Add test notification button (#996)

* Add api to test notifications before you save

* Add button to UI

* Inspect apprise logs to get errors

* Better formatting around errors coming back from the test notification endpoint

* Use apprise's built in log capture

* Instruct the user to get error from container log instead of intercepting and parsing apprise logs

* refac move to test method on notification class

---------

Co-authored-by: Simon <simobilleter@gmail.com>

backend/task/serializers.py

@@ -91,3 +91,12 @@ class TaskNotificationPostSerializer(serializers.Serializer):
 
     task_name = serializers.ChoiceField(choices=list(TASK_CONFIG))
     url = serializers.CharField(required=False)
+
+
+class TaskNotificationTestSerializer(serializers.Serializer):
+    """serialize task notification test POST"""
+
+    url = serializers.CharField()
+    task_name = serializers.ChoiceField(
+        choices=list(TASK_CONFIG), required=False
+    )

backend/task/src/notify.py

@@ -32,6 +32,38 @@ class Notifications:
 
         apobj.notify(body=body, title=title)
 
+    def test(self, url) -> tuple[bool, str]:
+        """send test notification"""
+        try:
+            apobj = apprise.Apprise()
+
+            if not apobj.add(url):
+                success = False
+                message = f"Invalid notification URL format: {url}"
+                return success, message
+
+            title = f"[TA] {self.task_name} process ended with SUCCESS"
+            body = "This is a test notification. Task completed successfully."
+
+            result = apobj.notify(body=body, title=title)
+
+            if result:
+                success = True
+                message = "Test notification sent successfully"
+                return success, message
+
+            success = False
+            message = (
+                "Notification failed. "
+                "Please check container logs for more information."
+            )
+            return success, message
+
+        except Exception as err:  # pylint: disable=broad-exception-caught
+            success = False
+            message = f"Notification error: {str(err)}"
+            return success, message
+
     def _build_message(
         self, task_id: str, task_title: str
     ) -> tuple[str, str | None]:

backend/task/urls.py

@@ -34,4 +34,9 @@ urlpatterns = [
         views.ScheduleNotification.as_view(),
         name="api-schedule-notification",
     ),
+    path(
+        "notification/test/",
+        views.NotificationTestView.as_view(),
+        name="api-schedule-notification-test",
+    ),
 ]

backend/task/views.py

@@ -15,6 +15,7 @@ from task.serializers import (
     TaskIDDataSerializer,
     TaskNotificationPostSerializer,
     TaskNotificationSerializer,
+    TaskNotificationTestSerializer,
     TaskResultSerializer,
 )
 from task.src.config_schedule import CrontabValidator, ScheduleBuilder
@@ -343,3 +344,34 @@ class ScheduleNotification(ApiBaseView):
             Notifications(task_name).remove_task()
 
         return Response(status=204)
+
+
+class NotificationTestView(ApiBaseView):
+    """resolves to /api/task/notification/test/
+    POST: test notification url
+    """
+
+    @extend_schema(
+        request=TaskNotificationTestSerializer(),
+        responses={
+            200: OpenApiResponse(description="test notification sent"),
+            400: OpenApiResponse(
+                ErrorResponseSerializer(), description="bad request"
+            ),
+        },
+    )
+    def post(self, request):
+        """test notification"""
+        data_serializer = TaskNotificationTestSerializer(data=request.data)
+        data_serializer.is_valid(raise_exception=True)
+        validated_data = data_serializer.validated_data
+
+        url = validated_data["url"]
+        task_name = validated_data.get("task_name", "manual_test")
+
+        success, message = Notifications(task_name).test(url)
+
+        status = 200 if success else 400
+        return Response(
+            {"success": success, "message": message}, status=status
+        )