core/homeassistant/components/isy994/light.py

68 lines
2.1 KiB
Python

"""Support for ISY994 lights."""
import logging
from typing import Callable
from homeassistant.components.light import DOMAIN, SUPPORT_BRIGHTNESS, LightEntity
from homeassistant.helpers.typing import ConfigType
from . import ISY994_NODES, ISYDevice
_LOGGER = logging.getLogger(__name__)
def setup_platform(
hass, config: ConfigType, add_entities: Callable[[list], None], discovery_info=None
):
"""Set up the ISY994 light platform."""
devices = []
for node in hass.data[ISY994_NODES][DOMAIN]:
devices.append(ISYLightDevice(node))
add_entities(devices)
class ISYLightDevice(ISYDevice, LightEntity):
"""Representation of an ISY994 light device."""
def __init__(self, node) -> None:
"""Initialize the ISY994 light device."""
super().__init__(node)
self._last_brightness = self.brightness
@property
def is_on(self) -> bool:
"""Get whether the ISY994 light is on."""
if self.is_unknown():
return False
return self.value != 0
@property
def brightness(self) -> float:
"""Get the brightness of the ISY994 light."""
return None if self.is_unknown() else self.value
def turn_off(self, **kwargs) -> None:
"""Send the turn off command to the ISY994 light device."""
self._last_brightness = self.brightness
if not self._node.off():
_LOGGER.debug("Unable to turn off light")
def on_update(self, event: object) -> None:
"""Save brightness in the update event from the ISY994 Node."""
if not self.is_unknown() and self.value != 0:
self._last_brightness = self.value
super().on_update(event)
# pylint: disable=arguments-differ
def turn_on(self, brightness=None, **kwargs) -> None:
"""Send the turn on command to the ISY994 light device."""
if brightness is None and self._last_brightness is not None:
brightness = self._last_brightness
if not self._node.on(val=brightness):
_LOGGER.debug("Unable to turn on light")
@property
def supported_features(self):
"""Flag supported features."""
return SUPPORT_BRIGHTNESS