core/homeassistant/components/steamist/sensor.py

97 lines
2.7 KiB
Python

"""Support for Steamist sensors."""
from __future__ import annotations
from collections.abc import Callable
from dataclasses import dataclass
from aiosteamist import SteamistStatus
from homeassistant.components.sensor import (
SensorDeviceClass,
SensorEntity,
SensorEntityDescription,
SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import UnitOfTemperature, UnitOfTime
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import DOMAIN
from .coordinator import SteamistDataUpdateCoordinator
from .entity import SteamistEntity
_KEY_MINUTES_REMAIN = "minutes_remain"
_KEY_TEMP = "temp"
UNIT_MAPPINGS = {
"C": UnitOfTemperature.CELSIUS,
"F": UnitOfTemperature.FAHRENHEIT,
}
@dataclass(frozen=True, kw_only=True)
class SteamistSensorEntityDescription(SensorEntityDescription):
"""Describes a Steamist sensor entity."""
value_fn: Callable[[SteamistStatus], int | None]
SENSORS: tuple[SteamistSensorEntityDescription, ...] = (
SteamistSensorEntityDescription(
key=_KEY_MINUTES_REMAIN,
translation_key="steam_minutes_remain",
native_unit_of_measurement=UnitOfTime.MINUTES,
value_fn=lambda status: status.minutes_remain,
),
SteamistSensorEntityDescription(
key=_KEY_TEMP,
translation_key="steam_temperature",
device_class=SensorDeviceClass.TEMPERATURE,
state_class=SensorStateClass.MEASUREMENT,
value_fn=lambda status: status.temp,
),
)
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up sensors."""
coordinator: SteamistDataUpdateCoordinator = hass.data[DOMAIN][
config_entry.entry_id
]
async_add_entities(
[
SteamistSensorEntity(coordinator, config_entry, description)
for description in SENSORS
]
)
class SteamistSensorEntity(SteamistEntity, SensorEntity):
"""Representation of a Steamist steam switch."""
entity_description: SteamistSensorEntityDescription
def __init__(
self,
coordinator: SteamistDataUpdateCoordinator,
entry: ConfigEntry,
description: SteamistSensorEntityDescription,
) -> None:
"""Initialize the sensor entity."""
super().__init__(coordinator, entry, description)
if description.key == _KEY_TEMP:
self._attr_native_unit_of_measurement = UNIT_MAPPINGS[
self._status.temp_units
]
@property
def native_value(self) -> int | None:
"""Return the native value of the sensor."""
return self.entity_description.value_fn(self._status)