core/homeassistant/components/switchbot/entity.py

138 lines
4.8 KiB
Python

"""An abstract class common to all Switchbot entities."""
from __future__ import annotations
from collections.abc import Callable, Coroutine, Mapping
import logging
from typing import Any, Concatenate
from switchbot import Switchbot, SwitchbotDevice
from switchbot.devices.device import SwitchbotOperationError
from homeassistant.components.bluetooth.passive_update_coordinator import (
PassiveBluetoothCoordinatorEntity,
)
from homeassistant.const import ATTR_CONNECTIONS
from homeassistant.core import callback
from homeassistant.exceptions import HomeAssistantError
from homeassistant.helpers import device_registry as dr
from homeassistant.helpers.device_registry import DeviceInfo
from homeassistant.helpers.entity import ToggleEntity
from .const import DOMAIN, MANUFACTURER
from .coordinator import SwitchbotDataUpdateCoordinator
_LOGGER = logging.getLogger(__name__)
class SwitchbotEntity(
PassiveBluetoothCoordinatorEntity[SwitchbotDataUpdateCoordinator]
):
"""Generic entity encapsulating common features of Switchbot device."""
_device: SwitchbotDevice
_attr_has_entity_name = True
def __init__(self, coordinator: SwitchbotDataUpdateCoordinator) -> None:
"""Initialize the entity."""
super().__init__(coordinator)
self._device = coordinator.device
self._last_run_success: bool | None = None
self._address = coordinator.ble_device.address
self._attr_unique_id = coordinator.base_unique_id
self._attr_device_info = DeviceInfo(
connections={(dr.CONNECTION_BLUETOOTH, self._address)},
manufacturer=MANUFACTURER,
model=coordinator.model, # Sometimes the modelName is missing from the advertisement data
name=coordinator.device_name,
)
if ":" not in self._address:
# MacOS Bluetooth addresses are not mac addresses
return
# If the bluetooth address is also a mac address,
# add this connection as well to prevent a new device
# entry from being created when upgrading from a previous
# version of the integration.
self._attr_device_info[ATTR_CONNECTIONS].add(
(dr.CONNECTION_NETWORK_MAC, self._address)
)
@property
def parsed_data(self) -> dict[str, Any]:
"""Return parsed device data for this entity."""
return self.coordinator.device.parsed_data
@property
def extra_state_attributes(self) -> Mapping[str, Any]:
"""Return the state attributes."""
return {"last_run_success": self._last_run_success}
@callback
def _async_update_attrs(self) -> None:
"""Update the entity attributes."""
@callback
def _handle_coordinator_update(self) -> None:
"""Handle data update."""
self._async_update_attrs()
self.async_write_ha_state()
async def async_added_to_hass(self) -> None:
"""Register callbacks."""
self.async_on_remove(self._device.subscribe(self._handle_coordinator_update))
return await super().async_added_to_hass()
async def async_update(self) -> None:
"""Update the entity.
Only used by the generic entity update service.
"""
await self._device.update()
def exception_handler[_EntityT: SwitchbotEntity, **_P](
func: Callable[Concatenate[_EntityT, _P], Coroutine[Any, Any, Any]],
) -> Callable[Concatenate[_EntityT, _P], Coroutine[Any, Any, None]]:
"""Decorate Switchbot calls to handle exceptions..
A decorator that wraps the passed in function, catches Switchbot errors.
"""
async def handler(self: _EntityT, *args: _P.args, **kwargs: _P.kwargs) -> None:
try:
await func(self, *args, **kwargs)
except SwitchbotOperationError as error:
raise HomeAssistantError(
translation_domain=DOMAIN,
translation_key="operation_error",
translation_placeholders={"error": str(error)},
) from error
return handler
class SwitchbotSwitchedEntity(SwitchbotEntity, ToggleEntity):
"""Base class for Switchbot entities that can be turned on and off."""
_device: Switchbot
@exception_handler
async def async_turn_on(self, **kwargs: Any) -> None:
"""Turn device on."""
_LOGGER.debug("Turn Switchbot device on %s", self._address)
self._last_run_success = bool(await self._device.turn_on())
if self._last_run_success:
self._attr_is_on = True
self.async_write_ha_state()
@exception_handler
async def async_turn_off(self, **kwargs: Any) -> None:
"""Turn device off."""
_LOGGER.debug("Turn Switchbot device off %s", self._address)
self._last_run_success = bool(await self._device.turn_off())
if self._last_run_success:
self._attr_is_on = False
self.async_write_ha_state()