Add unique ids to lutron_caseta scenes (#73383)

.coveragerc

@@ -679,6 +679,7 @@ omit =
     homeassistant/components/lutron_caseta/light.py
     homeassistant/components/lutron_caseta/scene.py
     homeassistant/components/lutron_caseta/switch.py
+    homeassistant/components/lutron_caseta/util.py
     homeassistant/components/lw12wifi/light.py
     homeassistant/components/lyric/__init__.py
     homeassistant/components/lyric/api.py

homeassistant/components/lutron_caseta/scene.py

@@ -1,12 +1,17 @@
 """Support for Lutron Caseta scenes."""
 from typing import Any
 
+from pylutron_caseta.smartbridge import Smartbridge
+
 from homeassistant.components.scene import Scene
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from .const import BRIDGE_LEAP, DOMAIN as CASETA_DOMAIN
+from . import _area_and_name_from_name
+from .const import BRIDGE_DEVICE, BRIDGE_LEAP, DOMAIN as CASETA_DOMAIN
+from .util import serial_to_unique_id
 
 
 async def async_setup_entry(
@@ -20,19 +25,27 @@ async def async_setup_entry(
     scene entities.
     """
     data = hass.data[CASETA_DOMAIN][config_entry.entry_id]
-    bridge = data[BRIDGE_LEAP]
+    bridge: Smartbridge = data[BRIDGE_LEAP]
+    bridge_device = data[BRIDGE_DEVICE]
     scenes = bridge.get_scenes()
-    async_add_entities(LutronCasetaScene(scenes[scene], bridge) for scene in scenes)
+    async_add_entities(
+        LutronCasetaScene(scenes[scene], bridge, bridge_device) for scene in scenes
+    )
 
 
 class LutronCasetaScene(Scene):
     """Representation of a Lutron Caseta scene."""
 
-    def __init__(self, scene, bridge):
+    def __init__(self, scene, bridge, bridge_device):
         """Initialize the Lutron Caseta scene."""
-        self._attr_name = scene["name"]
         self._scene_id = scene["scene_id"]
-        self._bridge = bridge
+        self._bridge: Smartbridge = bridge
+        bridge_unique_id = serial_to_unique_id(bridge_device["serial"])
+        self._attr_device_info = DeviceInfo(
+            identifiers={(CASETA_DOMAIN, bridge_device["serial"])},
+        )
+        self._attr_name = _area_and_name_from_name(scene["name"])[1]
+        self._attr_unique_id = f"scene_{bridge_unique_id}_{self._scene_id}"
 
     async def async_activate(self, **kwargs: Any) -> None:
         """Activate the scene."""

homeassistant/components/lutron_caseta/util.py

@@ -0,0 +1,7 @@
+"""Support for Lutron Caseta."""
+from __future__ import annotations
+
+
+def serial_to_unique_id(serial: int) -> str:
+    """Convert a lutron serial number to a unique id."""
+    return hex(serial)[2:].zfill(8)