sensor.py

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"""Support for Aqualink temperature sensors."""
 
from __future__ import annotations
 
from iaqualink.device import AqualinkSensor
 
from homeassistant.components.sensor import (
    DOMAIN as SENSOR_DOMAIN,
    SensorDeviceClass,
    SensorEntity,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import UnitOfTemperature
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
from .const import DOMAIN as AQUALINK_DOMAIN
from .entity import AqualinkEntity
 
PARALLEL_UPDATES = 0
 
 
async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up discovered sensors."""
    async_add_entities(
        (HassAqualinkSensor(dev) for dev in hass.data[AQUALINK_DOMAIN][SENSOR_DOMAIN]),
        True,
    )
 
 
class HassAqualinkSensor(AqualinkEntity, SensorEntity):
    """Representation of a sensor."""
 
    def __init__(self, dev: AqualinkSensor) -> None:
        """Initialize AquaLink sensor."""
        super().__init__(dev)
        self._attr_name_attr_name = dev.label
        if not dev.name.endswith("_temp"):
            return
        self._attr_device_class_attr_device_class = SensorDeviceClass.TEMPERATURE
        if dev.system.temp_unit == "F":
            self._attr_native_unit_of_measurement_attr_native_unit_of_measurement = UnitOfTemperature.FAHRENHEIT
            return
        self._attr_native_unit_of_measurement_attr_native_unit_of_measurement = UnitOfTemperature.CELSIUS
 
    @property
    def native_value(self) -> int | float | None:
        """Return the state of the sensor."""
        if self.devdev.state == "":
            return None
 
        try:
            return int(self.devdev.state)
        except ValueError:
            return float(self.devdev.state)