add a monitoring camera setting for cetana

apps/live_monitoring/views.py

@@ -1,6 +1,7 @@
 from rest_framework import decorators, mixins, permissions, response, status, views, viewsets
 
 from apps.core.errors import error_response
+from apps.core.settings_service import SettingsService
 from apps.live_monitoring.models import Camera
 from apps.live_monitoring.serializers import CameraSerializer
 from apps.live_monitoring.services import StreamAccessService
@@ -13,8 +14,18 @@ class CameraViewSet(mixins.ListModelMixin, mixins.RetrieveModelMixin, viewsets.G
     permission_classes = [ActionPermission]
     code_map = {"list": "processing.view", "retrieve": "processing.view", "access": "processing.view"}
 
+    def list(self, request, *args, **kwargs):
+        if not SettingsService().get_bool("camera.enabled", True):
+            return response.Response({"count": 0, "next": None, "previous": None, "results": []})
+        return super().list(request, *args, **kwargs)
+
     @decorators.action(detail=True, methods=["post"])
     def access(self, request, pk=None):
+        if not SettingsService().get_bool("camera.enabled", True):
+            return response.Response(
+                error_response("MONITORING_DISABLED", "Live monitoring is disabled."),
+                status=status.HTTP_403_FORBIDDEN,
+            )
         camera = self.get_object()
         service = StreamAccessService()
         if not service.can_access(request.user, camera):
@@ -31,8 +42,14 @@ class VerifyStreamView(views.APIView):
     permission_classes = [permissions.AllowAny]
 
     def get(self, request):
+        if not SettingsService().get_bool("camera.enabled", True):
+            return response.Response(
+                error_response("MONITORING_DISABLED", "Live monitoring is disabled."),
+                status=status.HTTP_403_FORBIDDEN,
+            )
         token = request.query_params.get("token")
-        payload = StreamAccessService().verify_token(token)
+        service = StreamAccessService()
+        payload = service.verify_token(token)
         if not payload:
             return response.Response(
                 error_response("INVALID_TOKEN", "Invalid or expired stream token."),
@@ -45,4 +62,6 @@ class VerifyStreamView(views.APIView):
                 error_response("CAMERA_NOT_FOUND", "Camera not found."),
                 status=status.HTTP_404_NOT_FOUND,
             )
-        return response.Response({"stream_url": camera.stream_url})
+        stream = service.resolve_stream(camera)
+        # Keep ``url`` alias for older clients; ``stream_url`` is canonical.
+        return response.Response({**stream, "url": stream.get("stream_url")})