core/homeassistant/components/mystrom/sensor.py

92 lines
2.9 KiB
Python

"""Support for myStrom sensors of switches/plugs."""
from __future__ import annotations
from collections.abc import Callable
from dataclasses import dataclass
from pymystrom.switch import MyStromSwitch
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorEntityDescription,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import UnitOfPower, UnitOfTemperature
from homeassistant.core import HomeAssistant
from homeassistant.helpers.device_registry import DeviceInfo
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import DOMAIN, MANUFACTURER
@dataclass(frozen=True)
class MyStromSwitchSensorEntityDescription(SensorEntityDescription):
"""Class describing mystrom switch sensor entities."""
value_fn: Callable[[MyStromSwitch], float | None] = lambda _: None
SENSOR_TYPES: tuple[MyStromSwitchSensorEntityDescription, ...] = (
MyStromSwitchSensorEntityDescription(
key="consumption",
device_class=SensorDeviceClass.POWER,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfPower.WATT,
value_fn=lambda device: device.consumption,
),
MyStromSwitchSensorEntityDescription(
key="temperature",
device_class=SensorDeviceClass.TEMPERATURE,
state_class=SensorStateClass.MEASUREMENT,
native_unit_of_measurement=UnitOfTemperature.CELSIUS,
value_fn=lambda device: device.temperature,
),
)
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up the myStrom entities."""
device: MyStromSwitch = hass.data[DOMAIN][entry.entry_id].device
sensors = []
for description in SENSOR_TYPES:
if description.value_fn(device) is not None:
sensors.append(MyStromSwitchSensor(device, entry.title, description))
async_add_entities(sensors)
class MyStromSwitchSensor(SensorEntity):
"""Representation of the consumption or temperature of a myStrom switch/plug."""
entity_description: MyStromSwitchSensorEntityDescription
_attr_has_entity_name = True
def __init__(
self,
device: MyStromSwitch,
name: str,
description: MyStromSwitchSensorEntityDescription,
) -> None:
"""Initialize the sensor."""
self.device = device
self.entity_description = description
self._attr_unique_id = f"{device.mac}-{description.key}"
self._attr_device_info = DeviceInfo(
identifiers={(DOMAIN, device.mac)},
name=name,
manufacturer=MANUFACTURER,
sw_version=device.firmware,
)
@property
def native_value(self) -> float | None:
"""Return the value of the sensor."""
return self.entity_description.value_fn(self.device)