core/homeassistant/components/tradfri/sensor.py

129 lines
3.9 KiB
Python

"""Support for IKEA Tradfri sensors."""
from __future__ import annotations
from collections.abc import Callable
from dataclasses import dataclass
from typing import Any, cast
from pytradfri.command import Command
from pytradfri.device import Device
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorEntityDescription,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONCENTRATION_MICROGRAMS_PER_CUBIC_METER, PERCENTAGE
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .base_class import TradfriBaseEntity
from .const import CONF_GATEWAY_ID, COORDINATOR, COORDINATOR_LIST, DOMAIN, KEY_API
from .coordinator import TradfriDeviceDataUpdateCoordinator
@dataclass
class TradfriSensorEntityDescriptionMixin:
"""Mixin for required keys."""
value: Callable[[Device], Any | None]
@dataclass
class TradfriSensorEntityDescription(
SensorEntityDescription,
TradfriSensorEntityDescriptionMixin,
):
"""Class describing Tradfri sensor entities."""
def _get_air_quality(device: Device) -> int | None:
"""Fetch the air quality value."""
if (
device.air_purifier_control.air_purifiers[0].air_quality == 65535
): # The sensor returns 65535 if the fan is turned off
return None
return cast(int, device.air_purifier_control.air_purifiers[0].air_quality)
SENSOR_DESCRIPTION_AQI = TradfriSensorEntityDescription(
device_class=SensorDeviceClass.AQI,
native_unit_of_measurement=CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
key=SensorDeviceClass.AQI,
value=_get_air_quality,
)
SENSOR_DESCRIPTION_BATTERY = TradfriSensorEntityDescription(
device_class=SensorDeviceClass.BATTERY,
native_unit_of_measurement=PERCENTAGE,
key=SensorDeviceClass.BATTERY,
value=lambda device: cast(int, device.device_info.battery_level),
)
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up a Tradfri config entry."""
gateway_id = config_entry.data[CONF_GATEWAY_ID]
coordinator_data = hass.data[DOMAIN][config_entry.entry_id][COORDINATOR]
api = coordinator_data[KEY_API]
entities: list[TradfriSensor] = []
for device_coordinator in coordinator_data[COORDINATOR_LIST]:
description = None
if (
not device_coordinator.device.has_light_control
and not device_coordinator.device.has_socket_control
and not device_coordinator.device.has_signal_repeater_control
and not device_coordinator.device.has_air_purifier_control
):
description = SENSOR_DESCRIPTION_BATTERY
elif device_coordinator.device.has_air_purifier_control:
description = SENSOR_DESCRIPTION_AQI
if description:
entities.append(
TradfriSensor(
device_coordinator,
api,
gateway_id,
description=description,
)
)
async_add_entities(entities)
class TradfriSensor(TradfriBaseEntity, SensorEntity):
"""The platform class required by Home Assistant."""
entity_description: TradfriSensorEntityDescription
def __init__(
self,
device_coordinator: TradfriDeviceDataUpdateCoordinator,
api: Callable[[Command | list[Command]], Any],
gateway_id: str,
description: TradfriSensorEntityDescription,
) -> None:
"""Initialize a Tradfri sensor."""
super().__init__(
device_coordinator=device_coordinator,
api=api,
gateway_id=gateway_id,
)
self.entity_description = description
self._refresh() # Set initial state
def _refresh(self) -> None:
"""Refresh the device."""
self._attr_native_value = self.entity_description.value(self.coordinator.data)