review fixes, additional cleanup

cw_bitcoin/lib/electrum_balance.dart

@@ -48,15 +48,14 @@ class ElectrumBalance extends Balance {
   }
 
   @override
-  String get formattedSecondAvailableBalance => bitcoinAmountToString(amount: secondConfirmed ?? 0);
+  String get formattedSecondAvailableBalance => bitcoinAmountToString(amount: secondConfirmed);
 
   @override
-  String get formattedSecondAdditionalBalance =>
-      bitcoinAmountToString(amount: secondUnconfirmed ?? 0);
+  String get formattedSecondAdditionalBalance => bitcoinAmountToString(amount: secondUnconfirmed);
 
   @override
   String get formattedFullAvailableBalance =>
-      bitcoinAmountToString(amount: confirmed + (secondConfirmed ?? 0) - frozen);
+      bitcoinAmountToString(amount: confirmed + secondConfirmed - frozen);
 
   String toJSON() => json.encode({
         'confirmed': confirmed,

cw_bitcoin/lib/electrum_wallet.dart

@@ -1357,13 +1357,7 @@ abstract class ElectrumWalletBase
     List<Map<String, dynamic>> unspents = [];
     List<BitcoinUnspent> updatedUnspentCoins = [];
 
-    try {
     unspents = await electrumClient.getListUnspent(address.getScriptHash(network));
-    } catch (e, s) {
-      print(e);
-      print(s);
-      return [];
-    }
 
     await Future.wait(unspents.map((unspent) async {
       try {

cw_bitcoin/lib/litecoin_wallet.dart

@@ -97,7 +97,6 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
   late final Bip32Slip10Secp256k1 mwebHd;
   late final Box<MwebUtxo> mwebUtxosBox;
   Timer? _syncTimer;
-  Timer? _stuckSyncTimer;
   Timer? _feeRatesTimer;
   StreamSubscription<Utxo>? _utxoStream;
   late RpcClient _stub;
@@ -233,6 +232,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
 
   Future<void> waitForMwebAddresses() async {
     // ensure that we have the full 1000 mweb addresses generated before continuing:
+    // should no longer be needed, but leaving here just in case
     final mwebAddrs = (walletAddresses as LitecoinWalletAddresses).mwebAddrs;
     while (mwebAddrs.length < 1000) {
       print("waiting for mweb addresses to finish generating...");
@@ -243,7 +243,12 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
   @action
   @override
   Future<void> startSync() async {
+    print("STARTING SYNC @@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
+    if (syncStatus is SyncronizingSyncStatus) {
+      return;
+    }
     print("STARTING SYNC - MWEB ENABLED: $mwebEnabled");
+    try {
       syncStatus = SyncronizingSyncStatus();
       await subscribeForUpdates();
 
@@ -267,7 +272,6 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
       }
 
       await waitForMwebAddresses();
-    try {
       await getStub();
       await processMwebUtxos();
       await updateTransactions();
@@ -318,26 +322,6 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
         return;
       }
     });
-
-    // setup a watch dog to restart the sync process if it gets stuck:
-    List<double> lastFewProgresses = [];
-    _stuckSyncTimer?.cancel();
-    _stuckSyncTimer = Timer.periodic(const Duration(seconds: 10), (timer) async {
-      if (syncStatus is! SyncingSyncStatus) return;
-      if (syncStatus.progress() > 0.98) return; // don't check if we're close to synced
-      lastFewProgresses.add(syncStatus.progress());
-      if (lastFewProgresses.length < 10) return;
-      // limit list size to 10:
-      while (lastFewProgresses.length > 10) {
-        lastFewProgresses.removeAt(0);
-      }
-      // if the progress is the same over the last 100 seconds, restart the sync:
-      if (lastFewProgresses.every((p) => p == lastFewProgresses.first)) {
-        print("mweb syncing is stuck, restarting...");
-        syncStatus = LostConnectionSyncStatus();
-        await stopSync();
-      }
-    });
   }
 
   @action
@@ -345,7 +329,6 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
   Future<void> stopSync() async {
     _syncTimer?.cancel();
     _utxoStream?.cancel();
-    _stuckSyncTimer?.cancel();
     _feeRatesTimer?.cancel();
     await CwMweb.stop();
   }
@@ -913,7 +896,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
           final addresses = <String>{};
           transaction.inputAddresses?.forEach((id) async {
             final utxo = mwebUtxosBox.get(id);
-            // await mwebUtxosBox.delete(id);
+            // await mwebUtxosBox.delete(id);// gets deleted in checkMwebUtxosSpent
             if (utxo == null) return;
             final addressRecord = walletAddresses.allAddresses
                 .firstWhere((addressRecord) => addressRecord.address == utxo.address);
@@ -946,7 +929,6 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
   @override
   Future<void> close() async {
     _utxoStream?.cancel();
-    _stuckSyncTimer?.cancel();
     _feeRatesTimer?.cancel();
     _syncTimer?.cancel();
     await stopSync();

lib/src/screens/receive/widgets/address_list.dart

@@ -38,7 +38,7 @@ class AddressList extends StatelessWidget {
         separatorBuilder: (context, _) => const HorizontalSectionDivider(),
         shrinkWrap: true,
         physics: NeverScrollableScrollPhysics(),
-        itemCount: min(addressListViewModel.items.length, 100),// TODO: don't show all 1000 mweb addresses
+        itemCount: addressListViewModel.items.length,
         itemBuilder: (context, index) {
           final item = addressListViewModel.items[index];
           Widget cell = Container();

lib/view_model/dashboard/balance_view_model.dart

@@ -235,17 +235,6 @@ abstract class BalanceViewModelBase with Store {
     return walletBalance.formattedAdditionalBalance;
   }
 
-  @computed
-  String get secondAdditionalBalance {
-    final walletBalance = _walletBalance;
-
-    if (displayMode == BalanceDisplayMode.hiddenBalance) {
-      return '---';
-    }
-
-    return walletBalance.formattedSecondAdditionalBalance;
-  }
-
   @computed
   String get availableFiatBalance {
     final walletBalance = _walletBalance;

lib/view_model/send/send_view_model.dart

@@ -217,7 +217,16 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
   PendingTransaction? pendingTransaction;
 
   @computed
-  String get balance => wallet.balance[selectedCryptoCurrency]!.formattedFullAvailableBalance;
+  String get balance {
+    String fullFormattedBalance =
+        wallet.balance[selectedCryptoCurrency]!.formattedFullAvailableBalance;
+    String formattedAvailableBalance =
+        wallet.balance[selectedCryptoCurrency]!.formattedAvailableBalance;
+    if (fullFormattedBalance.isNotEmpty) {
+      return fullFormattedBalance;
+    }
+    return formattedAvailableBalance;
+  }
 
   @computed
   bool get isFiatDisabled => balanceViewModel.isFiatDisabled;

lib/view_model/wallet_address_list/wallet_address_list_view_model.dart

@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
 import 'package:cake_wallet/entities/auto_generate_subaddress_status.dart';
@@ -217,8 +219,9 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
   })  : _baseItems = <ListItem>[],
         selectedCurrency = walletTypeToCryptoCurrency(appStore.wallet!.type),
         _cryptoNumberFormat = NumberFormat(_cryptoNumberPattern),
-        hasAccounts =
-            appStore.wallet!.type == WalletType.monero || appStore.wallet!.type ==  WalletType.wownero || appStore.wallet!.type == WalletType.haven,
+        hasAccounts = appStore.wallet!.type == WalletType.monero ||
+            appStore.wallet!.type == WalletType.wownero ||
+            appStore.wallet!.type == WalletType.haven,
         amount = '',
         _settingsStore = appStore.settingsStore,
         super(appStore: appStore) {
@@ -230,7 +233,9 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
     _init();
 
     selectedCurrency = walletTypeToCryptoCurrency(wallet.type);
-    hasAccounts = wallet.type == WalletType.monero || wallet.type == WalletType.wownero || wallet.type == WalletType.haven;
+    hasAccounts = wallet.type == WalletType.monero ||
+        wallet.type == WalletType.wownero ||
+        wallet.type == WalletType.haven;
   }
 
   static const String _cryptoNumberPattern = '0.00000000';
@@ -519,8 +524,7 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
 
   @action
   Future<void> setAddressType(dynamic option) async {
-    if (wallet.type == WalletType.bitcoin ||
-        wallet.type == WalletType.litecoin) {
+    if (wallet.type == WalletType.bitcoin || wallet.type == WalletType.litecoin) {
       await bitcoin!.setAddressType(wallet, option);
     }
   }
@@ -528,7 +532,9 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
   void _init() {
     _baseItems = [];
 
-    if (wallet.type == WalletType.monero || wallet.type == WalletType.wownero || wallet.type == WalletType.haven) {
+    if (wallet.type == WalletType.monero ||
+        wallet.type == WalletType.wownero ||
+        wallet.type == WalletType.haven) {
       _baseItems.add(WalletAccountListHeader());
     }