"""Support for Roborock button."""

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

from roborock.devices.traits.v1.consumeable import ConsumableAttribute
from roborock.exceptions import RoborockException
from roborock.roborock_message import RoborockZeoProtocol

from homeassistant.components.button import ButtonEntity, ButtonEntityDescription
from homeassistant.const import EntityCategory
from homeassistant.core import HomeAssistant, callback
from homeassistant.exceptions import HomeAssistantError
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback

from .const import DOMAIN
from .coordinator import (
    RoborockB01Q10UpdateCoordinator,
    RoborockConfigEntry,
    RoborockCoordinatorType,
    RoborockDataUpdateCoordinator,
    RoborockDataUpdateCoordinatorA01,
    RoborockWashingMachineUpdateCoordinator,
)
from .entity import (
    RoborockCoordinatedEntityA01,
    RoborockCoordinatedEntityB01Q10,
    RoborockEntity,
    RoborockEntityV1,
)

_LOGGER = logging.getLogger(__name__)

PARALLEL_UPDATES = 0


@dataclass(frozen=True, kw_only=True)
class RoborockButtonDescription(ButtonEntityDescription):
    """Describes a Roborock button entity."""

    attribute: ConsumableAttribute
    is_dock_entity: bool = False
    is_supported: Callable[[RoborockDataUpdateCoordinator], bool] = lambda _: True


CONSUMABLE_BUTTON_DESCRIPTIONS = [
    RoborockButtonDescription(
        key="reset_sensor_consumable",
        translation_key="reset_sensor_consumable",
        attribute=ConsumableAttribute.SENSOR_DIRTY_TIME,
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
    ),
    RoborockButtonDescription(
        key="reset_air_filter_consumable",
        translation_key="reset_air_filter_consumable",
        attribute=ConsumableAttribute.FILTER_WORK_TIME,
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
    ),
    RoborockButtonDescription(
        key="reset_side_brush_consumable",
        translation_key="reset_side_brush_consumable",
        attribute=ConsumableAttribute.SIDE_BRUSH_WORK_TIME,
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
    ),
    RoborockButtonDescription(
        key="reset_main_brush_consumable",
        translation_key="reset_main_brush_consumable",
        attribute=ConsumableAttribute.MAIN_BRUSH_WORK_TIME,
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
    ),
    RoborockButtonDescription(
        key="reset_dock_strainer_consumable",
        translation_key="reset_dock_strainer_consumable",
        attribute=ConsumableAttribute.STRAINER_WORK_TIME,
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
        is_dock_entity=True,
        is_supported=lambda coordinator: (
            coordinator.properties_api.wash_towel_mode is not None
        ),
    ),
    RoborockButtonDescription(
        key="reset_dock_cleaning_brush_consumable",
        translation_key="reset_dock_cleaning_brush_consumable",
        attribute=ConsumableAttribute.CLEANING_BRUSH_WORK_TIME,
        entity_category=EntityCategory.CONFIG,
        entity_registry_enabled_default=False,
        is_dock_entity=True,
        is_supported=lambda coordinator: (
            coordinator.properties_api.wash_towel_mode is not None
        ),
    ),
]


@dataclass(frozen=True, kw_only=True)
class RoborockButtonDescriptionA01(ButtonEntityDescription):
    """Describes a Roborock A01 button entity."""

    data_protocol: RoborockZeoProtocol


ZEO_BUTTON_DESCRIPTIONS = [
    RoborockButtonDescriptionA01(
        key="start",
        data_protocol=RoborockZeoProtocol.START,
        translation_key="start",
    ),
    RoborockButtonDescriptionA01(
        key="pause",
        data_protocol=RoborockZeoProtocol.PAUSE,
        translation_key="pause",
    ),
    RoborockButtonDescriptionA01(
        key="shutdown",
        data_protocol=RoborockZeoProtocol.SHUTDOWN,
        translation_key="shutdown",
    ),
]


Q10_BUTTON_DESCRIPTIONS = [
    ButtonEntityDescription(
        key="empty_dustbin",
        translation_key="empty_dustbin",
    ),
]


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: RoborockConfigEntry,
    async_add_entities: AddConfigEntryEntitiesCallback,
) -> None:
    """Set up Roborock button platform."""
    coordinators = config_entry.runtime_data

    @callback
    def async_add_coordinator_entities(
        coordinator: RoborockCoordinatorType,
    ) -> None:
        """Add entities for a specific coordinator."""
        entities: list[ButtonEntity] = []
        if isinstance(coordinator, RoborockDataUpdateCoordinator):
            entities.extend(
                RoborockButtonEntity(coordinator, description)
                for description in CONSUMABLE_BUTTON_DESCRIPTIONS
                if description.is_supported(coordinator)
            )

            async def async_add_routine_buttons() -> None:
                try:
                    routines = await coordinator.get_routines()
                except HomeAssistantError as err:
                    _LOGGER.error(
                        "Failed to get routines for %s: %s",
                        coordinator.device.name,
                        err,
                    )
                    return
                routine_entities = [
                    RoborockRoutineButtonEntity(
                        coordinator,
                        ButtonEntityDescription(
                            key=str(routine.id),
                            name=routine.name,
                        ),
                    )
                    for routine in routines
                ]
                async_add_entities(routine_entities)

            config_entry.async_create_background_task(
                hass,
                async_add_routine_buttons(),
                f"roborock_setup_routines_{coordinator.duid}",
            )
        elif isinstance(coordinator, RoborockWashingMachineUpdateCoordinator):
            entities.extend(
                RoborockButtonEntityA01(coordinator, description)
                for description in ZEO_BUTTON_DESCRIPTIONS
            )
        elif isinstance(coordinator, RoborockB01Q10UpdateCoordinator):
            entities.extend(
                RoborockQ10EmptyDustbinButtonEntity(coordinator, description)
                for description in Q10_BUTTON_DESCRIPTIONS
            )
        async_add_entities(entities)

    for coordinator in coordinators.values():
        async_add_coordinator_entities(coordinator)

    config_entry.async_on_unload(
        async_dispatcher_connect(
            hass,
            f"roborock_coordinator_added_{config_entry.entry_id}",
            async_add_coordinator_entities,
        )
    )


class RoborockButtonEntity(RoborockEntityV1, ButtonEntity):
    """A class to define Roborock button entities."""

    entity_description: RoborockButtonDescription

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinator,
        entity_description: RoborockButtonDescription,
    ) -> None:
        """Create a button entity."""
        device_info = (
            coordinator.dock_device_info
            if entity_description.is_dock_entity
            else coordinator.device_info
        )
        super().__init__(
            f"{entity_description.key}_{coordinator.duid_slug}",
            device_info,
            api=coordinator.properties_api.command,
        )
        self.entity_description = entity_description
        self._consumable = coordinator.properties_api.consumables

    @override
    async def async_press(self) -> None:
        """Press the button."""
        try:
            await self._consumable.reset_consumable(self.entity_description.attribute)
        except RoborockException as err:
            # This error message could be improved since it is fairly low level
            # and technical. Can add a more user friendly message with the
            # name of the attribute being reset.
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="command_failed",
                translation_placeholders={
                    "command": "RESET_CONSUMABLE",
                },
            ) from err


class RoborockRoutineButtonEntity(RoborockEntity, ButtonEntity):
    """A class to define Roborock routines button entities."""

    entity_description: ButtonEntityDescription

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinator,
        entity_description: ButtonEntityDescription,
    ) -> None:
        """Create a button entity."""
        super().__init__(
            f"{entity_description.key}_{coordinator.duid_slug}",
            coordinator.device_info,
        )
        self._routine_id = int(entity_description.key)
        self._coordinator = coordinator
        self.entity_description = entity_description

    @override
    async def async_press(self, **kwargs: Any) -> None:
        """Press the button."""
        await self._coordinator.execute_routines(self._routine_id)


class RoborockButtonEntityA01(RoborockCoordinatedEntityA01, ButtonEntity):
    """A class to define Roborock A01 button entities."""

    entity_description: RoborockButtonDescriptionA01

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinatorA01,
        entity_description: RoborockButtonDescriptionA01,
    ) -> None:
        """Create an A01 button entity."""
        self.entity_description = entity_description
        super().__init__(
            f"{entity_description.key}_{coordinator.duid_slug}", coordinator
        )

    @override
    async def async_press(self) -> None:
        """Press the button."""
        try:
            await self.coordinator.api.set_value(  # type: ignore[attr-defined]
                self.entity_description.data_protocol,
                1,
            )
        except RoborockException as err:
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="button_press_failed",
            ) from err
        finally:
            await self.coordinator.async_request_refresh()


class RoborockQ10EmptyDustbinButtonEntity(
    RoborockCoordinatedEntityB01Q10, ButtonEntity
):
    """A class to define Q10 empty dustbin button entity."""

    entity_description: ButtonEntityDescription
    coordinator: RoborockB01Q10UpdateCoordinator

    def __init__(
        self,
        coordinator: RoborockB01Q10UpdateCoordinator,
        entity_description: ButtonEntityDescription,
    ) -> None:
        """Create a Q10 empty dustbin button entity."""
        self.entity_description = entity_description
        super().__init__(
            f"{entity_description.key}_{coordinator.duid_slug}",
            coordinator,
        )

    @override
    async def async_press(self, **kwargs: Any) -> None:
        """Press the button to empty dustbin."""
        try:
            await self.coordinator.api.vacuum.empty_dustbin()
        except RoborockException as err:
            raise HomeAssistantError(
                translation_domain=DOMAIN,
                translation_key="command_failed",
                translation_placeholders={
                    "command": "empty_dustbin",
                },
            ) from err