core/homeassistant/components/lutron_caseta/light.py

86 lines
2.6 KiB
Python

"""Support for Lutron Caseta lights."""
from datetime import timedelta
from homeassistant.components.light import (
ATTR_BRIGHTNESS,
ATTR_TRANSITION,
DOMAIN,
ColorMode,
LightEntity,
LightEntityFeature,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from . import LutronCasetaDeviceUpdatableEntity
from .const import DOMAIN as CASETA_DOMAIN
from .models import LutronCasetaData
def to_lutron_level(level):
"""Convert the given Home Assistant light level (0-255) to Lutron (0-100)."""
return int(round((level * 100) / 255))
def to_hass_level(level):
"""Convert the given Lutron (0-100) light level to Home Assistant (0-255)."""
return int((level * 255) // 100)
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up the Lutron Caseta light platform.
Adds dimmers from the Caseta bridge associated with the config_entry as
light entities.
"""
data: LutronCasetaData = hass.data[CASETA_DOMAIN][config_entry.entry_id]
bridge = data.bridge
bridge_device = data.bridge_device
light_devices = bridge.get_devices_by_domain(DOMAIN)
async_add_entities(
LutronCasetaLight(light_device, bridge, bridge_device)
for light_device in light_devices
)
class LutronCasetaLight(LutronCasetaDeviceUpdatableEntity, LightEntity):
"""Representation of a Lutron Light, including dimmable."""
_attr_color_mode = ColorMode.BRIGHTNESS
_attr_supported_color_modes = {ColorMode.BRIGHTNESS}
_attr_supported_features = LightEntityFeature.TRANSITION
@property
def brightness(self):
"""Return the brightness of the light."""
return to_hass_level(self._device["current_state"])
async def _set_brightness(self, brightness, **kwargs):
args = {}
if ATTR_TRANSITION in kwargs:
args["fade_time"] = timedelta(seconds=kwargs[ATTR_TRANSITION])
await self._smartbridge.set_value(
self.device_id, to_lutron_level(brightness), **args
)
async def async_turn_on(self, **kwargs):
"""Turn the light on."""
brightness = kwargs.pop(ATTR_BRIGHTNESS, 255)
await self._set_brightness(brightness, **kwargs)
async def async_turn_off(self, **kwargs):
"""Turn the light off."""
await self._set_brightness(0, **kwargs)
@property
def is_on(self):
"""Return true if device is on."""
return self._device["current_state"] > 0