Disabled cameras fixing (#17273)

* Fix case where objects are returned as null

* Fix enabled status not being persisted

* Use config as source of truth when refreshed

* Ensure camera always have config object updated

* Cleanup typing

frigate/camera/state.py

@@ -306,7 +306,6 @@ class CameraState:
         # TODO: can i switch to looking this up and only changing when an event ends?
         # maintain best objects
         camera_activity: dict[str, list[any]] = {
-            "enabled": True,
             "motion": len(motion_boxes) > 0,
             "objects": [],
         }

frigate/comms/dispatcher.py

@@ -164,8 +164,12 @@ class Dispatcher:
 
         def handle_on_connect():
             camera_status = self.camera_activity.last_camera_activity.copy()
+            cameras_with_status = camera_status.keys()
+
+            for camera in self.config.cameras.keys():
+                if camera not in cameras_with_status:
+                    camera_status[camera] = {}
 
-            for camera in camera_status.keys():
                 camera_status[camera]["config"] = {
                     "detect": self.config.cameras[camera].detect.enabled,
                     "enabled": self.config.cameras[camera].enabled,

frigate/video.py

@@ -113,8 +113,10 @@ def capture_frames(
     def get_enabled_state():
         """Fetch the latest enabled state from ZMQ."""
         _, config_data = config_subscriber.check_for_update()
+
         if config_data:
-            return config_data.enabled
+            config.enabled = config_data.enabled
+
         return config.enabled
 
     while not stop_event.is_set():