Disable background task; correct roadmap

Most of the functionality of automatically checking for updates in the
background is already implemented. However the backend is not ready yet
and not delivering updates currently. Disabling the background task
functionality and correcting the roadmap: Moving this feature to version
0.9.

README.md

@@ -46,8 +46,8 @@ By contributing you release your contributed code under the licensing terms expl
 
 ## Roadmap
 * **0.7**: Go to Google Play Store
-* **0.8**: Implement automatic updates
-* **0.9**: Provide PDF files as well for all worksheets
+* **0.8**: Provide PDF files as well for all worksheets
+* **0.9**: Enable automatic updates (half-way implemented already but currently not operational - waiting for backend development to catch up)
 * **1.0**: We're solid now and excited about the future
 
 We plan to release an iOS version sometime in 2024.

lib/background/background_scheduler.dart

@@ -1,7 +1,4 @@
-import 'package:app4training/data/updates.dart';
-import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:workmanager/workmanager.dart';
 
 /// The state indicates whether our background task is scheduled or not.
 /// The schedule() method gets called
@@ -20,6 +17,7 @@ class BackgroundScheduler extends Notifier<bool> {
   ///
   /// Make sure TestBackgroundScheduler.schedule() has the same logic
   Future<void> schedule() async {
+    /* TODO Enable this with version 0.9
     debugPrint('Cancelling all currently scheduled background tasks');
     await Workmanager().cancelByUniqueName('backgroundTask');
     Duration? interval = ref.read(checkFrequencyProvider).getDuration();
@@ -32,6 +30,7 @@ class BackgroundScheduler extends Notifier<bool> {
         initialDelay: interval ~/ 2);
     debugPrint('Succesfully scheduled the background task: $interval');
     state = true;
+    */
   }
 }
 

lib/main.dart

@@ -1,10 +1,8 @@
-import 'package:app4training/background/background_task.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:app4training/routes/routes.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:workmanager/workmanager.dart';
 import 'data/app_language.dart';
 import 'data/globals.dart';
 import 'design/theme.dart';
@@ -15,8 +13,8 @@ void main() async {
   final prefs = await SharedPreferences.getInstance();
   final packageInfo = await PackageInfo.fromPlatform();
 
-  // Run initialization for our background task
-  await Workmanager().initialize(backgroundTask, isInDebugMode: false);
+  // Run initialization for our background task TODO enable in version 0.9
+  // await Workmanager().initialize(backgroundTask, isInDebugMode: false);
 
   runApp(ProviderScope(overrides: [
     sharedPrefsProvider.overrideWithValue(prefs),