core/homeassistant/components/unifiprotect/entity.py

"""Shared Entity definition for UniFi Protect Integration."""

from __future__ import annotations

from collections.abc import Callable, Sequence
from functools import partial
import logging
from operator import attrgetter
from typing import TYPE_CHECKING

from uiprotect.data import (
    NVR,
    Event,
    ModelType,
    ProtectAdoptableDeviceModel,
    ProtectModelWithId,
    StateType,
)

from homeassistant.core import callback
import homeassistant.helpers.device_registry as dr
from homeassistant.helpers.device_registry import DeviceInfo
from homeassistant.helpers.entity import Entity, EntityDescription

from .const import (
    ATTR_EVENT_ID,
    ATTR_EVENT_SCORE,
    DEFAULT_ATTRIBUTION,
    DEFAULT_BRAND,
    DOMAIN,
)
from .data import ProtectData
from .models import PermRequired, ProtectEntityDescription, ProtectEventMixin

_LOGGER = logging.getLogger(__name__)


@callback
def _async_device_entities(
    data: ProtectData,
    klass: type[BaseProtectEntity],
    model_type: ModelType,
    descs: Sequence[ProtectEntityDescription],
    unadopted_descs: Sequence[ProtectEntityDescription] | None = None,
    ufp_device: ProtectAdoptableDeviceModel | None = None,
) -> list[BaseProtectEntity]:
    if not descs and not unadopted_descs:
        return []

    entities: list[BaseProtectEntity] = []
    devices = (
        [ufp_device]
        if ufp_device is not None
        else data.get_by_types({model_type}, ignore_unadopted=False)
    )
    auth_user = data.api.bootstrap.auth_user
    for device in devices:
        if TYPE_CHECKING:
            assert isinstance(device, ProtectAdoptableDeviceModel)
        if not device.is_adopted_by_us:
            if unadopted_descs:
                for description in unadopted_descs:
                    entities.append(
                        klass(
                            data,
                            device=device,
                            description=description,
                        )
                    )
                    _LOGGER.debug(
                        "Adding %s entity %s for %s",
                        klass.__name__,
                        description.name,
                        device.display_name,
                    )
            continue

        can_write = device.can_write(auth_user)
        for description in descs:
            if (perms := description.ufp_perm) is not None:
                if perms is PermRequired.WRITE and not can_write:
                    continue
                if perms is PermRequired.NO_WRITE and can_write:
                    continue
                if perms is PermRequired.DELETE and not device.can_delete(auth_user):
                    continue

            if not description.has_required(device):
                continue

            entities.append(
                klass(
                    data,
                    device=device,
                    description=description,
                )
            )
            _LOGGER.debug(
                "Adding %s entity %s for %s",
                klass.__name__,
                description.name,
                device.display_name,
            )

    return entities


_ALL_MODEL_TYPES = (
    ModelType.CAMERA,
    ModelType.LIGHT,
    ModelType.SENSOR,
    ModelType.VIEWPORT,
    ModelType.DOORLOCK,
    ModelType.CHIME,
)


@callback
def _combine_model_descs(
    model_type: ModelType,
    model_descriptions: dict[ModelType, Sequence[ProtectEntityDescription]] | None,
    all_descs: Sequence[ProtectEntityDescription] | None,
) -> list[ProtectEntityDescription]:
    """Combine all the descriptions with descriptions a model type."""
    descs: list[ProtectEntityDescription] = list(all_descs) if all_descs else []
    if model_descriptions and (model_descs := model_descriptions.get(model_type)):
        descs.extend(model_descs)
    return descs


@callback
def async_all_device_entities(
    data: ProtectData,
    klass: type[BaseProtectEntity],
    model_descriptions: dict[ModelType, Sequence[ProtectEntityDescription]]
    | None = None,
    all_descs: Sequence[ProtectEntityDescription] | None = None,
    unadopted_descs: list[ProtectEntityDescription] | None = None,
    ufp_device: ProtectAdoptableDeviceModel | None = None,
) -> list[BaseProtectEntity]:
    """Generate a list of all the device entities."""
    if ufp_device is None:
        entities: list[BaseProtectEntity] = []
        for model_type in _ALL_MODEL_TYPES:
            descs = _combine_model_descs(model_type, model_descriptions, all_descs)
            entities.extend(
                _async_device_entities(data, klass, model_type, descs, unadopted_descs)
            )
        return entities

    device_model_type = ufp_device.model
    assert device_model_type is not None
    descs = _combine_model_descs(device_model_type, model_descriptions, all_descs)
    return _async_device_entities(
        data, klass, device_model_type, descs, unadopted_descs, ufp_device
    )


class BaseProtectEntity(Entity):
    """Base class for UniFi protect entities."""

    device: ProtectAdoptableDeviceModel | NVR

    _attr_should_poll = False
    _attr_attribution = DEFAULT_ATTRIBUTION
    _state_attrs: tuple[str, ...] = ("_attr_available",)
    _attr_has_entity_name = True
    _async_get_ufp_enabled: Callable[[ProtectAdoptableDeviceModel], bool] | None = None

    def __init__(
        self,
        data: ProtectData,
        device: ProtectAdoptableDeviceModel | NVR,
        description: EntityDescription | None = None,
    ) -> None:
        """Initialize the entity."""
        super().__init__()
        self.data = data
        self.device = device

        if description is None:
            self._attr_unique_id = self.device.mac
            self._attr_name = None
        else:
            self.entity_description = description
            self._attr_unique_id = f"{self.device.mac}_{description.key}"
            if isinstance(description, ProtectEntityDescription):
                self._async_get_ufp_enabled = description.get_ufp_enabled

        self._async_set_device_info()
        self._async_update_device_from_protect(device)
        self._state_getters = tuple(
            partial(attrgetter(attr), self) for attr in self._state_attrs
        )

    async def async_update(self) -> None:
        """Update the entity.

        Only used by the generic entity update service.
        """
        await self.data.async_refresh()

    @callback
    def _async_set_device_info(self) -> None:
        self._attr_device_info = DeviceInfo(
            name=self.device.display_name,
            manufacturer=DEFAULT_BRAND,
            model=self.device.type,
            via_device=(DOMAIN, self.data.api.bootstrap.nvr.mac),
            sw_version=self.device.firmware_version,
            connections={(dr.CONNECTION_NETWORK_MAC, self.device.mac)},
            configuration_url=self.device.protect_url,
        )

    @callback
    def _async_update_device_from_protect(self, device: ProtectModelWithId) -> None:
        """Update Entity object from Protect device."""
        if TYPE_CHECKING:
            assert isinstance(device, ProtectAdoptableDeviceModel)

        if last_update_success := self.data.last_update_success:
            self.device = device

        async_get_ufp_enabled = self._async_get_ufp_enabled
        self._attr_available = (
            last_update_success
            and (
                device.state is StateType.CONNECTED
                or (not device.is_adopted_by_us and device.can_adopt)
            )
            and (not async_get_ufp_enabled or async_get_ufp_enabled(device))
        )

    @callback
    def _async_updated_event(self, device: ProtectAdoptableDeviceModel | NVR) -> None:
        """When device is updated from Protect."""
        previous_attrs = [getter() for getter in self._state_getters]
        self._async_update_device_from_protect(device)
        changed = False
        for idx, getter in enumerate(self._state_getters):
            if previous_attrs[idx] != getter():
                changed = True
                break

        if changed:
            if _LOGGER.isEnabledFor(logging.DEBUG):
                device_name = device.name or ""
                if hasattr(self, "entity_description") and self.entity_description.name:
                    device_name += f" {self.entity_description.name}"

                _LOGGER.debug(
                    "Updating state [%s (%s)] %s -> %s",
                    device_name,
                    device.mac,
                    previous_attrs,
                    tuple((getattr(self, attr)) for attr in self._state_attrs),
                )
            self.async_write_ha_state()

    async def async_added_to_hass(self) -> None:
        """When entity is added to hass."""
        await super().async_added_to_hass()
        self.async_on_remove(
            self.data.async_subscribe_device_id(
                self.device.mac, self._async_updated_event
            )
        )


class ProtectDeviceEntity(BaseProtectEntity):
    """Base class for UniFi protect entities."""

    device: ProtectAdoptableDeviceModel


class ProtectNVREntity(BaseProtectEntity):
    """Base class for unifi protect entities."""

    device: NVR

    @callback
    def _async_set_device_info(self) -> None:
        self._attr_device_info = DeviceInfo(
            connections={(dr.CONNECTION_NETWORK_MAC, self.device.mac)},
            identifiers={(DOMAIN, self.device.mac)},
            manufacturer=DEFAULT_BRAND,
            name=self.device.display_name,
            model=self.device.type,
            sw_version=str(self.device.version),
            configuration_url=self.device.api.base_url,
        )

    @callback
    def _async_update_device_from_protect(self, device: ProtectModelWithId) -> None:
        data = self.data
        if last_update_success := data.last_update_success:
            self.device = data.api.bootstrap.nvr

        self._attr_available = last_update_success


class EventEntityMixin(ProtectDeviceEntity):
    """Adds motion event attributes to sensor."""

    entity_description: ProtectEventMixin
    _unrecorded_attributes = frozenset({ATTR_EVENT_ID, ATTR_EVENT_SCORE})
    _event: Event | None = None

    @callback
    def _async_update_device_from_protect(self, device: ProtectModelWithId) -> None:
        if (event := self.entity_description.get_event_obj(device)) is None:
            self._attr_extra_state_attributes = {}
        else:
            self._attr_extra_state_attributes = {
                ATTR_EVENT_ID: event.id,
                ATTR_EVENT_SCORE: event.score,
            }
        self._event = event
        super()._async_update_device_from_protect(device)