core/homeassistant/components/lutron_caseta/light.py

75 lines
2.1 KiB
Python

"""Support for Lutron Caseta lights."""
import logging
from homeassistant.components.light import (
ATTR_BRIGHTNESS,
DOMAIN,
SUPPORT_BRIGHTNESS,
LightEntity,
)
from . import DOMAIN as CASETA_DOMAIN, LutronCasetaDevice
_LOGGER = logging.getLogger(__name__)
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, config_entry, async_add_entities):
"""Set up the Lutron Caseta light platform.
Adds dimmers from the Caseta bridge associated with the config_entry as
light entities.
"""
entities = []
bridge = hass.data[CASETA_DOMAIN][config_entry.entry_id]
light_devices = bridge.get_devices_by_domain(DOMAIN)
for light_device in light_devices:
entity = LutronCasetaLight(light_device, bridge)
entities.append(entity)
async_add_entities(entities, True)
class LutronCasetaLight(LutronCasetaDevice, LightEntity):
"""Representation of a Lutron Light, including dimmable."""
@property
def supported_features(self):
"""Flag supported features."""
return SUPPORT_BRIGHTNESS
@property
def brightness(self):
"""Return the brightness of the light."""
return to_hass_level(self._device["current_state"])
async def async_turn_on(self, **kwargs):
"""Turn the light on."""
brightness = kwargs.get(ATTR_BRIGHTNESS, 255)
self._smartbridge.set_value(self.device_id, to_lutron_level(brightness))
async def async_turn_off(self, **kwargs):
"""Turn the light off."""
self._smartbridge.set_value(self.device_id, 0)
@property
def is_on(self):
"""Return true if device is on."""
return self._device["current_state"] > 0
async def async_update(self):
"""Call when forcing a refresh of the device."""
self._device = self._smartbridge.get_device_by_id(self.device_id)
_LOGGER.debug(self._device)