core/homeassistant/components/lifx/sensor.py

72 lines
2.2 KiB
Python

"""Sensors for LIFX lights."""
from __future__ import annotations
from datetime import timedelta
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorEntityDescription,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import EntityCategory
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import ATTR_RSSI, DOMAIN
from .coordinator import LIFXUpdateCoordinator
from .entity import LIFXEntity
SCAN_INTERVAL = timedelta(seconds=30)
RSSI_SENSOR = SensorEntityDescription(
key=ATTR_RSSI,
translation_key="rssi",
device_class=SensorDeviceClass.SIGNAL_STRENGTH,
entity_category=EntityCategory.DIAGNOSTIC,
state_class=SensorStateClass.MEASUREMENT,
entity_registry_enabled_default=False,
)
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up LIFX sensor from config entry."""
coordinator: LIFXUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
async_add_entities([LIFXRssiSensor(coordinator, RSSI_SENSOR)])
class LIFXRssiSensor(LIFXEntity, SensorEntity):
"""LIFX RSSI sensor."""
def __init__(
self,
coordinator: LIFXUpdateCoordinator,
description: SensorEntityDescription,
) -> None:
"""Initialise the RSSI sensor."""
super().__init__(coordinator)
self.entity_description = description
self._attr_unique_id = f"{coordinator.serial_number}_{description.key}"
self._attr_native_unit_of_measurement = coordinator.rssi_uom
@callback
def _handle_coordinator_update(self) -> None:
"""Handle updated data from the coordinator."""
self._async_update_attrs()
super()._handle_coordinator_update()
@callback
def _async_update_attrs(self) -> None:
"""Handle coordinator updates."""
self._attr_native_value = self.coordinator.rssi
async def async_added_to_hass(self) -> None:
"""Enable RSSI updates."""
self.async_on_remove(self.coordinator.async_enable_rssi_updates())
return await super().async_added_to_hass()