"""Support for Roborock sensors."""

from __future__ import annotations

from collections.abc import Callable
from dataclasses import dataclass
import datetime
import logging

from roborock.data import (
    B01Props,
    DyadError,
    RoborockDockErrorCode,
    RoborockDockTypeCode,
    RoborockDyadStateCode,
    RoborockErrorCode,
    RoborockStateCode,
    WorkStatusMapping,
    ZeoError,
    ZeoState,
)
from roborock.roborock_message import RoborockDyadDataProtocol, RoborockZeoProtocol

from homeassistant.components.sensor import (
    SensorDeviceClass,
    SensorEntity,
    SensorEntityDescription,
    SensorStateClass,
)
from homeassistant.const import PERCENTAGE, EntityCategory, UnitOfArea, UnitOfTime
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
from homeassistant.helpers.typing import StateType

from .coordinator import (
    RoborockConfigEntry,
    RoborockDataUpdateCoordinator,
    RoborockDataUpdateCoordinatorA01,
    RoborockDataUpdateCoordinatorB01,
)
from .entity import (
    RoborockCoordinatedEntityA01,
    RoborockCoordinatedEntityB01,
    RoborockCoordinatedEntityV1,
    RoborockEntity,
)
from .models import DeviceState

_LOGGER = logging.getLogger(__name__)

PARALLEL_UPDATES = 0


@dataclass(frozen=True, kw_only=True)
class RoborockSensorDescription(SensorEntityDescription):
    """A class that describes Roborock sensors."""

    value_fn: Callable[[DeviceState], StateType | datetime.datetime]

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


@dataclass(frozen=True, kw_only=True)
class RoborockSensorDescriptionA01(SensorEntityDescription):
    """A class that describes Roborock sensors."""

    data_protocol: RoborockDyadDataProtocol | RoborockZeoProtocol


@dataclass(frozen=True, kw_only=True)
class RoborockSensorDescriptionB01(SensorEntityDescription):
    """A class that describes Roborock B01 sensors."""

    value_fn: Callable[[B01Props], StateType]


def _dock_error_value_fn(state: DeviceState) -> str | None:
    if (
        status := state.status.dock_error_status
    ) is not None and state.status.dock_type != RoborockDockTypeCode.no_dock:
        return status.name

    return None


SENSOR_DESCRIPTIONS = [
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        key="main_brush_time_left",
        device_class=SensorDeviceClass.DURATION,
        translation_key="main_brush_time_left",
        value_fn=lambda data: data.consumable.main_brush_time_left,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        key="side_brush_time_left",
        device_class=SensorDeviceClass.DURATION,
        translation_key="side_brush_time_left",
        value_fn=lambda data: data.consumable.side_brush_time_left,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        key="filter_time_left",
        device_class=SensorDeviceClass.DURATION,
        translation_key="filter_time_left",
        value_fn=lambda data: data.consumable.filter_time_left,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.HOURS,
        key="cleaning_brush_time_left",
        device_class=SensorDeviceClass.DURATION,
        translation_key="cleaning_brush_time_left",
        value_fn=lambda data: data.consumable.cleaning_brush_time_left,
        entity_category=EntityCategory.DIAGNOSTIC,
        is_dock_entity=True,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.HOURS,
        key="strainer_time_left",
        device_class=SensorDeviceClass.DURATION,
        translation_key="strainer_time_left",
        value_fn=lambda data: data.consumable.strainer_time_left,
        entity_category=EntityCategory.DIAGNOSTIC,
        is_dock_entity=True,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        key="sensor_time_left",
        device_class=SensorDeviceClass.DURATION,
        translation_key="sensor_time_left",
        value_fn=lambda data: data.consumable.sensor_time_left,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.MINUTES,
        key="cleaning_time",
        translation_key="cleaning_time",
        device_class=SensorDeviceClass.DURATION,
        value_fn=lambda data: data.status.clean_time,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        key="total_cleaning_time",
        translation_key="total_cleaning_time",
        device_class=SensorDeviceClass.DURATION,
        value_fn=lambda data: data.clean_summary.clean_time,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        key="total_cleaning_count",
        translation_key="total_cleaning_count",
        state_class=SensorStateClass.TOTAL_INCREASING,
        value_fn=lambda data: data.clean_summary.clean_count,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescription(
        key="status",
        device_class=SensorDeviceClass.ENUM,
        translation_key="status",
        value_fn=lambda data: data.status.state_name,
        entity_category=EntityCategory.DIAGNOSTIC,
        options=RoborockStateCode.keys(),
    ),
    RoborockSensorDescription(
        key="cleaning_area",
        translation_key="cleaning_area",
        value_fn=lambda data: data.status.square_meter_clean_area,
        entity_category=EntityCategory.DIAGNOSTIC,
        native_unit_of_measurement=UnitOfArea.SQUARE_METERS,
    ),
    RoborockSensorDescription(
        key="total_cleaning_area",
        translation_key="total_cleaning_area",
        value_fn=lambda data: data.clean_summary.square_meter_clean_area,
        entity_category=EntityCategory.DIAGNOSTIC,
        native_unit_of_measurement=UnitOfArea.SQUARE_METERS,
    ),
    RoborockSensorDescription(
        key="vacuum_error",
        translation_key="vacuum_error",
        device_class=SensorDeviceClass.ENUM,
        value_fn=lambda data: data.status.error_code_name,
        entity_category=EntityCategory.DIAGNOSTIC,
        options=RoborockErrorCode.keys(),
    ),
    RoborockSensorDescription(
        key="battery",
        value_fn=lambda data: data.status.battery,
        entity_category=EntityCategory.DIAGNOSTIC,
        native_unit_of_measurement=PERCENTAGE,
        device_class=SensorDeviceClass.BATTERY,
    ),
    RoborockSensorDescription(
        key="last_clean_start",
        translation_key="last_clean_start",
        value_fn=lambda data: (
            data.clean_summary.last_clean_record.begin_datetime
            if data.clean_summary.last_clean_record is not None
            else None
        ),
        entity_category=EntityCategory.DIAGNOSTIC,
        device_class=SensorDeviceClass.TIMESTAMP,
    ),
    RoborockSensorDescription(
        key="last_clean_end",
        translation_key="last_clean_end",
        value_fn=lambda data: (
            data.clean_summary.last_clean_record.end_datetime
            if data.clean_summary.last_clean_record is not None
            else None
        ),
        entity_category=EntityCategory.DIAGNOSTIC,
        device_class=SensorDeviceClass.TIMESTAMP,
    ),
    # Only available on some newer models
    RoborockSensorDescription(
        key="clean_percent",
        translation_key="clean_percent",
        value_fn=lambda data: data.status.clean_percent,
        entity_category=EntityCategory.DIAGNOSTIC,
        native_unit_of_measurement=PERCENTAGE,
    ),
    # Only available with more than just the basic dock
    RoborockSensorDescription(
        key="dock_error",
        translation_key="dock_error",
        value_fn=_dock_error_value_fn,
        entity_category=EntityCategory.DIAGNOSTIC,
        device_class=SensorDeviceClass.ENUM,
        options=RoborockDockErrorCode.keys(),
        is_dock_entity=True,
    ),
    RoborockSensorDescription(
        key="mop_clean_remaining",
        native_unit_of_measurement=UnitOfTime.SECONDS,
        device_class=SensorDeviceClass.DURATION,
        value_fn=lambda data: data.status.rdt,
        translation_key="mop_drying_remaining_time",
        entity_category=EntityCategory.DIAGNOSTIC,
        is_dock_entity=True,
    ),
]

A01_SENSOR_DESCRIPTIONS: list[RoborockSensorDescriptionA01] = [
    RoborockSensorDescriptionA01(
        key="status",
        data_protocol=RoborockDyadDataProtocol.STATUS,
        translation_key="a01_status",
        entity_category=EntityCategory.DIAGNOSTIC,
        device_class=SensorDeviceClass.ENUM,
        options=RoborockDyadStateCode.keys(),
    ),
    RoborockSensorDescriptionA01(
        key="battery",
        data_protocol=RoborockDyadDataProtocol.POWER,
        entity_category=EntityCategory.DIAGNOSTIC,
        native_unit_of_measurement=PERCENTAGE,
        device_class=SensorDeviceClass.BATTERY,
    ),
    RoborockSensorDescriptionA01(
        key="filter_time_left",
        data_protocol=RoborockDyadDataProtocol.MESH_LEFT,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        native_unit_of_measurement=UnitOfTime.SECONDS,
        device_class=SensorDeviceClass.DURATION,
        translation_key="filter_time_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionA01(
        key="brush_remaining",
        data_protocol=RoborockDyadDataProtocol.BRUSH_LEFT,
        native_unit_of_measurement=UnitOfTime.SECONDS,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        device_class=SensorDeviceClass.DURATION,
        translation_key="brush_remaining",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionA01(
        key="error",
        data_protocol=RoborockDyadDataProtocol.ERROR,
        device_class=SensorDeviceClass.ENUM,
        translation_key="a01_error",
        entity_category=EntityCategory.DIAGNOSTIC,
        options=DyadError.keys(),
    ),
    RoborockSensorDescriptionA01(
        key="total_cleaning_time",
        native_unit_of_measurement=UnitOfTime.MINUTES,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        data_protocol=RoborockDyadDataProtocol.TOTAL_RUN_TIME,
        device_class=SensorDeviceClass.DURATION,
        translation_key="total_cleaning_time",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionA01(
        key="state",
        data_protocol=RoborockZeoProtocol.STATE,
        translation_key="zeo_state",
        entity_category=EntityCategory.DIAGNOSTIC,
        device_class=SensorDeviceClass.ENUM,
        options=ZeoState.keys(),
    ),
    RoborockSensorDescriptionA01(
        key="countdown",
        native_unit_of_measurement=UnitOfTime.MINUTES,
        data_protocol=RoborockZeoProtocol.COUNTDOWN,
        device_class=SensorDeviceClass.DURATION,
        translation_key="countdown",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionA01(
        key="washing_left",
        native_unit_of_measurement=UnitOfTime.MINUTES,
        data_protocol=RoborockZeoProtocol.WASHING_LEFT,
        device_class=SensorDeviceClass.DURATION,
        translation_key="washing_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionA01(
        key="error",
        data_protocol=RoborockZeoProtocol.ERROR,
        device_class=SensorDeviceClass.ENUM,
        translation_key="zeo_error",
        entity_category=EntityCategory.DIAGNOSTIC,
        options=ZeoError.keys(),
    ),
]

Q7_B01_SENSOR_DESCRIPTIONS = [
    RoborockSensorDescriptionB01(
        key="q7_status",
        value_fn=lambda data: data.status_name,
        translation_key="q7_status",
        entity_category=EntityCategory.DIAGNOSTIC,
        device_class=SensorDeviceClass.ENUM,
        options=WorkStatusMapping.keys(),
    ),
    RoborockSensorDescriptionB01(
        key="main_brush_time_left",
        value_fn=lambda data: data.main_brush_time_left,
        device_class=SensorDeviceClass.DURATION,
        native_unit_of_measurement=UnitOfTime.MINUTES,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        translation_key="main_brush_time_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionB01(
        key="side_brush_time_left",
        value_fn=lambda data: data.side_brush_time_left,
        device_class=SensorDeviceClass.DURATION,
        native_unit_of_measurement=UnitOfTime.MINUTES,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        translation_key="side_brush_time_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionB01(
        key="filter_time_left",
        value_fn=lambda data: data.filter_time_left,
        device_class=SensorDeviceClass.DURATION,
        native_unit_of_measurement=UnitOfTime.MINUTES,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        translation_key="filter_time_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionB01(
        key="sensor_time_left",
        value_fn=lambda data: data.sensor_dirty_time_left,
        device_class=SensorDeviceClass.DURATION,
        native_unit_of_measurement=UnitOfTime.MINUTES,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        translation_key="sensor_time_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    RoborockSensorDescriptionB01(
        key="mop_life_time_left",
        value_fn=lambda data: data.mop_life_time_left,
        device_class=SensorDeviceClass.DURATION,
        native_unit_of_measurement=UnitOfTime.MINUTES,
        suggested_unit_of_measurement=UnitOfTime.HOURS,
        translation_key="mop_life_time_left",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
]


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

    entities: list[RoborockEntity] = [
        RoborockSensorEntity(
            coordinator,
            description,
        )
        for coordinator in coordinators.v1
        for description in SENSOR_DESCRIPTIONS
        if description.value_fn(coordinator.data) is not None
    ]
    entities.extend(RoborockCurrentRoom(coordinator) for coordinator in coordinators.v1)
    entities.extend(
        RoborockSensorEntityA01(
            coordinator,
            description,
        )
        for coordinator in coordinators.a01
        for description in A01_SENSOR_DESCRIPTIONS
        if description.data_protocol in coordinator.request_protocols
    )
    entities.extend(
        RoborockSensorEntityB01(coordinator, description)
        for coordinator in coordinators.b01
        for description in Q7_B01_SENSOR_DESCRIPTIONS
        if description.value_fn(coordinator.data) is not None
    )
    async_add_entities(entities)


class RoborockSensorEntity(RoborockCoordinatedEntityV1, SensorEntity):
    """Representation of a Roborock sensor."""

    entity_description: RoborockSensorDescription

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

    @property
    def native_value(self) -> StateType | datetime.datetime:
        """Return the value reported by the sensor."""
        return self.entity_description.value_fn(self.coordinator.data)


class RoborockCurrentRoom(RoborockCoordinatedEntityV1, SensorEntity):
    """Representation of a Current Room Sensor."""

    _attr_device_class = SensorDeviceClass.ENUM
    _attr_translation_key = "current_room"
    _attr_entity_category = EntityCategory.DIAGNOSTIC

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinator,
    ) -> None:
        """Initialize the entity."""
        super().__init__(
            f"current_room_{coordinator.duid_slug}",
            coordinator,
            is_dock_entity=False,
        )
        self._home_trait = coordinator.properties_api.home
        self._map_content_trait = coordinator.properties_api.map_content

    @property
    def options(self) -> list[str]:
        """Return the currently valid rooms."""
        if self._home_trait.current_map_data is not None:
            return [room.name for room in self._home_trait.current_map_data.rooms]
        return []

    @property
    def native_value(self) -> str | None:
        """Return the value reported by the sensor."""
        if (
            self._home_trait.current_map_data is not None
            and self._map_content_trait.map_data is not None
            and self._map_content_trait.map_data.vacuum_room is not None
        ):
            for room in self._home_trait.current_map_data.rooms:
                if room.segment_id == self._map_content_trait.map_data.vacuum_room:
                    return room.name
        return None


class RoborockSensorEntityA01(RoborockCoordinatedEntityA01, SensorEntity):
    """Representation of a A01 Roborock sensor."""

    entity_description: RoborockSensorDescriptionA01

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinatorA01,
        description: RoborockSensorDescriptionA01,
    ) -> None:
        """Initialize the entity."""
        self.entity_description = description
        super().__init__(f"{description.key}_{coordinator.duid_slug}", coordinator)

    @property
    def native_value(self) -> StateType:
        """Return the value reported by the sensor."""
        return self.coordinator.data[self.entity_description.data_protocol]


class RoborockSensorEntityB01(RoborockCoordinatedEntityB01, SensorEntity):
    """Representation of a B01 Roborock sensor."""

    entity_description: RoborockSensorDescriptionB01

    def __init__(
        self,
        coordinator: RoborockDataUpdateCoordinatorB01,
        description: RoborockSensorDescriptionB01,
    ) -> None:
        """Initialize the entity."""
        self.entity_description = description
        super().__init__(f"{description.key}_{coordinator.duid_slug}", coordinator)

    @property
    def native_value(self) -> StateType:
        """Return the value reported by the sensor."""
        return self.entity_description.value_fn(self.coordinator.data)