"""Oasis Mini select entity."""

from __future__ import annotations

from dataclasses import dataclass
from typing import Any, Awaitable, Callable

from homeassistant.components.select import SelectEntity, SelectEntityDescription
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.entity import EntityDescription
from homeassistant.helpers.entity_platform import AddEntitiesCallback

from . import OasisMiniConfigEntry
from .coordinator import OasisMiniCoordinator
from .entity import OasisMiniEntity
from .pyoasismini import AUTOPLAY_MAP, OasisMini
from .pyoasismini.const import TRACKS


@dataclass(frozen=True, kw_only=True)
class OasisMiniSelectEntityDescription(SelectEntityDescription):
    """Oasis Mini select entity description."""

    current_value: Callable[[OasisMini], Any]
    select_fn: Callable[[OasisMini, int], Awaitable[None]]
    update_handler: Callable[[OasisMiniSelectEntity], None] | None = None


class OasisMiniSelectEntity(OasisMiniEntity, SelectEntity):
    """Oasis Mini select entity."""

    entity_description: OasisMiniSelectEntityDescription
    _current_value: Any | None = None

    def __init__(
        self,
        coordinator: OasisMiniCoordinator,
        description: EntityDescription,
    ) -> None:
        """Construct an Oasis Mini select entity."""
        super().__init__(coordinator, description)
        self._handle_coordinator_update()

    async def async_select_option(self, option: str) -> None:
        """Change the selected option."""
        await self.entity_description.select_fn(self.device, self.options.index(option))
        await self.coordinator.async_request_refresh()

    @callback
    def _handle_coordinator_update(self) -> None:
        """Handle updated data from the coordinator."""
        new_value = self.entity_description.current_value(self.device)
        if self._current_value == new_value:
            return
        self._current_value = new_value
        if update_handler := self.entity_description.update_handler:
            update_handler(self)
        else:
            self._attr_current_option = getattr(
                self.device, self.entity_description.key
            )
        if self.hass:
            return super()._handle_coordinator_update()


def playlist_update_handler(entity: OasisMiniSelectEntity) -> None:
    """Handle playlist updates."""
    # pylint: disable=protected-access
    device = entity.device
    options = [
        device._playlist.get(track, {}).get(
            "name",
            TRACKS.get(track, {"id": track, "name": f"Unknown Title (#{track})"}).get(
                "name",
                device.track["name"]
                if device.track and device.track["id"] == track
                else str(track),
            ),
        )
        for track in device.playlist
    ]
    entity._attr_options = options
    index = min(device.playlist_index, len(options) - 1)
    entity._attr_current_option = options[index] if options else None


DESCRIPTORS = (
    OasisMiniSelectEntityDescription(
        key="autoplay",
        translation_key="autoplay",
        options=list(AUTOPLAY_MAP.values()),
        current_value=lambda device: device.autoplay,
        select_fn=lambda device, option: device.async_set_autoplay(option),
    ),
    OasisMiniSelectEntityDescription(
        key="playlist",
        translation_key="playlist",
        current_value=lambda device: (device.playlist.copy(), device.playlist_index),
        select_fn=lambda device, option: device.async_change_track(option),
        update_handler=playlist_update_handler,
    ),
)


async def async_setup_entry(
    hass: HomeAssistant,
    entry: OasisMiniConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up Oasis Mini select using config entry."""
    async_add_entities(
        [
            OasisMiniSelectEntity(entry.runtime_data, descriptor)
            for descriptor in DESCRIPTORS
        ]
    )