mirror of https://github.com/home-assistant/core
155 lines
5.0 KiB
Python
155 lines
5.0 KiB
Python
"""Kuler Sky light platform."""
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from __future__ import annotations
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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 pykulersky
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from homeassistant.components.light import (
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ATTR_BRIGHTNESS,
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ATTR_RGBW_COLOR,
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ColorMode,
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LightEntity,
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)
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import EVENT_HOMEASSISTANT_STOP
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.event import async_track_time_interval
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from .const import DATA_ADDRESSES, DATA_DISCOVERY_SUBSCRIPTION, DOMAIN
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_LOGGER = logging.getLogger(__name__)
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DISCOVERY_INTERVAL = timedelta(seconds=60)
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async def async_setup_entry(
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hass: HomeAssistant,
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config_entry: ConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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"""Set up Kuler sky light devices."""
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async def discover(*args):
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"""Attempt to discover new lights."""
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lights = await pykulersky.discover()
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# Filter out already discovered lights
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new_lights = [
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light
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for light in lights
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if light.address not in hass.data[DOMAIN][DATA_ADDRESSES]
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]
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new_entities = []
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for light in new_lights:
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hass.data[DOMAIN][DATA_ADDRESSES].add(light.address)
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new_entities.append(KulerskyLight(light))
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async_add_entities(new_entities, update_before_add=True)
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# Start initial discovery
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hass.async_create_task(discover())
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# Perform recurring discovery of new devices
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hass.data[DOMAIN][DATA_DISCOVERY_SUBSCRIPTION] = async_track_time_interval(
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hass, discover, DISCOVERY_INTERVAL
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)
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class KulerskyLight(LightEntity):
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"""Representation of a Kuler Sky Light."""
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_attr_has_entity_name = True
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_attr_name = None
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_attr_available = False
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_attr_supported_color_modes = {ColorMode.RGBW}
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_attr_color_mode = ColorMode.RGBW
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def __init__(self, light: pykulersky.Light) -> None:
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"""Initialize a Kuler Sky light."""
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self._light = light
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self._attr_unique_id = light.address
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self._attr_device_info = DeviceInfo(
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identifiers={(DOMAIN, light.address)},
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manufacturer="Brightech",
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name=light.name,
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)
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async def async_added_to_hass(self) -> None:
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"""Run when entity about to be added to hass."""
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self.async_on_remove(
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self.hass.bus.async_listen_once(
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EVENT_HOMEASSISTANT_STOP, self.async_will_remove_from_hass
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)
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)
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async def async_will_remove_from_hass(self, *args) -> None:
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"""Run when entity will be removed from hass."""
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try:
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await self._light.disconnect()
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except pykulersky.PykulerskyException:
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_LOGGER.debug(
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"Exception disconnected from %s", self._light.address, exc_info=True
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)
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@property
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def is_on(self):
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"""Return true if light is on."""
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return self.brightness > 0
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async def async_turn_on(self, **kwargs: Any) -> None:
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"""Instruct the light to turn on."""
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default_rgbw = (255,) * 4 if self.rgbw_color is None else self.rgbw_color
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rgbw = kwargs.get(ATTR_RGBW_COLOR, default_rgbw)
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default_brightness = 0 if self.brightness is None else self.brightness
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brightness = kwargs.get(ATTR_BRIGHTNESS, default_brightness)
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if brightness == 0 and not kwargs:
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# If the light would be off, and no additional parameters were
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# passed, just turn the light on full brightness.
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brightness = 255
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rgbw = (255,) * 4
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rgbw_scaled = [round(x * brightness / 255) for x in rgbw]
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await self._light.set_color(*rgbw_scaled)
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async def async_turn_off(self, **kwargs: Any) -> None:
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"""Instruct the light to turn off."""
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await self._light.set_color(0, 0, 0, 0)
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async def async_update(self) -> None:
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"""Fetch new state data for this light."""
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try:
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if not self._attr_available:
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await self._light.connect()
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rgbw = await self._light.get_color()
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except pykulersky.PykulerskyException as exc:
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if self._attr_available:
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_LOGGER.warning("Unable to connect to %s: %s", self._light.address, exc)
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self._attr_available = False
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return
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if self._attr_available is False:
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_LOGGER.warning("Reconnected to %s", self._light.address)
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self._attr_available = True
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brightness = max(rgbw)
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if not brightness:
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self._attr_rgbw_color = (0, 0, 0, 0)
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else:
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rgbw_normalized = [round(x * 255 / brightness) for x in rgbw]
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self._attr_rgbw_color = (
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rgbw_normalized[0],
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rgbw_normalized[1],
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rgbw_normalized[2],
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rgbw_normalized[3],
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)
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self._attr_brightness = brightness
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