Booking lifecycle notifications and status updates

backend/apps/bookings/views.py

@@ -1,7 +1,9 @@
 from rest_framework import permissions, viewsets
 
-from apps.bookings.models import Booking
+from apps.bookings.models import Booking, BookingStatus
 from apps.bookings.serializers import BookingCreateSerializer, BookingSerializer
+from apps.notifications.models import NotificationEvent
+from apps.notifications.services import notify_booking_lifecycle, notify_on_status_change
 
 
 class BookingViewSet(viewsets.ModelViewSet):
@@ -21,3 +23,12 @@ class BookingViewSet(viewsets.ModelViewSet):
         if self.action == "create":
             return BookingCreateSerializer
         return BookingSerializer
+
+    def perform_create(self, serializer):
+        booking = serializer.save()
+        notify_booking_lifecycle(booking, NotificationEvent.BOOKING_CREATED)
+
+    def perform_update(self, serializer):
+        previous_status = self.get_object().status
+        booking = serializer.save()
+        notify_on_status_change(booking, previous_status)