core/homeassistant/components/lametric/sensor.py

80 lines
2.3 KiB
Python

"""Support for LaMetric sensors."""
from __future__ import annotations
from collections.abc import Callable
from dataclasses import dataclass
from demetriek import Device
from homeassistant.components.sensor import (
SensorEntity,
SensorEntityDescription,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import PERCENTAGE, EntityCategory
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import DOMAIN
from .coordinator import LaMetricDataUpdateCoordinator
from .entity import LaMetricEntity
@dataclass(frozen=True, kw_only=True)
class LaMetricSensorEntityDescription(SensorEntityDescription):
"""Class describing LaMetric sensor entities."""
value_fn: Callable[[Device], int | None]
SENSORS = [
LaMetricSensorEntityDescription(
key="rssi",
translation_key="rssi",
entity_category=EntityCategory.DIAGNOSTIC,
entity_registry_enabled_default=False,
native_unit_of_measurement=PERCENTAGE,
state_class=SensorStateClass.MEASUREMENT,
value_fn=lambda device: device.wifi.rssi,
),
]
async def async_setup_entry(
hass: HomeAssistant,
entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up LaMetric sensor based on a config entry."""
coordinator: LaMetricDataUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
async_add_entities(
LaMetricSensorEntity(
coordinator=coordinator,
description=description,
)
for description in SENSORS
)
class LaMetricSensorEntity(LaMetricEntity, SensorEntity):
"""Representation of a LaMetric sensor."""
entity_description: LaMetricSensorEntityDescription
def __init__(
self,
coordinator: LaMetricDataUpdateCoordinator,
description: LaMetricSensorEntityDescription,
) -> None:
"""Initiate LaMetric sensor."""
super().__init__(coordinator)
self.entity_description = description
self._attr_unique_id = f"{coordinator.data.serial_number}-{description.key}"
@property
def native_value(self) -> int | None:
"""Return the sensor value."""
return self.entity_description.value_fn(self.coordinator.data)