work on getting monero wallets synced

lib/entities/background_tasks.dart

@@ -2,18 +2,23 @@ import 'dart:async';
 import 'dart:io';
 import 'dart:ui';
 
+import 'package:cake_wallet/core/wallet_loading_service.dart';
+import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/utils/device_info.dart';
 import 'package:cake_wallet/utils/feature_flag.dart';
 import 'package:cake_wallet/view_model/settings/sync_mode.dart';
+import 'package:cake_wallet/view_model/wallet_list/wallet_list_item.dart';
 import 'package:cake_wallet/view_model/wallet_list/wallet_list_view_model.dart';
+import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_background_service/flutter_background_service.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:cake_wallet/main.dart';
 import 'package:cake_wallet/di.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 const moneroSyncTaskKey = "com.fotolockr.cakewallet.monero_sync_task";
 const mwebSyncTaskKey = "com.fotolockr.cakewallet.mweb_sync_task";
@@ -88,6 +93,62 @@ Future<void> onStart(ServiceInstance service) async {
 
     print("initialized app configs");
 
+    final currentWallet = getIt.get<AppStore>().wallet;
+    // don't start syncing immediately:
+    await currentWallet?.stopSync();
+
+    final walletLoadingService = getIt.get<WalletLoadingService>();
+    final typeRaw = getIt.get<SharedPreferences>().getInt(PreferencesKey.currentWalletType);
+
+    bool syncAll = true;
+    List<WalletBase?> syncingWallets = [];
+
+    if (syncAll) {
+      /// get all Monero wallets of the user and sync them
+      final List<WalletListItem> moneroWallets = getIt
+          .get<WalletListViewModel>()
+          .wallets
+          .where((element) => [WalletType.monero, WalletType.wownero].contains(element.type))
+          .toList();
+
+      for (int i = 0; i < moneroWallets.length; i++) {
+        final wallet =
+            await walletLoadingService.load(moneroWallets[i].type, moneroWallets[i].name);
+        final node = getIt.get<SettingsStore>().getCurrentNode(moneroWallets[i].type);
+        await wallet.connectToNode(node: node);
+        await wallet.startSync();
+        syncingWallets.add(wallet);
+      }
+
+      // get all litecoin wallets and sync them:
+      final List<WalletListItem> litecoinWallets = getIt
+          .get<WalletListViewModel>()
+          .wallets
+          .where((element) => element.type == WalletType.litecoin)
+          .toList();
+
+      // we only need to sync the first litecoin wallet since they share the same collection of blocks
+      if (litecoinWallets.isNotEmpty) {
+        var firstWallet = litecoinWallets.first;
+        final wallet = await walletLoadingService.load(firstWallet.type, firstWallet.name);
+        final node = getIt.get<SettingsStore>().getCurrentNode(firstWallet.type);
+        await wallet.connectToNode(node: node);
+        await wallet.startSync();
+        syncingWallets.add(wallet);
+      }
+    } else {
+      // /// if the user chose to sync only active wallet
+      // /// if the current wallet is monero; sync it only
+      // if (typeRaw == WalletType.monero.index || typeRaw == WalletType.wownero.index) {
+      //   final name = getIt.get<SharedPreferences>().getString(PreferencesKey.currentWalletName);
+      //   wallet = await walletLoadingService.load(WalletType.values[typeRaw!], name!);
+      //   final node = getIt.get<SettingsStore>().getCurrentNode(WalletType.values[typeRaw]);
+      //   await wallet.connectToNode(node: node);
+      //   await wallet.startSync();
+      //   syncingWallets.add(wallet);
+      // }
+    }
+
     _syncTimer?.cancel();
     _syncTimer = Timer.periodic(const Duration(milliseconds: 1500), (timer) {
       final wallet = getIt.get<AppStore>().wallet;
@@ -96,7 +157,7 @@ Future<void> onStart(ServiceInstance service) async {
       flutterLocalNotificationsPlugin.show(
         notificationId,
         "${syncProgress}% Synced",
-        'Mweb background sync - ${DateTime.now()}',
+        'Background sync - ${DateTime.now()}',
         const NotificationDetails(
           android: AndroidNotificationDetails(
             notificationChannelId,