"""Component providing select entities for UniFi Protect."""
from __future__ import annotations

from collections.abc import Callable
from dataclasses import dataclass
from enum import Enum
import logging
from typing import Any, Final

from pyunifiprotect.api import ProtectApiClient
from pyunifiprotect.data import (
    Camera,
    ChimeType,
    DoorbellMessageType,
    Doorlock,
    IRLEDMode,
    Light,
    LightModeEnableType,
    LightModeType,
    MountType,
    ProtectAdoptableDeviceModel,
    ProtectModelWithId,
    RecordingMode,
    Sensor,
    Viewer,
)

from homeassistant.components.select import SelectEntity, SelectEntityDescription
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import EntityCategory
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddEntitiesCallback

from .const import DISPATCH_ADOPT, DOMAIN, TYPE_EMPTY_VALUE
from .data import ProtectData
from .entity import ProtectDeviceEntity, async_all_device_entities
from .models import PermRequired, ProtectSetableKeysMixin, T
from .utils import async_dispatch_id as _ufpd, async_get_light_motion_current

_LOGGER = logging.getLogger(__name__)
_KEY_LIGHT_MOTION = "light_motion"

INFRARED_MODES = [
    {"id": IRLEDMode.AUTO.value, "name": "Auto"},
    {"id": IRLEDMode.ON.value, "name": "Always Enable"},
    {"id": IRLEDMode.AUTO_NO_LED.value, "name": "Auto (Filter Only, no LED's)"},
    {"id": IRLEDMode.OFF.value, "name": "Always Disable"},
]

CHIME_TYPES = [
    {"id": ChimeType.NONE.value, "name": "None"},
    {"id": ChimeType.MECHANICAL.value, "name": "Mechanical"},
    {"id": ChimeType.DIGITAL.value, "name": "Digital"},
]

MOUNT_TYPES = [
    {"id": MountType.NONE.value, "name": "None"},
    {"id": MountType.DOOR.value, "name": "Door"},
    {"id": MountType.WINDOW.value, "name": "Window"},
    {"id": MountType.GARAGE.value, "name": "Garage"},
    {"id": MountType.LEAK.value, "name": "Leak"},
]

LIGHT_MODE_MOTION = "On Motion - Always"
LIGHT_MODE_MOTION_DARK = "On Motion - When Dark"
LIGHT_MODE_DARK = "When Dark"
LIGHT_MODE_OFF = "Manual"
LIGHT_MODES = [LIGHT_MODE_MOTION, LIGHT_MODE_DARK, LIGHT_MODE_OFF]

LIGHT_MODE_TO_SETTINGS = {
    LIGHT_MODE_MOTION: (LightModeType.MOTION.value, LightModeEnableType.ALWAYS.value),
    LIGHT_MODE_MOTION_DARK: (
        LightModeType.MOTION.value,
        LightModeEnableType.DARK.value,
    ),
    LIGHT_MODE_DARK: (LightModeType.WHEN_DARK.value, LightModeEnableType.DARK.value),
    LIGHT_MODE_OFF: (LightModeType.MANUAL.value, None),
}

MOTION_MODE_TO_LIGHT_MODE = [
    {"id": LightModeType.MOTION.value, "name": LIGHT_MODE_MOTION},
    {"id": f"{LightModeType.MOTION.value}Dark", "name": LIGHT_MODE_MOTION_DARK},
    {"id": LightModeType.WHEN_DARK.value, "name": LIGHT_MODE_DARK},
    {"id": LightModeType.MANUAL.value, "name": LIGHT_MODE_OFF},
]

DEVICE_RECORDING_MODES = [
    {"id": mode.value, "name": mode.value.title()} for mode in list(RecordingMode)
]

DEVICE_CLASS_LCD_MESSAGE: Final = "unifiprotect__lcd_message"


@dataclass
class ProtectSelectEntityDescription(
    ProtectSetableKeysMixin[T], SelectEntityDescription
):
    """Describes UniFi Protect Select entity."""

    ufp_options: list[dict[str, Any]] | None = None
    ufp_options_fn: Callable[[ProtectApiClient], list[dict[str, Any]]] | None = None
    ufp_enum_type: type[Enum] | None = None


def _get_viewer_options(api: ProtectApiClient) -> list[dict[str, Any]]:
    return [
        {"id": item.id, "name": item.name} for item in api.bootstrap.liveviews.values()
    ]


def _get_doorbell_options(api: ProtectApiClient) -> list[dict[str, Any]]:
    default_message = api.bootstrap.nvr.doorbell_settings.default_message_text
    messages = api.bootstrap.nvr.doorbell_settings.all_messages
    built_messages: list[dict[str, str]] = []

    for item in messages:
        msg_type = item.type.value
        if item.type == DoorbellMessageType.CUSTOM_MESSAGE:
            msg_type = f"{DoorbellMessageType.CUSTOM_MESSAGE.value}:{item.text}"

        built_messages.append({"id": msg_type, "name": item.text})

    return [
        {"id": "", "name": f"Default Message ({default_message})"},
        *built_messages,
    ]


def _get_paired_camera_options(api: ProtectApiClient) -> list[dict[str, Any]]:
    options = [{"id": TYPE_EMPTY_VALUE, "name": "Not Paired"}]
    for camera in api.bootstrap.cameras.values():
        options.append({"id": camera.id, "name": camera.display_name or camera.type})

    return options


def _get_viewer_current(obj: Viewer) -> str:
    return obj.liveview_id


def _get_doorbell_current(obj: Camera) -> str | None:
    if obj.lcd_message is None:
        return None
    return obj.lcd_message.text


async def _set_light_mode(obj: Light, mode: str) -> None:
    lightmode, timing = LIGHT_MODE_TO_SETTINGS[mode]
    await obj.set_light_settings(
        LightModeType(lightmode),
        enable_at=None if timing is None else LightModeEnableType(timing),
    )


async def _set_paired_camera(obj: Light | Sensor | Doorlock, camera_id: str) -> None:
    if camera_id == TYPE_EMPTY_VALUE:
        camera: Camera | None = None
    else:
        camera = obj.api.bootstrap.cameras.get(camera_id)
    await obj.set_paired_camera(camera)


async def _set_doorbell_message(obj: Camera, message: str) -> None:
    if message.startswith(DoorbellMessageType.CUSTOM_MESSAGE.value):
        message = message.split(":")[-1]
        await obj.set_lcd_text(DoorbellMessageType.CUSTOM_MESSAGE, text=message)
    elif message == TYPE_EMPTY_VALUE:
        await obj.set_lcd_text(None)
    else:
        await obj.set_lcd_text(DoorbellMessageType(message))


async def _set_liveview(obj: Viewer, liveview_id: str) -> None:
    liveview = obj.api.bootstrap.liveviews[liveview_id]
    await obj.set_liveview(liveview)


CAMERA_SELECTS: tuple[ProtectSelectEntityDescription, ...] = (
    ProtectSelectEntityDescription(
        key="recording_mode",
        name="Recording Mode",
        icon="mdi:video-outline",
        entity_category=EntityCategory.CONFIG,
        ufp_options=DEVICE_RECORDING_MODES,
        ufp_enum_type=RecordingMode,
        ufp_value="recording_settings.mode",
        ufp_set_method="set_recording_mode",
        ufp_perm=PermRequired.WRITE,
    ),
    ProtectSelectEntityDescription(
        key="infrared",
        name="Infrared Mode",
        icon="mdi:circle-opacity",
        entity_category=EntityCategory.CONFIG,
        ufp_required_field="feature_flags.has_led_ir",
        ufp_options=INFRARED_MODES,
        ufp_enum_type=IRLEDMode,
        ufp_value="isp_settings.ir_led_mode",
        ufp_set_method="set_ir_led_model",
        ufp_perm=PermRequired.WRITE,
    ),
    ProtectSelectEntityDescription[Camera](
        key="doorbell_text",
        name="Doorbell Text",
        icon="mdi:card-text",
        entity_category=EntityCategory.CONFIG,
        device_class=DEVICE_CLASS_LCD_MESSAGE,
        ufp_required_field="feature_flags.has_lcd_screen",
        ufp_value_fn=_get_doorbell_current,
        ufp_options_fn=_get_doorbell_options,
        ufp_set_method_fn=_set_doorbell_message,
        ufp_perm=PermRequired.WRITE,
    ),
    ProtectSelectEntityDescription(
        key="chime_type",
        name="Chime Type",
        icon="mdi:bell",
        entity_category=EntityCategory.CONFIG,
        ufp_required_field="feature_flags.has_chime",
        ufp_options=CHIME_TYPES,
        ufp_enum_type=ChimeType,
        ufp_value="chime_type",
        ufp_set_method="set_chime_type",
        ufp_perm=PermRequired.WRITE,
    ),
)

LIGHT_SELECTS: tuple[ProtectSelectEntityDescription, ...] = (
    ProtectSelectEntityDescription[Light](
        key=_KEY_LIGHT_MOTION,
        name="Light Mode",
        icon="mdi:spotlight",
        entity_category=EntityCategory.CONFIG,
        ufp_options=MOTION_MODE_TO_LIGHT_MODE,
        ufp_value_fn=async_get_light_motion_current,
        ufp_set_method_fn=_set_light_mode,
        ufp_perm=PermRequired.WRITE,
    ),
    ProtectSelectEntityDescription[Light](
        key="paired_camera",
        name="Paired Camera",
        icon="mdi:cctv",
        entity_category=EntityCategory.CONFIG,
        ufp_value="camera_id",
        ufp_options_fn=_get_paired_camera_options,
        ufp_set_method_fn=_set_paired_camera,
        ufp_perm=PermRequired.WRITE,
    ),
)

SENSE_SELECTS: tuple[ProtectSelectEntityDescription, ...] = (
    ProtectSelectEntityDescription(
        key="mount_type",
        name="Mount Type",
        icon="mdi:screwdriver",
        entity_category=EntityCategory.CONFIG,
        ufp_options=MOUNT_TYPES,
        ufp_enum_type=MountType,
        ufp_value="mount_type",
        ufp_set_method="set_mount_type",
        ufp_perm=PermRequired.WRITE,
    ),
    ProtectSelectEntityDescription[Sensor](
        key="paired_camera",
        name="Paired Camera",
        icon="mdi:cctv",
        entity_category=EntityCategory.CONFIG,
        ufp_value="camera_id",
        ufp_options_fn=_get_paired_camera_options,
        ufp_set_method_fn=_set_paired_camera,
        ufp_perm=PermRequired.WRITE,
    ),
)

DOORLOCK_SELECTS: tuple[ProtectSelectEntityDescription, ...] = (
    ProtectSelectEntityDescription[Doorlock](
        key="paired_camera",
        name="Paired Camera",
        icon="mdi:cctv",
        entity_category=EntityCategory.CONFIG,
        ufp_value="camera_id",
        ufp_options_fn=_get_paired_camera_options,
        ufp_set_method_fn=_set_paired_camera,
        ufp_perm=PermRequired.WRITE,
    ),
)

VIEWER_SELECTS: tuple[ProtectSelectEntityDescription, ...] = (
    ProtectSelectEntityDescription[Viewer](
        key="viewer",
        name="Liveview",
        icon="mdi:view-dashboard",
        entity_category=None,
        ufp_options_fn=_get_viewer_options,
        ufp_value_fn=_get_viewer_current,
        ufp_set_method_fn=_set_liveview,
        ufp_perm=PermRequired.WRITE,
    ),
)


async def async_setup_entry(
    hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
    """Set up number entities for UniFi Protect integration."""
    data: ProtectData = hass.data[DOMAIN][entry.entry_id]

    async def _add_new_device(device: ProtectAdoptableDeviceModel) -> None:
        entities = async_all_device_entities(
            data,
            ProtectSelects,
            camera_descs=CAMERA_SELECTS,
            light_descs=LIGHT_SELECTS,
            sense_descs=SENSE_SELECTS,
            viewer_descs=VIEWER_SELECTS,
            lock_descs=DOORLOCK_SELECTS,
            ufp_device=device,
        )
        async_add_entities(entities)

    entry.async_on_unload(
        async_dispatcher_connect(hass, _ufpd(entry, DISPATCH_ADOPT), _add_new_device)
    )

    entities: list[ProtectDeviceEntity] = async_all_device_entities(
        data,
        ProtectSelects,
        camera_descs=CAMERA_SELECTS,
        light_descs=LIGHT_SELECTS,
        sense_descs=SENSE_SELECTS,
        viewer_descs=VIEWER_SELECTS,
        lock_descs=DOORLOCK_SELECTS,
    )

    async_add_entities(entities)


class ProtectSelects(ProtectDeviceEntity, SelectEntity):
    """A UniFi Protect Select Entity."""

    device: Camera | Light | Viewer
    entity_description: ProtectSelectEntityDescription

    def __init__(
        self,
        data: ProtectData,
        device: Camera | Light | Viewer,
        description: ProtectSelectEntityDescription,
    ) -> None:
        """Initialize the unifi protect select entity."""
        self._async_set_options(data, description)
        super().__init__(data, device, description)
        self._attr_name = f"{self.device.display_name} {self.entity_description.name}"

    @callback
    def _async_update_device_from_protect(self, device: ProtectModelWithId) -> None:
        super()._async_update_device_from_protect(device)
        entity_description = self.entity_description
        # entities with categories are not exposed for voice
        # and safe to update dynamically
        if (
            entity_description.entity_category is not None
            and entity_description.ufp_options_fn is not None
        ):
            _LOGGER.debug(
                "Updating dynamic select options for %s", entity_description.name
            )
            self._async_set_options(self.data, entity_description)
        if (unifi_value := entity_description.get_ufp_value(device)) is None:
            unifi_value = TYPE_EMPTY_VALUE
        self._attr_current_option = self._unifi_to_hass_options.get(
            unifi_value, unifi_value
        )

    @callback
    def _async_set_options(
        self, data: ProtectData, description: ProtectSelectEntityDescription
    ) -> None:
        """Set options attributes from UniFi Protect device."""
        if (ufp_options := description.ufp_options) is not None:
            options = ufp_options
        else:
            assert description.ufp_options_fn is not None
            options = description.ufp_options_fn(data.api)

        self._attr_options = [item["name"] for item in options]
        self._hass_to_unifi_options = {item["name"]: item["id"] for item in options}
        self._unifi_to_hass_options = {item["id"]: item["name"] for item in options}

    async def async_select_option(self, option: str) -> None:
        """Change the Select Entity Option."""

        # Light Motion is a bit different
        if self.entity_description.key == _KEY_LIGHT_MOTION:
            assert self.entity_description.ufp_set_method_fn is not None
            await self.entity_description.ufp_set_method_fn(self.device, option)
            return

        unifi_value = self._hass_to_unifi_options[option]
        if self.entity_description.ufp_enum_type is not None:
            unifi_value = self.entity_description.ufp_enum_type(unifi_value)
        await self.entity_description.ufp_set(self.device, unifi_value)

    @callback
    def _async_updated_event(self, device: ProtectModelWithId) -> None:
        """Call back for incoming data that only writes when state has changed.

        Only the options, option, and available are ever updated for these
        entities, and since the websocket update for the device will trigger
        an update for all entities connected to the device, we want to avoid
        writing state unless something has actually changed.
        """
        previous_option = self._attr_current_option
        previous_options = self._attr_options
        previous_available = self._attr_available
        self._async_update_device_from_protect(device)
        if (
            self._attr_current_option != previous_option
            or self._attr_options != previous_options
            or self._attr_available != previous_available
        ):
            self.async_write_ha_state()