"""Platform for Schlage sensor integration."""

from __future__ import annotations

from homeassistant.components.sensor import (
    SensorDeviceClass,
    SensorEntity,
    SensorEntityDescription,
    SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import PERCENTAGE, EntityCategory
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.entity_platform import AddEntitiesCallback

from .const import DOMAIN
from .coordinator import LockData, SchlageDataUpdateCoordinator
from .entity import SchlageEntity

_SENSOR_DESCRIPTIONS: list[SensorEntityDescription] = [
    SensorEntityDescription(
        key="battery_level",
        device_class=SensorDeviceClass.BATTERY,
        entity_category=EntityCategory.DIAGNOSTIC,
        native_unit_of_measurement=PERCENTAGE,
        state_class=SensorStateClass.MEASUREMENT,
    ),
]


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up sensors based on a config entry."""
    coordinator: SchlageDataUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]

    def _add_new_locks(locks: dict[str, LockData]) -> None:
        async_add_entities(
            SchlageBatterySensor(
                coordinator=coordinator,
                description=description,
                device_id=device_id,
            )
            for description in _SENSOR_DESCRIPTIONS
            for device_id in locks
        )

    _add_new_locks(coordinator.data.locks)
    coordinator.new_locks_callbacks.append(_add_new_locks)


class SchlageBatterySensor(SchlageEntity, SensorEntity):
    """Schlage battery sensor entity."""

    def __init__(
        self,
        coordinator: SchlageDataUpdateCoordinator,
        description: SensorEntityDescription,
        device_id: str,
    ) -> None:
        """Initialize a Schlage battery sensor."""
        super().__init__(coordinator=coordinator, device_id=device_id)
        self.entity_description = description
        self._attr_unique_id = f"{device_id}_{description.key}"
        self._attr_native_value = getattr(self._lock, self.entity_description.key)

    @callback
    def _handle_coordinator_update(self) -> None:
        """Handle updated data from the coordinator."""
        if self.device_id in self.coordinator.data.locks:
            self._attr_native_value = getattr(self._lock, self.entity_description.key)
        super()._handle_coordinator_update()