328 lines
10 KiB
Python
328 lines
10 KiB
Python
"""Support for Belkin WeMo lights."""
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import asyncio
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import logging
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from datetime import timedelta
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import async_timeout
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from pywemo import discovery
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import requests
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from homeassistant import util
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from homeassistant.components.light import (
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Light,
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ATTR_BRIGHTNESS,
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ATTR_COLOR_TEMP,
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ATTR_HS_COLOR,
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ATTR_TRANSITION,
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SUPPORT_BRIGHTNESS,
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SUPPORT_COLOR_TEMP,
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SUPPORT_COLOR,
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SUPPORT_TRANSITION,
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)
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from homeassistant.exceptions import PlatformNotReady
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import homeassistant.util.color as color_util
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from . import SUBSCRIPTION_REGISTRY
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MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
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MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
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_LOGGER = logging.getLogger(__name__)
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SUPPORT_WEMO = (
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SUPPORT_BRIGHTNESS | SUPPORT_COLOR_TEMP | SUPPORT_COLOR | SUPPORT_TRANSITION
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)
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up discovered WeMo switches."""
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if discovery_info is not None:
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location = discovery_info["ssdp_description"]
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mac = discovery_info["mac_address"]
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try:
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device = discovery.device_from_description(location, mac)
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except (
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requests.exceptions.ConnectionError,
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requests.exceptions.Timeout,
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) as err:
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_LOGGER.error("Unable to access %s (%s)", location, err)
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raise PlatformNotReady
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if device.model_name == "Dimmer":
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add_entities([WemoDimmer(device)])
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else:
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setup_bridge(device, add_entities)
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def setup_bridge(bridge, add_entities):
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"""Set up a WeMo link."""
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lights = {}
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@util.Throttle(MIN_TIME_BETWEEN_SCANS, MIN_TIME_BETWEEN_FORCED_SCANS)
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def update_lights():
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"""Update the WeMo led objects with latest info from the bridge."""
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bridge.bridge_update()
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new_lights = []
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for light_id, device in bridge.Lights.items():
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if light_id not in lights:
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lights[light_id] = WemoLight(device, update_lights)
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new_lights.append(lights[light_id])
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if new_lights:
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add_entities(new_lights)
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update_lights()
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class WemoLight(Light):
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"""Representation of a WeMo light."""
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def __init__(self, device, update_lights):
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"""Initialize the WeMo light."""
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self.wemo = device
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self._state = None
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self._update_lights = update_lights
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self._available = True
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self._update_lock = None
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self._brightness = None
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self._hs_color = None
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self._color_temp = None
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self._is_on = None
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self._name = self.wemo.name
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self._unique_id = self.wemo.uniqueID
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async def async_added_to_hass(self):
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"""Wemo light added to HASS."""
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# Define inside async context so we know our event loop
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self._update_lock = asyncio.Lock()
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@property
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def unique_id(self):
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"""Return the ID of this light."""
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return self._unique_id
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@property
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def name(self):
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"""Return the name of the light."""
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return self._name
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@property
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def brightness(self):
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"""Return the brightness of this light between 0..255."""
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return self._brightness
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@property
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def hs_color(self):
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"""Return the hs color values of this light."""
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return self._hs_color
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@property
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def color_temp(self):
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"""Return the color temperature of this light in mireds."""
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return self._color_temp
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@property
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def is_on(self):
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"""Return true if device is on."""
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return self._is_on
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@property
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def supported_features(self):
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"""Flag supported features."""
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return SUPPORT_WEMO
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@property
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def available(self):
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"""Return if light is available."""
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return self._available
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def turn_on(self, **kwargs):
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"""Turn the light on."""
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transitiontime = int(kwargs.get(ATTR_TRANSITION, 0))
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hs_color = kwargs.get(ATTR_HS_COLOR)
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if hs_color is not None:
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xy_color = color_util.color_hs_to_xy(*hs_color)
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self.wemo.set_color(xy_color, transition=transitiontime)
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if ATTR_COLOR_TEMP in kwargs:
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colortemp = kwargs[ATTR_COLOR_TEMP]
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self.wemo.set_temperature(mireds=colortemp, transition=transitiontime)
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if ATTR_BRIGHTNESS in kwargs:
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brightness = kwargs.get(ATTR_BRIGHTNESS, self.brightness or 255)
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self.wemo.turn_on(level=brightness, transition=transitiontime)
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else:
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self.wemo.turn_on(transition=transitiontime)
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def turn_off(self, **kwargs):
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"""Turn the light off."""
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transitiontime = int(kwargs.get(ATTR_TRANSITION, 0))
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self.wemo.turn_off(transition=transitiontime)
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def _update(self, force_update=True):
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"""Synchronize state with bridge."""
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self._update_lights(no_throttle=force_update)
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self._state = self.wemo.state
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self._is_on = self._state.get("onoff") != 0
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self._brightness = self._state.get("level", 255)
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self._color_temp = self._state.get("temperature_mireds")
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self._available = True
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xy_color = self._state.get("color_xy")
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if xy_color:
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self._hs_color = color_util.color_xy_to_hs(*xy_color)
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else:
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self._hs_color = None
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async def async_update(self):
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"""Synchronize state with bridge."""
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# If an update is in progress, we don't do anything
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if self._update_lock.locked():
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return
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try:
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with async_timeout.timeout(5):
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await asyncio.shield(self._async_locked_update(True))
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except asyncio.TimeoutError:
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_LOGGER.warning("Lost connection to %s", self.name)
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self._available = False
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async def _async_locked_update(self, force_update):
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"""Try updating within an async lock."""
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async with self._update_lock:
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await self.hass.async_add_executor_job(self._update, force_update)
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class WemoDimmer(Light):
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"""Representation of a WeMo dimmer."""
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def __init__(self, device):
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"""Initialize the WeMo dimmer."""
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self.wemo = device
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self._state = None
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self._available = True
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self._update_lock = None
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self._brightness = None
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self._model_name = self.wemo.model_name
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self._name = self.wemo.name
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self._serialnumber = self.wemo.serialnumber
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def _subscription_callback(self, _device, _type, _params):
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"""Update the state by the Wemo device."""
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_LOGGER.debug("Subscription update for %s", self.name)
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updated = self.wemo.subscription_update(_type, _params)
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self.hass.add_job(self._async_locked_subscription_callback(not updated))
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async def _async_locked_subscription_callback(self, force_update):
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"""Handle an update from a subscription."""
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# If an update is in progress, we don't do anything
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if self._update_lock.locked():
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return
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await self._async_locked_update(force_update)
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self.async_schedule_update_ha_state()
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async def async_added_to_hass(self):
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"""Wemo dimmer added to HASS."""
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# Define inside async context so we know our event loop
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self._update_lock = asyncio.Lock()
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registry = SUBSCRIPTION_REGISTRY
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await self.hass.async_add_executor_job(registry.register, self.wemo)
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registry.on(self.wemo, None, self._subscription_callback)
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async def async_update(self):
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"""Update WeMo state.
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Wemo has an aggressive retry logic that sometimes can take over a
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minute to return. If we don't get a state after 5 seconds, assume the
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Wemo dimmer is unreachable. If update goes through, it will be made
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available again.
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"""
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# If an update is in progress, we don't do anything
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if self._update_lock.locked():
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return
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try:
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with async_timeout.timeout(5):
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await asyncio.shield(self._async_locked_update(True))
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except asyncio.TimeoutError:
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_LOGGER.warning("Lost connection to %s", self.name)
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self._available = False
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self.wemo.reconnect_with_device()
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async def _async_locked_update(self, force_update):
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"""Try updating within an async lock."""
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async with self._update_lock:
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await self.hass.async_add_executor_job(self._update, force_update)
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@property
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def unique_id(self):
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"""Return the ID of this WeMo dimmer."""
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return self._serialnumber
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@property
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def name(self):
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"""Return the name of the dimmer if any."""
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return self._name
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@property
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def supported_features(self):
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"""Flag supported features."""
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return SUPPORT_BRIGHTNESS
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@property
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def brightness(self):
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"""Return the brightness of this light between 1 and 100."""
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return self._brightness
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@property
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def is_on(self):
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"""Return true if dimmer is on. Standby is on."""
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return self._state
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def _update(self, force_update=True):
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"""Update the device state."""
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try:
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self._state = self.wemo.get_state(force_update)
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wemobrightness = int(self.wemo.get_brightness(force_update))
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self._brightness = int((wemobrightness * 255) / 100)
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if not self._available:
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_LOGGER.info("Reconnected to %s", self.name)
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self._available = True
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except AttributeError as err:
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_LOGGER.warning("Could not update status for %s (%s)", self.name, err)
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self._available = False
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def turn_on(self, **kwargs):
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"""Turn the dimmer on."""
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self.wemo.on()
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# Wemo dimmer switches use a range of [0, 100] to control
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# brightness. Level 255 might mean to set it to previous value
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if ATTR_BRIGHTNESS in kwargs:
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brightness = kwargs[ATTR_BRIGHTNESS]
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brightness = int((brightness / 255) * 100)
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else:
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brightness = 255
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self.wemo.set_brightness(brightness)
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def turn_off(self, **kwargs):
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"""Turn the dimmer off."""
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self.wemo.off()
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@property
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def available(self):
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"""Return if dimmer is available."""
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return self._available
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