# Web App Launcher — Implementation Plan Prompt

## Project Overview

Build a **self-hosted web application launcher / dashboard** for a TrueNAS server environment. The app serves as a centralized portal to organize, discover, and navigate to self-hosted services (Plex, Nextcloud, Gitea, Home Assistant, etc.) via customizable boards with live health indicators.

**Repository:** `https://git.dolgolyov-family.by/alexei.dolgolyov/web-app-launcher`
**Git user:** `alexei.dolgolyov` / `dolgolyov.alexei@gmail.com` (Gitea instance)

---

## Tech Stack

### Framework (Full-Stack)
- **SvelteKit** — all-in-one framework: SSR, routing, API routes (`+server.ts`), form actions — single process, no separate backend needed
- **Svelte 5** (runes mode) — `$state`, `$derived`, `$effect` for reactive state; compiler-based, no virtual DOM, minimal runtime
- **TypeScript** — strict mode throughout

### UI & Styling
- **Tailwind CSS v4** — utility-first styling with smooth animation support
- **shadcn-svelte** (Bits UI primitives) — accessible, unstyled component library; each component is a separate file
- **Svelte built-in transitions** — `transition:`, `animate:`, `in:/out:` directives for page transitions, expand/collapse, hover effects
- **svelte/motion** — `tweened` and `spring` stores for ambient background animations

### Data & State
- **SvelteKit load functions** — server-side data loading with automatic invalidation
- **Svelte runes** (`$state`, `$derived`) — client-side reactive state (theme, sidebar, UI)
- **Superforms + Zod** — type-safe form handling with progressive enhancement and server-side validation
- **Prisma ORM** — type-safe database access, migrations, seeding
- **SQLite** — zero-config, file-based, perfect for single-server deployment (easy Docker volume mount, simple backups). Migrate to PostgreSQL later if needed.

### Auth
- **openid-client** — Authentik OIDC/OAuth2 integration
- **bcrypt + JWT** — local auth with refresh token rotation via HTTP-only cookies
- **SvelteKit hooks** (`handle`) — auth middleware, session management

### Icons
- **Lucide Svelte** — 1500+ clean SVG icons for UI chrome
- **Simple Icons** (via `simple-icons` npm package) — 3000+ brand/service icons (Plex, Nextcloud, Docker, Grafana, etc.) — perfect for self-hosted app logos
- **Dashboard Icons** (CDN fallback) — community-maintained self-hosted app icon set
- **Custom upload** — allow users to upload SVG/PNG icons as a fallback
- **No emojis** — strictly SVG/image icons only

### Background Jobs
- **node-cron** — scheduled healthcheck pings (runs in SvelteKit server process)

### DevOps
- **Docker** — multi-stage build (SvelteKit build → Node adapter → lightweight runtime)
- **docker-compose.yml** — single-command deployment with volume mounts for SQLite + uploads
- **Gitea Actions** — CI/CD workflows (lint, type-check, test, Docker image push to Gitea Container Registry)

---

## Functional Requirements

### 1. Authentication & Authorization

#### Auth Modes (Admin-Configurable)
The system supports three auth modes, selectable by admin in settings:
- **OAuth only** — all users authenticate via Authentik (OIDC/OAuth2)
- **Local only** — email/password login with optional registration
- **Both** — user chooses OAuth or local login on the login page
- **Guest mode** — unauthenticated users see boards marked as `guest-accessible`

#### User Management
- Admin can create/edit/delete users manually
- Self-registration is **disabled by default**; admin toggles it on/off
- OAuth auto-provisions users on first login (maps Authentik groups to local groups)
- Users have: `id`, `email`, `displayName`, `avatarUrl`, `authProvider`, `role`, `groupIds[]`

#### Groups & Access Control
- **Default groups:** `admin`, `user`
- Admin can create custom groups
- Permissions are hierarchical: **User-level overrides > Group-level > Default**
- Permission model per entity (board, section, app):
  - `view` — can see the entity
  - `edit` — can modify the entity
  - `admin` — full control (delete, manage access)
- Guest access is a separate boolean flag per board

#### Session Management
- JWT access tokens stored in HTTP-only cookies (managed by SvelteKit hooks)
- Refresh token rotation (7-day expiry)
- Server-side session validation in `hooks.server.ts`
- Logout invalidates refresh token

### 2. Apps (Service Registry)

Each app represents a self-hosted service:
- **url** (required) — base URL of the service
- **name** (required) — display name
- **icon** — one of: Simple Icons slug, Lucide icon name, Dashboard Icons ID, or uploaded image path
- **description** (optional) — short text shown on hover/expand
- **category/tags** (optional) — for filtering/search
- **healthcheck** configuration:
  - `enabled` (default: true)
  - `interval` (default: 60s, min: 10s, max: 3600s)
  - `method` — HTTP HEAD/GET to the URL (or custom endpoint)
  - `expectedStatus` — default 200, configurable (e.g., 401 is "alive" for auth-protected services)
  - `timeout` — max wait before marking as down (default: 5s)
- **Status**: `online | offline | degraded | unknown` — derived from healthcheck results
- Backend runs healthchecks on a per-app schedule; results are cached and pushed to frontend via polling (SvelteKit invalidation) or SSE

### 3. Boards

Boards are the primary organizational unit — each board is a full-page layout of sections and widgets.

#### Board Properties
- `name`, `icon`, `description`
- `accessLevel` — per-user, per-group, guest-accessible (boolean)
- `isDefault` — one board can be marked as the landing page
- `layout` — grid-based responsive layout
- `backgroundConfig` — ambient background settings (see Appearance)

#### Sections (Groups)
- Collapsible/expandable containers within a board
- Properties: `title`, `icon`, `isExpanded` (default state), `order`
- Contain an ordered list of widgets
- Smooth expand/collapse animation (Svelte `slide` transition)

#### Widgets
Widgets are the atomic content units inside sections.

**App Widget (MVP):**
- Displays app icon, name, status indicator (colored dot/ring), optional description
- Click opens the app URL in a new tab
- Hover shows description tooltip + last healthcheck time
- Visual states: online (green pulse), offline (red), degraded (yellow), unknown (gray)

**Future widget types (post-MVP, design the schema to support them):**
- **Bookmark widget** — simple URL + label (no healthcheck)
- **Note widget** — rich text or markdown note
- **Embed widget** — iframe embed of a service
- **Status widget** — aggregated status of multiple apps

### 4. Search & Navigation
- Global search bar (Cmd/Ctrl+K) — searches across all accessible apps and boards
- Keyboard navigation support
- Sidebar with board list (collapsible)
- Breadcrumb navigation within nested views

### 5. Admin Panel
- User management (CRUD, group assignment)
- Group management (CRUD, permission templates)
- App management (CRUD, healthcheck config, bulk import/export)
- Board management (CRUD, access control)
- System settings:
  - Auth mode selection
  - Registration toggle
  - OAuth provider configuration (client ID, secret, discovery URL)
  - Default theme / primary color
  - Healthcheck global defaults

---

## Non-Functional Requirements

### Appearance & UX
- **Modern, clean design** — inspired by Homarr / Heimdall / Organizr but with smoother polish
- **Ambient animated backgrounds** — subtle mesh gradient, particle field, or aurora effect (configurable, can be disabled); implemented with Svelte `tweened`/`spring` + CSS/Canvas
- **Customizable primary color** — HSL-based theme system; admin sets default, users can override
- **Dark / Light / System theme** — with smooth CSS transition
- **Smooth animations everywhere** (using Svelte built-in transitions):
  - Page transitions (`in:fade`, `out:fly`)
  - Section expand/collapse (`transition:slide`)
  - Card hover effects (subtle scale + shadow lift via CSS + Svelte `spring`)
  - Status indicator pulse (CSS `@keyframes`)
  - Skeleton loading states
- **Responsive** — works on desktop, tablet, and mobile
- **No emojis as icons** — use SVG icon libraries exclusively

### File Structure (Modularity)

SvelteKit route-based structure with one component per file:
```
src/
  routes/
    +layout.svelte             # Root layout (sidebar, header, ambient bg)
    +layout.server.ts          # Root auth check, load user session
    +page.svelte               # Dashboard / default board redirect
    login/
      +page.svelte             # Login page
      +page.server.ts          # Login form action
    register/
      +page.svelte             # Registration page (if enabled)
      +page.server.ts          # Register form action
    auth/
      oauth/
        authorize/+server.ts   # Redirect to Authentik
        callback/+server.ts    # Handle OAuth callback
      refresh/+server.ts       # Token refresh
    boards/
      +page.svelte             # Board list
      +page.server.ts          # Load boards (filtered by permissions)
      [boardId]/
        +page.svelte           # Board view
        +page.server.ts        # Load board with sections/widgets
        edit/
          +page.svelte         # Board editor
          +page.server.ts      # Board update actions
    apps/
      +page.svelte             # App registry list
      +page.server.ts          # Load apps
      [appId]/
        +server.ts             # App CRUD API
        status/+server.ts      # Healthcheck status API
    admin/
      +layout.svelte           # Admin layout (admin-only guard)
      +layout.server.ts        # Admin auth check
      users/
        +page.svelte           # User management
        +page.server.ts        # User CRUD actions
      groups/
        +page.svelte           # Group management
        +page.server.ts        # Group CRUD actions
      settings/
        +page.svelte           # System settings
        +page.server.ts        # Settings update actions
    api/
      apps/+server.ts          # App CRUD REST endpoints
      apps/[id]/+server.ts     # Single app operations
      apps/[id]/status/+server.ts  # Healthcheck status
      boards/+server.ts        # Board CRUD
      boards/[id]/+server.ts   # Single board operations
      boards/[id]/sections/+server.ts       # Section CRUD
      boards/[id]/sections/[sid]/+server.ts # Single section
      boards/[id]/sections/[sid]/widgets/+server.ts  # Widget CRUD
      users/+server.ts         # User management (admin)
      groups/+server.ts        # Group management (admin)
      admin/settings/+server.ts # System settings (admin)
      search/+server.ts        # Global search
      health/+server.ts        # App healthcheck endpoint
  lib/
    components/
      ui/                      # shadcn-svelte primitives (Button, Dialog, etc.)
      layout/
        Sidebar.svelte
        Header.svelte
        MainLayout.svelte
        ThemeToggle.svelte
      board/
        Board.svelte
        BoardHeader.svelte
        BoardCard.svelte
      section/
        Section.svelte
        SectionHeader.svelte
        SectionCollapsible.svelte
      widget/
        AppWidget.svelte
        AppWidgetStatus.svelte
        WidgetContainer.svelte
        WidgetGrid.svelte
      app/
        AppForm.svelte
        AppIconPicker.svelte
        AppHealthBadge.svelte
        AppCard.svelte
      auth/
        LoginForm.svelte
        OAuthButton.svelte
        RegisterForm.svelte
      admin/
        UserTable.svelte
        GroupTable.svelte
        SettingsForm.svelte
        PermissionEditor.svelte
      search/
        SearchDialog.svelte
        SearchResult.svelte
        SearchTrigger.svelte
      background/
        AmbientBackground.svelte
        MeshGradient.svelte
        ParticleField.svelte
        AuroraEffect.svelte
    server/
      services/
        authService.ts
        appService.ts
        boardService.ts
        healthcheckService.ts
        userService.ts
        groupService.ts
        permissionService.ts
      middleware/
        authenticate.ts
        authorize.ts
        guestAccess.ts
      jobs/
        healthcheckScheduler.ts
      utils/
        jwt.ts
        password.ts
        iconResolver.ts
    stores/
      theme.svelte.ts          # Svelte 5 rune-based store
      ui.svelte.ts
      search.svelte.ts
    utils/
      constants.ts
      validators.ts
      helpers.ts
    types/
      auth.ts
      app.ts
      board.ts
      widget.ts
      user.ts
      group.ts
      permission.ts
  hooks.server.ts              # Auth middleware, session injection
  hooks.client.ts              # Client-side error handling
  app.css                      # Tailwind base + theme variables
  app.d.ts                     # SvelteKit type augmentation (locals, session)
prisma/
  schema.prisma
  migrations/
  seed.ts
static/
  uploads/                     # User-uploaded icons
```

### Database Schema (Prisma)

Key models:
- `User` — id, email, password (nullable for OAuth), displayName, avatarUrl, authProvider, role
- `Group` — id, name, description, isDefault
- `UserGroup` — userId, groupId (many-to-many)
- `App` — id, name, url, icon, iconType, description, category, healthcheckEnabled, healthcheckInterval, healthcheckMethod, healthcheckExpectedStatus, healthcheckTimeout, createdById
- `AppStatus` — id, appId, status, responseTime, checkedAt (latest N records for history)
- `Board` — id, name, icon, description, isDefault, isGuestAccessible, backgroundConfig (JSON), createdById
- `Section` — id, boardId, title, icon, order, isExpandedByDefault
- `Widget` — id, sectionId, type, order, config (JSON — for AppWidget: `{ appId }`)
- `Permission` — id, entityType (board/app), entityId, targetType (user/group), targetId, level (view/edit/admin)
- `SystemSettings` — singleton row: authMode, registrationEnabled, oauthConfig (encrypted JSON), defaultTheme, defaultPrimaryColor, healthcheckDefaults (JSON)

### API Design

RESTful JSON API via SvelteKit `+server.ts` routes with consistent envelope:
```json
{
  "success": true,
  "data": { ... },
  "error": null,
  "meta": { "total": 100, "page": 1, "limit": 20 }
}
```

Key endpoints (all under `src/routes/api/`):
- `POST /api/auth/login` — local login
- `GET /api/auth/oauth/authorize` — redirect to Authentik
- `GET /api/auth/oauth/callback` — handle OAuth callback
- `POST /api/auth/register` — self-registration (if enabled)
- `POST /api/auth/refresh` — token refresh
- `GET/POST/PATCH/DELETE /api/apps` — app CRUD
- `GET /api/apps/:id/status` — latest healthcheck status
- `GET/POST/PATCH/DELETE /api/boards` — board CRUD (filtered by user permissions)
- `GET/POST/PATCH/DELETE /api/boards/:id/sections` — section CRUD
- `GET/POST/PATCH/DELETE /api/boards/:id/sections/:sid/widgets` — widget CRUD
- `GET/POST/PATCH/DELETE /api/users` — user management (admin)
- `GET/POST/PATCH/DELETE /api/groups` — group management (admin)
- `GET/PATCH /api/admin/settings` — system settings (admin)
- `GET /api/search?q=...` — global search
- `GET /api/health` — app health endpoint for Docker healthcheck

### Docker Deployment

```dockerfile
# Multi-stage: build SvelteKit with Node adapter → slim runtime
FROM node:22-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npx prisma generate
RUN npm run build

FROM node:22-alpine AS runtime
WORKDIR /app
COPY --from=builder /app/build ./build
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./
COPY --from=builder /app/prisma ./prisma
EXPOSE 3000
HEALTHCHECK CMD wget -q --spider http://localhost:3000/api/health || exit 1
ENTRYPOINT ["sh", "-c", "npx prisma migrate deploy && node build"]
```

```yaml
# docker-compose.yml
services:
  web-app-launcher:
    build: .
    ports:
      - "3000:3000"
    volumes:
      - ./data:/app/data          # SQLite DB
      - ./uploads:/app/uploads    # Custom icons
    environment:
      - DATABASE_URL=file:/app/data/launcher.db
      - JWT_SECRET=changeme
      - OAUTH_CLIENT_ID=
      - OAUTH_CLIENT_SECRET=
      - OAUTH_DISCOVERY_URL=
      - ORIGIN=http://localhost:3000
    restart: unless-stopped
```

### CI/CD (Gitea Actions)

`.gitea/workflows/ci.yml`:
- **On push to any branch:** lint (`eslint`), type-check (`svelte-check`), unit tests (`vitest`)
- **On push to main:** build Docker image, push to Gitea Container Registry (`git.dolgolyov-family.by/alexei.dolgolyov/web-app-launcher`)
- **On tag (vX.Y.Z):** build + push tagged image, create Gitea release

---

## Additional Features

### Cool Ideas (Included in Phases)
1. **Drag-and-drop board editor** — reorder sections and widgets with `svelte-dnd-action` (Svelte-native, accessible, performant)
2. **Auto-discovery** — scan a Docker socket or Traefik API to auto-register running containers as apps
3. **Favicon auto-fetch** — if no icon is selected, attempt to fetch the favicon from the app's URL
4. **Ping history sparkline** — tiny inline SVG chart showing uptime over last 24h per app
5. **Import/Export** — JSON export of entire config for backup/migration
6. **PWA support** — installable on mobile home screen with offline shell (SvelteKit service worker support)
7. **Multi-tab sync** — broadcast theme/board changes across tabs via BroadcastChannel API
8. **Quick-add bookmarklet** — browser bookmarklet that adds current page as an app via the API
9. **Keyboard-first navigation** — Vim-style `j/k` to move between apps, `Enter` to open

### MVP Scope (Phase 1)
To avoid scope creep, the MVP should include:
- Local auth + guest mode (OAuth in Phase 2)
- App CRUD + healthcheck with status display
- Single default board with sections and app widgets
- Admin panel (user/app/board management)
- Dark theme + ambient background
- Docker deployment
- Basic Gitea CI

### Phase 2
- OAuth/Authentik integration
- Multi-board support with per-board access control
- Custom groups + granular permissions
- Drag-and-drop reordering
- Global search (Cmd+K)
- Additional widget types

### Phase 3
- ~~Auto-discovery (Docker/Traefik)~~ **DONE** — Phase 5 implementation: discoveryService.ts, /api/admin/discover endpoints, DiscoveryPanel.svelte, SettingsForm discovery config, i18n EN/RU
- Import/Export
- PWA
- Ping history sparklines
- User theme overrides
- Quick-add bookmarklet
- Multi-tab sync

---

## Constraints & Preferences
- **Immutable data patterns** — never mutate objects in place; return new copies
- **Small files** — one component/service per file, 200-400 lines typical, 800 max
- **Comprehensive error handling** — every API call, every user action
- **Input validation** — Zod schemas shared between client (Superforms) and server
- **No hardcoded secrets** — all sensitive config via environment variables
- **Conventional commits** — `feat:`, `fix:`, `refactor:`, etc.
- **80%+ test coverage target** — unit tests with Vitest, integration tests for API routes, E2E with Playwright
- **Progressive enhancement** — SvelteKit form actions work without JavaScript where possible