Fix: Entfernt Dauer-Loop

lib/Controller/background_task_controller.dart

@@ -6,6 +6,7 @@ import 'package:flutter/services.dart';
 import 'package:workmanager/workmanager.dart';
 
 import '../Tasks/generate_transactions_task.dart';
+import '../Tasks/task.dart';
 import 'port_controller.dart';
 
 /// Erstellt Hintergrundtasks und führt diese aus
@@ -25,23 +26,34 @@ class BackgroundTaskController {
     } else {
       unawaited(
         Isolate.run(() async {
-          sleep(const Duration(minutes: 1));
+          await _runTask(
+            GenerateTransactionsTask(),
+            const Duration(minutes: 1),
+            const Duration(minutes: 30),
+          );
+        }),
+      );
+    }
+  }
+
+  Future<void> _runTask(
+    final Task task,
+    final Duration initialDelay,
+    final Duration frequency,
+  ) async {
+    sleep(initialDelay);
 
-          while (true) {
     final RootIsolateToken? rootIsolateToken = await PortController()
         .getRootIsolateToken();
 
     if (rootIsolateToken != null) {
-              BackgroundIsolateBinaryMessenger.ensureInitialized(
+      BackgroundIsolateBinaryMessenger.ensureInitialized(rootIsolateToken);
-                rootIsolateToken,
-              );
       await GenerateTransactionsTask().execute();
     }
-            sleep(const Duration(minutes: 30));
+
-          }
+    sleep(frequency);
-        }),
+
-      );
+    unawaited(_runTask(task, initialDelay, frequency));
-    }
   }
 }