Feat: Stellt den BackgroundManager auf IsolateManager um

lib/Controller/background_task_controller.dart

@@ -1,19 +1,18 @@
 import 'dart:async';
 import 'dart:io';
-import 'dart:isolate';
 
-import 'package:flutter/services.dart';
+import 'package:flutter/foundation.dart';
+import 'package:isolate_manager/isolate_manager.dart';
 import 'package:workmanager/workmanager.dart';
 
-import '../Tasks/generate_transactions_task.dart';
-import '../Tasks/task.dart';
-import 'port_controller.dart';
+import '../Tasks/workers.dart';
+import '../Tasks/workmanager_workers.dart';
 
 /// Erstellt Hintergrundtasks und führt diese aus
 class BackgroundTaskController {
   /// Erstellt eine neue Instanz dieser Klasse
   BackgroundTaskController() {
-    if (Platform.isAndroid) {
+    if (!kIsWeb && Platform.isAndroid) {
       unawaited(Workmanager().initialize(callbackDispatcher));
       unawaited(
         Workmanager().registerPeriodicTask(
@@ -25,47 +24,12 @@ class BackgroundTaskController {
       );
     } else {
       unawaited(
-        Isolate.run(() {
-          unawaited(_runTask(
-            GenerateTransactionsTask(),
-            const Duration(minutes: 1),
-            const Duration(minutes: 30),
-          ));
+        IsolateManager.runFunction(runTask, {
+          'taskName': 'generate_transactions',
+          'initialDelayMinutes': 1,
+          'frequencyMinutes': 30,
         }),
       );
     }
   }
-
-  Future<void> _runTask(
-    final Task task,
-    final Duration initialDelay,
-    final Duration frequency,
-  ) async {
-    await Future.delayed(initialDelay);
-
-    final RootIsolateToken? rootIsolateToken = await PortController()
-        .getRootIsolateToken();
-
-    if (rootIsolateToken != null) {
-      BackgroundIsolateBinaryMessenger.ensureInitialized(rootIsolateToken);
-      await GenerateTransactionsTask().execute();
-    }
-
-    await Future.delayed(frequency);
-
-    unawaited(_runTask(task, initialDelay, frequency));
-  }
-}
-
-/// Die Funktion wird von Hintergrundtasks ausgerufen, um diese auszuführen
-@pragma('vm:entry-point')
-void callbackDispatcher() {
-  Workmanager().executeTask((final task, final inputData) {
-    switch (task) {
-      case 'generate_transactions':
-        return GenerateTransactionsTask().execute();
-    }
-
-    return Future.value(true);
-  });
 }