mirror of
https://github.com/home-assistant/core
synced 2024-08-28 03:36:46 +02:00
108 lines
3.5 KiB
Python
108 lines
3.5 KiB
Python
"""Support for power sensors in WeMo Insight devices."""
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from __future__ import annotations
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from collections.abc import Callable
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from dataclasses import dataclass
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from typing import cast
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from homeassistant.components.sensor import (
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SensorDeviceClass,
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SensorEntity,
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SensorEntityDescription,
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SensorStateClass,
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)
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import UnitOfEnergy, UnitOfPower
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.typing import StateType
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from . import async_wemo_dispatcher_connect
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from .entity import WemoEntity
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from .wemo_device import DeviceCoordinator
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@dataclass(frozen=True)
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class AttributeSensorDescription(SensorEntityDescription):
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"""SensorEntityDescription for WeMo AttributeSensor entities."""
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# AttributeSensor does not support UNDEFINED,
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# restrict the type to str | None.
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name: str | None = None
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state_conversion: Callable[[StateType], StateType] | None = None
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unique_id_suffix: str | None = None
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ATTRIBUTE_SENSORS = (
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AttributeSensorDescription(
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name="Current Power",
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device_class=SensorDeviceClass.POWER,
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state_class=SensorStateClass.MEASUREMENT,
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native_unit_of_measurement=UnitOfPower.WATT,
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key="current_power_watts",
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unique_id_suffix="currentpower",
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state_conversion=lambda state: round(cast(float, state), 2),
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),
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AttributeSensorDescription(
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name="Today Energy",
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device_class=SensorDeviceClass.ENERGY,
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state_class=SensorStateClass.TOTAL_INCREASING,
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native_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
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key="today_kwh",
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unique_id_suffix="todaymw",
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state_conversion=lambda state: round(cast(float, state), 2),
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),
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)
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async def async_setup_entry(
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hass: HomeAssistant,
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_config_entry: ConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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"""Set up WeMo sensors."""
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async def _discovered_wemo(coordinator: DeviceCoordinator) -> None:
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"""Handle a discovered Wemo device."""
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async_add_entities(
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AttributeSensor(coordinator, description)
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for description in ATTRIBUTE_SENSORS
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if hasattr(coordinator.wemo, description.key)
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)
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await async_wemo_dispatcher_connect(hass, _discovered_wemo)
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class AttributeSensor(WemoEntity, SensorEntity):
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"""Sensor that reads attributes of a wemo device."""
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entity_description: AttributeSensorDescription
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def __init__(
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self, coordinator: DeviceCoordinator, description: AttributeSensorDescription
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) -> None:
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"""Init AttributeSensor."""
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super().__init__(coordinator)
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self.entity_description = description
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@property
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def name_suffix(self) -> str | None:
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"""Return the name of the entity."""
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return self.entity_description.name
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@property
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def unique_id_suffix(self) -> str | None:
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"""Suffix to append to the WeMo device's unique ID."""
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return self.entity_description.unique_id_suffix
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def convert_state(self, value: StateType) -> StateType:
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"""Convert native state to a value appropriate for the sensor."""
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if (convert := self.entity_description.state_conversion) is None:
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return None
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return convert(value)
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@property
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def native_value(self) -> StateType:
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"""Return the value of the device attribute."""
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return self.convert_state(getattr(self.wemo, self.entity_description.key))
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