experimental testing [skip ci]

cw_bitcoin/lib/electrum.dart

@@ -356,6 +356,7 @@ class ElectrumClient {
   BehaviorSubject<Map<String, dynamic>>? tipListener;
   int? currentTip;
   Future<int?> getCurrentBlockChainTip() async {
+    try {
       final method = 'blockchain.headers.subscribe';
       final cb = (result) => currentTip = result['height'] as int;
       if (tipListener == null) {
@@ -364,6 +365,9 @@ class ElectrumClient {
         callWithTimeout(method: method).then(cb);
       }
       return currentTip;
+    } catch (e) {
+      return null;
+    }
   }
 
   BehaviorSubject<Object>? chainTipSubscribe() {

cw_bitcoin/lib/electrum_wallet.dart

@@ -1238,8 +1238,6 @@ abstract class ElectrumWalletBase
     try {
       unspents = await electrumClient.getListUnspent(address.getScriptHash(network));
     } catch (e, s) {
-      print(e);
-      print(s);
       return [];
     }
 

cw_bitcoin/lib/litecoin_wallet.dart

@@ -167,9 +167,9 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
       return;
     }
 
-    await subscribeForUpdates();
+    // await subscribeForUpdates();
-    await updateTransactions();
+    // await updateTransactions();
-    await updateFeeRates();
+    // await updateFeeRates();
 
     Timer.periodic(const Duration(minutes: 1), (timer) async => await updateFeeRates());
 
@@ -177,7 +177,8 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
     _syncTimer?.cancel();
     _syncTimer = Timer.periodic(const Duration(milliseconds: 1500), (timer) async {
       if (syncStatus is FailedSyncStatus) return;
-      final height = await electrumClient.getCurrentBlockChainTip() ?? 0;
+      // final height = await electrumClient.getCurrentBlockChainTip() ?? 0;
+      final height = 0;
       final resp = await _stub.status(StatusRequest());
       if (resp.blockHeaderHeight < height) {
         int h = resp.blockHeaderHeight;
@@ -208,8 +209,8 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
         }
       }
     });
-    updateUnspent();
+    // updateUnspent();
-    fetchBalances();
+    // fetchBalances();
     // this runs in the background and processes new utxos as they come in:
     processMwebUtxos();
   }
@@ -782,4 +783,13 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
     stopSync();
     startSync();
   }
+
+  Future<RpcClient> getStub() async {
+    return CwMweb.stub();
+  }
+
+  Future<StatusResponse> getStatusRequest() async {
+    final resp = await _stub.status(StatusRequest());
+    return resp;
+  }
 }

lib/bitcoin/cw_bitcoin.dart

@@ -597,4 +597,16 @@ class CWBitcoin extends Bitcoin {
     final litecoinWallet = wallet as LitecoinWallet;
     return litecoinWallet.mwebEnabled;
   }
+
+  @override
+  dynamic getMwebStub(Object wallet) {
+    final litecoinWallet = wallet as LitecoinWallet;
+    return litecoinWallet.getStub();
+  }
+
+  @override
+  dynamic getStatusRequest(Object wallet) {
+    final litecoinWallet = wallet as LitecoinWallet;
+    return litecoinWallet.getStatusRequest();
+  }
 }

lib/entities/background_tasks.dart

@@ -1,5 +1,7 @@
+import 'dart:async';
 import 'dart:io';
 
+import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/core/wallet_loading_service.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cake_wallet/store/settings_store.dart';
@@ -25,6 +27,11 @@ void callbackDispatcher() {
     try {
       switch (task) {
         case mwebSyncTaskKey:
+
+          /// The work manager runs on a separate isolate from the main flutter isolate.
+          /// thus we initialize app configs first; hive, getIt, etc...
+          await initializeAppConfigs();
+
           final List<WalletListItem> ltcWallets = getIt
               .get<WalletListViewModel>()
               .wallets
@@ -39,17 +46,51 @@ void callbackDispatcher() {
 
           var wallet =
               await walletLoadingService.load(ltcWallets.first.type, ltcWallets.first.name);
-          await wallet.startSync();
+
+          print("STARTING SYNC FROM BG!!");
+          // await wallet.startSync();
+
+          // RpcClient _stub = bitcoin!.getMwebStub();
+
+          double syncStatus = 0.0;
+
+          Timer? _syncTimer;
+
+          dynamic _stub = await bitcoin!.getMwebStub(wallet);
+
+          _syncTimer = Timer.periodic(const Duration(milliseconds: 1500), (timer) async {
+            // if (syncStatus is FailedSyncStatus) return;
+            // final height = await electrumClient.getCurrentBlockChainTip() ?? 0;
+            final height = 0;
+            dynamic resp = await bitcoin!.getStatusRequest(wallet);
+            int blockHeaderHeight = resp.blockHeaderHeight as int;
+            int mwebHeaderHeight = resp.mwebHeaderHeight as int;
+            int mwebUtxosHeight = resp.mwebUtxosHeight as int;
+
+            if (blockHeaderHeight < height) {
+              syncStatus = blockHeaderHeight / height;
+            } else if (mwebHeaderHeight < height) {
+              syncStatus = mwebHeaderHeight / height;
+            } else if (mwebUtxosHeight < height) {
+              syncStatus = 0.999;
+            } else {
+              syncStatus = 1;
+            }
+          });
 
           for (int i = 0;; i++) {
             await Future<void>.delayed(const Duration(seconds: 1));
-            if (wallet.syncStatus.progress() == 1.0) {
+            if (syncStatus == 1) {
+              print("sync done!");
               break;
+            } else {
+              print("Sync status ${syncStatus}");
             }
             if (i > 600) {
               return Future.error("Synchronization Timed out");
             }
           }
+          _syncTimer?.cancel();
 
           break;
 
@@ -162,7 +203,7 @@ class BackgroundTasks {
         requiresDeviceIdle: syncMode.type == SyncType.unobtrusive,
       );
 
-      if (Platform.isIOS) {
+      if (Platform.isIOS && syncMode.type == SyncType.unobtrusive) {
         // await Workmanager().registerOneOffTask(
         //   moneroSyncTaskKey,
         //   moneroSyncTaskKey,
@@ -174,7 +215,7 @@ class BackgroundTasks {
         await Workmanager().registerOneOffTask(
           mwebSyncTaskKey,
           mwebSyncTaskKey,
-          initialDelay: Duration(seconds: 10),
+          initialDelay: Duration(seconds: 30),
           existingWorkPolicy: ExistingWorkPolicy.replace,
           inputData: inputData,
           constraints: constraints,

lib/entities/load_current_wallet.dart

@@ -24,5 +24,5 @@ Future<void> loadCurrentWallet() async {
   final wallet = await walletLoadingService.load(type, name);
   await appStore.changeCurrentWallet(wallet);
 
-  getIt.get<BackgroundTasks>().registerSyncTask();
+  // getIt.get<BackgroundTasks>().registerSyncTask();
 }

lib/view_model/settings/sync_mode.dart

@@ -10,6 +10,6 @@ class SyncMode {
   static final all = [
     SyncMode("Disabled", SyncType.disabled, Duration.zero),
     SyncMode("Unobtrusive", SyncType.unobtrusive, Duration(hours: 12)),
-    SyncMode("Aggressive", SyncType.aggressive, Duration(hours: 3)),
+    SyncMode("Aggressive", SyncType.aggressive, Duration(minutes: 20)),
   ];
 }