Add entity descriptions to binary sensors of Rituals Perfume Genie (h…

…ome-assistant#92485)

homeassistant/components/rituals_perfume_genie/binary_sensor.py

@@ -1,9 +1,15 @@
 """Support for Rituals Perfume Genie binary sensors."""
 from __future__ import annotations
 
+from collections.abc import Callable
+from dataclasses import dataclass
+
+from pyrituals import Diffuser
+
 from homeassistant.components.binary_sensor import (
     BinarySensorDeviceClass,
     BinarySensorEntity,
+    BinarySensorEntityDescription,
 )
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import EntityCategory
@@ -15,6 +21,33 @@
 from .entity import DiffuserEntity
 
 
+@dataclass
+class RitualsentityDescriptionMixin:
+    """Mixin values for Rituals entities."""
+
+    is_on_fn: Callable[[Diffuser], bool]
+    has_fn: Callable[[Diffuser], bool]
+
+
+@dataclass
+class RitualsBinarySensorEntityDescription(
+    BinarySensorEntityDescription, RitualsentityDescriptionMixin
+):
+    """Class describing Rituals binary sensor entities."""
+
+
+ENTITY_DESCRIPTIONS = (
+    RitualsBinarySensorEntityDescription(
+        key="charging",
+        name="Battery Charging",
+        device_class=BinarySensorDeviceClass.BATTERY_CHARGING,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        is_on_fn=lambda diffuser: diffuser.charging,
+        has_fn=lambda diffuser: diffuser.has_battery,
+    ),
+)
+
+
 async def async_setup_entry(
     hass: HomeAssistant,
     config_entry: ConfigEntry,
@@ -26,25 +59,30 @@ async def async_setup_entry(
     ]
 
     async_add_entities(
-        DiffuserBatteryChargingBinarySensor(coordinator)
+        RitualsBinarySensorEntity(coordinator, description)
         for coordinator in coordinators.values()
-        if coordinator.diffuser.has_battery
+        for description in ENTITY_DESCRIPTIONS
+        if description.has_fn(coordinator.diffuser)
     )
 
 
-class DiffuserBatteryChargingBinarySensor(DiffuserEntity, BinarySensorEntity):
-    """Representation of a diffuser battery charging binary sensor."""
+class RitualsBinarySensorEntity(DiffuserEntity, BinarySensorEntity):
+    """Defines a Rituals binary sensor entity."""
 
-    _attr_device_class = BinarySensorDeviceClass.BATTERY_CHARGING
-    _attr_entity_category = EntityCategory.DIAGNOSTIC
+    entity_description: RitualsBinarySensorEntityDescription
 
-    def __init__(self, coordinator: RitualsDataUpdateCoordinator) -> None:
-        """Initialize the battery charging binary sensor."""
+    def __init__(
+        self,
+        coordinator: RitualsDataUpdateCoordinator,
+        description: RitualsBinarySensorEntityDescription,
+    ) -> None:
+        """Initialize Rituals binary sensor entity."""
         super().__init__(coordinator)
-        self._attr_unique_id = f"{coordinator.diffuser.hublot}-charging"
-        self._attr_name = f"{coordinator.diffuser.name} Battery Charging"
+        self.entity_description = description
+        self._attr_unique_id = f"{coordinator.diffuser.hublot}-{description.key}"
+        self._attr_name = f"{coordinator.diffuser.name} {description.name}"
 
     @property
     def is_on(self) -> bool:
-        """Return the state of the battery charging binary sensor."""
-        return self.coordinator.diffuser.charging
+        """Return the state of the binary sensor."""
+        return self.entity_description.is_on_fn(self.coordinator.diffuser)