"""Support for Roborock switch."""

from collections.abc import Callable
from dataclasses import dataclass
import logging
from typing import Any

from roborock.devices.traits.v1 import PropertiesApi
from roborock.devices.traits.v1.common import RoborockSwitchBase
from roborock.exceptions import RoborockException
from roborock.roborock_message import RoborockDyadDataProtocol, RoborockZeoProtocol

from homeassistant.components.switch import SwitchEntity, SwitchEntityDescription
from homeassistant.const import EntityCategory
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import HomeAssistantError
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback

from .const import DOMAIN
from .coordinator import (
    RoborockConfigEntry,
    RoborockDataUpdateCoordinator,
    RoborockDataUpdateCoordinatorA01,
)
from .entity import RoborockCoordinatedEntityA01, RoborockEntityV1

_LOGGER = logging.getLogger(__name__)

PARALLEL_UPDATES = 0


@dataclass(frozen=True, kw_only=True)
class RoborockSwitchDescription(SwitchEntityDescription):
    """Class to describe a Roborock switch entity."""

    trait: Callable[[PropertiesApi], RoborockSwitchBase | None]

    # If it is a dock entity
    is_dock_entity: bool = False


SWITCH_DESCRIPTIONS: list[RoborockSwitchDescription] = [
    RoborockSwitchDescription(
        trait=lambda traits: traits.child_lock,
        key="child_lock",
        translation_key="child_lock",
        entity_category=EntityCategory.CONFIG,
        is_dock_entity=True,
    ),
    RoborockSwitchDescription(
        trait=lambda traits: traits.flow_led_status,
        key="status_indicator",
        translation_key="status_indicator",
        entity_category=EntityCategory.CONFIG,
        is_dock_entity=True,
    ),
    RoborockSwitchDescription(
        trait=lambda traits: traits.dnd,
        key="dnd_switch",
        translation_key="dnd_switch",
        entity_category=EntityCategory.CONFIG,
    ),
    RoborockSwitchDescription(
        trait=lambda traits: traits.valley_electricity_timer,
        key="off_peak_switch",
        translation_key="off_peak_switch",
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
    ),
]


@dataclass(frozen=True, kw_only=True)
class RoborockSwitchDescriptionA01(SwitchEntityDescription):
    """Class to describe a Roborock A01 switch entity."""

    data_protocol: RoborockDyadDataProtocol | RoborockZeoProtocol


A01_SWITCH_DESCRIPTIONS: list[RoborockSwitchDescriptionA01] = [
    RoborockSwitchDescriptionA01(
        key="sound_setting",
        data_protocol=RoborockZeoProtocol.SOUND_SET,
        translation_key="sound_setting",
        entity_category=EntityCategory.CONFIG,
    ),
]


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: RoborockConfigEntry,
    async_add_entities: AddConfigEntryEntitiesCallback,
) -> None:
    """Set up Roborock switch platform."""
    # V1 switches - using trait pattern from HEAD
    async_add_entities(
        [
            RoborockSwitch(
                f"{description.key}_{coordinator.duid_slug}",
                coordinator,
                description,
                trait,
            )
            for coordinator in config_entry.runtime_data.v1
            for description in SWITCH_DESCRIPTIONS
            if (trait := description.trait(coordinator.properties_api)) is not None
        ]
    )

    # A01 switches
    async_add_entities(
        RoborockSwitchA01(
            coordinator,
            description,
        )
        for coordinator in config_entry.runtime_data.a01
        for description in A01_SWITCH_DESCRIPTIONS
        if description.data_protocol in coordinator.request_protocols
    )


class RoborockSwitch(RoborockEntityV1, SwitchEntity):
    """A class to toggle Roborock device functionality with a coordinator."""

    entity_description: RoborockSwitchDescription

    def __init__(
        self,
        unique_id: str,
        coordinator: RoborockDataUpdateCoordinator,
        entity_description: RoborockSwitchDescription,
        trait: RoborockSwitchBase,
    ) -> None:
        """Initialize the entity."""
        self.entity_description = entity_description
        super().__init__(
            unique_id,
            (
                coordinator.device_info
                if not entity_description.is_dock_entity
                else coordinator.dock_device_info
            ),
            coordinator.properties_api.command,
        )
        self._trait = trait

    async def async_turn_off(self, **kwargs: Any) -> None:
        """Turn off the switch."""
        try:
            await self._trait.disable()
        except RoborockException as err:
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="update_options_failed",
            ) from err

    async def async_turn_on(self, **kwargs: Any) -> None:
        """Turn on the switch."""
        try:
            await self._trait.enable()
        except RoborockException as err:
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="update_options_failed",
            ) from err

    @property
    def is_on(self) -> bool | None:
        """Return True if entity is on."""
        return self._trait.is_on


class RoborockSwitchA01(RoborockCoordinatedEntityA01, SwitchEntity):
    """A class to let you turn functionality on Roborock A01 devices on and off."""

    entity_description: RoborockSwitchDescriptionA01

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinatorA01,
        description: RoborockSwitchDescriptionA01,
    ) -> None:
        """Initialize the entity."""
        self.entity_description = description
        super().__init__(f"{description.key}_{coordinator.duid_slug}", coordinator)

    async def async_turn_off(self, **kwargs: Any) -> None:
        """Turn off the switch."""
        try:
            await self.coordinator.api.set_value(  # type: ignore[attr-defined]
                self.entity_description.data_protocol, 0
            )
            await self.coordinator.async_request_refresh()
        except RoborockException as err:
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="update_options_failed",
            ) from err

    async def async_turn_on(self, **kwargs: Any) -> None:
        """Turn on the switch."""
        try:
            await self.coordinator.api.set_value(  # type: ignore[attr-defined]
                self.entity_description.data_protocol, 1
            )
            await self.coordinator.async_request_refresh()
        except RoborockException as err:
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="update_options_failed",
            ) from err

    @property
    def is_on(self) -> bool | None:
        """Return True if entity is on."""
        status = self.coordinator.data.get(self.entity_description.data_protocol)
        if status is None:
            return None
        return bool(status)