Implemented unique ID support for Fibaro hub integration (#19055)

* Unique ID support

New unique ID support, based on hub's serial number and device's permanent ID

* Fixes, showing attributes

Minor fixes
Showing room, hub, fibaro_id for easier mapping and finding of devices

* Update fibaro.py

homeassistant/components/fibaro.py

@@ -7,6 +7,7 @@ https://home-assistant.io/components/fibaro/
 
 import logging
 from collections import defaultdict
+from typing import Optional
 import voluptuous as vol
 
 from homeassistant.const import (ATTR_ARMED, ATTR_BATTERY_LEVEL,
@@ -74,11 +75,14 @@ class FibaroController():
         from fiblary3.client.v4.client import Client as FibaroClient
         self._client = FibaroClient(url, username, password)
         self._scene_map = None
+        self.hub_serial = None          # Unique serial number of the hub
 
     def connect(self):
         """Start the communication with the Fibaro controller."""
         try:
             login = self._client.login.get()
+            info = self._client.info.get()
+            self.hub_serial = slugify(info.serialNumber)
         except AssertionError:
             _LOGGER.error("Can't connect to Fibaro HC. "
                           "Please check URL.")
@@ -180,9 +184,12 @@ class FibaroController():
                 room_name = 'Unknown'
             else:
                 room_name = self._room_map[device.roomID].name
+            device.room_name = room_name
             device.friendly_name = '{} {}'.format(room_name, device.name)
             device.ha_id = '{}_{}_{}'.format(
                 slugify(room_name), slugify(device.name), device.id)
+            device.unique_id_str = "{}.{}".format(
+                self.hub_serial, device.id)
             self._scene_map[device.id] = device
             self.fibaro_devices['scene'].append(device)
 
@@ -197,6 +204,7 @@ class FibaroController():
                     room_name = 'Unknown'
                 else:
                     room_name = self._room_map[device.roomID].name
+                device.room_name = room_name
                 device.friendly_name = room_name + ' ' + device.name
                 device.ha_id = '{}_{}_{}'.format(
                     slugify(room_name), slugify(device.name), device.id)
@@ -207,6 +215,8 @@ class FibaroController():
                 else:
                     device.mapped_type = None
                 if device.mapped_type:
+                    device.unique_id_str = "{}.{}".format(
+                        self.hub_serial, device.id)
                     self._device_map[device.id] = device
                     self.fibaro_devices[device.mapped_type].append(device)
                 else:
@@ -347,7 +357,12 @@ class FibaroDevice(Entity):
         return False
 
     @property
-    def name(self):
+    def unique_id(self) -> str:
+        """Return a unique ID."""
+        return self.fibaro_device.unique_id_str
+
+    @property
+    def name(self) -> Optional[str]:
         """Return the name of the device."""
         return self._name
 
@@ -380,5 +395,5 @@ class FibaroDevice(Entity):
         except (ValueError, KeyError):
             pass
 
-        attr['id'] = self.ha_id
+        attr['fibaro_id'] = self.fibaro_device.id
         return attr