core/homeassistant/components/litejet/light.py

142 lines
4.9 KiB
Python

"""Support for LiteJet lights."""
from __future__ import annotations
from typing import Any
from pylitejet import LiteJet, LiteJetError
from homeassistant.components.light import (
ATTR_BRIGHTNESS,
ATTR_TRANSITION,
ColorMode,
LightEntity,
LightEntityFeature,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import HomeAssistantError
from homeassistant.helpers.device_registry import DeviceInfo
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import CONF_DEFAULT_TRANSITION, DOMAIN
ATTR_NUMBER = "number"
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up entry."""
system: LiteJet = hass.data[DOMAIN]
entities = []
for index in system.loads():
name = await system.get_load_name(index)
entities.append(LiteJetLight(config_entry, system, index, name))
async_add_entities(entities, True)
class LiteJetLight(LightEntity):
"""Representation of a single LiteJet light."""
_attr_color_mode = ColorMode.BRIGHTNESS
_attr_should_poll = False
_attr_supported_color_modes = {ColorMode.BRIGHTNESS}
_attr_supported_features = LightEntityFeature.TRANSITION
_attr_has_entity_name = True
_attr_name = None
def __init__(
self, config_entry: ConfigEntry, system: LiteJet, index: int, name: str
) -> None:
"""Initialize a LiteJet light."""
self._config_entry = config_entry
self._lj = system
self._index = index
self._attr_brightness = 0
self._attr_is_on = False
self._attr_unique_id = f"{config_entry.entry_id}_{index}"
self._attr_extra_state_attributes = {ATTR_NUMBER: self._index}
self._attr_device_info = DeviceInfo(
identifiers={(DOMAIN, f"{config_entry.entry_id}_light_{index}")},
name=name,
via_device=(DOMAIN, f"{config_entry.entry_id}_mcp"),
)
async def async_added_to_hass(self) -> None:
"""Run when this Entity has been added to HA."""
self._lj.on_load_activated(self._index, self._on_load_changed)
self._lj.on_load_deactivated(self._index, self._on_load_changed)
self._lj.on_connected_changed(self._on_connected_changed)
async def async_will_remove_from_hass(self) -> None:
"""Entity being removed from hass."""
self._lj.unsubscribe(self._on_load_changed)
self._lj.unsubscribe(self._on_connected_changed)
def _on_load_changed(self, level: int | None) -> None:
"""Handle state changes."""
self.schedule_update_ha_state(True)
def _on_connected_changed(self, connected: bool, reason: str) -> None:
"""Handle connected changes."""
self.schedule_update_ha_state(True)
async def async_turn_on(self, **kwargs: Any) -> None:
"""Turn on the light."""
# If neither attribute is specified then the simple activate load
# LiteJet API will use the per-light default brightness and
# transition values programmed in the LiteJet system.
if ATTR_BRIGHTNESS not in kwargs and ATTR_TRANSITION not in kwargs:
try:
await self._lj.activate_load(self._index)
except LiteJetError as exc:
raise HomeAssistantError from exc
return
# If either attribute is specified then Home Assistant must
# control both values.
default_transition = self._config_entry.options.get(CONF_DEFAULT_TRANSITION, 0)
transition = kwargs.get(ATTR_TRANSITION, default_transition)
brightness = int(kwargs.get(ATTR_BRIGHTNESS, 255) / 255 * 99)
try:
await self._lj.activate_load_at(self._index, brightness, int(transition))
except LiteJetError as exc:
raise HomeAssistantError from exc
async def async_turn_off(self, **kwargs: Any) -> None:
"""Turn off the light."""
if ATTR_TRANSITION in kwargs:
try:
await self._lj.activate_load_at(self._index, 0, kwargs[ATTR_TRANSITION])
except LiteJetError as exc:
raise HomeAssistantError from exc
return
# If transition attribute is not specified then the simple
# deactivate load LiteJet API will use the per-light default
# transition value programmed in the LiteJet system.
try:
await self._lj.deactivate_load(self._index)
except LiteJetError as exc:
raise HomeAssistantError from exc
async def async_update(self) -> None:
"""Retrieve the light's brightness from the LiteJet system."""
self._attr_available = self._lj.connected
if not self.available:
return
self._attr_brightness = int(
await self._lj.get_load_level(self._index) / 99 * 255
)
self._attr_is_on = self.brightness != 0