponse(BaseModel):
-    """Error response."""
-
-    error: str = Field(description="Error type")
-    message: str = Field(description="Error message")
-    detail: Optional[Dict] = Field(None, description="Additional error details")
-    timestamp: datetime = Field(default_factory=datetime.utcnow, description="Error timestamp")
-
-
-# Capture Template Schemas
-
-class TemplateCreate(BaseModel):
-    """Request to create a capture template."""
-
-    name: str = Field(description="Template name", min_length=1, max_length=100)
-    engine_type: str = Field(description="Engine type (e.g., 'mss', 'dxcam', 'wgc')", min_length=1)
-    engine_config: Dict = Field(default_factory=dict, description="Engine-specific configuration")
-    description: Optional[str] = Field(None, description="Template description", max_length=500)
-
-
-class TemplateUpdate(BaseModel):
-    """Request to update a template."""
-
-    name: Optional[str] = Field(None, description="Template name", min_length=1, max_length=100)
-    engine_config: Optional[Dict] = Field(None, description="Engine-specific configuration")
-    description: Optional[str] = Field(None, description="Template description", max_length=500)
-
-
-class TemplateResponse(BaseModel):
-    """Template information response."""
-
-    id: str = Field(description="Template ID")
-    name: str = Field(description="Template name")
-    engine_type: str = Field(description="Engine type identifier")
-    engine_config: Dict = Field(description="Engine-specific configuration")
-    is_default: bool = Field(description="Whether this is a system default template")
-    created_at: datetime = Field(description="Creation timestamp")
-    updated_at: datetime = Field(description="Last update timestamp")
-    description: Optional[str] = Field(None, description="Template description")
-
-
-class TemplateListResponse(BaseModel):
-    """List of templates response."""
-
-    templates: List[TemplateResponse] = Field(description="List of templates")
-    count: int = Field(description="Number of templates")
-
-
-class EngineInfo(BaseModel):
-    """Capture engine information."""
-
-    type: str = Field(description="Engine type identifier (e.g., 'mss', 'dxcam')")
-    name: str = Field(description="Human-readable engine name")
-    default_config: Dict = Field(description="Default configuration for this engine")
-    available: bool = Field(description="Whether engine is available on this system")
-
-
-class EngineListResponse(BaseModel):
-    """List of available engines response."""
-
-    engines: List[EngineInfo] = Field(description="Available capture engines")
-    count: int = Field(description="Number of engines")
-
-
-class TemplateAssignment(BaseModel):
-    """Request to assign template to device."""
-
-    template_id: str = Field(description="Template ID to assign")
-
-
-class TemplateTestRequest(BaseModel):
-    """Request to test a capture template."""
-
-    engine_type: str = Field(description="Capture engine type to test")
-    engine_config: Dict = Field(default={}, description="Engine configuration")
-    display_index: int = Field(description="Display index to capture")
-    border_width: int = Field(default=10, ge=1, le=100, description="Border width in pixels")
-    capture_duration: float = Field(default=5.0, ge=1.0, le=30.0, description="Duration to capture in seconds")
-
-
-class CaptureImage(BaseModel):
-    """Captured image with metadata."""
-
-    image: str = Field(description="Base64-encoded image data")
-    width: int = Field(description="Image width in pixels")
-    height: int = Field(description="Image height in pixels")
-    thumbnail_width: Optional[int] = Field(None, description="Thumbnail width (if resized)")
-    thumbnail_height: Optional[int] = Field(None, description="Thumbnail height (if resized)")
-
-
-class BorderExtraction(BaseModel):
-    """Extracted border images."""
-
-    top: str = Field(description="Base64-encoded top border image")
-    right: str = Field(description="Base64-encoded right border image")
-    bottom: str = Field(description="Base64-encoded bottom border image")
-    left: str = Field(description="Base64-encoded left border image")
-
-
-class PerformanceMetrics(BaseModel):
-    """Performance metrics for template test."""
-
-    capture_duration_s: float = Field(description="Total capture duration in seconds")
-    frame_count: int = Field(description="Number of frames captured")
-    actual_fps: float = Field(description="Actual FPS (frame_count / duration)")
-    avg_capture_time_ms: float = Field(description="Average time per frame capture in milliseconds")
-
-
-class TemplateTestResponse(BaseModel):
-    """Response from template test."""
-
-    full_capture: CaptureImage = Field(description="Full screen capture with thumbnail")
-    border_extraction: Optional[BorderExtraction] = Field(None, description="Extracted border images (deprecated)")
-    performance: PerformanceMetrics = Field(description="Performance metrics")

server/src/wled_controller/api/schemas/__init__.py

@@ -0,0 +1,137 @@
+"""Pydantic schemas for API request and response models."""
+
+from .common import (
+    CaptureImage,
+    BorderExtraction,
+    ErrorResponse,
+    PerformanceMetrics,
+    TemplateTestResponse,
+)
+from .system import (
+    DisplayInfo,
+    DisplayListResponse,
+    HealthResponse,
+    VersionResponse,
+)
+from .devices import (
+    Calibration,
+    CalibrationTestModeRequest,
+    CalibrationTestModeResponse,
+    DeviceCreate,
+    DeviceListResponse,
+    DeviceResponse,
+    DeviceStateResponse,
+    DeviceUpdate,
+)
+from .color_strip_sources import (
+    ColorStripSourceCreate,
+    ColorStripSourceListResponse,
+    ColorStripSourceResponse,
+    ColorStripSourceUpdate,
+    CSSCalibrationTestRequest,
+)
+from .output_targets import (
+    OutputTargetCreate,
+    OutputTargetListResponse,
+    OutputTargetResponse,
+    OutputTargetUpdate,
+    TargetMetricsResponse,
+    TargetProcessingState,
+)
+from .templates import (
+    EngineInfo,
+    EngineListResponse,
+    TemplateAssignment,
+    TemplateCreate,
+    TemplateListResponse,
+    TemplateResponse,
+    TemplateTestRequest,
+    TemplateUpdate,
+)
+from .filters import (
+    FilterInstanceSchema,
+    FilterOptionDefSchema,
+    FilterTypeListResponse,
+    FilterTypeResponse,
+)
+from .postprocessing import (
+    PostprocessingTemplateCreate,
+    PostprocessingTemplateListResponse,
+    PostprocessingTemplateResponse,
+    PostprocessingTemplateUpdate,
+    PPTemplateTestRequest,
+)
+from .pattern_templates import (
+    PatternTemplateCreate,
+    PatternTemplateListResponse,
+    PatternTemplateResponse,
+    PatternTemplateUpdate,
+)
+from .picture_sources import (
+    ImageValidateRequest,
+    ImageValidateResponse,
+    PictureSourceCreate,
+    PictureSourceListResponse,
+    PictureSourceResponse,
+    PictureSourceTestRequest,
+    PictureSourceUpdate,
+)
+
+__all__ = [
+    "CaptureImage",
+    "BorderExtraction",
+    "ErrorResponse",
+    "PerformanceMetrics",
+    "TemplateTestResponse",
+    "DisplayInfo",
+    "DisplayListResponse",
+    "HealthResponse",
+    "VersionResponse",
+    "Calibration",
+    "CalibrationTestModeRequest",
+    "CalibrationTestModeResponse",
+    "DeviceCreate",
+    "DeviceListResponse",
+    "DeviceResponse",
+    "DeviceStateResponse",
+    "DeviceUpdate",
+    "ColorStripSourceCreate",
+    "ColorStripSourceListResponse",
+    "ColorStripSourceResponse",
+    "ColorStripSourceUpdate",
+    "CSSCalibrationTestRequest",
+    "OutputTargetCreate",
+    "OutputTargetListResponse",
+    "OutputTargetResponse",
+    "OutputTargetUpdate",
+    "TargetMetricsResponse",
+    "TargetProcessingState",
+    "EngineInfo",
+    "EngineListResponse",
+    "TemplateAssignment",
+    "TemplateCreate",
+    "TemplateListResponse",
+    "TemplateResponse",
+    "TemplateTestRequest",
+    "TemplateUpdate",
+    "FilterInstanceSchema",
+    "FilterOptionDefSchema",
+    "FilterTypeListResponse",
+    "FilterTypeResponse",
+    "PostprocessingTemplateCreate",
+    "PostprocessingTemplateListResponse",
+    "PostprocessingTemplateResponse",
+    "PostprocessingTemplateUpdate",
+    "PPTemplateTestRequest",
+    "PatternTemplateCreate",
+    "PatternTemplateListResponse",
+    "PatternTemplateResponse",
+    "PatternTemplateUpdate",
+    "ImageValidateRequest",
+    "ImageValidateResponse",
+    "PictureSourceCreate",
+    "PictureSourceListResponse",
+    "PictureSourceResponse",
+    "PictureSourceTestRequest",
+    "PictureSourceUpdate",
+]

server/src/wled_controller/api/schemas/audio_sources.py

@@ -0,0 +1,59 @@
+"""Audio source schemas (CRUD)."""
+
+from datetime import datetime
+from typing import List, Literal, Optional
+
+from pydantic import BaseModel, Field
+
+
+class AudioSourceCreate(BaseModel):
+    """Request to create an audio source."""
+
+    name: str = Field(description="Source name", min_length=1, max_length=100)
+    source_type: Literal["multichannel", "mono"] = Field(description="Source type")
+    # multichannel fields
+    device_index: Optional[int] = Field(None, description="Audio device index (-1 = default)")
+    is_loopback: Optional[bool] = Field(None, description="True for system audio (WASAPI loopback)")
+    audio_template_id: Optional[str] = Field(None, description="Audio capture template ID")
+    # mono fields
+    audio_source_id: Optional[str] = Field(None, description="Parent multichannel audio source ID")
+    channel: Optional[str] = Field(None, description="Channel: mono|left|right")
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class AudioSourceUpdate(BaseModel):
+    """Request to update an audio source."""
+
+    name: Optional[str] = Field(None, description="Source name", min_length=1, max_length=100)
+    device_index: Optional[int] = Field(None, description="Audio device index (-1 = default)")
+    is_loopback: Optional[bool] = Field(None, description="True for system audio (WASAPI loopback)")
+    audio_template_id: Optional[str] = Field(None, description="Audio capture template ID")
+    audio_source_id: Optional[str] = Field(None, description="Parent multichannel audio source ID")
+    channel: Optional[str] = Field(None, description="Channel: mono|left|right")
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class AudioSourceResponse(BaseModel):
+    """Audio source response."""
+
+    id: str = Field(description="Source ID")
+    name: str = Field(description="Source name")
+    source_type: str = Field(description="Source type: multichannel or mono")
+    device_index: Optional[int] = Field(None, description="Audio device index")
+    is_loopback: Optional[bool] = Field(None, description="WASAPI loopback mode")
+    audio_template_id: Optional[str] = Field(None, description="Audio capture template ID")
+    audio_source_id: Optional[str] = Field(None, description="Parent multichannel source ID")
+    channel: Optional[str] = Field(None, description="Channel: mono|left|right")
+    description: Optional[str] = Field(None, description="Description")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class AudioSourceListResponse(BaseModel):
+    """List of audio sources."""
+
+    sources: List[AudioSourceResponse] = Field(description="List of audio sources")
+    count: int = Field(description="Number of sources")

server/src/wled_controller/api/schemas/audio_templates.py

@@ -0,0 +1,62 @@
+"""Audio capture template and engine schemas."""
+
+from datetime import datetime
+from typing import Dict, List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class AudioTemplateCreate(BaseModel):
+    """Request to create an audio capture template."""
+
+    name: str = Field(description="Template name", min_length=1, max_length=100)
+    engine_type: str = Field(description="Audio engine type (e.g., 'wasapi', 'sounddevice')", min_length=1)
+    engine_config: Dict = Field(default_factory=dict, description="Engine-specific configuration")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class AudioTemplateUpdate(BaseModel):
+    """Request to update an audio template."""
+
+    name: Optional[str] = Field(None, description="Template name", min_length=1, max_length=100)
+    engine_type: Optional[str] = Field(None, description="Audio engine type")
+    engine_config: Optional[Dict] = Field(None, description="Engine-specific configuration")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class AudioTemplateResponse(BaseModel):
+    """Audio template information response."""
+
+    id: str = Field(description="Template ID")
+    name: str = Field(description="Template name")
+    engine_type: str = Field(description="Engine type identifier")
+    engine_config: Dict = Field(description="Engine-specific configuration")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+    description: Optional[str] = Field(None, description="Template description")
+
+
+class AudioTemplateListResponse(BaseModel):
+    """List of audio templates response."""
+
+    templates: List[AudioTemplateResponse] = Field(description="List of audio templates")
+    count: int = Field(description="Number of templates")
+
+
+class AudioEngineInfo(BaseModel):
+    """Audio capture engine information."""
+
+    type: str = Field(description="Engine type identifier (e.g., 'wasapi', 'sounddevice')")
+    name: str = Field(description="Human-readable engine name")
+    default_config: Dict = Field(description="Default configuration for this engine")
+    available: bool = Field(description="Whether engine is available on this system")
+
+
+class AudioEngineListResponse(BaseModel):
+    """List of audio engines response."""
+
+    engines: List[AudioEngineInfo] = Field(description="Available audio engines")
+    count: int = Field(description="Number of engines")

server/src/wled_controller/api/schemas/automations.py

@@ -0,0 +1,82 @@
+"""Automation-related schemas."""
+
+from datetime import datetime
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class ConditionSchema(BaseModel):
+    """A single condition within an automation."""
+
+    condition_type: str = Field(description="Condition type discriminator (e.g. 'application')")
+    # Application condition fields
+    apps: Optional[List[str]] = Field(None, description="Process names (for application condition)")
+    match_type: Optional[str] = Field(None, description="'running' or 'topmost' (for application condition)")
+    # Time-of-day condition fields
+    start_time: Optional[str] = Field(None, description="Start time HH:MM (for time_of_day condition)")
+    end_time: Optional[str] = Field(None, description="End time HH:MM (for time_of_day condition)")
+    # System idle condition fields
+    idle_minutes: Optional[int] = Field(None, description="Idle timeout in minutes (for system_idle condition)")
+    when_idle: Optional[bool] = Field(None, description="True=active when idle (for system_idle condition)")
+    # Display state condition fields
+    state: Optional[str] = Field(None, description="'on' or 'off' (for display_state condition)")
+    # MQTT condition fields
+    topic: Optional[str] = Field(None, description="MQTT topic to watch (for mqtt condition)")
+    payload: Optional[str] = Field(None, description="Expected payload value (for mqtt condition)")
+    match_mode: Optional[str] = Field(None, description="'exact', 'contains', or 'regex' (for mqtt condition)")
+    # Webhook condition fields
+    token: Optional[str] = Field(None, description="Secret token for webhook URL (for webhook condition)")
+
+
+class AutomationCreate(BaseModel):
+    """Request to create an automation."""
+
+    name: str = Field(description="Automation name", min_length=1, max_length=100)
+    enabled: bool = Field(default=True, description="Whether the automation is enabled")
+    condition_logic: str = Field(default="or", description="How conditions combine: 'or' or 'and'")
+    conditions: List[ConditionSchema] = Field(default_factory=list, description="List of conditions")
+    scene_preset_id: Optional[str] = Field(None, description="Scene preset to activate")
+    deactivation_mode: str = Field(default="none", description="'none', 'revert', or 'fallback_scene'")
+    deactivation_scene_preset_id: Optional[str] = Field(None, description="Scene preset for fallback deactivation")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class AutomationUpdate(BaseModel):
+    """Request to update an automation."""
+
+    name: Optional[str] = Field(None, description="Automation name", min_length=1, max_length=100)
+    enabled: Optional[bool] = Field(None, description="Whether the automation is enabled")
+    condition_logic: Optional[str] = Field(None, description="How conditions combine: 'or' or 'and'")
+    conditions: Optional[List[ConditionSchema]] = Field(None, description="List of conditions")
+    scene_preset_id: Optional[str] = Field(None, description="Scene preset to activate")
+    deactivation_mode: Optional[str] = Field(None, description="'none', 'revert', or 'fallback_scene'")
+    deactivation_scene_preset_id: Optional[str] = Field(None, description="Scene preset for fallback deactivation")
+    tags: Optional[List[str]] = None
+
+
+class AutomationResponse(BaseModel):
+    """Automation information response."""
+
+    id: str = Field(description="Automation ID")
+    name: str = Field(description="Automation name")
+    enabled: bool = Field(description="Whether the automation is enabled")
+    condition_logic: str = Field(description="Condition combination logic")
+    conditions: List[ConditionSchema] = Field(description="List of conditions")
+    scene_preset_id: Optional[str] = Field(None, description="Scene preset to activate")
+    deactivation_mode: str = Field(default="none", description="Deactivation behavior")
+    deactivation_scene_preset_id: Optional[str] = Field(None, description="Fallback scene preset")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    webhook_url: Optional[str] = Field(None, description="Webhook URL for the first webhook condition (if any)")
+    is_active: bool = Field(default=False, description="Whether the automation is currently active")
+    last_activated_at: Optional[datetime] = Field(None, description="Last time this automation was activated")
+    last_deactivated_at: Optional[datetime] = Field(None, description="Last time this automation was deactivated")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class AutomationListResponse(BaseModel):
+    """List of automations response."""
+
+    automations: List[AutomationResponse] = Field(description="List of automations")
+    count: int = Field(description="Number of automations")

server/src/wled_controller/api/schemas/color_strip_processing.py

@@ -0,0 +1,45 @@
+"""Color strip processing template schemas."""
+
+from datetime import datetime
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+from .filters import FilterInstanceSchema
+
+
+class ColorStripProcessingTemplateCreate(BaseModel):
+    """Request to create a color strip processing template."""
+
+    name: str = Field(description="Template name", min_length=1, max_length=100)
+    filters: List[FilterInstanceSchema] = Field(default_factory=list, description="Ordered list of filter instances")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class ColorStripProcessingTemplateUpdate(BaseModel):
+    """Request to update a color strip processing template."""
+
+    name: Optional[str] = Field(None, description="Template name", min_length=1, max_length=100)
+    filters: Optional[List[FilterInstanceSchema]] = Field(None, description="Ordered list of filter instances")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class ColorStripProcessingTemplateResponse(BaseModel):
+    """Color strip processing template information response."""
+
+    id: str = Field(description="Template ID")
+    name: str = Field(description="Template name")
+    filters: List[FilterInstanceSchema] = Field(description="Ordered list of filter instances")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+    description: Optional[str] = Field(None, description="Template description")
+
+
+class ColorStripProcessingTemplateListResponse(BaseModel):
+    """List of color strip processing templates response."""
+
+    templates: List[ColorStripProcessingTemplateResponse] = Field(description="List of templates")
+    count: int = Field(description="Number of templates")

server/src/wled_controller/api/schemas/color_strip_sources.py

@@ -0,0 +1,307 @@
+"""Color strip source schemas (CRUD)."""
+
+from datetime import datetime
+from typing import Dict, List, Literal, Optional
+
+from pydantic import BaseModel, Field, model_validator
+
+from wled_controller.api.schemas.devices import Calibration
+
+
+class AnimationConfig(BaseModel):
+    """Procedural animation configuration for static/gradient color strip sources."""
+
+    enabled: bool = True
+    type: str = "breathing"  # breathing | color_cycle | gradient_shift | wave
+    speed: float = Field(1.0, ge=0.1, le=10.0, description="Speed multiplier (0.1–10.0)")
+
+
+class ColorStop(BaseModel):
+    """A single color stop in a gradient."""
+
+    position: float = Field(description="Relative position along the strip (0.0–1.0)", ge=0.0, le=1.0)
+    color: List[int] = Field(description="Primary RGB color [R, G, B] (0–255 each)")
+    color_right: Optional[List[int]] = Field(
+        None,
+        description="Optional right-side RGB color for a hard edge (bidirectional stop)",
+    )
+
+
+class CompositeLayer(BaseModel):
+    """A single layer in a composite color strip source."""
+
+    source_id: str = Field(description="ID of the layer's color strip source")
+    blend_mode: str = Field(default="normal", description="Blend mode: normal|add|multiply|screen|override")
+    opacity: float = Field(default=1.0, ge=0.0, le=1.0, description="Layer opacity 0.0-1.0")
+    enabled: bool = Field(default=True, description="Whether this layer is active")
+    brightness_source_id: Optional[str] = Field(None, description="Optional value source ID for dynamic brightness")
+    processing_template_id: Optional[str] = Field(None, description="Optional color strip processing template ID")
+
+
+class MappedZone(BaseModel):
+    """A single zone in a mapped color strip source."""
+
+    source_id: str = Field(description="ID of the zone's color strip source")
+    start: int = Field(default=0, ge=0, description="First LED index (0-based)")
+    end: int = Field(default=0, ge=0, description="Last LED index (exclusive); 0 = auto-fill")
+    reverse: bool = Field(default=False, description="Reverse zone output")
+
+
+class ColorStripSourceCreate(BaseModel):
+    """Request to create a color strip source."""
+
+    name: str = Field(description="Source name", min_length=1, max_length=100)
+    source_type: Literal["picture", "picture_advanced", "static", "gradient", "color_cycle", "effect", "composite", "mapped", "audio", "api_input", "notification", "daylight", "candlelight", "processed"] = Field(default="picture", description="Source type")
+    # picture-type fields
+    picture_source_id: str = Field(default="", description="Picture source ID (for picture type)")
+    smoothing: float = Field(default=0.3, description="Temporal smoothing (0.0=none, 1.0=full)", ge=0.0, le=1.0)
+    interpolation_mode: str = Field(default="average", description="LED color interpolation mode (average, median, dominant)")
+    calibration: Optional[Calibration] = Field(None, description="LED calibration (position and count per edge)")
+    # static-type fields
+    color: Optional[List[int]] = Field(None, description="Static RGB color [R, G, B] (0-255 each, for static type)")
+    # gradient-type fields
+    stops: Optional[List[ColorStop]] = Field(None, description="Color stops for gradient type")
+    # color_cycle-type fields
+    colors: Optional[List[List[int]]] = Field(None, description="List of [R,G,B] colors to cycle (color_cycle type)")
+    # effect-type fields
+    effect_type: Optional[str] = Field(None, description="Effect algorithm: fire|meteor|plasma|noise|aurora")
+    palette: Optional[str] = Field(None, description="Named palette (fire/ocean/lava/forest/rainbow/aurora/sunset/ice)")
+    intensity: Optional[float] = Field(None, description="Effect intensity 0.1-2.0", ge=0.1, le=2.0)
+    scale: Optional[float] = Field(None, description="Spatial scale 0.5-5.0", ge=0.5, le=5.0)
+    mirror: Optional[bool] = Field(None, description="Mirror/bounce mode (meteor)")
+    # composite-type fields
+    layers: Optional[List[CompositeLayer]] = Field(None, description="Layers for composite type")
+    # mapped-type fields
+    zones: Optional[List[MappedZone]] = Field(None, description="Zones for mapped type")
+    # audio-type fields
+    visualization_mode: Optional[str] = Field(None, description="Audio visualization: spectrum|beat_pulse|vu_meter")
+    audio_source_id: Optional[str] = Field(None, description="Mono audio source ID (for audio type)")
+    sensitivity: Optional[float] = Field(None, description="Audio sensitivity/gain 0.1-5.0", ge=0.1, le=5.0)
+    color_peak: Optional[List[int]] = Field(None, description="Peak/high RGB color for VU meter [R,G,B]")
+    # shared
+    led_count: int = Field(default=0, description="Total LED count (0 = auto from calibration / device)", ge=0)
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    animation: Optional[AnimationConfig] = Field(None, description="Procedural animation config (static/gradient only)")
+    # api_input-type fields
+    fallback_color: Optional[List[int]] = Field(None, description="Fallback RGB color [R,G,B] when no data received (api_input type)")
+    timeout: Optional[float] = Field(None, description="Seconds before reverting to fallback (api_input type)", ge=0.0, le=300.0)
+    # notification-type fields
+    notification_effect: Optional[str] = Field(None, description="Notification effect: flash|pulse|sweep")
+    duration_ms: Optional[int] = Field(None, ge=100, le=10000, description="Effect duration in milliseconds")
+    default_color: Optional[str] = Field(None, description="Default hex color (#RRGGBB) for notifications")
+    app_colors: Optional[Dict[str, str]] = Field(None, description="Map of app name to hex color (#RRGGBB)")
+    app_filter_mode: Optional[str] = Field(None, description="App filter mode: off|whitelist|blacklist")
+    app_filter_list: Optional[List[str]] = Field(None, description="App names for filter")
+    os_listener: Optional[bool] = Field(None, description="Whether to listen for OS notifications")
+    # daylight-type fields
+    speed: Optional[float] = Field(None, description="Cycle/flicker speed multiplier", ge=0.1, le=10.0)
+    use_real_time: Optional[bool] = Field(None, description="Use wall-clock time for daylight cycle")
+    latitude: Optional[float] = Field(None, description="Latitude for daylight timing (-90 to 90)", ge=-90.0, le=90.0)
+    # candlelight-type fields
+    num_candles: Optional[int] = Field(None, description="Number of independent candle sources (1-20)", ge=1, le=20)
+    # processed-type fields
+    input_source_id: Optional[str] = Field(None, description="Input color strip source ID (for processed type)")
+    processing_template_id: Optional[str] = Field(None, description="Color strip processing template ID (for processed type)")
+    # sync clock
+    clock_id: Optional[str] = Field(None, description="Optional sync clock ID for synchronized animation")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class ColorStripSourceUpdate(BaseModel):
+    """Request to update a color strip source."""
+
+    name: Optional[str] = Field(None, description="Source name", min_length=1, max_length=100)
+    # picture-type fields
+    picture_source_id: Optional[str] = Field(None, description="Picture source ID")
+    smoothing: Optional[float] = Field(None, description="Temporal smoothing (0.0-1.0)", ge=0.0, le=1.0)
+    interpolation_mode: Optional[str] = Field(None, description="Interpolation mode (average, median, dominant)")
+    calibration: Optional[Calibration] = Field(None, description="LED calibration")
+    # static-type fields
+    color: Optional[List[int]] = Field(None, description="Static RGB color [R, G, B] (0-255 each, for static type)")
+    # gradient-type fields
+    stops: Optional[List[ColorStop]] = Field(None, description="Color stops for gradient type")
+    # color_cycle-type fields
+    colors: Optional[List[List[int]]] = Field(None, description="List of [R,G,B] colors to cycle (color_cycle type)")
+    # effect-type fields
+    effect_type: Optional[str] = Field(None, description="Effect algorithm: fire|meteor|plasma|noise|aurora")
+    palette: Optional[str] = Field(None, description="Named palette")
+    intensity: Optional[float] = Field(None, description="Effect intensity 0.1-2.0", ge=0.1, le=2.0)
+    scale: Optional[float] = Field(None, description="Spatial scale 0.5-5.0", ge=0.5, le=5.0)
+    mirror: Optional[bool] = Field(None, description="Mirror/bounce mode")
+    # composite-type fields
+    layers: Optional[List[CompositeLayer]] = Field(None, description="Layers for composite type")
+    # mapped-type fields
+    zones: Optional[List[MappedZone]] = Field(None, description="Zones for mapped type")
+    # audio-type fields
+    visualization_mode: Optional[str] = Field(None, description="Audio visualization: spectrum|beat_pulse|vu_meter")
+    audio_source_id: Optional[str] = Field(None, description="Mono audio source ID (for audio type)")
+    sensitivity: Optional[float] = Field(None, description="Audio sensitivity/gain 0.1-5.0", ge=0.1, le=5.0)
+    color_peak: Optional[List[int]] = Field(None, description="Peak/high RGB color for VU meter [R,G,B]")
+    # shared
+    led_count: Optional[int] = Field(None, description="Total LED count (0 = auto from calibration / device)", ge=0)
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    animation: Optional[AnimationConfig] = Field(None, description="Procedural animation config (static/gradient only)")
+    # api_input-type fields
+    fallback_color: Optional[List[int]] = Field(None, description="Fallback RGB color [R,G,B] (api_input type)")
+    timeout: Optional[float] = Field(None, description="Timeout before fallback (api_input type)", ge=0.0, le=300.0)
+    # notification-type fields
+    notification_effect: Optional[str] = Field(None, description="Notification effect: flash|pulse|sweep")
+    duration_ms: Optional[int] = Field(None, ge=100, le=10000, description="Effect duration in milliseconds")
+    default_color: Optional[str] = Field(None, description="Default hex color (#RRGGBB)")
+    app_colors: Optional[Dict[str, str]] = Field(None, description="Map of app name to hex color")
+    app_filter_mode: Optional[str] = Field(None, description="App filter mode: off|whitelist|blacklist")
+    app_filter_list: Optional[List[str]] = Field(None, description="App names for filter")
+    os_listener: Optional[bool] = Field(None, description="Whether to listen for OS notifications")
+    # daylight-type fields
+    speed: Optional[float] = Field(None, description="Cycle/flicker speed multiplier", ge=0.1, le=10.0)
+    use_real_time: Optional[bool] = Field(None, description="Use wall-clock time for daylight cycle")
+    latitude: Optional[float] = Field(None, description="Latitude for daylight timing (-90 to 90)", ge=-90.0, le=90.0)
+    # candlelight-type fields
+    num_candles: Optional[int] = Field(None, description="Number of independent candle sources (1-20)", ge=1, le=20)
+    # processed-type fields
+    input_source_id: Optional[str] = Field(None, description="Input color strip source ID (for processed type)")
+    processing_template_id: Optional[str] = Field(None, description="Color strip processing template ID (for processed type)")
+    # sync clock
+    clock_id: Optional[str] = Field(None, description="Optional sync clock ID for synchronized animation")
+    tags: Optional[List[str]] = None
+
+
+class ColorStripSourceResponse(BaseModel):
+    """Color strip source response."""
+
+    id: str = Field(description="Source ID")
+    name: str = Field(description="Source name")
+    source_type: str = Field(description="Source type")
+    # picture-type fields
+    picture_source_id: Optional[str] = Field(None, description="Picture source ID")
+    smoothing: Optional[float] = Field(None, description="Temporal smoothing")
+    interpolation_mode: Optional[str] = Field(None, description="Interpolation mode")
+    calibration: Optional[Calibration] = Field(None, description="LED calibration")
+    # static-type fields
+    color: Optional[List[int]] = Field(None, description="Static RGB color [R, G, B]")
+    # gradient-type fields
+    stops: Optional[List[ColorStop]] = Field(None, description="Color stops for gradient type")
+    # color_cycle-type fields
+    colors: Optional[List[List[int]]] = Field(None, description="List of [R,G,B] colors to cycle (color_cycle type)")
+    # effect-type fields
+    effect_type: Optional[str] = Field(None, description="Effect algorithm")
+    palette: Optional[str] = Field(None, description="Named palette")
+    intensity: Optional[float] = Field(None, description="Effect intensity")
+    scale: Optional[float] = Field(None, description="Spatial scale")
+    mirror: Optional[bool] = Field(None, description="Mirror/bounce mode")
+    # composite-type fields
+    layers: Optional[List[dict]] = Field(None, description="Layers for composite type")
+    # mapped-type fields
+    zones: Optional[List[dict]] = Field(None, description="Zones for mapped type")
+    # audio-type fields
+    visualization_mode: Optional[str] = Field(None, description="Audio visualization mode")
+    audio_source_id: Optional[str] = Field(None, description="Mono audio source ID")
+    sensitivity: Optional[float] = Field(None, description="Audio sensitivity")
+    color_peak: Optional[List[int]] = Field(None, description="Peak color [R,G,B]")
+    # shared
+    led_count: int = Field(0, description="Total LED count (0 = auto from calibration / device)")
+    description: Optional[str] = Field(None, description="Description")
+    animation: Optional[AnimationConfig] = Field(None, description="Procedural animation config (static/gradient only)")
+    # api_input-type fields
+    fallback_color: Optional[List[int]] = Field(None, description="Fallback RGB color [R,G,B] (api_input type)")
+    timeout: Optional[float] = Field(None, description="Timeout before fallback (api_input type)")
+    # notification-type fields
+    notification_effect: Optional[str] = Field(None, description="Notification effect: flash|pulse|sweep")
+    duration_ms: Optional[int] = Field(None, description="Effect duration in milliseconds")
+    default_color: Optional[str] = Field(None, description="Default hex color (#RRGGBB)")
+    app_colors: Optional[Dict[str, str]] = Field(None, description="Map of app name to hex color")
+    app_filter_mode: Optional[str] = Field(None, description="App filter mode: off|whitelist|blacklist")
+    app_filter_list: Optional[List[str]] = Field(None, description="App names for filter")
+    os_listener: Optional[bool] = Field(None, description="Whether to listen for OS notifications")
+    # daylight-type fields
+    speed: Optional[float] = Field(None, description="Cycle/flicker speed multiplier")
+    use_real_time: Optional[bool] = Field(None, description="Use wall-clock time for daylight cycle")
+    latitude: Optional[float] = Field(None, description="Latitude for daylight timing")
+    # candlelight-type fields
+    num_candles: Optional[int] = Field(None, description="Number of independent candle sources")
+    # processed-type fields
+    input_source_id: Optional[str] = Field(None, description="Input color strip source ID")
+    processing_template_id: Optional[str] = Field(None, description="Color strip processing template ID")
+    # sync clock
+    clock_id: Optional[str] = Field(None, description="Optional sync clock ID for synchronized animation")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    overlay_active: bool = Field(False, description="Whether the screen overlay is currently active")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class ColorStripSourceListResponse(BaseModel):
+    """List of color strip sources."""
+
+    sources: List[ColorStripSourceResponse] = Field(description="List of color strip sources")
+    count: int = Field(description="Number of sources")
+
+
+class SegmentPayload(BaseModel):
+    """A single segment for segment-based LED color updates."""
+
+    start: int = Field(ge=0, description="Starting LED index")
+    length: int = Field(ge=1, description="Number of LEDs in segment")
+    mode: Literal["solid", "per_pixel", "gradient"] = Field(description="Fill mode")
+    color: Optional[List[int]] = Field(None, description="RGB for solid mode [R,G,B]")
+    colors: Optional[List[List[int]]] = Field(None, description="Colors for per_pixel/gradient [[R,G,B],...]")
+
+    @model_validator(mode="after")
+    def _validate_mode_fields(self) -> "SegmentPayload":
+        if self.mode == "solid":
+            if self.color is None or len(self.color) != 3:
+                raise ValueError("solid mode requires 'color' as a list of 3 ints [R,G,B]")
+            if not all(0 <= c <= 255 for c in self.color):
+                raise ValueError("solid color values must be 0-255")
+        elif self.mode == "per_pixel":
+            if not self.colors:
+                raise ValueError("per_pixel mode requires non-empty 'colors' list")
+            for c in self.colors:
+                if len(c) != 3:
+                    raise ValueError("each color in per_pixel must be [R,G,B]")
+        elif self.mode == "gradient":
+            if not self.colors or len(self.colors) < 2:
+                raise ValueError("gradient mode requires 'colors' with at least 2 stops")
+            for c in self.colors:
+                if len(c) != 3:
+                    raise ValueError("each color stop in gradient must be [R,G,B]")
+        return self
+
+
+class ColorPushRequest(BaseModel):
+    """Request to push raw LED colors to an api_input source.
+
+    Accepts either 'colors' (legacy flat array) or 'segments' (new segment-based).
+    At least one must be provided.
+    """
+
+    colors: Optional[List[List[int]]] = Field(None, description="LED color array [[R,G,B], ...] (0-255 each)")
+    segments: Optional[List[SegmentPayload]] = Field(None, description="Segment-based color updates")
+
+    @model_validator(mode="after")
+    def _require_colors_or_segments(self) -> "ColorPushRequest":
+        if self.colors is None and self.segments is None:
+            raise ValueError("Either 'colors' or 'segments' must be provided")
+        return self
+
+
+class NotifyRequest(BaseModel):
+    """Request to trigger a notification on a notification color strip source."""
+
+    app: Optional[str] = Field(None, description="App name for color lookup")
+    color: Optional[str] = Field(None, description="Hex color override (#RRGGBB)")
+
+
+class CSSCalibrationTestRequest(BaseModel):
+    """Request to run a calibration test for a color strip source on a specific device."""
+
+    device_id: str = Field(description="Device ID to send test pixels to")
+    edges: dict = Field(
+        default_factory=lambda: {
+            "top": [255, 0, 0],
+            "right": [0, 255, 0],
+            "bottom": [0, 100, 255],
+            "left": [255, 255, 0],
+        },
+        description="Map of edge names to RGB colors. Empty dict = exit test mode.",
+    )

server/src/wled_controller/api/schemas/common.py

@@ -0,0 +1,52 @@
+"""Shared schemas used across multiple route modules."""
+
+from datetime import datetime
+from typing import Dict, List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class ErrorResponse(BaseModel):
+    """Error response."""
+
+    error: str = Field(description="Error type")
+    message: str = Field(description="Error message")
+    detail: Optional[Dict] = Field(None, description="Additional error details")
+    timestamp: datetime = Field(default_factory=datetime.utcnow, description="Error timestamp")
+
+
+class CaptureImage(BaseModel):
+    """Captured image with metadata."""
+
+    image: str = Field(description="Base64-encoded thumbnail image data")
+    full_image: Optional[str] = Field(None, description="Base64-encoded full-resolution image data")
+    width: int = Field(description="Original image width in pixels")
+    height: int = Field(description="Original image height in pixels")
+    thumbnail_width: Optional[int] = Field(None, description="Thumbnail width (if resized)")
+    thumbnail_height: Optional[int] = Field(None, description="Thumbnail height (if resized)")
+
+
+class BorderExtraction(BaseModel):
+    """Extracted border images."""
+
+    top: str = Field(description="Base64-encoded top border image")
+    right: str = Field(description="Base64-encoded right border image")
+    bottom: str = Field(description="Base64-encoded bottom border image")
+    left: str = Field(description="Base64-encoded left border image")
+
+
+class PerformanceMetrics(BaseModel):
+    """Performance metrics for template test."""
+
+    capture_duration_s: float = Field(description="Total capture duration in seconds")
+    frame_count: int = Field(description="Number of frames captured")
+    actual_fps: float = Field(description="Actual FPS (frame_count / duration)")
+    avg_capture_time_ms: float = Field(description="Average time per frame capture in milliseconds")
+
+
+class TemplateTestResponse(BaseModel):
+    """Response from template test."""
+
+    full_capture: CaptureImage = Field(description="Full screen capture with thumbnail")
+    border_extraction: Optional[BorderExtraction] = Field(None, description="Extracted border images (deprecated)")
+    performance: PerformanceMetrics = Field(description="Performance metrics")

server/src/wled_controller/api/schemas/devices.py

@@ -0,0 +1,239 @@
+"""Device-related schemas (CRUD, calibration, device state)."""
+
+from datetime import datetime
+from typing import Dict, List, Literal, Optional
+
+from pydantic import BaseModel, Field
+
+
+class DeviceCreate(BaseModel):
+    """Request to create/attach an LED device."""
+
+    name: str = Field(description="Device name", min_length=1, max_length=100)
+    url: str = Field(description="Device URL (e.g., http://192.168.1.100 or COM3)")
+    device_type: str = Field(default="wled", description="LED device type (e.g., wled, adalight)")
+    led_count: Optional[int] = Field(None, ge=1, le=10000, description="Number of LEDs (required for adalight)")
+    baud_rate: Optional[int] = Field(None, description="Serial baud rate (for adalight devices)")
+    auto_shutdown: Optional[bool] = Field(default=None, description="Turn off device when server stops (defaults to true for adalight)")
+    send_latency_ms: Optional[int] = Field(None, ge=0, le=5000, description="Simulated send latency in ms (mock devices)")
+    rgbw: Optional[bool] = Field(None, description="RGBW mode (mock devices)")
+    zone_mode: Optional[str] = Field(None, description="OpenRGB zone mode: combined or separate")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    # DMX (Art-Net / sACN) fields
+    dmx_protocol: Optional[str] = Field(None, description="DMX protocol: artnet or sacn")
+    dmx_start_universe: Optional[int] = Field(None, ge=0, le=32767, description="DMX start universe")
+    dmx_start_channel: Optional[int] = Field(None, ge=1, le=512, description="DMX start channel (1-512)")
+    # ESP-NOW fields
+    espnow_peer_mac: Optional[str] = Field(None, description="ESP-NOW peer MAC address (e.g. AA:BB:CC:DD:EE:FF)")
+    espnow_channel: Optional[int] = Field(None, ge=1, le=14, description="ESP-NOW WiFi channel (1-14)")
+    # Philips Hue fields
+    hue_username: Optional[str] = Field(None, description="Hue bridge username (from pairing)")
+    hue_client_key: Optional[str] = Field(None, description="Hue entertainment client key (hex)")
+    hue_entertainment_group_id: Optional[str] = Field(None, description="Hue entertainment group/zone ID")
+    # SPI Direct fields
+    spi_speed_hz: Optional[int] = Field(None, ge=100000, le=4000000, description="SPI clock speed in Hz")
+    spi_led_type: Optional[str] = Field(None, description="LED chipset: WS2812, WS2812B, WS2811, SK6812, SK6812_RGBW")
+    # Razer Chroma fields
+    chroma_device_type: Optional[str] = Field(None, description="Chroma peripheral type: keyboard, mouse, mousepad, headset, chromalink, keypad")
+    # SteelSeries GameSense fields
+    gamesense_device_type: Optional[str] = Field(None, description="GameSense device type: keyboard, mouse, headset, mousepad, indicator")
+    default_css_processing_template_id: Optional[str] = Field(None, description="Default color strip processing template ID")
+
+
+class DeviceUpdate(BaseModel):
+    """Request to update device information."""
+
+    name: Optional[str] = Field(None, description="Device name", min_length=1, max_length=100)
+    url: Optional[str] = Field(None, description="Device URL or serial port")
+    enabled: Optional[bool] = Field(None, description="Whether device is enabled")
+    led_count: Optional[int] = Field(None, ge=1, le=10000, description="Number of LEDs (for devices with manual_led_count capability)")
+    baud_rate: Optional[int] = Field(None, description="Serial baud rate (for adalight devices)")
+    auto_shutdown: Optional[bool] = Field(None, description="Turn off device when server stops")
+    send_latency_ms: Optional[int] = Field(None, ge=0, le=5000, description="Simulated send latency in ms (mock devices)")
+    rgbw: Optional[bool] = Field(None, description="RGBW mode (mock devices)")
+    zone_mode: Optional[str] = Field(None, description="OpenRGB zone mode: combined or separate")
+    tags: Optional[List[str]] = None
+    dmx_protocol: Optional[str] = Field(None, description="DMX protocol: artnet or sacn")
+    dmx_start_universe: Optional[int] = Field(None, ge=0, le=32767, description="DMX start universe")
+    dmx_start_channel: Optional[int] = Field(None, ge=1, le=512, description="DMX start channel (1-512)")
+    espnow_peer_mac: Optional[str] = Field(None, description="ESP-NOW peer MAC address")
+    espnow_channel: Optional[int] = Field(None, ge=1, le=14, description="ESP-NOW WiFi channel")
+    hue_username: Optional[str] = Field(None, description="Hue bridge username")
+    hue_client_key: Optional[str] = Field(None, description="Hue entertainment client key")
+    hue_entertainment_group_id: Optional[str] = Field(None, description="Hue entertainment group ID")
+    spi_speed_hz: Optional[int] = Field(None, ge=100000, le=4000000, description="SPI clock speed")
+    spi_led_type: Optional[str] = Field(None, description="LED chipset type")
+    chroma_device_type: Optional[str] = Field(None, description="Chroma peripheral type")
+    gamesense_device_type: Optional[str] = Field(None, description="GameSense device type")
+    default_css_processing_template_id: Optional[str] = Field(None, description="Default color strip processing template ID")
+
+
+class CalibrationLineSchema(BaseModel):
+    """One LED line in advanced calibration."""
+
+    picture_source_id: str = Field(description="Picture source (monitor) to sample from")
+    edge: Literal["top", "right", "bottom", "left"] = Field(description="Screen edge to sample")
+    led_count: int = Field(ge=1, description="Number of LEDs in this line")
+    span_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start fraction along edge")
+    span_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End fraction along edge")
+    reverse: bool = Field(default=False, description="Reverse LED direction")
+    border_width: int = Field(default=10, ge=1, le=100, description="Sampling depth in pixels")
+
+
+class Calibration(BaseModel):
+    """Calibration configuration for pixel-to-LED mapping."""
+
+    mode: Literal["simple", "advanced"] = Field(
+        default="simple",
+        description="Calibration mode: simple (4-edge) or advanced (multi-source lines)"
+    )
+    # Advanced mode: ordered list of lines
+    lines: Optional[List[CalibrationLineSchema]] = Field(
+        default=None,
+        description="Line list for advanced mode (ignored in simple mode)"
+    )
+    # Simple mode fields
+    layout: Literal["clockwise", "counterclockwise"] = Field(
+        default="clockwise",
+        description="LED strip layout direction"
+    )
+    start_position: Literal["top_left", "top_right", "bottom_left", "bottom_right"] = Field(
+        default="bottom_left",
+        description="Starting corner of the LED strip"
+    )
+    offset: int = Field(
+        default=0,
+        ge=0,
+        description="Number of LEDs from physical LED 0 to start corner (along strip direction)"
+    )
+    leds_top: int = Field(default=0, ge=0, description="Number of LEDs on the top edge")
+    leds_right: int = Field(default=0, ge=0, description="Number of LEDs on the right edge")
+    leds_bottom: int = Field(default=0, ge=0, description="Number of LEDs on the bottom edge")
+    leds_left: int = Field(default=0, ge=0, description="Number of LEDs on the left edge")
+    # Per-edge span: fraction of screen side covered by LEDs (0.0-1.0)
+    span_top_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of top edge coverage")
+    span_top_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of top edge coverage")
+    span_right_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of right edge coverage")
+    span_right_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of right edge coverage")
+    span_bottom_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of bottom edge coverage")
+    span_bottom_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of bottom edge coverage")
+    span_left_start: float = Field(default=0.0, ge=0.0, le=1.0, description="Start of left edge coverage")
+    span_left_end: float = Field(default=1.0, ge=0.0, le=1.0, description="End of left edge coverage")
+    # Skip LEDs at start/end of strip
+    skip_leds_start: int = Field(default=0, ge=0, description="LEDs to skip (black out) at the start of the strip")
+    skip_leds_end: int = Field(default=0, ge=0, description="LEDs to skip (black out) at the end of the strip")
+    border_width: int = Field(default=10, ge=1, le=100, description="Border width in pixels for edge sampling")
+
+
+class CalibrationTestModeRequest(BaseModel):
+    """Request to set calibration test mode with multiple edges."""
+
+    edges: Dict[str, List[int]] = Field(
+        default_factory=dict,
+        description="Map of active edge names to RGB colors. "
+                    "E.g. {'top': [255, 0, 0], 'left': [255, 255, 0]}. "
+                    "Empty dict = exit test mode."
+    )
+
+
+class CalibrationTestModeResponse(BaseModel):
+    """Response for calibration test mode."""
+
+    test_mode: bool = Field(description="Whether test mode is active")
+    active_edges: List[str] = Field(default_factory=list, description="Currently lit edges")
+    device_id: str = Field(description="Device ID")
+
+
+class DeviceResponse(BaseModel):
+    """Device information response."""
+
+    id: str = Field(description="Device ID")
+    name: str = Field(description="Device name")
+    url: str = Field(description="Device URL")
+    device_type: str = Field(default="wled", description="LED device type")
+    led_count: int = Field(description="Total number of LEDs")
+    enabled: bool = Field(description="Whether device is enabled")
+    baud_rate: Optional[int] = Field(None, description="Serial baud rate")
+    auto_shutdown: bool = Field(default=False, description="Restore device to idle state when targets stop")
+    send_latency_ms: int = Field(default=0, description="Simulated send latency in ms (mock devices)")
+    rgbw: bool = Field(default=False, description="RGBW mode (mock devices)")
+    zone_mode: str = Field(default="combined", description="OpenRGB zone mode: combined or separate")
+    capabilities: List[str] = Field(default_factory=list, description="Device type capabilities")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    dmx_protocol: str = Field(default="artnet", description="DMX protocol: artnet or sacn")
+    dmx_start_universe: int = Field(default=0, description="DMX start universe")
+    dmx_start_channel: int = Field(default=1, description="DMX start channel (1-512)")
+    espnow_peer_mac: str = Field(default="", description="ESP-NOW peer MAC address")
+    espnow_channel: int = Field(default=1, description="ESP-NOW WiFi channel")
+    hue_username: str = Field(default="", description="Hue bridge username")
+    hue_client_key: str = Field(default="", description="Hue entertainment client key")
+    hue_entertainment_group_id: str = Field(default="", description="Hue entertainment group ID")
+    spi_speed_hz: int = Field(default=800000, description="SPI clock speed in Hz")
+    spi_led_type: str = Field(default="WS2812B", description="LED chipset type")
+    chroma_device_type: str = Field(default="chromalink", description="Chroma peripheral type")
+    gamesense_device_type: str = Field(default="keyboard", description="GameSense device type")
+    default_css_processing_template_id: str = Field(default="", description="Default color strip processing template ID")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class DeviceListResponse(BaseModel):
+    """List of devices response."""
+
+    devices: List[DeviceResponse] = Field(description="List of devices")
+    count: int = Field(description="Number of devices")
+
+
+class DeviceStateResponse(BaseModel):
+    """Device health/connection state response."""
+
+    device_id: str = Field(description="Device ID")
+    device_type: str = Field(default="wled", description="LED device type")
+    device_online: bool = Field(default=False, description="Whether device is reachable")
+    device_latency_ms: Optional[float] = Field(None, description="Health check latency in ms")
+    device_name: Optional[str] = Field(None, description="Device name reported by firmware")
+    device_version: Optional[str] = Field(None, description="Firmware version")
+    device_led_count: Optional[int] = Field(None, description="LED count reported by device")
+    device_rgbw: Optional[bool] = Field(None, description="Whether device uses RGBW LEDs")
+    device_led_type: Optional[str] = Field(None, description="LED chip type (e.g. WS2812B, SK6812 RGBW)")
+    device_fps: Optional[int] = Field(None, description="Device-reported FPS (WLED internal refresh rate)")
+    device_last_checked: Optional[datetime] = Field(None, description="Last health check time")
+    device_error: Optional[str] = Field(None, description="Last health check error")
+    test_mode: bool = Field(default=False, description="Whether calibration test mode is active")
+    test_mode_edges: List[str] = Field(default_factory=list, description="Currently lit edges in test mode")
+
+
+class DiscoveredDeviceResponse(BaseModel):
+    """A single device found via network discovery."""
+
+    name: str = Field(description="Device name (from mDNS or firmware)")
+    url: str = Field(description="Device URL")
+    device_type: str = Field(default="wled", description="Device type")
+    ip: str = Field(description="IP address")
+    mac: str = Field(default="", description="MAC address")
+    led_count: Optional[int] = Field(None, description="LED count (if reachable)")
+    version: Optional[str] = Field(None, description="Firmware version")
+    already_added: bool = Field(default=False, description="Whether this device is already in the system")
+
+
+class DiscoverDevicesResponse(BaseModel):
+    """Response from device discovery scan."""
+
+    devices: List[DiscoveredDeviceResponse] = Field(description="Discovered devices")
+    count: int = Field(description="Total devices found")
+    scan_duration_ms: float = Field(description="How long the scan took in milliseconds")
+
+
+class OpenRGBZoneResponse(BaseModel):
+    """A single zone on an OpenRGB device."""
+
+    name: str = Field(description="Zone name (e.g. JRAINBOW2)")
+    led_count: int = Field(description="Number of LEDs in this zone")
+    zone_type: str = Field(description="Zone type (linear, single, matrix)")
+
+
+class OpenRGBZonesResponse(BaseModel):
+    """Response from OpenRGB zone listing."""
+
+    device_name: str = Field(description="OpenRGB device name")
+    zones: List[OpenRGBZoneResponse] = Field(description="Available zones")

server/src/wled_controller/api/schemas/filters.py

@@ -0,0 +1,41 @@
+"""Filter-related schemas."""
+
+from typing import Any, Dict, List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class FilterInstanceSchema(BaseModel):
+    """A single filter instance with its configuration."""
+
+    filter_id: str = Field(description="Filter type identifier")
+    options: Dict[str, Any] = Field(default_factory=dict, description="Filter-specific options")
+
+
+class FilterOptionDefSchema(BaseModel):
+    """Describes a configurable option for a filter type."""
+
+    key: str = Field(description="Option key")
+    label: str = Field(description="Display label")
+    type: str = Field(description="Option type (float, int, bool, select, or string)")
+    default: Any = Field(description="Default value")
+    min_value: Any = Field(description="Minimum value")
+    max_value: Any = Field(description="Maximum value")
+    step: Any = Field(description="Step increment")
+    choices: Optional[List[Dict[str, str]]] = Field(default=None, description="Available choices for select type")
+    max_length: Optional[int] = Field(default=None, description="Maximum string length for string type")
+
+
+class FilterTypeResponse(BaseModel):
+    """Available filter type with its options schema."""
+
+    filter_id: str = Field(description="Filter type identifier")
+    filter_name: str = Field(description="Display name")
+    options_schema: List[FilterOptionDefSchema] = Field(description="Configurable options")
+
+
+class FilterTypeListResponse(BaseModel):
+    """List of available filter types."""
+
+    filters: List[FilterTypeResponse] = Field(description="Available filter types")
+    count: int = Field(description="Number of filter types")

server/src/wled_controller/api/schemas/output_targets.py

@@ -0,0 +1,211 @@
+"""Output target schemas (CRUD, processing state, metrics)."""
+
+from datetime import datetime
+from typing import Dict, Optional, List
+
+from pydantic import BaseModel, Field
+
+DEFAULT_STATE_CHECK_INTERVAL = 30  # seconds between health checks
+
+
+class KeyColorRectangleSchema(BaseModel):
+    """A named rectangle for key color extraction (relative coords 0.0-1.0)."""
+
+    name: str = Field(description="Rectangle name", min_length=1, max_length=50)
+    x: float = Field(default=0.0, description="Left edge (0.0-1.0)", ge=0.0, le=1.0)
+    y: float = Field(default=0.0, description="Top edge (0.0-1.0)", ge=0.0, le=1.0)
+    width: float = Field(default=1.0, description="Width (0.0-1.0)", gt=0.0, le=1.0)
+    height: float = Field(default=1.0, description="Height (0.0-1.0)", gt=0.0, le=1.0)
+
+
+class KeyColorsSettingsSchema(BaseModel):
+    """Settings for key colors extraction."""
+
+    fps: int = Field(default=10, description="Extraction rate (1-60)", ge=1, le=60)
+    interpolation_mode: str = Field(default="average", description="Color mode (average, median, dominant)")
+    smoothing: float = Field(default=0.3, description="Temporal smoothing (0.0-1.0)", ge=0.0, le=1.0)
+    pattern_template_id: str = Field(default="", description="Pattern template ID for rectangle layout")
+    brightness: float = Field(default=1.0, description="Output brightness (0.0-1.0)", ge=0.0, le=1.0)
+    brightness_value_source_id: str = Field(default="", description="Brightness value source ID")
+
+
+class ExtractedColorResponse(BaseModel):
+    """A single extracted color."""
+
+    r: int = Field(description="Red (0-255)")
+    g: int = Field(description="Green (0-255)")
+    b: int = Field(description="Blue (0-255)")
+    hex: str = Field(description="Hex color (#rrggbb)")
+
+
+class KeyColorsResponse(BaseModel):
+    """Extracted key colors for a target."""
+
+    target_id: str = Field(description="Target ID")
+    colors: Dict[str, ExtractedColorResponse] = Field(description="Rectangle name -> color")
+    timestamp: Optional[datetime] = Field(None, description="Extraction timestamp")
+
+
+class OutputTargetCreate(BaseModel):
+    """Request to create an output target."""
+
+    name: str = Field(description="Target name", min_length=1, max_length=100)
+    target_type: str = Field(default="led", description="Target type (led, key_colors)")
+    # LED target fields
+    device_id: str = Field(default="", description="LED device ID")
+    color_strip_source_id: str = Field(default="", description="Color strip source ID")
+    brightness_value_source_id: str = Field(default="", description="Brightness value source ID")
+    fps: int = Field(default=30, ge=1, le=90, description="Target send FPS (1-90)")
+    keepalive_interval: float = Field(default=1.0, description="Keepalive send interval when screen is static (0.5-5.0s)", ge=0.5, le=5.0)
+    state_check_interval: int = Field(default=DEFAULT_STATE_CHECK_INTERVAL, description="Device health check interval (5-600s)", ge=5, le=600)
+    min_brightness_threshold: int = Field(default=0, ge=0, le=254, description="Min brightness threshold (0=disabled); below this → off")
+    adaptive_fps: bool = Field(default=False, description="Auto-reduce FPS when device is unresponsive")
+    protocol: str = Field(default="ddp", pattern="^(ddp|http)$", description="Send protocol: ddp (UDP) or http (JSON API)")
+    # KC target fields
+    picture_source_id: str = Field(default="", description="Picture source ID (for key_colors targets)")
+    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(None, description="Key colors settings (for key_colors targets)")
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class OutputTargetUpdate(BaseModel):
+    """Request to update an output target."""
+
+    name: Optional[str] = Field(None, description="Target name", min_length=1, max_length=100)
+    # LED target fields
+    device_id: Optional[str] = Field(None, description="LED device ID")
+    color_strip_source_id: Optional[str] = Field(None, description="Color strip source ID")
+    brightness_value_source_id: Optional[str] = Field(None, description="Brightness value source ID")
+    fps: Optional[int] = Field(None, ge=1, le=90, description="Target send FPS (1-90)")
+    keepalive_interval: Optional[float] = Field(None, description="Keepalive interval (0.5-5.0s)", ge=0.5, le=5.0)
+    state_check_interval: Optional[int] = Field(None, description="Health check interval (5-600s)", ge=5, le=600)
+    min_brightness_threshold: Optional[int] = Field(None, ge=0, le=254, description="Min brightness threshold (0=disabled); below this → off")
+    adaptive_fps: Optional[bool] = Field(None, description="Auto-reduce FPS when device is unresponsive")
+    protocol: Optional[str] = Field(None, pattern="^(ddp|http)$", description="Send protocol: ddp (UDP) or http (JSON API)")
+    # KC target fields
+    picture_source_id: Optional[str] = Field(None, description="Picture source ID (for key_colors targets)")
+    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(None, description="Key colors settings (for key_colors targets)")
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class OutputTargetResponse(BaseModel):
+    """Output target response."""
+
+    id: str = Field(description="Target ID")
+    name: str = Field(description="Target name")
+    target_type: str = Field(description="Target type")
+    # LED target fields
+    device_id: str = Field(default="", description="LED device ID")
+    color_strip_source_id: str = Field(default="", description="Color strip source ID")
+    brightness_value_source_id: str = Field(default="", description="Brightness value source ID")
+    fps: Optional[int] = Field(None, description="Target send FPS")
+    keepalive_interval: float = Field(default=1.0, description="Keepalive interval (s)")
+    state_check_interval: int = Field(default=DEFAULT_STATE_CHECK_INTERVAL, description="Health check interval (s)")
+    min_brightness_threshold: int = Field(default=0, description="Min brightness threshold (0=disabled)")
+    adaptive_fps: bool = Field(default=False, description="Auto-reduce FPS when device is unresponsive")
+    protocol: str = Field(default="ddp", description="Send protocol (ddp or http)")
+    # KC target fields
+    picture_source_id: str = Field(default="", description="Picture source ID (key_colors)")
+    key_colors_settings: Optional[KeyColorsSettingsSchema] = Field(None, description="Key colors settings")
+    description: Optional[str] = Field(None, description="Description")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class OutputTargetListResponse(BaseModel):
+    """List of output targets response."""
+
+    targets: List[OutputTargetResponse] = Field(description="List of output targets")
+    count: int = Field(description="Number of targets")
+
+
+class TargetProcessingState(BaseModel):
+    """Processing state for an output target."""
+
+    target_id: str = Field(description="Target ID")
+    device_id: Optional[str] = Field(None, description="Device ID")
+    color_strip_source_id: str = Field(default="", description="Color strip source ID")
+    processing: bool = Field(description="Whether processing is active")
+    fps_actual: Optional[float] = Field(None, description="Actual FPS achieved")
+    fps_potential: Optional[float] = Field(None, description="Potential FPS (processing speed without throttle)")
+    fps_target: Optional[int] = Field(None, description="Target FPS")
+    frames_skipped: Optional[int] = Field(None, description="Frames skipped (no screen change)")
+    frames_keepalive: Optional[int] = Field(None, description="Keepalive frames sent during standby")
+    fps_current: Optional[int] = Field(None, description="Frames sent in the last second")
+    timing_send_ms: Optional[float] = Field(None, description="DDP send time (ms)")
+    timing_extract_ms: Optional[float] = Field(None, description="Border pixel extraction time (ms)")
+    timing_map_leds_ms: Optional[float] = Field(None, description="LED color mapping time (ms)")
+    timing_smooth_ms: Optional[float] = Field(None, description="Temporal smoothing time (ms)")
+    timing_total_ms: Optional[float] = Field(None, description="Total processing time per frame (ms)")
+    timing_audio_read_ms: Optional[float] = Field(None, description="Audio device read time (ms)")
+    timing_audio_fft_ms: Optional[float] = Field(None, description="Audio FFT analysis time (ms)")
+    timing_audio_render_ms: Optional[float] = Field(None, description="Audio visualization render time (ms)")
+    timing_calc_colors_ms: Optional[float] = Field(None, description="Color calculation time (ms, KC targets)")
+    timing_broadcast_ms: Optional[float] = Field(None, description="WebSocket broadcast time (ms, KC targets)")
+    display_index: Optional[int] = Field(None, description="Current display index")
+    overlay_active: bool = Field(default=False, description="Whether visualization overlay is active")
+    last_update: Optional[datetime] = Field(None, description="Last successful update")
+    errors: List[str] = Field(default_factory=list, description="Recent errors")
+    device_online: bool = Field(default=False, description="Whether device is reachable")
+    device_latency_ms: Optional[float] = Field(None, description="Health check latency in ms")
+    device_name: Optional[str] = Field(None, description="Device name reported by firmware")
+    device_version: Optional[str] = Field(None, description="Firmware version")
+    device_led_count: Optional[int] = Field(None, description="LED count reported by device")
+    device_rgbw: Optional[bool] = Field(None, description="Whether device uses RGBW LEDs")
+    device_led_type: Optional[str] = Field(None, description="LED chip type (e.g. WS2812B, SK6812 RGBW)")
+    device_fps: Optional[int] = Field(None, description="Device-reported FPS (WLED internal refresh rate)")
+    device_last_checked: Optional[datetime] = Field(None, description="Last health check time")
+    device_error: Optional[str] = Field(None, description="Last health check error")
+    device_streaming_reachable: Optional[bool] = Field(None, description="Device reachable during streaming (HTTP probe)")
+    fps_effective: Optional[int] = Field(None, description="Effective FPS after adaptive reduction")
+
+
+class TargetMetricsResponse(BaseModel):
+    """Target metrics response."""
+
+    target_id: str = Field(description="Target ID")
+    device_id: Optional[str] = Field(None, description="Device ID")
+    processing: bool = Field(description="Whether processing is active")
+    fps_actual: Optional[float] = Field(None, description="Actual FPS")
+    fps_target: Optional[int] = Field(None, description="Target FPS")
+    uptime_seconds: float = Field(description="Processing uptime in seconds")
+    frames_processed: int = Field(description="Total frames processed")
+    errors_count: int = Field(description="Total error count")
+    last_error: Optional[str] = Field(None, description="Last error message")
+    last_update: Optional[datetime] = Field(None, description="Last update timestamp")
+
+
+class BulkTargetRequest(BaseModel):
+    """Request body for bulk start/stop operations."""
+
+    ids: List[str] = Field(description="List of target IDs to operate on")
+
+
+class BulkTargetResponse(BaseModel):
+    """Response for bulk start/stop operations."""
+
+    started: List[str] = Field(default_factory=list, description="IDs that were successfully started")
+    stopped: List[str] = Field(default_factory=list, description="IDs that were successfully stopped")
+    errors: Dict[str, str] = Field(default_factory=dict, description="Map of target ID to error message for failures")
+
+
+class KCTestRectangleResponse(BaseModel):
+    """A rectangle with its extracted color from a KC test."""
+
+    name: str = Field(description="Rectangle name")
+    x: float = Field(description="Left edge (0.0-1.0)")
+    y: float = Field(description="Top edge (0.0-1.0)")
+    width: float = Field(description="Width (0.0-1.0)")
+    height: float = Field(description="Height (0.0-1.0)")
+    color: ExtractedColorResponse = Field(description="Extracted color for this rectangle")
+
+
+class KCTestResponse(BaseModel):
+    """Response from testing a KC target."""
+
+    image: str = Field(description="Base64 data URI of the captured frame")
+    rectangles: List[KCTestRectangleResponse] = Field(description="Rectangles with extracted colors")
+    interpolation_mode: str = Field(description="Color extraction mode used")
+    pattern_template_name: str = Field(description="Pattern template name")

server/src/wled_controller/api/schemas/pattern_templates.py

@@ -0,0 +1,45 @@
+"""Pydantic schemas for pattern template API."""
+
+from datetime import datetime
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+from .output_targets import KeyColorRectangleSchema
+
+
+class PatternTemplateCreate(BaseModel):
+    """Request to create a pattern template."""
+
+    name: str = Field(description="Template name", min_length=1, max_length=100)
+    rectangles: List[KeyColorRectangleSchema] = Field(default_factory=list, description="List of named rectangles")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class PatternTemplateUpdate(BaseModel):
+    """Request to update a pattern template."""
+
+    name: Optional[str] = Field(None, description="Template name", min_length=1, max_length=100)
+    rectangles: Optional[List[KeyColorRectangleSchema]] = Field(None, description="List of named rectangles")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class PatternTemplateResponse(BaseModel):
+    """Pattern template response."""
+
+    id: str = Field(description="Template ID")
+    name: str = Field(description="Template name")
+    rectangles: List[KeyColorRectangleSchema] = Field(description="List of named rectangles")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+    description: Optional[str] = Field(None, description="Template description")
+
+
+class PatternTemplateListResponse(BaseModel):
+    """List of pattern templates."""
+
+    templates: List[PatternTemplateResponse] = Field(description="List of pattern templates")
+    count: int = Field(description="Number of templates")

server/src/wled_controller/api/schemas/picture_sources.py

@@ -0,0 +1,107 @@
+"""Picture source schemas."""
+
+from datetime import datetime
+from typing import List, Literal, Optional
+
+from pydantic import BaseModel, Field
+
+
+class PictureSourceCreate(BaseModel):
+    """Request to create a picture source."""
+
+    name: str = Field(description="Stream name", min_length=1, max_length=100)
+    stream_type: Literal["raw", "processed", "static_image", "video"] = Field(description="Stream type")
+    display_index: Optional[int] = Field(None, description="Display index (raw streams)", ge=0)
+    capture_template_id: Optional[str] = Field(None, description="Capture template ID (raw streams)")
+    target_fps: Optional[int] = Field(None, description="Target FPS", ge=1, le=90)
+    source_stream_id: Optional[str] = Field(None, description="Source stream ID (processed streams)")
+    postprocessing_template_id: Optional[str] = Field(None, description="Postprocessing template ID (processed streams)")
+    image_source: Optional[str] = Field(None, description="Image URL or file path (static_image streams)")
+    description: Optional[str] = Field(None, description="Stream description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    # Video fields
+    url: Optional[str] = Field(None, description="Video URL, file path, or YouTube URL")
+    loop: bool = Field(True, description="Loop video playback")
+    playback_speed: float = Field(1.0, description="Playback speed multiplier", ge=0.1, le=10.0)
+    start_time: Optional[float] = Field(None, description="Trim start time in seconds", ge=0)
+    end_time: Optional[float] = Field(None, description="Trim end time in seconds", ge=0)
+    resolution_limit: Optional[int] = Field(None, description="Max width in pixels for decode downscale", ge=64, le=7680)
+    clock_id: Optional[str] = Field(None, description="Sync clock ID for frame-accurate timing")
+
+
+class PictureSourceUpdate(BaseModel):
+    """Request to update a picture source."""
+
+    name: Optional[str] = Field(None, description="Stream name", min_length=1, max_length=100)
+    display_index: Optional[int] = Field(None, description="Display index (raw streams)", ge=0)
+    capture_template_id: Optional[str] = Field(None, description="Capture template ID (raw streams)")
+    target_fps: Optional[int] = Field(None, description="Target FPS", ge=1, le=90)
+    source_stream_id: Optional[str] = Field(None, description="Source stream ID (processed streams)")
+    postprocessing_template_id: Optional[str] = Field(None, description="Postprocessing template ID (processed streams)")
+    image_source: Optional[str] = Field(None, description="Image URL or file path (static_image streams)")
+    description: Optional[str] = Field(None, description="Stream description", max_length=500)
+    tags: Optional[List[str]] = None
+    # Video fields
+    url: Optional[str] = Field(None, description="Video URL, file path, or YouTube URL")
+    loop: Optional[bool] = Field(None, description="Loop video playback")
+    playback_speed: Optional[float] = Field(None, description="Playback speed multiplier", ge=0.1, le=10.0)
+    start_time: Optional[float] = Field(None, description="Trim start time in seconds", ge=0)
+    end_time: Optional[float] = Field(None, description="Trim end time in seconds", ge=0)
+    resolution_limit: Optional[int] = Field(None, description="Max width in pixels for decode downscale", ge=64, le=7680)
+    clock_id: Optional[str] = Field(None, description="Sync clock ID for frame-accurate timing")
+
+
+class PictureSourceResponse(BaseModel):
+    """Picture source information response."""
+
+    id: str = Field(description="Stream ID")
+    name: str = Field(description="Stream name")
+    stream_type: str = Field(description="Stream type (raw, processed, static_image, or video)")
+    display_index: Optional[int] = Field(None, description="Display index")
+    capture_template_id: Optional[str] = Field(None, description="Capture template ID")
+    target_fps: Optional[int] = Field(None, description="Target FPS")
+    source_stream_id: Optional[str] = Field(None, description="Source stream ID")
+    postprocessing_template_id: Optional[str] = Field(None, description="Postprocessing template ID")
+    image_source: Optional[str] = Field(None, description="Image URL or file path")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+    description: Optional[str] = Field(None, description="Stream description")
+    # Video fields
+    url: Optional[str] = Field(None, description="Video URL")
+    loop: Optional[bool] = Field(None, description="Loop video playback")
+    playback_speed: Optional[float] = Field(None, description="Playback speed multiplier")
+    start_time: Optional[float] = Field(None, description="Trim start time in seconds")
+    end_time: Optional[float] = Field(None, description="Trim end time in seconds")
+    resolution_limit: Optional[int] = Field(None, description="Max width for decode")
+    clock_id: Optional[str] = Field(None, description="Sync clock ID")
+
+
+class PictureSourceListResponse(BaseModel):
+    """List of picture sources response."""
+
+    streams: List[PictureSourceResponse] = Field(description="List of picture sources")
+    count: int = Field(description="Number of streams")
+
+
+class PictureSourceTestRequest(BaseModel):
+    """Request to test a picture source."""
+
+    capture_duration: float = Field(default=5.0, ge=0.0, le=30.0, description="Duration to capture in seconds (0 = single frame)")
+    border_width: int = Field(default=10, ge=1, le=100, description="Border width in pixels for preview")
+
+
+class ImageValidateRequest(BaseModel):
+    """Request to validate an image source (URL or file path)."""
+
+    image_source: str = Field(description="Image URL or local file path")
+
+
+class ImageValidateResponse(BaseModel):
+    """Response from image validation."""
+
+    valid: bool = Field(description="Whether the image source is accessible and valid")
+    width: Optional[int] = Field(None, description="Image width in pixels")
+    height: Optional[int] = Field(None, description="Image height in pixels")
+    preview: Optional[str] = Field(None, description="Base64-encoded JPEG thumbnail")
+    error: Optional[str] = Field(None, description="Error message if invalid")

server/src/wled_controller/api/schemas/postprocessing.py

@@ -0,0 +1,52 @@
+"""Postprocessing template schemas."""
+
+from datetime import datetime
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+from .filters import FilterInstanceSchema
+
+
+class PostprocessingTemplateCreate(BaseModel):
+    """Request to create a postprocessing template."""
+
+    name: str = Field(description="Template name", min_length=1, max_length=100)
+    filters: List[FilterInstanceSchema] = Field(default_factory=list, description="Ordered list of filter instances")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class PostprocessingTemplateUpdate(BaseModel):
+    """Request to update a postprocessing template."""
+
+    name: Optional[str] = Field(None, description="Template name", min_length=1, max_length=100)
+    filters: Optional[List[FilterInstanceSchema]] = Field(None, description="Ordered list of filter instances")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class PostprocessingTemplateResponse(BaseModel):
+    """Postprocessing template information response."""
+
+    id: str = Field(description="Template ID")
+    name: str = Field(description="Template name")
+    filters: List[FilterInstanceSchema] = Field(description="Ordered list of filter instances")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+    description: Optional[str] = Field(None, description="Template description")
+
+
+class PostprocessingTemplateListResponse(BaseModel):
+    """List of postprocessing templates response."""
+
+    templates: List[PostprocessingTemplateResponse] = Field(description="List of postprocessing templates")
+    count: int = Field(description="Number of templates")
+
+
+class PPTemplateTestRequest(BaseModel):
+    """Request to test a postprocessing template against a source stream."""
+
+    source_stream_id: str = Field(description="ID of the source picture source to capture from")
+    capture_duration: float = Field(default=5.0, ge=1.0, le=30.0, description="Duration to capture in seconds")

server/src/wled_controller/api/schemas/scene_presets.py

@@ -0,0 +1,56 @@
+"""Scene preset API schemas."""
+
+from datetime import datetime
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class TargetSnapshotSchema(BaseModel):
+    target_id: str
+    running: bool = False
+    color_strip_source_id: str = ""
+    brightness_value_source_id: str = ""
+    fps: int = 30
+
+
+class ScenePresetCreate(BaseModel):
+    """Create a scene preset by capturing current state."""
+
+    name: str = Field(description="Preset name", min_length=1, max_length=100)
+    description: str = Field(default="", max_length=500)
+    target_ids: Optional[List[str]] = Field(None, description="Target IDs to capture (all if omitted)")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class ScenePresetUpdate(BaseModel):
+    """Update scene preset metadata and optionally change which targets are included."""
+
+    name: Optional[str] = Field(None, min_length=1, max_length=100)
+    description: Optional[str] = Field(None, max_length=500)
+    order: Optional[int] = None
+    target_ids: Optional[List[str]] = Field(None, description="Update target list: keep state for existing, capture fresh for new, drop removed")
+    tags: Optional[List[str]] = None
+
+
+class ScenePresetResponse(BaseModel):
+    """Scene preset with full snapshot data."""
+
+    id: str
+    name: str
+    description: str
+    targets: List[TargetSnapshotSchema]
+    order: int
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime
+    updated_at: datetime
+
+
+class ScenePresetListResponse(BaseModel):
+    presets: List[ScenePresetResponse]
+    count: int
+
+
+class ActivateResponse(BaseModel):
+    status: str = Field(description="'activated' or 'partial'")
+    errors: List[str] = Field(default_factory=list)

server/src/wled_controller/api/schemas/sync_clocks.py

@@ -0,0 +1,45 @@
+"""Sync clock schemas (CRUD + control)."""
+
+from datetime import datetime
+from typing import List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class SyncClockCreate(BaseModel):
+    """Request to create a synchronization clock."""
+
+    name: str = Field(description="Clock name", min_length=1, max_length=100)
+    speed: float = Field(default=1.0, description="Speed multiplier (0.1–10.0)", ge=0.1, le=10.0)
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class SyncClockUpdate(BaseModel):
+    """Request to update a synchronization clock."""
+
+    name: Optional[str] = Field(None, description="Clock name", min_length=1, max_length=100)
+    speed: Optional[float] = Field(None, description="Speed multiplier (0.1–10.0)", ge=0.1, le=10.0)
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class SyncClockResponse(BaseModel):
+    """Synchronization clock response."""
+
+    id: str = Field(description="Clock ID")
+    name: str = Field(description="Clock name")
+    speed: float = Field(description="Speed multiplier")
+    description: Optional[str] = Field(None, description="Description")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    is_running: bool = Field(True, description="Whether clock is currently running")
+    elapsed_time: float = Field(0.0, description="Current elapsed time in seconds")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class SyncClockListResponse(BaseModel):
+    """List of synchronization clocks."""
+
+    clocks: List[SyncClockResponse] = Field(description="List of sync clocks")
+    count: int = Field(description="Number of clocks")

server/src/wled_controller/api/schemas/system.py

@@ -0,0 +1,173 @@
+"""System-related schemas (health, version, displays)."""
+
+from datetime import datetime
+from typing import List, Literal
+
+from pydantic import BaseModel, Field
+
+
+class HealthResponse(BaseModel):
+    """Health check response."""
+
+    status: Literal["healthy", "unhealthy"] = Field(description="Service health status")
+    timestamp: datetime = Field(description="Current server time")
+    version: str = Field(description="Application version")
+    demo_mode: bool = Field(default=False, description="Whether demo mode is active")
+
+
+class VersionResponse(BaseModel):
+    """Version information response."""
+
+    version: str = Field(description="Application version")
+    python_version: str = Field(description="Python version")
+    api_version: str = Field(description="API version")
+    demo_mode: bool = Field(default=False, description="Whether demo mode is active")
+
+
+class DisplayInfo(BaseModel):
+    """Display/monitor information."""
+
+    index: int = Field(description="Display index")
+    name: str = Field(description="Display name")
+    width: int = Field(description="Display width in pixels")
+    height: int = Field(description="Display height in pixels")
+    x: int = Field(description="Display X position")
+    y: int = Field(description="Display Y position")
+    is_primary: bool = Field(default=False, description="Whether this is the primary display")
+    refresh_rate: int = Field(description="Display refresh rate in Hz")
+
+
+class DisplayListResponse(BaseModel):
+    """List of available displays."""
+
+    displays: List[DisplayInfo] = Field(description="Available displays")
+    count: int = Field(description="Number of displays")
+
+
+class ProcessListResponse(BaseModel):
+    """List of running processes."""
+
+    processes: List[str] = Field(description="Sorted list of unique process names")
+    count: int = Field(description="Number of unique processes")
+
+
+class GpuInfo(BaseModel):
+    """GPU performance information."""
+
+    name: str | None = Field(default=None, description="GPU device name")
+    utilization: float | None = Field(default=None, description="GPU core usage percent")
+    memory_used_mb: float | None = Field(default=None, description="GPU memory used in MB")
+    memory_total_mb: float | None = Field(default=None, description="GPU total memory in MB")
+    temperature_c: float | None = Field(default=None, description="GPU temperature in Celsius")
+
+
+class PerformanceResponse(BaseModel):
+    """System performance metrics."""
+
+    cpu_name: str | None = Field(default=None, description="CPU model name")
+    cpu_percent: float = Field(description="System-wide CPU usage percent")
+    ram_used_mb: float = Field(description="RAM used in MB")
+    ram_total_mb: float = Field(description="RAM total in MB")
+    ram_percent: float = Field(description="RAM usage percent")
+    gpu: GpuInfo | None = Field(default=None, description="GPU info (null if unavailable)")
+    timestamp: datetime = Field(description="Measurement timestamp")
+
+
+class RestoreResponse(BaseModel):
+    """Response after restoring configuration backup."""
+
+    status: str = Field(description="Status of restore operation")
+    stores_written: int = Field(description="Number of stores successfully written")
+    stores_total: int = Field(description="Total number of known stores")
+    missing_stores: List[str] = Field(default_factory=list, description="Store keys not found in backup")
+    restart_scheduled: bool = Field(description="Whether server restart was scheduled")
+    message: str = Field(description="Human-readable status message")
+
+
+# ─── Auto-backup schemas ──────────────────────────────────────
+
+class AutoBackupSettings(BaseModel):
+    """Settings for automatic backup."""
+
+    enabled: bool = Field(description="Whether auto-backup is enabled")
+    interval_hours: float = Field(ge=0.5, le=168, description="Backup interval in hours")
+    max_backups: int = Field(ge=1, le=100, description="Maximum number of backup files to keep")
+
+
+class AutoBackupStatusResponse(BaseModel):
+    """Auto-backup settings plus runtime status."""
+
+    enabled: bool
+    interval_hours: float
+    max_backups: int
+    last_backup_time: str | None = None
+    next_backup_time: str | None = None
+
+
+class BackupFileInfo(BaseModel):
+    """Information about a saved backup file."""
+
+    filename: str
+    size_bytes: int
+    created_at: str
+
+
+class BackupListResponse(BaseModel):
+    """List of saved backup files."""
+
+    backups: List[BackupFileInfo]
+    count: int
+
+
+# ─── MQTT schemas ──────────────────────────────────────────────
+
+class MQTTSettingsResponse(BaseModel):
+    """MQTT broker settings response (password is masked)."""
+
+    enabled: bool = Field(description="Whether MQTT is enabled")
+    broker_host: str = Field(description="MQTT broker hostname or IP")
+    broker_port: int = Field(ge=1, le=65535, description="MQTT broker port")
+    username: str = Field(description="MQTT username (empty = anonymous)")
+    password_set: bool = Field(description="Whether a password is configured")
+    client_id: str = Field(description="MQTT client ID")
+    base_topic: str = Field(description="Base topic prefix")
+
+
+class MQTTSettingsRequest(BaseModel):
+    """MQTT broker settings update request."""
+
+    enabled: bool = Field(description="Whether MQTT is enabled")
+    broker_host: str = Field(description="MQTT broker hostname or IP")
+    broker_port: int = Field(ge=1, le=65535, description="MQTT broker port")
+    username: str = Field(default="", description="MQTT username (empty = anonymous)")
+    password: str = Field(default="", description="MQTT password (empty = keep existing if omitted)")
+    client_id: str = Field(default="ledgrab", description="MQTT client ID")
+    base_topic: str = Field(default="ledgrab", description="Base topic prefix")
+
+
+# ─── External URL schema ───────────────────────────────────────
+
+class ExternalUrlResponse(BaseModel):
+    """External URL setting response."""
+
+    external_url: str = Field(description="External base URL (e.g. https://myserver.example.com:8080). Empty = use auto-detected URL.")
+
+
+class ExternalUrlRequest(BaseModel):
+    """External URL setting update request."""
+
+    external_url: str = Field(default="", description="External base URL. Empty string to clear.")
+
+
+# ─── Log level schemas ─────────────────────────────────────────
+
+class LogLevelResponse(BaseModel):
+    """Current log level response."""
+
+    level: str = Field(description="Current effective log level name (e.g. DEBUG, INFO, WARNING, ERROR, CRITICAL)")
+
+
+class LogLevelRequest(BaseModel):
+    """Request to change the log level."""
+
+    level: str = Field(description="New log level name (DEBUG, INFO, WARNING, ERROR, CRITICAL)")

server/src/wled_controller/api/schemas/templates.py

@@ -0,0 +1,79 @@
+"""Capture template and engine schemas."""
+
+from datetime import datetime
+from typing import Dict, List, Optional
+
+from pydantic import BaseModel, Field
+
+
+class TemplateCreate(BaseModel):
+    """Request to create a capture template."""
+
+    name: str = Field(description="Template name", min_length=1, max_length=100)
+    engine_type: str = Field(description="Engine type (e.g., 'mss', 'dxcam', 'wgc')", min_length=1)
+    engine_config: Dict = Field(default_factory=dict, description="Engine-specific configuration")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class TemplateUpdate(BaseModel):
+    """Request to update a template."""
+
+    name: Optional[str] = Field(None, description="Template name", min_length=1, max_length=100)
+    engine_type: Optional[str] = Field(None, description="Capture engine type (mss, dxcam, wgc)")
+    engine_config: Optional[Dict] = Field(None, description="Engine-specific configuration")
+    description: Optional[str] = Field(None, description="Template description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class TemplateResponse(BaseModel):
+    """Template information response."""
+
+    id: str = Field(description="Template ID")
+    name: str = Field(description="Template name")
+    engine_type: str = Field(description="Engine type identifier")
+    engine_config: Dict = Field(description="Engine-specific configuration")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+    description: Optional[str] = Field(None, description="Template description")
+
+
+class TemplateListResponse(BaseModel):
+    """List of templates response."""
+
+    templates: List[TemplateResponse] = Field(description="List of templates")
+    count: int = Field(description="Number of templates")
+
+
+class EngineInfo(BaseModel):
+    """Capture engine information."""
+
+    type: str = Field(description="Engine type identifier (e.g., 'mss', 'dxcam')")
+    name: str = Field(description="Human-readable engine name")
+    default_config: Dict = Field(description="Default configuration for this engine")
+    available: bool = Field(description="Whether engine is available on this system")
+    has_own_displays: bool = Field(default=False, description="Engine has its own device list (not desktop monitors)")
+
+
+class EngineListResponse(BaseModel):
+    """List of available engines response."""
+
+    engines: List[EngineInfo] = Field(description="Available capture engines")
+    count: int = Field(description="Number of engines")
+
+
+class TemplateAssignment(BaseModel):
+    """Request to assign template to device."""
+
+    template_id: str = Field(description="Template ID to assign")
+
+
+class TemplateTestRequest(BaseModel):
+    """Request to test a capture template."""
+
+    engine_type: str = Field(description="Capture engine type to test")
+    engine_config: Dict = Field(default={}, description="Engine configuration")
+    display_index: int = Field(description="Display index to capture")
+    border_width: int = Field(default=10, ge=1, le=100, description="Border width in pixels")
+    capture_duration: float = Field(default=5.0, ge=1.0, le=30.0, description="Duration to capture in seconds")

server/src/wled_controller/api/schemas/value_sources.py

@@ -0,0 +1,97 @@
+"""Value source schemas (CRUD)."""
+
+from datetime import datetime
+from typing import List, Literal, Optional
+
+from pydantic import BaseModel, Field
+
+
+class ValueSourceCreate(BaseModel):
+    """Request to create a value source."""
+
+    name: str = Field(description="Source name", min_length=1, max_length=100)
+    source_type: Literal["static", "animated", "audio", "adaptive_time", "adaptive_scene", "daylight"] = Field(description="Source type")
+    # static fields
+    value: Optional[float] = Field(None, description="Constant value (0.0-1.0)", ge=0.0, le=1.0)
+    # animated fields
+    waveform: Optional[str] = Field(None, description="Waveform: sine|triangle|square|sawtooth")
+    speed: Optional[float] = Field(None, description="Speed: animated=cpm (0.1-120), daylight=multiplier (0.1-10)", ge=0.1, le=120.0)
+    min_value: Optional[float] = Field(None, description="Minimum output (0.0-1.0)", ge=0.0, le=1.0)
+    max_value: Optional[float] = Field(None, description="Maximum output (0.0-1.0)", ge=0.0, le=1.0)
+    # audio fields
+    audio_source_id: Optional[str] = Field(None, description="Mono audio source ID")
+    mode: Optional[str] = Field(None, description="Audio mode: rms|peak|beat")
+    sensitivity: Optional[float] = Field(None, description="Gain multiplier (0.1-20.0)", ge=0.1, le=20.0)
+    smoothing: Optional[float] = Field(None, description="Temporal smoothing (0.0-1.0)", ge=0.0, le=1.0)
+    auto_gain: Optional[bool] = Field(None, description="Auto-normalize audio levels to full range")
+    # adaptive fields
+    schedule: Optional[list] = Field(None, description="Time-of-day schedule: [{time: 'HH:MM', value: 0.0-1.0}]")
+    picture_source_id: Optional[str] = Field(None, description="Picture source ID for scene mode")
+    scene_behavior: Optional[str] = Field(None, description="Scene behavior: complement|match")
+    # daylight fields
+    use_real_time: Optional[bool] = Field(None, description="Use wall-clock time instead of simulation")
+    latitude: Optional[float] = Field(None, description="Geographic latitude (-90 to 90)", ge=-90.0, le=90.0)
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+
+
+class ValueSourceUpdate(BaseModel):
+    """Request to update a value source."""
+
+    name: Optional[str] = Field(None, description="Source name", min_length=1, max_length=100)
+    # static fields
+    value: Optional[float] = Field(None, description="Constant value (0.0-1.0)", ge=0.0, le=1.0)
+    # animated fields
+    waveform: Optional[str] = Field(None, description="Waveform: sine|triangle|square|sawtooth")
+    speed: Optional[float] = Field(None, description="Speed: animated=cpm (0.1-120), daylight=multiplier (0.1-10)", ge=0.1, le=120.0)
+    min_value: Optional[float] = Field(None, description="Minimum output (0.0-1.0)", ge=0.0, le=1.0)
+    max_value: Optional[float] = Field(None, description="Maximum output (0.0-1.0)", ge=0.0, le=1.0)
+    # audio fields
+    audio_source_id: Optional[str] = Field(None, description="Mono audio source ID")
+    mode: Optional[str] = Field(None, description="Audio mode: rms|peak|beat")
+    sensitivity: Optional[float] = Field(None, description="Gain multiplier (0.1-20.0)", ge=0.1, le=20.0)
+    smoothing: Optional[float] = Field(None, description="Temporal smoothing (0.0-1.0)", ge=0.0, le=1.0)
+    auto_gain: Optional[bool] = Field(None, description="Auto-normalize audio levels to full range")
+    # adaptive fields
+    schedule: Optional[list] = Field(None, description="Time-of-day schedule")
+    picture_source_id: Optional[str] = Field(None, description="Picture source ID for scene mode")
+    scene_behavior: Optional[str] = Field(None, description="Scene behavior: complement|match")
+    # daylight fields
+    use_real_time: Optional[bool] = Field(None, description="Use wall-clock time instead of simulation")
+    latitude: Optional[float] = Field(None, description="Geographic latitude (-90 to 90)", ge=-90.0, le=90.0)
+    description: Optional[str] = Field(None, description="Optional description", max_length=500)
+    tags: Optional[List[str]] = None
+
+
+class ValueSourceResponse(BaseModel):
+    """Value source response."""
+
+    id: str = Field(description="Source ID")
+    name: str = Field(description="Source name")
+    source_type: str = Field(description="Source type: static, animated, audio, adaptive_time, or adaptive_scene")
+    value: Optional[float] = Field(None, description="Static value")
+    waveform: Optional[str] = Field(None, description="Waveform type")
+    speed: Optional[float] = Field(None, description="Cycles per minute")
+    min_value: Optional[float] = Field(None, description="Minimum output")
+    max_value: Optional[float] = Field(None, description="Maximum output")
+    audio_source_id: Optional[str] = Field(None, description="Mono audio source ID")
+    mode: Optional[str] = Field(None, description="Audio mode")
+    sensitivity: Optional[float] = Field(None, description="Gain multiplier")
+    smoothing: Optional[float] = Field(None, description="Temporal smoothing")
+    auto_gain: Optional[bool] = Field(None, description="Auto-normalize audio levels")
+    schedule: Optional[list] = Field(None, description="Time-of-day schedule")
+    picture_source_id: Optional[str] = Field(None, description="Picture source ID")
+    scene_behavior: Optional[str] = Field(None, description="Scene behavior")
+    use_real_time: Optional[bool] = Field(None, description="Use wall-clock time")
+    latitude: Optional[float] = Field(None, description="Geographic latitude")
+    description: Optional[str] = Field(None, description="Description")
+    tags: List[str] = Field(default_factory=list, description="User-defined tags")
+    created_at: datetime = Field(description="Creation timestamp")
+    updated_at: datetime = Field(description="Last update timestamp")
+
+
+class ValueSourceListResponse(BaseModel):
+    """List of value sources."""
+
+    sources: List[ValueSourceResponse] = Field(description="List of value sources")
+    count: int = Field(description="Number of sources")

server/src/wled_controller/config.py

@@ -24,37 +24,35 @@ class AuthConfig(BaseSettings):
     api_keys: dict[str, str] = {}  # label: key mapping (required for security)
 
 
-class ProcessingConfig(BaseSettings):
-    """Processing configuration."""
-
-    default_fps: int = 30
-    max_fps: int = 60
-    min_fps: int = 1
-    border_width: int = 10
-    interpolation_mode: Literal["average", "median", "dominant"] = "average"
-
-
-class ScreenCaptureConfig(BaseSettings):
-    """Screen capture configuration."""
-
-    buffer_size: int = 2
-
-
-class WLEDConfig(BaseSettings):
-    """WLED client configuration."""
-
-    timeout: int = 5
-    retry_attempts: int = 3
-    retry_delay: int = 1
-    protocol: Literal["http", "https"] = "http"
-    max_brightness: int = 255
-
-
 class StorageConfig(BaseSettings):
     """Storage configuration."""
 
     devices_file: str = "data/devices.json"
     templates_file: str = "data/capture_templates.json"
+    postprocessing_templates_file: str = "data/postprocessing_templates.json"
+    picture_sources_file: str = "data/picture_sources.json"
+    output_targets_file: str = "data/output_targets.json"
+    pattern_templates_file: str = "data/pattern_templates.json"
+    color_strip_sources_file: str = "data/color_strip_sources.json"
+    audio_sources_file: str = "data/audio_sources.json"
+    audio_templates_file: str = "data/audio_templates.json"
+    value_sources_file: str = "data/value_sources.json"
+    automations_file: str = "data/automations.json"
+    scene_presets_file: str = "data/scene_presets.json"
+    color_strip_processing_templates_file: str = "data/color_strip_processing_templates.json"
+    sync_clocks_file: str = "data/sync_clocks.json"
+
+
+class MQTTConfig(BaseSettings):
+    """MQTT broker configuration."""
+
+    enabled: bool = False
+    broker_host: str = "localhost"
+    broker_port: int = 1883
+    username: str = ""
+    password: str = ""
+    client_id: str = "ledgrab"
+    base_topic: str = "ledgrab"
 
 
 class LoggingConfig(BaseSettings):
@@ -75,14 +73,22 @@ class Config(BaseSettings):
         case_sensitive=False,
     )
 
+    demo: bool = False
+
     server: ServerConfig = Field(default_factory=ServerConfig)
     auth: AuthConfig = Field(default_factory=AuthConfig)
-    processing: ProcessingConfig = Field(default_factory=ProcessingConfig)
-    screen_capture: ScreenCaptureConfig = Field(default_factory=ScreenCaptureConfig)
-    wled: WLEDConfig = Field(default_factory=WLEDConfig)
     storage: StorageConfig = Field(default_factory=StorageConfig)
+    mqtt: MQTTConfig = Field(default_factory=MQTTConfig)
     logging: LoggingConfig = Field(default_factory=LoggingConfig)
 
+    def model_post_init(self, __context: object) -> None:
+        """Override storage paths when demo mode is active."""
+        if self.demo:
+            for field_name in self.storage.model_fields:
+                value = getattr(self.storage, field_name)
+                if isinstance(value, str) and value.startswith("data/"):
+                    setattr(self.storage, field_name, value.replace("data/", "data/demo/", 1))
+
     @classmethod
     def from_yaml(cls, config_path: str | Path) -> "Config":
         """Load configuration from YAML file.
@@ -97,7 +103,7 @@ class Config(BaseSettings):
         if not config_path.exists():
             raise FileNotFoundError(f"Configuration file not found: {config_path}")
 
-        with open(config_path, "r") as f:
+        with open(config_path, "r", encoding="utf-8") as f:
             config_data = yaml.safe_load(f)
 
         return cls(**config_data)
@@ -108,8 +114,9 @@ class Config(BaseSettings):
 
         Tries to load from:
         1. Environment variable WLED_CONFIG_PATH
-        2. ./config/default_config.yaml
+        2. WLED_DEMO=true → ./config/demo_config.yaml (if it exists)
-        3. Default values
+        3. ./config/default_config.yaml
+        4. Default values
 
         Returns:
             Config instance
@@ -119,6 +126,12 @@ class Config(BaseSettings):
         if config_path:
             return cls.from_yaml(config_path)
 
+        # Demo mode: try dedicated demo config first
+        if os.getenv("WLED_DEMO", "").lower() in ("true", "1", "yes"):
+            demo_path = Path("config/demo_config.yaml")
+            if demo_path.exists():
+                return cls.from_yaml(demo_path)
+
         # Try default location
         default_path = Path("config/default_config.yaml")
         if default_path.exists():
@@ -153,3 +166,8 @@ def reload_config() -> Config:
     global config
     config = Config.load()
     return config
+
+
+def is_demo_mode() -> bool:
+    """Check whether the application is running in demo mode."""
+    return get_config().demo

server/src/wled_controller/core/__init__.py

@@ -1,6 +1,6 @@
 """Core functionality for screen capture and WLED control."""
 
-from .screen_capture import (
+from wled_controller.core.capture.screen_capture import (
     get_available_displays,
     capture_display,
     extract_border_pixels,

server/src/wled_controller/core/audio/__init__.py

@@ -0,0 +1,41 @@
+"""Audio capture engine abstraction layer."""
+
+from wled_controller.core.audio.base import (
+    AudioCaptureEngine,
+    AudioCaptureStreamBase,
+    AudioDeviceInfo,
+)
+from wled_controller.core.audio.factory import AudioEngineRegistry
+from wled_controller.core.audio.analysis import (
+    AudioAnalysis,
+    AudioAnalyzer,
+    NUM_BANDS,
+    DEFAULT_SAMPLE_RATE,
+    DEFAULT_CHUNK_SIZE,
+)
+from wled_controller.core.audio.wasapi_engine import WasapiEngine, WasapiCaptureStream
+from wled_controller.core.audio.sounddevice_engine import SounddeviceEngine, SounddeviceCaptureStream
+from wled_controller.core.audio.demo_engine import DemoAudioEngine, DemoAudioCaptureStream
+
+# Auto-register available engines
+AudioEngineRegistry.register(WasapiEngine)
+AudioEngineRegistry.register(SounddeviceEngine)
+AudioEngineRegistry.register(DemoAudioEngine)
+
+__all__ = [
+    "AudioCaptureEngine",
+    "AudioCaptureStreamBase",
+    "AudioDeviceInfo",
+    "AudioEngineRegistry",
+    "AudioAnalysis",
+    "AudioAnalyzer",
+    "NUM_BANDS",
+    "DEFAULT_SAMPLE_RATE",
+    "DEFAULT_CHUNK_SIZE",
+    "WasapiEngine",
+    "WasapiCaptureStream",
+    "SounddeviceEngine",
+    "SounddeviceCaptureStream",
+    "DemoAudioEngine",
+    "DemoAudioCaptureStream",
+]

server/src/wled_controller/core/audio/analysis.py

@@ -0,0 +1,252 @@
+"""Shared audio analysis — FFT spectrum, RMS, beat detection.
+
+Engines provide raw audio chunks; AudioAnalyzer processes them into
+AudioAnalysis snapshots consumed by visualization streams.
+"""
+
+import math
+import time
+from dataclasses import dataclass, field
+from typing import List, Tuple
+
+import numpy as np
+
+# Number of logarithmic frequency bands for spectrum analysis
+NUM_BANDS = 64
+
+# Audio defaults
+DEFAULT_SAMPLE_RATE = 44100
+DEFAULT_CHUNK_SIZE = 2048  # ~46 ms at 44100 Hz
+
+
+@dataclass
+class AudioAnalysis:
+    """Snapshot of audio analysis results.
+
+    Written by the capture thread, read by visualization streams.
+    Mono fields contain the mixed-down signal (all channels averaged).
+    Per-channel fields (left/right) are populated when the source is stereo+.
+    For mono sources, left/right are copies of the mono data.
+    """
+
+    timestamp: float = 0.0
+    # Mono (mixed) — backward-compatible fields
+    rms: float = 0.0
+    peak: float = 0.0
+    spectrum: np.ndarray = field(default_factory=lambda: np.zeros(NUM_BANDS, dtype=np.float32))
+    beat: bool = False
+    beat_intensity: float = 0.0
+    # Per-channel
+    left_rms: float = 0.0
+    left_spectrum: np.ndarray = field(default_factory=lambda: np.zeros(NUM_BANDS, dtype=np.float32))
+    right_rms: float = 0.0
+    right_spectrum: np.ndarray = field(default_factory=lambda: np.zeros(NUM_BANDS, dtype=np.float32))
+
+
+def _build_log_bands(num_bands: int, fft_size: int, sample_rate: int) -> List[Tuple[int, int]]:
+    """Build logarithmically-spaced frequency band boundaries for FFT bins.
+
+    Returns list of (start_bin, end_bin) pairs.
+    """
+    nyquist = sample_rate / 2
+    min_freq = 20.0
+    max_freq = min(nyquist, 20000.0)
+    log_min = math.log10(min_freq)
+    log_max = math.log10(max_freq)
+
+    freqs = np.logspace(log_min, log_max, num_bands + 1)
+    bin_width = sample_rate / fft_size
+
+    bands = []
+    for i in range(num_bands):
+        start_bin = max(1, int(freqs[i] / bin_width))
+        end_bin = max(start_bin + 1, int(freqs[i + 1] / bin_width))
+        end_bin = min(end_bin, fft_size // 2)
+        bands.append((start_bin, end_bin))
+    return bands
+
+
+class AudioAnalyzer:
+    """Stateful audio analyzer — call analyze() per raw chunk.
+
+    Maintains smoothing buffers, energy history for beat detection,
+    and pre-allocated FFT scratch buffers. Thread-safe only if a single
+    thread calls analyze() (the capture thread).
+    """
+
+    def __init__(self, sample_rate: int = DEFAULT_SAMPLE_RATE, chunk_size: int = DEFAULT_CHUNK_SIZE):
+        self._sample_rate = sample_rate
+        self._chunk_size = chunk_size
+
+        # FFT helpers
+        self._window = np.hanning(chunk_size).astype(np.float32)
+        self._bands = _build_log_bands(NUM_BANDS, chunk_size, sample_rate)
+
+        # Beat detection state
+        self._energy_history: np.ndarray = np.zeros(43, dtype=np.float64)  # ~1s at 44100/2048
+        self._energy_idx = 0
+
+        # Smoothed spectrum (exponential decay)
+        self._smooth_spectrum = np.zeros(NUM_BANDS, dtype=np.float32)
+        self._smooth_spectrum_left = np.zeros(NUM_BANDS, dtype=np.float32)
+        self._smooth_spectrum_right = np.zeros(NUM_BANDS, dtype=np.float32)
+        self._smoothing_alpha = 0.3
+
+        # Pre-allocated scratch buffers
+        self._fft_windowed = np.empty(chunk_size, dtype=np.float32)
+        self._spectrum_buf = np.zeros(NUM_BANDS, dtype=np.float32)
+        self._spectrum_buf_left = np.zeros(NUM_BANDS, dtype=np.float32)
+        self._spectrum_buf_right = np.zeros(NUM_BANDS, dtype=np.float32)
+        self._sq_buf = np.empty(chunk_size, dtype=np.float32)
+
+        # Double-buffered output spectra — avoids allocating new arrays each
+        # analyze() call.  Consumers hold a reference to the "old" buffer while
+        # the analyzer writes into the alternate one.
+        self._out_spectrum = [np.zeros(NUM_BANDS, dtype=np.float32),
+                              np.zeros(NUM_BANDS, dtype=np.float32)]
+        self._out_spectrum_left = [np.zeros(NUM_BANDS, dtype=np.float32),
+                                   np.zeros(NUM_BANDS, dtype=np.float32)]
+        self._out_spectrum_right = [np.zeros(NUM_BANDS, dtype=np.float32),
+                                    np.zeros(NUM_BANDS, dtype=np.float32)]
+        self._out_idx = 0  # toggles 0/1 each analyze() call
+
+        # Pre-compute band start/end arrays and widths for vectorized binning
+        self._band_starts = np.array([s for s, _ in self._bands], dtype=np.intp)
+        self._band_ends = np.array([e for _, e in self._bands], dtype=np.intp)
+        self._band_widths = (self._band_ends - self._band_starts).astype(np.float32)
+        self._band_widths[self._band_widths == 0] = 1.0  # avoid divide-by-zero
+
+        # Pre-allocated channel buffers for stereo
+        self._left_buf = np.empty(chunk_size, dtype=np.float32)
+        self._right_buf = np.empty(chunk_size, dtype=np.float32)
+        self._mono_buf = np.empty(chunk_size, dtype=np.float32)
+
+    @property
+    def sample_rate(self) -> int:
+        return self._sample_rate
+
+    @sample_rate.setter
+    def sample_rate(self, value: int):
+        if value != self._sample_rate:
+            self._sample_rate = value
+            self._bands = _build_log_bands(NUM_BANDS, self._chunk_size, value)
+
+    def analyze(self, raw_data: np.ndarray, channels: int) -> AudioAnalysis:
+        """Analyze a raw audio chunk and return an AudioAnalysis snapshot.
+
+        Args:
+            raw_data: 1-D float32 array of interleaved samples (length = chunk_size * channels)
+            channels: Number of audio channels
+
+        Returns:
+            AudioAnalysis with spectrum, RMS, beat, etc.
+        """
+        chunk_size = self._chunk_size
+        alpha = self._smoothing_alpha
+        one_minus_alpha = 1.0 - alpha
+
+        # Split channels and mix to mono
+        if channels > 1:
+            data = raw_data.reshape(-1, channels)
+            np.copyto(self._left_buf[:len(data)], data[:, 0])
+            right_col = data[:, 1] if channels >= 2 else data[:, 0]
+            np.copyto(self._right_buf[:len(data)], right_col)
+            np.add(data[:, 0], right_col, out=self._mono_buf[:len(data)])
+            self._mono_buf[:len(data)] *= 0.5
+            samples = self._mono_buf[:len(data)]
+            left_samples = self._left_buf[:len(data)]
+            right_samples = self._right_buf[:len(data)]
+        else:
+            samples = raw_data
+            left_samples = samples
+            right_samples = samples
+
+        # RMS and peak
+        n = len(samples)
+        np.multiply(samples, samples, out=self._sq_buf[:n])
+        rms = float(np.sqrt(np.mean(self._sq_buf[:n])))
+        peak = float(np.max(np.abs(samples)))
+
+        if channels > 1:
+            np.multiply(left_samples, left_samples, out=self._sq_buf[:n])
+            left_rms = float(np.sqrt(np.mean(self._sq_buf[:n])))
+            np.multiply(right_samples, right_samples, out=self._sq_buf[:n])
+            right_rms = float(np.sqrt(np.mean(self._sq_buf[:n])))
+        else:
+            left_rms = rms
+            right_rms = rms
+
+        # FFT for mono, left, right
+        self._fft_bands(samples, self._spectrum_buf, self._smooth_spectrum,
+                        alpha, one_minus_alpha)
+        if channels > 1:
+            self._fft_bands(left_samples, self._spectrum_buf_left, self._smooth_spectrum_left,
+                            alpha, one_minus_alpha)
+            self._fft_bands(right_samples, self._spectrum_buf_right, self._smooth_spectrum_right,
+                            alpha, one_minus_alpha)
+        else:
+            np.copyto(self._smooth_spectrum_left, self._smooth_spectrum)
+            np.copyto(self._smooth_spectrum_right, self._smooth_spectrum)
+
+        # Beat detection — compare current energy to rolling average (mono)
+        np.multiply(samples, samples, out=self._sq_buf[:n])
+        energy = float(np.sum(self._sq_buf[:n]))
+        self._energy_history[self._energy_idx] = energy
+        self._energy_idx = (self._energy_idx + 1) % len(self._energy_history)
+        avg_energy = float(np.mean(self._energy_history))
+
+        beat = False
+        beat_intensity = 0.0
+        if avg_energy > 1e-8:
+            ratio = energy / avg_energy
+            if ratio > 1.5:
+                beat = True
+                beat_intensity = min(1.0, (ratio - 1.0) / 2.0)
+
+        # Snapshot spectra into double-buffered output arrays (no allocation)
+        idx = self._out_idx
+        self._out_idx = 1 - idx
+        out_spec = self._out_spectrum[idx]
+        out_left = self._out_spectrum_left[idx]
+        out_right = self._out_spectrum_right[idx]
+        np.copyto(out_spec, self._smooth_spectrum)
+        np.copyto(out_left, self._smooth_spectrum_left)
+        np.copyto(out_right, self._smooth_spectrum_right)
+
+        return AudioAnalysis(
+            timestamp=time.perf_counter(),
+            rms=rms,
+            peak=peak,
+            spectrum=out_spec,
+            beat=beat,
+            beat_intensity=beat_intensity,
+            left_rms=left_rms,
+            left_spectrum=out_left,
+            right_rms=right_rms,
+            right_spectrum=out_right,
+        )
+
+    def _fft_bands(self, samps, buf, smooth_buf, alpha, one_minus_alpha):
+        """Compute FFT, bin into bands, normalize, and smooth."""
+        chunk_size = self._chunk_size
+        chunk = samps[:chunk_size]
+        if len(chunk) < chunk_size:
+            chunk = np.pad(chunk, (0, chunk_size - len(chunk)))
+        np.multiply(chunk, self._window, out=self._fft_windowed)
+        fft_mag = np.abs(np.fft.rfft(self._fft_windowed))
+        fft_mag *= (1.0 / chunk_size)
+        fft_len = len(fft_mag)
+        # Vectorized band binning using cumulative sum
+        valid = (self._band_starts < fft_len) & (self._band_ends <= fft_len) & (self._band_ends > 0)
+        buf[:] = 0.0
+        if valid.any():
+            cumsum = np.cumsum(fft_mag)
+            band_sums = cumsum[self._band_ends[valid] - 1] - np.where(
+                self._band_starts[valid] > 0, cumsum[self._band_starts[valid] - 1], 0.0
+            )
+            buf[valid] = band_sums / self._band_widths[valid]
+        spec_max = float(np.max(buf))
+        if spec_max > 1e-6:
+            buf *= (1.0 / spec_max)
+        smooth_buf *= one_minus_alpha
+        smooth_buf += alpha * buf

server/src/wled_controller/core/audio/audio_capture.py

@@ -0,0 +1,322 @@
+"""Audio capture service — shared audio analysis with ref counting.
+
+Provides real-time FFT spectrum, RMS level, and beat detection from
+system audio or microphone/line-in.  Multiple AudioColorStripStreams
+sharing the same device reuse a single capture thread via
+AudioCaptureManager.
+
+Engine-agnostic: uses AudioEngineRegistry to create the underlying
+capture stream (WASAPI, sounddevice, etc.).
+"""
+
+import threading
+import time
+from typing import Any, Dict, List, Optional, Tuple
+
+from wled_controller.core.audio.analysis import (
+    AudioAnalysis,
+    AudioAnalyzer,
+    DEFAULT_CHUNK_SIZE,
+    DEFAULT_SAMPLE_RATE,
+)
+from wled_controller.core.audio.base import AudioCaptureStreamBase
+from wled_controller.core.audio.factory import AudioEngineRegistry
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+
+
+# Re-export for backward compatibility
+__all__ = [
+    "AudioAnalysis",
+    "ManagedAudioStream",
+    "AudioCaptureManager",
+]
+
+
+# ---------------------------------------------------------------------------
+# ManagedAudioStream — wraps engine stream + analyzer in background thread
+# ---------------------------------------------------------------------------
+
+class ManagedAudioStream:
+    """Wraps an AudioCaptureStreamBase + AudioAnalyzer in a background thread.
+
+    Public API is the same as the old AudioCaptureStream:
+    start(), stop(), get_latest_analysis(), get_last_timing().
+    """
+
+    def __init__(
+        self,
+        engine_type: str,
+        device_index: int,
+        is_loopback: bool,
+        engine_config: Optional[Dict[str, Any]] = None,
+    ):
+        self._engine_type = engine_type
+        self._device_index = device_index
+        self._is_loopback = is_loopback
+        self._engine_config = engine_config or {}
+
+        self._running = False
+        self._thread: Optional[threading.Thread] = None
+        self._lock = threading.Lock()
+        self._latest: Optional[AudioAnalysis] = None
+        self._last_timing: dict = {}
+
+    def start(self) -> None:
+        if self._running:
+            return
+        self._running = True
+        self._thread = threading.Thread(
+            target=self._capture_loop, daemon=True,
+            name=f"AudioCapture-{self._engine_type}-{self._device_index}-"
+                 f"{'lb' if self._is_loopback else 'in'}",
+        )
+        self._thread.start()
+        logger.info(
+            f"ManagedAudioStream started: engine={self._engine_type} "
+            f"device={self._device_index} loopback={self._is_loopback}"
+        )
+
+    def stop(self) -> None:
+        self._running = False
+        if self._thread is not None:
+            self._thread.join(timeout=5.0)
+            self._thread = None
+        with self._lock:
+            self._latest = None
+        logger.info(
+            f"ManagedAudioStream stopped: engine={self._engine_type} "
+            f"device={self._device_index}"
+        )
+
+    def get_latest_analysis(self) -> Optional[AudioAnalysis]:
+        with self._lock:
+            return self._latest
+
+    def get_last_timing(self) -> dict:
+        return dict(self._last_timing)
+
+    def _capture_loop(self) -> None:
+        stream: Optional[AudioCaptureStreamBase] = None
+        try:
+            stream = AudioEngineRegistry.create_stream(
+                self._engine_type, self._device_index,
+                self._is_loopback, self._engine_config,
+            )
+            stream.initialize()
+
+            sample_rate = stream.sample_rate
+            chunk_size = stream.chunk_size
+            channels = stream.channels
+
+            analyzer = AudioAnalyzer(sample_rate=sample_rate, chunk_size=chunk_size)
+
+            logger.info(
+                f"Audio stream opened: engine={self._engine_type} "
+                f"device={self._device_index} loopback={self._is_loopback} "
+                f"channels={channels} sr={sample_rate}"
+            )
+
+            while self._running:
+                t_read_start = time.perf_counter()
+                raw_data = stream.read_chunk()
+                if raw_data is None:
+                    time.sleep(0.05)
+                    continue
+                t_read_end = time.perf_counter()
+
+                analysis = analyzer.analyze(raw_data, channels)
+
+                t_fft_end = time.perf_counter()
+                self._last_timing = {
+                    "read_ms": (t_read_end - t_read_start) * 1000,
+                    "fft_ms": (t_fft_end - t_read_end) * 1000,
+                }
+
+                with self._lock:
+                    self._latest = analysis
+
+        except Exception as e:
+            logger.error(f"ManagedAudioStream fatal error: {e}", exc_info=True)
+        finally:
+            if stream is not None:
+                try:
+                    stream.cleanup()
+                except Exception:
+                    pass
+            self._running = False
+            logger.info(
+                f"ManagedAudioStream loop ended: engine={self._engine_type} "
+                f"device={self._device_index}"
+            )
+
+
+# ---------------------------------------------------------------------------
+# AudioCaptureManager — ref-counted shared capture streams
+# ---------------------------------------------------------------------------
+
+class AudioCaptureManager:
+    """Manages shared ManagedAudioStream instances with reference counting.
+
+    Multiple AudioColorStripStreams using the same audio device share a
+    single capture thread. Key: (engine_type, device_index, is_loopback).
+    """
+
+    def __init__(self):
+        self._streams: Dict[
+            Tuple[str, int, bool],
+            Tuple[ManagedAudioStream, int],
+        ] = {}
+        self._lock = threading.Lock()
+
+    def acquire(
+        self,
+        device_index: int,
+        is_loopback: bool,
+        engine_type: Optional[str] = None,
+        engine_config: Optional[Dict[str, Any]] = None,
+    ) -> ManagedAudioStream:
+        """Get or create a ManagedAudioStream for the given device.
+
+        Args:
+            device_index: Audio device index
+            is_loopback: Whether to capture loopback audio
+            engine_type: Engine type (falls back to best available if None)
+            engine_config: Engine-specific configuration
+
+        Returns:
+            Shared ManagedAudioStream instance.
+        """
+        if engine_type is None:
+            engine_type = AudioEngineRegistry.get_best_available_engine()
+            if engine_type is None:
+                raise RuntimeError("No audio capture engines available")
+
+        key = (engine_type, device_index, is_loopback)
+        with self._lock:
+            if key in self._streams:
+                stream, ref_count = self._streams[key]
+                self._streams[key] = (stream, ref_count + 1)
+                logger.info(f"Reusing audio capture {key} (ref_count={ref_count + 1})")
+                return stream
+
+            stream = ManagedAudioStream(
+                engine_type, device_index, is_loopback, engine_config,
+            )
+            stream.start()
+            self._streams[key] = (stream, 1)
+            logger.info(f"Created audio capture {key}")
+            return stream
+
+    def release(
+        self,
+        device_index: int,
+        is_loopback: bool,
+        engine_type: Optional[str] = None,
+    ) -> None:
+        """Release a reference to a ManagedAudioStream."""
+        if engine_type is None:
+            engine_type = AudioEngineRegistry.get_best_available_engine()
+            if engine_type is None:
+                return
+
+        key = (engine_type, device_index, is_loopback)
+        stream_to_stop = None
+        with self._lock:
+            if key not in self._streams:
+                logger.warning(f"Attempted to release unknown audio capture: {key}")
+                return
+
+            stream, ref_count = self._streams[key]
+            ref_count -= 1
+            if ref_count <= 0:
+                stream_to_stop = stream
+                del self._streams[key]
+                logger.info(f"Removed audio capture {key}")
+            else:
+                self._streams[key] = (stream, ref_count)
+                logger.debug(f"Released audio capture {key} (ref_count={ref_count})")
+        # Stop outside the lock — stream.stop() joins a thread (up to 5s)
+        if stream_to_stop is not None:
+            stream_to_stop.stop()
+
+    def release_all(self) -> None:
+        """Stop and remove all capture streams. Called on shutdown."""
+        with self._lock:
+            streams_to_stop = list(self._streams.items())
+            self._streams.clear()
+        # Stop outside the lock — each stop() joins a thread
+        for key, (stream, _) in streams_to_stop:
+            try:
+                stream.stop()
+            except Exception as e:
+                logger.error(f"Error stopping audio capture {key}: {e}")
+        logger.info("Released all audio capture streams")
+
+    @staticmethod
+    def enumerate_devices() -> List[dict]:
+        """List available audio devices from all registered engines.
+
+        Returns list of dicts with device info, each tagged with engine_type.
+        Deduplicates by (name, is_loopback), keeping the entry from the
+        highest-priority engine.
+        """
+        # Collect from all engines, sorted by descending priority
+        engines = [
+            (engine_class.ENGINE_PRIORITY, engine_type, engine_class)
+            for engine_type, engine_class in AudioEngineRegistry.get_all_engines().items()
+        ]
+        engines.sort(key=lambda x: x[0], reverse=True)
+
+        seen: set = set()
+        result = []
+        for _priority, engine_type, engine_class in engines:
+            try:
+                if not engine_class.is_available():
+                    continue
+                for dev in engine_class.enumerate_devices():
+                    key = (dev.name, dev.is_loopback)
+                    if key in seen:
+                        continue
+                    seen.add(key)
+                    result.append({
+                        "index": dev.index,
+                        "name": dev.name,
+                        "is_input": dev.is_input,
+                        "is_loopback": dev.is_loopback,
+                        "channels": dev.channels,
+                        "default_samplerate": dev.default_samplerate,
+                        "engine_type": engine_type,
+                    })
+            except Exception as e:
+                logger.error(f"Error enumerating devices for engine '{engine_type}': {e}")
+        return result
+
+    @staticmethod
+    def enumerate_devices_by_engine() -> Dict[str, List[dict]]:
+        """List available audio devices grouped by engine type.
+
+        Unlike enumerate_devices(), does NOT deduplicate across engines.
+        Each engine's devices are returned with their engine-specific indices.
+        """
+        result: Dict[str, List[dict]] = {}
+        for engine_type, engine_class in AudioEngineRegistry.get_all_engines().items():
+            try:
+                if not engine_class.is_available():
+                    continue
+                devices = []
+                for dev in engine_class.enumerate_devices():
+                    devices.append({
+                        "index": dev.index,
+                        "name": dev.name,
+                        "is_input": dev.is_input,
+                        "is_loopback": dev.is_loopback,
+                        "channels": dev.channels,
+                        "default_samplerate": dev.default_samplerate,
+                        "engine_type": engine_type,
+                    })
+                result[engine_type] = devices
+            except Exception as e:
+                logger.error(f"Error enumerating devices for engine '{engine_type}': {e}")
+        return result

server/src/wled_controller/core/audio/base.py

@@ -0,0 +1,165 @@
+"""Base classes for audio capture engines."""
+
+from abc import ABC, abstractmethod
+from dataclasses import dataclass
+from typing import Any, Dict, List, Optional
+
+import numpy as np
+
+
+@dataclass
+class AudioDeviceInfo:
+    """Information about an audio device."""
+
+    index: int
+    name: str
+    is_input: bool
+    is_loopback: bool
+    channels: int
+    default_samplerate: float
+
+
+class AudioCaptureStreamBase(ABC):
+    """Abstract base class for an audio capture session.
+
+    An AudioCaptureStreamBase is a stateful session bound to a specific
+    audio device. It holds device-specific resources and provides raw
+    audio chunk reading.
+
+    Created by AudioCaptureEngine.create_stream().
+
+    Lifecycle:
+        stream = engine.create_stream(device_index, is_loopback, config)
+        stream.initialize()
+        chunk = stream.read_chunk()
+        stream.cleanup()
+
+    Or via context manager:
+        with engine.create_stream(device_index, is_loopback, config) as stream:
+            chunk = stream.read_chunk()
+    """
+
+    def __init__(
+        self,
+        device_index: int,
+        is_loopback: bool,
+        config: Dict[str, Any],
+    ):
+        self.device_index = device_index
+        self.is_loopback = is_loopback
+        self.config = config
+        self._initialized = False
+
+    @property
+    @abstractmethod
+    def channels(self) -> int:
+        """Number of audio channels in the stream."""
+        pass
+
+    @property
+    @abstractmethod
+    def sample_rate(self) -> int:
+        """Sample rate of the audio stream."""
+        pass
+
+    @property
+    @abstractmethod
+    def chunk_size(self) -> int:
+        """Number of frames per read_chunk() call."""
+        pass
+
+    @abstractmethod
+    def initialize(self) -> None:
+        """Initialize audio capture resources.
+
+        Raises:
+            RuntimeError: If initialization fails
+        """
+        pass
+
+    @abstractmethod
+    def cleanup(self) -> None:
+        """Release all audio capture resources."""
+        pass
+
+    @abstractmethod
+    def read_chunk(self) -> Optional[np.ndarray]:
+        """Read one chunk of raw audio data.
+
+        Returns:
+            1-D float32 ndarray of interleaved samples (length = chunk_size * channels),
+            or None if no data available.
+
+        Raises:
+            RuntimeError: If read fails
+        """
+        pass
+
+    def __enter__(self):
+        """Context manager entry — initialize stream."""
+        self.initialize()
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        """Context manager exit — cleanup stream."""
+        self.cleanup()
+
+
+class AudioCaptureEngine(ABC):
+    """Abstract base class for audio capture engines.
+
+    An AudioCaptureEngine is a stateless factory that knows about an audio
+    capture technology. It can enumerate devices, check availability, and
+    create AudioCaptureStreamBase instances.
+
+    All methods are classmethods — no instance creation needed.
+    """
+
+    ENGINE_TYPE: str = "base"
+    ENGINE_PRIORITY: int = 0
+
+    @classmethod
+    @abstractmethod
+    def is_available(cls) -> bool:
+        """Check if this engine is available on the current system."""
+        pass
+
+    @classmethod
+    @abstractmethod
+    def get_default_config(cls) -> Dict[str, Any]:
+        """Get default configuration for this engine."""
+        pass
+
+    @classmethod
+    @abstractmethod
+    def enumerate_devices(cls) -> List[AudioDeviceInfo]:
+        """Get list of available audio devices.
+
+        Returns:
+            List of AudioDeviceInfo objects
+
+        Raises:
+            RuntimeError: If unable to detect devices
+        """
+        pass
+
+    @classmethod
+    @abstractmethod
+    def create_stream(
+        cls,
+        device_index: int,
+        is_loopback: bool,
+        config: Dict[str, Any],
+    ) -> AudioCaptureStreamBase:
+        """Create a capture stream for the specified device.
+
+        Args:
+            device_index: Index of audio device
+            is_loopback: Whether to capture loopback audio
+            config: Engine-specific configuration dict
+
+        Returns:
+            Uninitialized AudioCaptureStreamBase. Caller must call
+            initialize() or use as context manager.
+        """
+        pass

server/src/wled_controller/core/audio/demo_engine.py

@@ -0,0 +1,153 @@
+"""Demo audio engine — virtual audio devices with synthetic audio data."""
+
+import time
+from typing import Any, Dict, List, Optional
+
+import numpy as np
+
+from wled_controller.config import is_demo_mode
+from wled_controller.core.audio.base import (
+    AudioCaptureEngine,
+    AudioCaptureStreamBase,
+    AudioDeviceInfo,
+)
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+
+# Virtual audio device definitions: (name, is_loopback, channels, samplerate)
+_VIRTUAL_DEVICES = [
+    ("Demo Microphone", False, 2, 44100.0),
+    ("Demo System Audio", True, 2, 44100.0),
+]
+
+
+class DemoAudioCaptureStream(AudioCaptureStreamBase):
+    """Demo audio capture stream that produces synthetic music-like audio.
+
+    Generates a mix of sine waves with slowly varying frequencies to
+    simulate beat-like patterns suitable for audio-reactive visualizations.
+    """
+
+    def __init__(self, device_index: int, is_loopback: bool, config: Dict[str, Any]):
+        super().__init__(device_index, is_loopback, config)
+        self._channels = 2
+        self._sample_rate = 44100
+        self._chunk_size = 1024
+        self._phase = 0.0  # Accumulated phase in samples for continuity
+
+    @property
+    def channels(self) -> int:
+        return self._channels
+
+    @property
+    def sample_rate(self) -> int:
+        return self._sample_rate
+
+    @property
+    def chunk_size(self) -> int:
+        return self._chunk_size
+
+    def initialize(self) -> None:
+        if self._initialized:
+            return
+        self._phase = 0.0
+        self._initialized = True
+        logger.info(
+            f"Demo audio stream initialized "
+            f"(device={self.device_index}, loopback={self.is_loopback})"
+        )
+
+    def cleanup(self) -> None:
+        self._initialized = False
+        logger.info(f"Demo audio stream cleaned up (device={self.device_index})")
+
+    def read_chunk(self) -> Optional[np.ndarray]:
+        if not self._initialized:
+            return None
+
+        t_now = time.time()
+        n = self._chunk_size
+        sr = self._sample_rate
+
+        # Sample indices for this chunk (continuous across calls)
+        t = (self._phase + np.arange(n, dtype=np.float64)) / sr
+        self._phase += n
+
+        # --- Synthetic "music" signal ---
+        # Bass drum: ~80 Hz with slow amplitude envelope (~2 Hz beat)
+        bass_freq = 80.0
+        beat_rate = 2.0  # beats per second
+        bass_env = np.maximum(0.0, np.sin(2.0 * np.pi * beat_rate * t)) ** 4
+        bass = 0.5 * bass_env * np.sin(2.0 * np.pi * bass_freq * t)
+
+        # Mid-range tone: slowly sweeping between 300-600 Hz
+        mid_freq = 450.0 + 150.0 * np.sin(2.0 * np.pi * 0.1 * t_now)
+        mid = 0.25 * np.sin(2.0 * np.pi * mid_freq * t)
+
+        # High shimmer: ~3 kHz with faster modulation
+        hi_freq = 3000.0 + 500.0 * np.sin(2.0 * np.pi * 0.3 * t_now)
+        hi_env = 0.5 + 0.5 * np.sin(2.0 * np.pi * 4.0 * t)
+        hi = 0.1 * hi_env * np.sin(2.0 * np.pi * hi_freq * t)
+
+        # Mix mono signal
+        mono = (bass + mid + hi).astype(np.float32)
+
+        # Interleave stereo (identical L/R)
+        stereo = np.empty(n * self._channels, dtype=np.float32)
+        stereo[0::2] = mono
+        stereo[1::2] = mono
+
+        return stereo
+
+
+class DemoAudioEngine(AudioCaptureEngine):
+    """Virtual audio engine for demo mode.
+
+    Provides virtual audio devices and produces synthetic audio data
+    so the full audio-reactive pipeline works without real audio hardware.
+    """
+
+    ENGINE_TYPE = "demo"
+    ENGINE_PRIORITY = 1000  # Highest priority in demo mode
+
+    @classmethod
+    def is_available(cls) -> bool:
+        return is_demo_mode()
+
+    @classmethod
+    def get_default_config(cls) -> Dict[str, Any]:
+        return {
+            "sample_rate": 44100,
+            "chunk_size": 1024,
+        }
+
+    @classmethod
+    def enumerate_devices(cls) -> List[AudioDeviceInfo]:
+        devices = []
+        for idx, (name, is_loopback, channels, samplerate) in enumerate(_VIRTUAL_DEVICES):
+            devices.append(AudioDeviceInfo(
+                index=idx,
+                name=name,
+                is_input=True,
+                is_loopback=is_loopback,
+                channels=channels,
+                default_samplerate=samplerate,
+            ))
+        logger.debug(f"Demo audio engine: {len(devices)} virtual device(s)")
+        return devices
+
+    @classmethod
+    def create_stream(
+        cls,
+        device_index: int,
+        is_loopback: bool,
+        config: Dict[str, Any],
+    ) -> DemoAudioCaptureStream:
+        if device_index < 0 or device_index >= len(_VIRTUAL_DEVICES):
+            raise ValueError(
+                f"Invalid demo audio device index {device_index}. "
+                f"Available: 0-{len(_VIRTUAL_DEVICES) - 1}"
+            )
+        merged = {**cls.get_default_config(), **config}
+        return DemoAudioCaptureStream(device_index, is_loopback, merged)

server/src/wled_controller/core/audio/factory.py

@@ -0,0 +1,168 @@
+"""Engine registry and factory for audio capture engines."""
+
+from typing import Any, Dict, List, Optional, Type
+
+from wled_controller.core.audio.base import AudioCaptureEngine, AudioCaptureStreamBase
+from wled_controller.config import is_demo_mode
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+
+
+class AudioEngineRegistry:
+    """Registry for available audio capture engines.
+
+    Maintains a registry of all audio engine implementations
+    and provides factory methods for creating capture streams.
+    """
+
+    _engines: Dict[str, Type[AudioCaptureEngine]] = {}
+
+    @classmethod
+    def register(cls, engine_class: Type[AudioCaptureEngine]):
+        """Register an audio capture engine.
+
+        Args:
+            engine_class: Engine class to register (must inherit from AudioCaptureEngine)
+
+        Raises:
+            ValueError: If engine_class is not a subclass of AudioCaptureEngine
+        """
+        if not issubclass(engine_class, AudioCaptureEngine):
+            raise ValueError(f"{engine_class} must be a subclass of AudioCaptureEngine")
+
+        engine_type = engine_class.ENGINE_TYPE
+        if engine_type == "base":
+            raise ValueError("Cannot register base engine type")
+
+        if engine_type in cls._engines:
+            logger.warning(f"Audio engine '{engine_type}' already registered, overwriting")
+
+        cls._engines[engine_type] = engine_class
+        logger.info(f"Registered audio engine: {engine_type}")
+
+    @classmethod
+    def get_engine(cls, engine_type: str) -> Type[AudioCaptureEngine]:
+        """Get engine class by type.
+
+        Args:
+            engine_type: Engine type identifier (e.g., "wasapi", "sounddevice")
+
+        Returns:
+            Engine class
+
+        Raises:
+            ValueError: If engine type not found
+        """
+        if engine_type not in cls._engines:
+            available = ", ".join(cls._engines.keys()) or "none"
+            raise ValueError(
+                f"Unknown audio engine type: '{engine_type}'. Available engines: {available}"
+            )
+        return cls._engines[engine_type]
+
+    @classmethod
+    def get_available_engines(cls) -> List[str]:
+        """Get list of available engine types on this system.
+
+        Returns:
+            List of engine type identifiers that are available
+        """
+        demo = is_demo_mode()
+        available = []
+        for engine_type, engine_class in cls._engines.items():
+            try:
+                # In demo mode, only demo engines are available
+                if demo and engine_type != "demo":
+                    continue
+                if engine_class.is_available():
+                    available.append(engine_type)
+            except Exception as e:
+                logger.error(
+                    f"Error checking availability for audio engine '{engine_type}': {e}"
+                )
+        return available
+
+    @classmethod
+    def get_best_available_engine(cls) -> Optional[str]:
+        """Get the highest-priority available engine type.
+
+        Returns:
+            Engine type string, or None if no engines are available.
+        """
+        demo = is_demo_mode()
+        best_type = None
+        best_priority = -1
+        for engine_type, engine_class in cls._engines.items():
+            try:
+                if demo and engine_type != "demo":
+                    continue
+                if engine_class.is_available() and engine_class.ENGINE_PRIORITY > best_priority:
+                    best_priority = engine_class.ENGINE_PRIORITY
+                    best_type = engine_type
+            except Exception as e:
+                logger.error(
+                    f"Error checking availability for audio engine '{engine_type}': {e}"
+                )
+        return best_type
+
+    @classmethod
+    def get_all_engines(cls) -> Dict[str, Type[AudioCaptureEngine]]:
+        """Get all registered engines (available or not).
+
+        In demo mode, only demo engines are returned.
+
+        Returns:
+            Dictionary mapping engine type to engine class
+        """
+        if is_demo_mode():
+            return {k: v for k, v in cls._engines.items() if k == "demo"}
+        return cls._engines.copy()
+
+    @classmethod
+    def create_stream(
+        cls,
+        engine_type: str,
+        device_index: int,
+        is_loopback: bool,
+        config: Dict[str, Any],
+    ) -> AudioCaptureStreamBase:
+        """Create an AudioCaptureStreamBase for the specified engine and device.
+
+        Args:
+            engine_type: Engine type identifier
+            device_index: Audio device index
+            is_loopback: Whether to capture loopback audio
+            config: Engine-specific configuration
+
+        Returns:
+            Uninitialized AudioCaptureStreamBase instance
+
+        Raises:
+            ValueError: If engine type not found or not available
+        """
+        engine_class = cls.get_engine(engine_type)
+
+        if not engine_class.is_available():
+            raise ValueError(
+                f"Audio engine '{engine_type}' is not available on this system"
+            )
+
+        try:
+            stream = engine_class.create_stream(device_index, is_loopback, config)
+            logger.debug(
+                f"Created audio stream: {engine_type} "
+                f"(device={device_index}, loopback={is_loopback})"
+            )
+            return stream
+        except Exception as e:
+            logger.error(f"Failed to create stream for audio engine '{engine_type}': {e}")
+            raise RuntimeError(
+                f"Failed to create stream for audio engine '{engine_type}': {e}"
+            )
+
+    @classmethod
+    def clear_registry(cls):
+        """Clear all registered engines (for testing)."""
+        cls._engines.clear()
+        logger.debug("Cleared audio engine registry")

server/src/wled_controller/core/audio/sounddevice_engine.py

@@ -0,0 +1,159 @@
+"""Sounddevice audio capture engine (cross-platform, via PortAudio)."""
+
+from typing import Any, Dict, List, Optional
+
+import numpy as np
+
+from wled_controller.core.audio.base import (
+    AudioCaptureEngine,
+    AudioCaptureStreamBase,
+    AudioDeviceInfo,
+)
+from wled_controller.utils import get_logger
+
+logger = get_logger(__name__)
+
+
+class SounddeviceCaptureStream(AudioCaptureStreamBase):
+    """Audio capture stream using sounddevice (PortAudio)."""
+
+    def __init__(self, device_index: int, is_loopback: bool, config: Dict[str, Any]):
+        super().__init__(device_index, is_loopback, config)
+        self._sd_stream = None
+        self._channels = config.get("channels", 2)
+        self._sample_rate = config.get("sample_rate", 44100)
+        self._chunk_size = config.get("chunk_size", 2048)
+
+    @property
+    def channels(self) -> int:
+        return self._channels
+
+    @property
+    def sample_rate(self) -> int:
+        return self._sample_rate
+
+    @property
+    def chunk_size(self) -> int:
+        return self._chunk_size
+
+    def initialize(self) -> None:
+        if self._initialized:
+            return
+
+        try:
+            import sounddevice as sd
+        except ImportError:
+            raise RuntimeError("sounddevice is not installed — sounddevice engine unavailable")
+
+        # Resolve device
+        device_id = self.device_index if self.device_index >= 0 else None
+        if device_id is not None:
+            dev_info = sd.query_devices(device_id)
+            self._channels = min(self._channels, int(dev_info["max_input_channels"]))
+            if self._channels < 1:
+                raise RuntimeError(
+                    f"Device {device_id} ({dev_info['name']}) has no input channels"
+                )
+            self._sample_rate = int(dev_info["default_samplerate"])
+
+        self._sd_stream = sd.InputStream(
+            device=device_id,
+            channels=self._channels,
+            samplerate=self._sample_rate,
+            blocksize=self._chunk_size,
+            dtype="float32",
+        )
+        self._sd_stream.start()
+        self._initialized = True
+        logger.info(
+            f"sounddevice stream opened: device={device_id} loopback={self.is_loopback} "
+            f"channels={self._channels} sr={self._sample_rate}"
+        )
+
+    def cleanup(self) -> None:
+        if self._sd_stream is not None:
+            try:
+                self._sd_stream.stop()
+                self._sd_stream.close()
+            except Exception:
+                pass
+            self._sd_stream = None
+        self._initialized = False
+
+    def read_chunk(self) -> Optional[np.ndarray]:
+        if self._sd_stream is None:
+            return None
+        try:
+            # sd.InputStream.read() returns (data, overflowed)
+            data, _ = self._sd_stream.read(self._chunk_size)
+            # data shape: (chunk_size, channels) — flatten to interleaved 1-D
+            return data.flatten().astype(np.float32)
+        except Exception as e:
+            logger.warning(f"sounddevice read error: {e}")
+            return None
+
+
+class SounddeviceEngine(AudioCaptureEngine):
+    """Sounddevice (PortAudio) audio capture engine — cross-platform."""
+
+    ENGINE_TYPE = "sounddevice"
+    ENGINE_PRIORITY = 5
+
+    @classmethod
+    def is_available(cls) -> bool:
+        try:
+            import sounddevice  # noqa: F401
+            return True
+        except ImportError:
+            return False
+
+    @classmethod
+    def get_default_config(cls) -> Dict[str, Any]:
+        return {
+            "sample_rate": 44100,
+            "chunk_size": 2048,
+        }
+
+    @classmethod
+    def enumerate_devices(cls) -> List[AudioDeviceInfo]:
+        try:
+            import sounddevice as sd
+        except ImportError:
+            return []
+
+        try:
+            devices = sd.query_devices()
+            result = []
+            for i, dev in enumerate(devices):
+                max_in = int(dev["max_input_channels"])
+                if max_in < 1:
+                    continue
+
+                name = dev["name"]
+                # On PulseAudio/PipeWire, monitor sources are loopback-capable
+                is_loopback = "monitor" in name.lower()
+
+                result.append(AudioDeviceInfo(
+                    index=i,
+                    name=name,
+                    is_input=True,
+                    is_loopback=is_loopback,
+                    channels=max_in,
+                    default_samplerate=dev["default_samplerate"],
+                ))
+
+            return result
+
+        except Exception as e:
+            logger.error(f"Failed to enumerate sounddevice devices: {e}", exc_info=True)
+            return []
+
+    @classmethod
+    def create_stream(
+        cls,
+        device_index: int,
+        is_loopback: bool,
+        config: Dict[str, Any],
+    ) -> SounddeviceCaptureStream:
+        merged = {**cls.get_default_config(), **config}
+        return SounddeviceCaptureStream(device_index, is_loopback, merged)