Add dormakaba_dkey battery sensor (#87975)

* Add dormakaba_dkey battery sensor

* Update .coveragerc

* Apply suggestion from code review

* Update .coveragerc

.coveragerc

@@ -213,7 +213,9 @@ omit =
     homeassistant/components/doorbird/entity.py
     homeassistant/components/doorbird/util.py
     homeassistant/components/dormakaba_dkey/__init__.py
+    homeassistant/components/dormakaba_dkey/entity.py
     homeassistant/components/dormakaba_dkey/lock.py
+    homeassistant/components/dormakaba_dkey/sensor.py
     homeassistant/components/dovado/*
     homeassistant/components/downloader/*
     homeassistant/components/dsmr_reader/__init__.py

homeassistant/components/dormakaba_dkey/__init__.py

@@ -19,7 +19,7 @@ from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, Upda
 from .const import CONF_ASSOCIATION_DATA, DOMAIN, UPDATE_SECONDS
 from .models import DormakabaDkeyData
 
-PLATFORMS: list[Platform] = [Platform.LOCK]
+PLATFORMS: list[Platform] = [Platform.LOCK, Platform.SENSOR]
 
 _LOGGER = logging.getLogger(__name__)
 

homeassistant/components/dormakaba_dkey/entity.py

@@ -0,0 +1,56 @@
+"""Dormakaba dKey integration base entity."""
+from __future__ import annotations
+
+import abc
+
+from py_dormakaba_dkey import DKEYLock
+from py_dormakaba_dkey.commands import Notifications
+
+from homeassistant.core import callback
+from homeassistant.helpers import device_registry as dr
+from homeassistant.helpers.entity import DeviceInfo
+from homeassistant.helpers.update_coordinator import (
+    CoordinatorEntity,
+    DataUpdateCoordinator,
+)
+
+
+class DormakabaDkeyEntity(CoordinatorEntity[DataUpdateCoordinator[None]]):
+    """Dormakaba dKey base entity."""
+
+    _attr_has_entity_name = True
+
+    def __init__(
+        self, coordinator: DataUpdateCoordinator[None], lock: DKEYLock
+    ) -> None:
+        """Initialize a Dormakaba dKey entity."""
+        super().__init__(coordinator)
+        self._lock = lock
+        self._attr_device_info = DeviceInfo(
+            name=lock.device_info.device_name or lock.device_info.device_id,
+            model="MTL 9291",
+            sw_version=lock.device_info.sw_version,
+            connections={(dr.CONNECTION_BLUETOOTH, lock.address)},
+        )
+        self._async_update_attrs()
+
+    @abc.abstractmethod
+    @callback
+    def _async_update_attrs(self) -> None:
+        """Handle updating _attr values."""
+
+    @callback
+    def _handle_coordinator_update(self) -> None:
+        """Handle data update."""
+        self._async_update_attrs()
+        self.async_write_ha_state()
+
+    @callback
+    def _handle_state_update(self, update: Notifications) -> None:
+        """Handle data update."""
+        self.coordinator.async_set_updated_data(None)
+
+    async def async_added_to_hass(self) -> None:
+        """Register callbacks."""
+        self.async_on_remove(self._lock.register_callback(self._handle_state_update))
+        return await super().async_added_to_hass()

homeassistant/components/dormakaba_dkey/lock.py

@@ -4,20 +4,16 @@ from __future__ import annotations
 from typing import Any
 
 from py_dormakaba_dkey import DKEYLock
-from py_dormakaba_dkey.commands import Notifications, UnlockStatus
+from py_dormakaba_dkey.commands import UnlockStatus
 
 from homeassistant.components.lock import LockEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant, callback
-from homeassistant.helpers import device_registry as dr
-from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.update_coordinator import (
-    CoordinatorEntity,
-    DataUpdateCoordinator,
-)
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
 
 from .const import DOMAIN
+from .entity import DormakabaDkeyEntity
 from .models import DormakabaDkeyData
 
 
@@ -31,7 +27,7 @@ async def async_setup_entry(
     async_add_entities([DormakabaDkeyLock(data.coordinator, data.lock)])
 
 
-class DormakabaDkeyLock(CoordinatorEntity[DataUpdateCoordinator[None]], LockEntity):
+class DormakabaDkeyLock(DormakabaDkeyEntity, LockEntity):
     """Representation of Dormakaba dKey lock."""
 
     _attr_has_entity_name = True
@@ -40,16 +36,8 @@ class DormakabaDkeyLock(CoordinatorEntity[DataUpdateCoordinator[None]], LockEnti
         self, coordinator: DataUpdateCoordinator[None], lock: DKEYLock
     ) -> None:
         """Initialize a Dormakaba dKey lock."""
-        super().__init__(coordinator)
-        self._lock = lock
         self._attr_unique_id = lock.address
-        self._attr_device_info = DeviceInfo(
-            name=lock.device_info.device_name or lock.device_info.device_id,
-            model="MTL 9291",
-            sw_version=lock.device_info.sw_version,
-            connections={(dr.CONNECTION_BLUETOOTH, lock.address)},
-        )
-        self._async_update_attrs()
+        super().__init__(coordinator, lock)
 
     @callback
     def _async_update_attrs(self) -> None:
@@ -66,19 +54,3 @@ class DormakabaDkeyLock(CoordinatorEntity[DataUpdateCoordinator[None]], LockEnti
     async def async_unlock(self, **kwargs: Any) -> None:
         """Unlock the lock."""
         await self._lock.unlock()
-
-    @callback
-    def _handle_coordinator_update(self) -> None:
-        """Handle data update."""
-        self._async_update_attrs()
-        self.async_write_ha_state()
-
-    @callback
-    def _handle_state_update(self, update: Notifications) -> None:
-        """Handle data update."""
-        self.coordinator.async_set_updated_data(None)
-
-    async def async_added_to_hass(self) -> None:
-        """Register callbacks."""
-        self.async_on_remove(self._lock.register_callback(self._handle_state_update))
-        return await super().async_added_to_hass()

homeassistant/components/dormakaba_dkey/sensor.py

@@ -0,0 +1,65 @@
+"""Dormakaba dKey integration sensor platform."""
+from __future__ import annotations
+
+from py_dormakaba_dkey import DKEYLock
+
+from homeassistant.components.sensor import (
+    SensorDeviceClass,
+    SensorEntity,
+    SensorEntityDescription,
+    SensorStateClass,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import PERCENTAGE
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
+
+from .const import DOMAIN
+from .entity import DormakabaDkeyEntity
+from .models import DormakabaDkeyData
+
+BINARY_SENSOR_DESCRIPTIONS = (
+    SensorEntityDescription(
+        key="battery_level",
+        name="Battery",
+        device_class=SensorDeviceClass.BATTERY,
+        native_unit_of_measurement=PERCENTAGE,
+        state_class=SensorStateClass.MEASUREMENT,
+    ),
+)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up the lock platform for Dormakaba dKey."""
+    data: DormakabaDkeyData = hass.data[DOMAIN][entry.entry_id]
+    async_add_entities(
+        DormakabaDkeySensor(data.coordinator, data.lock, description)
+        for description in BINARY_SENSOR_DESCRIPTIONS
+    )
+
+
+class DormakabaDkeySensor(DormakabaDkeyEntity, SensorEntity):
+    """Dormakaba dKey sensor."""
+
+    _attr_has_entity_name = True
+
+    def __init__(
+        self,
+        coordinator: DataUpdateCoordinator[None],
+        lock: DKEYLock,
+        description: SensorEntityDescription,
+    ) -> None:
+        """Initialize a Dormakaba dKey binary sensor."""
+        self.entity_description = description
+        self._attr_unique_id = f"{lock.address}_{description.key}"
+        super().__init__(coordinator, lock)
+
+    @callback
+    def _async_update_attrs(self) -> None:
+        """Handle updating _attr values."""
+        self._attr_native_value = getattr(self._lock, self.entity_description.key)