feat: initial release — LedGrab Home Assistant integration
HACS-compatible custom component split out from the main LedGrab repo. Creates light, switch, sensor, number, and select entities for each configured LedGrab device.
This commit is contained in:
@@ -0,0 +1,426 @@
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"""Data update coordinator for LED Screen Controller."""
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from __future__ import annotations
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import asyncio
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from datetime import timedelta
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import logging
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from typing import Any
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import aiohttp
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
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from .const import (
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DOMAIN,
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DEFAULT_TIMEOUT,
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)
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_LOGGER = logging.getLogger(__name__)
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class LedGrabCoordinator(DataUpdateCoordinator):
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"""Class to manage fetching LED Screen Controller data."""
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def __init__(
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self,
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hass: HomeAssistant,
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session: aiohttp.ClientSession,
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server_url: str,
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api_key: str,
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update_interval: timedelta,
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) -> None:
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"""Initialize the coordinator."""
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self.server_url = server_url
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self.session = session
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self.api_key = api_key
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self.server_version = "unknown"
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self._auth_headers = {"Authorization": f"Bearer {api_key}"} if api_key else {}
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self._timeout = aiohttp.ClientTimeout(total=DEFAULT_TIMEOUT)
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super().__init__(
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hass,
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_LOGGER,
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name=DOMAIN,
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update_interval=update_interval,
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)
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async def _async_update_data(self) -> dict[str, Any]:
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"""Fetch data from API."""
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try:
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async with asyncio.timeout(DEFAULT_TIMEOUT * 3):
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if self.server_version == "unknown":
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await self._fetch_server_version()
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targets_list = await self._fetch_targets()
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# Fetch state and metrics for all targets in parallel
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targets_data: dict[str, dict[str, Any]] = {}
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async def fetch_target_data(target: dict) -> tuple[str, dict]:
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target_id = target["id"]
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try:
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state, metrics = await asyncio.gather(
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self._fetch_target_state(target_id),
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self._fetch_target_metrics(target_id),
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)
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except Exception as err:
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_LOGGER.warning(
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"Failed to fetch data for target %s: %s",
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target_id,
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err,
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)
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state = None
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metrics = None
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return target_id, {
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"info": target,
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"state": state,
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"metrics": metrics,
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}
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results = await asyncio.gather(
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*(fetch_target_data(t) for t in targets_list),
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return_exceptions=True,
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)
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for r in results:
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if isinstance(r, Exception):
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_LOGGER.warning("Target fetch failed: %s", r)
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continue
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target_id, data = r
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targets_data[target_id] = data
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# Fetch devices, CSS sources, value sources, and scene presets in parallel
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devices_data, css_sources, value_sources, scene_presets = await asyncio.gather(
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self._fetch_devices(),
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self._fetch_css_sources(),
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self._fetch_value_sources(),
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self._fetch_scene_presets(),
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)
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return {
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"targets": targets_data,
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"devices": devices_data,
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"css_sources": css_sources,
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"value_sources": value_sources,
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"scene_presets": scene_presets,
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"server_version": self.server_version,
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}
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except asyncio.TimeoutError as err:
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raise UpdateFailed(f"Timeout fetching data: {err}") from err
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except aiohttp.ClientError as err:
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raise UpdateFailed(f"Error communicating with API: {err}") from err
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async def _fetch_server_version(self) -> None:
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"""Fetch server version from health endpoint."""
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try:
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async with self.session.get(
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f"{self.server_url}/health",
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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data = await resp.json()
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self.server_version = data.get("version", "unknown")
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except Exception as err:
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_LOGGER.warning("Failed to fetch server version: %s", err)
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self.server_version = "unknown"
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async def _fetch_targets(self) -> list[dict[str, Any]]:
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"""Fetch all output targets."""
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async with self.session.get(
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f"{self.server_url}/api/v1/output-targets",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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data = await resp.json()
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return data.get("targets", [])
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async def _fetch_target_state(self, target_id: str) -> dict[str, Any]:
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"""Fetch target processing state."""
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async with self.session.get(
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f"{self.server_url}/api/v1/output-targets/{target_id}/state",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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return await resp.json()
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async def _fetch_target_metrics(self, target_id: str) -> dict[str, Any]:
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"""Fetch target metrics."""
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async with self.session.get(
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f"{self.server_url}/api/v1/output-targets/{target_id}/metrics",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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return await resp.json()
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async def _fetch_devices(self) -> dict[str, dict[str, Any]]:
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"""Fetch all devices with capabilities and brightness."""
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try:
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async with self.session.get(
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f"{self.server_url}/api/v1/devices",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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data = await resp.json()
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devices = data.get("devices", [])
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except Exception as err:
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_LOGGER.warning("Failed to fetch devices: %s", err)
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return {}
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# Fetch brightness for all capable devices in parallel
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async def fetch_device_entry(device: dict) -> tuple[str, dict[str, Any]]:
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device_id = device["id"]
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entry: dict[str, Any] = {"info": device, "brightness": None}
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if "brightness_control" in (device.get("capabilities") or []):
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try:
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async with self.session.get(
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f"{self.server_url}/api/v1/devices/{device_id}/brightness",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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if resp.status == 200:
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bri_data = await resp.json()
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entry["brightness"] = bri_data.get("brightness")
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except Exception as err:
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_LOGGER.warning(
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"Failed to fetch brightness for device %s: %s",
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device_id,
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err,
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)
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return device_id, entry
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results = await asyncio.gather(
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*(fetch_device_entry(d) for d in devices),
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return_exceptions=True,
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)
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devices_data: dict[str, dict[str, Any]] = {}
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for r in results:
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if isinstance(r, Exception):
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_LOGGER.warning("Device fetch failed: %s", r)
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continue
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device_id, entry = r
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devices_data[device_id] = entry
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return devices_data
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async def set_brightness(self, device_id: str, brightness: int) -> None:
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"""Set brightness for a device."""
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async with self.session.put(
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f"{self.server_url}/api/v1/devices/{device_id}/brightness",
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headers={**self._auth_headers, "Content-Type": "application/json"},
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json={"brightness": brightness},
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timeout=self._timeout,
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) as resp:
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if resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to set brightness for device %s: %s %s",
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device_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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await self.async_request_refresh()
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async def set_color(self, device_id: str, color: list[int] | None) -> None:
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"""Set or clear the static color for a device."""
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async with self.session.put(
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f"{self.server_url}/api/v1/devices/{device_id}/color",
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headers={**self._auth_headers, "Content-Type": "application/json"},
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json={"color": color},
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timeout=self._timeout,
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) as resp:
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if resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to set color for device %s: %s %s",
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device_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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await self.async_request_refresh()
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async def _fetch_css_sources(self) -> list[dict[str, Any]]:
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"""Fetch all color strip sources."""
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try:
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async with self.session.get(
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f"{self.server_url}/api/v1/color-strip-sources",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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data = await resp.json()
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return data.get("sources", [])
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except Exception as err:
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_LOGGER.warning("Failed to fetch CSS sources: %s", err)
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return []
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async def _fetch_value_sources(self) -> list[dict[str, Any]]:
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"""Fetch all value sources."""
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try:
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async with self.session.get(
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f"{self.server_url}/api/v1/value-sources",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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data = await resp.json()
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return data.get("sources", [])
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except Exception as err:
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_LOGGER.warning("Failed to fetch value sources: %s", err)
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return []
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async def _fetch_scene_presets(self) -> list[dict[str, Any]]:
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"""Fetch all scene presets."""
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try:
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async with self.session.get(
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f"{self.server_url}/api/v1/scene-presets",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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resp.raise_for_status()
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data = await resp.json()
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return data.get("presets", [])
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except Exception as err:
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_LOGGER.warning("Failed to fetch scene presets: %s", err)
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return []
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async def push_colors(self, source_id: str, colors: list[list[int]]) -> None:
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"""Push flat color array to an api_input CSS source."""
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async with self.session.post(
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f"{self.server_url}/api/v1/color-strip-sources/{source_id}/colors",
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headers={**self._auth_headers, "Content-Type": "application/json"},
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json={"colors": colors},
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timeout=self._timeout,
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) as resp:
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if resp.status not in (200, 204):
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body = await resp.text()
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_LOGGER.error(
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"Failed to push colors to source %s: %s %s",
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source_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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async def push_segments(self, source_id: str, segments: list[dict]) -> None:
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"""Push segment data to an api_input CSS source."""
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async with self.session.post(
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f"{self.server_url}/api/v1/color-strip-sources/{source_id}/colors",
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headers={**self._auth_headers, "Content-Type": "application/json"},
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json={"segments": segments},
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timeout=self._timeout,
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) as resp:
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if resp.status not in (200, 204):
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body = await resp.text()
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_LOGGER.error(
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"Failed to push segments to source %s: %s %s",
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source_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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async def activate_scene(self, preset_id: str) -> None:
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"""Activate a scene preset."""
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async with self.session.post(
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f"{self.server_url}/api/v1/scene-presets/{preset_id}/activate",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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if resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to activate scene %s: %s %s",
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preset_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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await self.async_request_refresh()
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async def update_source(self, source_id: str, **kwargs: Any) -> None:
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"""Update a color strip source's fields."""
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async with self.session.put(
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f"{self.server_url}/api/v1/color-strip-sources/{source_id}",
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headers={**self._auth_headers, "Content-Type": "application/json"},
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json=kwargs,
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timeout=self._timeout,
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) as resp:
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if resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to update source %s: %s %s",
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source_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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async def update_target(self, target_id: str, **kwargs: Any) -> None:
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"""Update an output target's fields."""
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async with self.session.put(
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f"{self.server_url}/api/v1/output-targets/{target_id}",
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headers={**self._auth_headers, "Content-Type": "application/json"},
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json=kwargs,
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timeout=self._timeout,
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) as resp:
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if resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to update target %s: %s %s",
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target_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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await self.async_request_refresh()
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async def start_processing(self, target_id: str) -> None:
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"""Start processing for a target."""
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async with self.session.post(
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f"{self.server_url}/api/v1/output-targets/{target_id}/start",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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if resp.status == 409:
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_LOGGER.debug("Target %s already processing", target_id)
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elif resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to start target %s: %s %s",
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target_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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await self.async_request_refresh()
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async def stop_processing(self, target_id: str) -> None:
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"""Stop processing for a target."""
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async with self.session.post(
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f"{self.server_url}/api/v1/output-targets/{target_id}/stop",
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headers=self._auth_headers,
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timeout=self._timeout,
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) as resp:
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if resp.status == 409:
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_LOGGER.debug("Target %s already stopped", target_id)
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elif resp.status != 200:
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body = await resp.text()
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_LOGGER.error(
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"Failed to stop target %s: %s %s",
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target_id,
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resp.status,
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body,
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)
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resp.raise_for_status()
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await self.async_request_refresh()
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