hass-core/homeassistant/components/fastdotcom/sensor.py

"""Support for Fast.com internet speed testing sensor."""
from __future__ import annotations

from homeassistant.components.sensor import (
    SensorDeviceClass,
    SensorEntity,
    SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import UnitOfDataRate
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.update_coordinator import CoordinatorEntity

from .const import DOMAIN
from .coordinator import FastdotcomDataUpdateCoordindator


async def async_setup_entry(
    hass: HomeAssistant,
    entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up the Fast.com sensor."""
    coordinator: FastdotcomDataUpdateCoordindator = hass.data[DOMAIN][entry.entry_id]
    async_add_entities([SpeedtestSensor(entry.entry_id, coordinator)])


class SpeedtestSensor(
    CoordinatorEntity[FastdotcomDataUpdateCoordindator], SensorEntity
):
    """Implementation of a Fast.com sensor."""

    _attr_name = "Fast.com Download"
    _attr_device_class = SensorDeviceClass.DATA_RATE
    _attr_native_unit_of_measurement = UnitOfDataRate.MEGABITS_PER_SECOND
    _attr_state_class = SensorStateClass.MEASUREMENT
    _attr_icon = "mdi:speedometer"
    _attr_should_poll = False

    def __init__(
        self, entry_id: str, coordinator: FastdotcomDataUpdateCoordindator
    ) -> None:
        """Initialize the sensor."""
        super().__init__(coordinator)
        self._attr_unique_id = entry_id

    @property
    def native_value(
        self,
    ) -> float:
        """Return the state of the sensor."""
        return self.coordinator.data