"""Switch platform for Remote Media Player integration (display power)."""

from __future__ import annotations

import logging
from typing import Any

from homeassistant.components.switch import SwitchDeviceClass, SwitchEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.update_coordinator import CoordinatorEntity

from .api_client import MediaServerClient, MediaServerError
from .const import DOMAIN
from .display_coordinator import DisplayCoordinator
from .display_device import display_device_info

_LOGGER = logging.getLogger(__name__)


async def async_setup_entry(
    hass: HomeAssistant,
    entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up display power switch entities from a config entry."""
    data = hass.data[DOMAIN][entry.entry_id]
    client: MediaServerClient = data["client"]
    coordinator: DisplayCoordinator = data["display_coordinator"]

    if not coordinator.data:
        return

    entities = [
        DisplayPowerSwitch(coordinator, client, entry, monitor)
        for monitor in coordinator.data.values()
        if monitor.get("power_supported", False)
    ]

    if entities:
        async_add_entities(entities)
        _LOGGER.info("Added %d display power switch entities", len(entities))


class DisplayPowerSwitch(CoordinatorEntity[DisplayCoordinator], SwitchEntity):
    """Switch entity for controlling display power."""

    _attr_has_entity_name = True
    _attr_device_class = SwitchDeviceClass.SWITCH
    _attr_translation_key = "power"

    def __init__(
        self,
        coordinator: DisplayCoordinator,
        client: MediaServerClient,
        entry: ConfigEntry,
        monitor: dict[str, Any],
    ) -> None:
        super().__init__(coordinator)
        self._client = client
        self._monitor_id: int = monitor["id"]
        self._attr_unique_id = f"{entry.entry_id}_display_power_{self._monitor_id}"
        self._attr_device_info = display_device_info(entry, monitor)

    @property
    def _monitor(self) -> dict[str, Any]:
        if self.coordinator.data is None:
            return {}
        return self.coordinator.data.get(self._monitor_id, {})

    @property
    def is_on(self) -> bool:
        return bool(self._monitor.get("power_on", True))

    @property
    def icon(self) -> str:
        return "mdi:monitor" if self.is_on else "mdi:monitor-off"

    async def _set_power(self, on: bool) -> None:
        try:
            result = await self._client.set_display_power(self._monitor_id, on)
        except MediaServerError as err:
            _LOGGER.error(
                "Failed to %s monitor %d: %s",
                "turn on" if on else "turn off",
                self._monitor_id,
                err,
            )
            return
        if not result.get("success"):
            _LOGGER.error(
                "Failed to %s monitor %d",
                "turn on" if on else "turn off",
                self._monitor_id,
            )
            return
        self.coordinator.apply_optimistic(self._monitor_id, power_on=on)

    async def async_turn_on(self, **kwargs: Any) -> None:
        await self._set_power(True)

    async def async_turn_off(self, **kwargs: Any) -> None:
        await self._set_power(False)