Merge branch 'main' of https://github.com/cake-tech/cake_wallet into CW-659-Automated-Integrated-Tests

.github/workflows/cache_dependencies.yml

@@ -23,9 +23,10 @@ jobs:
           docker-images: true
 
       - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v2
         with:
-          java-version: "17.x"
+          distribution: "temurin"
+          java-version: "17"
       - name: Configure placeholder git details
         run: |
           git config --global user.email "CI@cakewallet.com"

.github/workflows/pr_test_build_android.yml

@@ -42,9 +42,10 @@ jobs:
           docker-images: true
 
       - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v2
         with:
-          java-version: "17.x"
+          distribution: "temurin"
+          java-version: "17"
       - name: Configure placeholder git details
         run: |
           git config --global user.email "CI@cakewallet.com"
@@ -170,6 +171,10 @@ jobs:
           echo "const nanoNowNodesApiKey = '${{ secrets.NANO_NOW_NODES_API_KEY }}';" >> cw_nano/lib/.secrets.g.dart
           echo "const tronGridApiKey = '${{ secrets.TRON_GRID_API_KEY }}';" >> cw_tron/lib/.secrets.g.dart
           echo "const tronNowNodesApiKey = '${{ secrets.TRON_NOW_NODES_API_KEY }}';" >> cw_tron/lib/.secrets.g.dart
+          echo "const letsExchangeBearerToken = '${{ secrets.LETS_EXCHANGE_TOKEN }}';" >> lib/.secrets.g.dart
+          echo "const letsExchangeAffiliateId = '${{ secrets.LETS_EXCHANGE_AFFILIATE_ID }}';" >> lib/.secrets.g.dart
+          echo "const stealthExBearerToken = '${{ secrets.STEALTH_EX_BEARER_TOKEN }}';" >> lib/.secrets.g.dart
+          echo "const stealthExAdditionalFeePercent = '${{ secrets.STEALTH_EX_ADDITIONAL_FEE_PERCENT }}';" >> lib/.secrets.g.dart
 
       - name: Rename app
         run: |

.github/workflows/pr_test_build_linux.yml

@@ -154,6 +154,10 @@ jobs:
           echo "const nanoNowNodesApiKey = '${{ secrets.NANO_NOW_NODES_API_KEY }}';" >> cw_nano/lib/.secrets.g.dart
           echo "const tronGridApiKey = '${{ secrets.TRON_GRID_API_KEY }}';" >> cw_tron/lib/.secrets.g.dart
           echo "const tronNowNodesApiKey = '${{ secrets.TRON_NOW_NODES_API_KEY }}';" >> cw_tron/lib/.secrets.g.dart
+          echo "const letsExchangeBearerToken = '${{ secrets.LETS_EXCHANGE_TOKEN }}';" >> lib/.secrets.g.dart
+          echo "const letsExchangeAffiliateId = '${{ secrets.LETS_EXCHANGE_AFFILIATE_ID }}';" >> lib/.secrets.g.dart
+          echo "const stealthExBearerToken = '${{ secrets.STEALTH_EX_BEARER_TOKEN }}';" >> lib/.secrets.g.dart
+          echo "const stealthExAdditionalFeePercent = '${{ secrets.STEALTH_EX_ADDITIONAL_FEE_PERCENT }}';" >> lib/.secrets.g.dart
 
       - name: Rename app
         run: |

README.md

@@ -161,7 +161,9 @@ The only parts to be translated, if needed, are the values m and s after the var
 
 4. Add the language to `lib/entities/language_service.dart` under both `supportedLocales` and `localeCountryCode`. Use the name of the language in the local language and in English in parentheses after for `supportedLocales`. Use the [ISO 3166-1 alpha-3 code](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3) for `localeCountryCode`. You must choose one country, so choose the country with the most native speakers of this language or is otherwise best associated with this language.
 
-5. Add a relevant flag to `assets/images/flags/XXXX.png`, replacing XXXX with the 3 digit localeCountryCode. The image must be 42x26 pixels with a 3 pixels of transparent margin on all 4 sides. You can resize the flag with [paint.net](https://www.getpaint.net/) to 36x20 pixels, expand the canvas to 42x26 pixels with the flag anchored in the middle, and then manually delete the 3 pixels on each side to make transparent. Or you can use another program like Photoshop.
+5. Add a relevant flag to `assets/images/flags/XXXX.png`, replacing XXXX with the 3 letters localeCountryCode. The image must be 42x26 pixels with a 3 pixels of transparent margin on all 4 sides. You can resize the flag with [paint.net](https://www.getpaint.net/) to 36x20 pixels, expand the canvas to 42x26 pixels with the flag anchored in the middle, and then manually delete the 3 pixels on each side to make transparent. Or you can use another program like Photoshop.
+
+6. Add the new language code to `tool/utils/translation/translation_constants.dart`
 
 ## Add a new fiat currency
 

analysis_options.yaml

@@ -10,7 +10,18 @@ analyzer:
     lib/generated/*.dart,
     cw_monero/ios/External/**,
     cw_shared_external/**,
-    shared_external/**]
+    shared_external/**,
+    lib/bitcoin/cw_bitcoin.dart,
+    lib/bitcoin_cash/cw_bitcoin_cash.dart,
+    lib/ethereum/cw_ethereum.dart,
+    lib/haven/cw_haven.dart,
+    lib/monero/cw_monero.dart,
+    lib/nano/cw_nano.dart,
+    lib/polygon/cw_polygon.dart,
+    lib/solana/cw_solana.dart,
+    lib/tron/cw_tron.dart,
+    lib/wownero/cw_wownero.dart,
+    ]
   language:
     strict-casts: true
     strict-raw-types: true

assets/images/letsexchange_icon.svg

@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" width="32" height="32">
+    <path fill-rule="evenodd" clip-rule="evenodd"
+        d="M16 1.37854C16 0.764286 16.6636 0.379192 17.1969 0.68395L23 4L29.4961 7.71208C29.8077 7.89012 30 8.22147 30 8.58032V16L23.9923 12.567C23.3774 12.2157 22.6226 12.2157 22.0077 12.567L16 16V8V1.37854ZM2 16V8.58032C2 8.22147 2.19229 7.89012 2.50386 7.71208L8.00772 4.56702C8.62259 4.21566 9.37741 4.21566 9.99228 4.56702L16 8L2 16ZM16 30.6215C16 31.2357 15.3364 31.6208 14.8031 31.3161L9 28L2.50386 24.2879C2.19229 24.1099 2 23.7785 2 23.4197V16L8.00772 19.433C8.62259 19.7843 9.37741 19.7843 9.99228 19.433L16 16V24V30.6215ZM22.0077 27.433C22.6226 27.7843 23.3774 27.7843 23.9923 27.433L29.4961 24.2879C29.8077 24.1099 30 23.7785 30 23.4197V16L16 24L22.0077 27.433Z"
+        fill="#159DFF"></path>
+</svg>

assets/node_list.yml

@@ -17,6 +17,3 @@
 -
   uri: node.community.rino.io:18081
   is_default: false
--
-  uri: node.moneroworld.com:18089
-  is_default: false

assets/text/Monerocom_Release_Notes.txt

@@ -1,3 +1,2 @@
-Scan and verify messages
-Synchronization enhancements
-Bug fixes
+Enhance auto-address generation for Monero
+Bug fixes and enhancements

assets/text/Release_Notes.txt

@@ -1,3 +1,4 @@
-Scan and verify messages
-Synchronization enhancements
-Bug fixes
+Enable BIP39 by default for wallet creation also on Bitcoin/Litecoin (Electrum seed type is still accessible through advanced settings page)
+Improve fee calculation for Bitcoin to protect against overpaying or underpaying
+Enhance auto-address generation for Monero
+Bug fixes and enhancements

cw_bitcoin/lib/bitcoin_mnemonic.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:math';
 import 'dart:typed_data';
+
 import 'package:crypto/crypto.dart';
 import 'package:cryptography/cryptography.dart' as cryptography;
 import 'package:cw_core/sec_random_native.dart';
@@ -59,11 +60,7 @@ void maskBytes(Uint8List bytes, int bits) {
   }
 }
 
-String bufferToBin(Uint8List data) {
-  final q1 = data.map((e) => e.toRadixString(2).padLeft(8, '0'));
-  final q2 = q1.join('');
-  return q2;
-}
+String bufferToBin(Uint8List data) => data.map((e) => e.toRadixString(2).padLeft(8, '0')).join('');
 
 String encode(Uint8List data) {
   final dataBitLen = data.length * 8;
@@ -112,17 +109,18 @@ Future<bool> checkIfMnemonicIsElectrum2(String mnemonic) async {
 Future<String> getMnemonicHash(String mnemonic) async {
   final hmacSha512 = Hmac(sha512, utf8.encode('Seed version'));
   final digest = hmacSha512.convert(utf8.encode(normalizeText(mnemonic)));
-  final hx = digest.toString();
-  return hx;
+  return digest.toString();
 }
 
-Future<Uint8List> mnemonicToSeedBytes(String mnemonic, {String prefix = segwit}) async {
+Future<Uint8List> mnemonicToSeedBytes(String mnemonic,
+    {String prefix = segwit, String passphrase = ''}) async {
   final pbkdf2 =
       cryptography.Pbkdf2(macAlgorithm: cryptography.Hmac.sha512(), iterations: 2048, bits: 512);
   final text = normalizeText(mnemonic);
-  // pbkdf2.deriveKey(secretKey: secretKey, nonce: nonce)
+  final passphraseBytes = utf8.encode(normalizeText(passphrase));
   final key = await pbkdf2.deriveKey(
-      secretKey: cryptography.SecretKey(text.codeUnits), nonce: 'electrum'.codeUnits);
+      secretKey: cryptography.SecretKey(text.codeUnits),
+      nonce: [...'electrum'.codeUnits, ...passphraseBytes]);
   final bytes = await key.extractBytes();
   return Uint8List.fromList(bytes);
 }

cw_bitcoin/lib/bitcoin_mnemonics_bip39.dart

@@ -7,5 +7,6 @@ class MnemonicBip39 {
   static String generate({int strength = 128}) => bip39.generateMnemonic(strength: strength);
 
   /// Create root seed from mnemonic
-  static Uint8List toSeed(String mnemonic) => bip39.mnemonicToSeed(mnemonic);
+  static Uint8List toSeed(String mnemonic, {String? passphrase}) =>
+      bip39.mnemonicToSeed(mnemonic, passphrase: passphrase ?? '');
 }

cw_bitcoin/lib/bitcoin_wallet.dart

@@ -115,7 +115,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
         break;
       case DerivationType.electrum:
       default:
-        seedBytes = await mnemonicToSeedBytes(mnemonic);
+        seedBytes = await mnemonicToSeedBytes(mnemonic, passphrase: passphrase ?? "");
         break;
     }
     return BitcoinWallet(
@@ -195,7 +195,7 @@ abstract class BitcoinWalletBase extends ElectrumWallet with Store {
     if (mnemonic != null) {
       switch (walletInfo.derivationInfo!.derivationType) {
         case DerivationType.electrum:
-          seedBytes = await mnemonicToSeedBytes(mnemonic);
+          seedBytes = await mnemonicToSeedBytes(mnemonic, passphrase: passphrase ?? "");
           break;
         case DerivationType.bip39:
         default:

cw_bitcoin/lib/bitcoin_wallet_creation_credentials.dart

@@ -3,16 +3,18 @@ import 'package:cw_core/wallet_credentials.dart';
 import 'package:cw_core/wallet_info.dart';
 
 class BitcoinNewWalletCredentials extends WalletCredentials {
-  BitcoinNewWalletCredentials(
-      {required String name,
+  BitcoinNewWalletCredentials({
+    required String name,
     WalletInfo? walletInfo,
     String? password,
     DerivationType? derivationType,
-      String? derivationPath})
-      : super(
+    String? derivationPath,
+    String? passphrase,
+  }) : super(
           name: name,
           walletInfo: walletInfo,
           password: password,
+          passphrase: passphrase,
         );
 }
 

cw_bitcoin/lib/bitcoin_wallet_service.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 import 'package:bitcoin_base/bitcoin_base.dart';
 import 'package:cw_bitcoin/bitcoin_mnemonic.dart';
+import 'package:cw_bitcoin/bitcoin_mnemonics_bip39.dart';
 import 'package:cw_bitcoin/mnemonic_is_incorrect_exception.dart';
 import 'package:cw_bitcoin/bitcoin_wallet_creation_credentials.dart';
 import 'package:cw_core/encryption_file_utils.dart';
@@ -35,8 +36,21 @@ class BitcoinWalletService extends WalletService<
     final network = isTestnet == true ? BitcoinNetwork.testnet : BitcoinNetwork.mainnet;
     credentials.walletInfo?.network = network.value;
 
+    final String mnemonic;
+    switch ( credentials.walletInfo?.derivationInfo?.derivationType) {
+      case DerivationType.bip39:
+        final strength = credentials.seedPhraseLength == 24 ? 256 : 128;
+
+        mnemonic = await MnemonicBip39.generate(strength: strength);
+        break;
+      case DerivationType.electrum:
+      default:
+        mnemonic = await generateElectrumMnemonic();
+        break;
+    }
+
     final wallet = await BitcoinWalletBase.create(
-      mnemonic: await generateElectrumMnemonic(),
+      mnemonic: mnemonic,
       password: credentials.password!,
       passphrase: credentials.passphrase,
       walletInfo: credentials.walletInfo!,

cw_bitcoin/lib/electrum.dart

@@ -107,21 +107,20 @@ class ElectrumClient {
         }
       },
       onError: (Object error) {
-        socket = null;
         final errorMsg = error.toString();
         print(errorMsg);
         unterminatedString = '';
-
-        final currentHost = socket?.address.host;
-        final isErrorForCurrentHost = errorMsg.contains(" ${currentHost} ");
-
-        if (currentHost != null && isErrorForCurrentHost)
-          _setConnectionStatus(ConnectionStatus.failed);
       },
       onDone: () {
-        socket = null;
         unterminatedString = '';
-        if (host == socket?.address.host) _setConnectionStatus(ConnectionStatus.disconnected);
+        try {
+          if (host == socket?.address.host) {
+            socket?.destroy();
+            _setConnectionStatus(ConnectionStatus.disconnected);
+          }
+        } catch(e) {
+          print(e.toString());
+        }
       },
       cancelOnError: true,
     );
@@ -434,7 +433,6 @@ class ElectrumClient {
       {required String id, required String method, List<Object> params = const []}) {
     try {
       if (socket == null) {
-        _setConnectionStatus(ConnectionStatus.failed);
         return null;
       }
       final subscription = BehaviorSubject<T>();
@@ -451,7 +449,6 @@ class ElectrumClient {
   Future<dynamic> call(
       {required String method, List<Object> params = const [], Function(int)? idCallback}) async {
     if (socket == null) {
-      _setConnectionStatus(ConnectionStatus.failed);
       return null;
     }
     final completer = Completer<dynamic>();
@@ -465,10 +462,9 @@ class ElectrumClient {
   }
 
   Future<dynamic> callWithTimeout(
-      {required String method, List<Object> params = const [], int timeout = 4000}) async {
+      {required String method, List<Object> params = const [], int timeout = 5000}) async {
     try {
       if (socket == null) {
-        _setConnectionStatus(ConnectionStatus.failed);
         return null;
       }
       final completer = Completer<dynamic>();

cw_bitcoin/lib/electrum_derivations.dart

@@ -109,5 +109,4 @@ Map<DerivationType, List<DerivationInfo>> electrum_derivations = {
   ],
 };
 
-
 String electrum_path = electrum_derivations[DerivationType.electrum]!.first.derivationPath!;

cw_bitcoin/lib/electrum_transaction_info.dart

@@ -1,3 +1,5 @@
+import 'dart:convert';
+
 import 'package:bitcoin_base/bitcoin_base.dart';
 import 'package:cw_bitcoin/address_from_output.dart';
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
@@ -7,10 +9,12 @@ import 'package:cw_core/transaction_direction.dart';
 import 'package:cw_core/transaction_info.dart';
 import 'package:cw_core/format_amount.dart';
 import 'package:cw_core/wallet_type.dart';
+import 'package:hex/hex.dart';
 
 class ElectrumTransactionBundle {
   ElectrumTransactionBundle(this.originalTransaction,
       {required this.ins, required this.confirmations, this.time});
+
   final BtcTransaction originalTransaction;
   final List<BtcTransaction> ins;
   final int? time;
@@ -125,7 +129,24 @@ class ElectrumTransactionInfo extends TransactionInfo {
     for (final out in bundle.originalTransaction.outputs) {
       totalOutAmount += out.amount.toInt();
       final addressExists = addresses.contains(addressFromOutputScript(out.scriptPubKey, network));
-      outputAddresses.add(addressFromOutputScript(out.scriptPubKey, network));
+      final address = addressFromOutputScript(out.scriptPubKey, network);
+
+      if (address.isNotEmpty) outputAddresses.add(address);
+
+      // Check if the script contains OP_RETURN
+      final script = out.scriptPubKey.script;
+      if (script.contains('OP_RETURN')) {
+        final index = script.indexOf('OP_RETURN');
+        if (index + 1 <= script.length) {
+          try {
+            final opReturnData = script[index + 1].toString();
+            final decodedString = utf8.decode(HEX.decode(opReturnData));
+            outputAddresses.add('OP_RETURN:$decodedString');
+          } catch (_) {
+            outputAddresses.add('OP_RETURN:');
+          }
+        }
+      }
 
       if (addressExists) {
         receivedAmounts.add(out.amount.toInt());
@@ -235,6 +256,6 @@ class ElectrumTransactionInfo extends TransactionInfo {
   }
 
   String toString() {
-    return 'ElectrumTransactionInfo(id: $id, height: $height, amount: $amount, fee: $fee, direction: $direction, date: $date, isPending: $isPending, confirmations: $confirmations, to: $to, unspent: $unspents)';
+    return 'ElectrumTransactionInfo(id: $id, height: $height, amount: $amount, fee: $fee, direction: $direction, date: $date, isPending: $isPending, confirmations: $confirmations, to: $to, unspent: $unspents, inputAddresses: $inputAddresses, outputAddresses: $outputAddresses)';
   }
 }

cw_bitcoin/lib/electrum_wallet.dart

@@ -5,6 +5,7 @@ import 'dart:isolate';
 import 'dart:math';
 
 import 'package:bitcoin_base/bitcoin_base.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import 'package:cw_core/encryption_file_utils.dart';
 import 'package:blockchain_utils/blockchain_utils.dart';
 import 'package:collection/collection.dart';
@@ -42,8 +43,9 @@ import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
 import 'package:rxdart/subjects.dart';
-import 'package:http/http.dart' as http;
 import 'package:sp_scanner/sp_scanner.dart';
+import 'package:hex/hex.dart';
+import 'package:http/http.dart' as http;
 
 part 'electrum_wallet.g.dart';
 
@@ -89,7 +91,7 @@ abstract class ElectrumWalletBase
               }
             : {}),
         this.unspentCoinsInfo = unspentCoinsInfo,
-        this.isTestnet = network == BitcoinNetwork.testnet,
+        this.isTestnet = !network.isMainnet,
         this._mnemonic = mnemonic,
         super(walletInfo) {
     this.electrumClient = electrumClient ?? ElectrumClient();
@@ -101,6 +103,8 @@ abstract class ElectrumWalletBase
     );
 
     reaction((_) => syncStatus, _syncStatusReaction);
+
+    sharedPrefs.complete(SharedPreferences.getInstance());
   }
 
   static Bip32Slip10Secp256k1 getAccountHDWallet(CryptoCurrency? currency, BasedUtxoNetwork network,
@@ -133,9 +137,12 @@ abstract class ElectrumWalletBase
   final String? _mnemonic;
 
   Bip32Slip10Secp256k1 get hd => accountHD.childKey(Bip32KeyIndex(0));
+
   Bip32Slip10Secp256k1 get sideHd => accountHD.childKey(Bip32KeyIndex(1));
 
   final EncryptionFileUtils encryptionFileUtils;
+
+  @override
   final String? passphrase;
 
   @override
@@ -182,7 +189,7 @@ abstract class ElectrumWalletBase
   BasedUtxoNetwork network;
 
   @override
-  bool? isTestnet;
+  bool isTestnet;
 
   bool get hasSilentPaymentsScanning => type == WalletType.bitcoin;
 
@@ -193,6 +200,13 @@ abstract class ElectrumWalletBase
 
   bool _isTryingToConnect = false;
 
+  Completer<SharedPreferences> sharedPrefs = Completer();
+
+  Future<bool> checkIfMempoolAPIIsEnabled() async {
+    bool isMempoolAPIEnabled = (await sharedPrefs.future).getBool("use_mempool_fee_api") ?? true;
+    return isMempoolAPIEnabled;
+  }
+
   @action
   Future<void> setSilentPaymentsScanning(bool active) async {
     silentPaymentsScanningActive = active;
@@ -262,7 +276,6 @@ abstract class ElectrumWalletBase
   Future<Isolate>? _isolate;
 
   void Function(FlutterErrorDetails)? _onError;
-  Timer? _reconnectTimer;
   Timer? _autoSaveTimer;
   Timer? _updateFeeRateTimer;
   static const int _autoSaveInterval = 1;
@@ -415,6 +428,10 @@ abstract class ElectrumWalletBase
   @override
   Future<void> startSync() async {
     try {
+      if (syncStatus is SyncronizingSyncStatus) {
+        return;
+      }
+
       syncStatus = SyncronizingSyncStatus();
 
       if (hasSilentPaymentsScanning) {
@@ -426,7 +443,7 @@ abstract class ElectrumWalletBase
       await updateTransactions();
       await updateAllUnspents();
       await updateBalance();
-      updateFeeRates();
+      await updateFeeRates();
 
       _updateFeeRateTimer ??=
           Timer.periodic(const Duration(minutes: 1), (timer) async => await updateFeeRates());
@@ -445,9 +462,25 @@ abstract class ElectrumWalletBase
 
   @action
   Future<void> updateFeeRates() async {
+    if (await checkIfMempoolAPIIsEnabled()) {
+      try {
+        final response =
+            await http.get(Uri.parse("http://mempool.cakewallet.com:8999/api/v1/fees/recommended"));
+
+        final result = json.decode(response.body) as Map<String, num>;
+        final slowFee = result['economyFee']?.toInt() ?? 0;
+        final mediumFee = result['hourFee']?.toInt() ?? 0;
+        final fastFee = result['fastestFee']?.toInt() ?? 0;
+        _feeRates = [slowFee, mediumFee, fastFee];
+        return;
+      } catch (_) {}
+    }
+
     final feeRates = await electrumClient.feeRates(network: network);
     if (feeRates != [0, 0, 0]) {
       _feeRates = feeRates;
+    } else if (isTestnet) {
+      _feeRates = [1, 1, 1];
     }
   }
 
@@ -1005,7 +1038,7 @@ abstract class ElectrumWalletBase
         if (estimatedTx.inputPrivKeyInfos.isEmpty) {
           error += "\nNo private keys generated.";
         } else {
-          error += "\nAddress: ${utxo.ownerDetails.address.toAddress()}";
+          error += "\nAddress: ${utxo.ownerDetails.address.toAddress(network)}";
 
           key = estimatedTx.inputPrivKeyInfos.firstWhereOrNull((element) {
             final elemPubkey = element.privkey.getPublic().toHex();
@@ -1056,6 +1089,8 @@ abstract class ElectrumWalletBase
             });
           }
 
+          unspentCoins.removeWhere((utxo) => estimatedTx.utxos.any((e) => e.utxo.txHash == utxo.hash));
+
           await updateBalance();
         });
     } catch (e) {
@@ -1362,26 +1397,15 @@ abstract class ElectrumWalletBase
     }
   }
 
-  Future<bool> canReplaceByFee(String hash) async {
-    final verboseTransaction = await electrumClient.getTransactionVerbose(hash: hash);
-
-    final String? transactionHex;
-    int confirmations = 0;
-
-    if (verboseTransaction.isEmpty) {
-      transactionHex = await electrumClient.getTransactionHex(hash: hash);
-    } else {
-      confirmations = verboseTransaction['confirmations'] as int? ?? 0;
-      transactionHex = verboseTransaction['hex'] as String?;
-    }
-
-    if (confirmations > 0) return false;
-
-    if (transactionHex == null || transactionHex.isEmpty) {
+  Future<bool> canReplaceByFee(ElectrumTransactionInfo tx) async {
+    try {
+      final bundle = await getTransactionExpanded(hash: tx.txHash);
+      _updateInputsAndOutputs(tx, bundle);
+      if (bundle.confirmations > 0) return false;
+      return bundle.originalTransaction.canReplaceByFee;
+    } catch (e) {
       return false;
     }
-
-    return BtcTransaction.fromRaw(transactionHex).canReplaceByFee;
   }
 
   Future<bool> isChangeSufficientForFee(String txId, int newFee) async {
@@ -1422,6 +1446,7 @@ abstract class ElectrumWalletBase
       List<ECPrivate> privateKeys = [];
 
       var allInputsAmount = 0;
+      String? memo;
 
       // Add inputs
       for (var i = 0; i < bundle.originalTransaction.inputs.length; i++) {
@@ -1457,53 +1482,82 @@ abstract class ElectrumWalletBase
         );
       }
 
-      int totalOutAmount = bundle.originalTransaction.outputs
-          .fold<int>(0, (previousValue, element) => previousValue + element.amount.toInt());
-
-      var currentFee = allInputsAmount - totalOutAmount;
-      int remainingFee = newFee - currentFee;
-
+      // Create a list of available outputs
       final outputs = <BitcoinOutput>[];
+      for (final out in bundle.originalTransaction.outputs) {
+        // Check if the script contains OP_RETURN
+        final script = out.scriptPubKey.script;
+        if (script.contains('OP_RETURN') && memo == null) {
+          final index = script.indexOf('OP_RETURN');
+          if (index + 1 <= script.length) {
+            try {
+              final opReturnData = script[index + 1].toString();
+              memo = utf8.decode(HEX.decode(opReturnData));
+              continue;
+            } catch (_) {
+              throw Exception('Cannot decode OP_RETURN data');
+            }
+          }
+        }
 
-      // Add outputs and deduct the fees from it
-      for (int i = bundle.originalTransaction.outputs.length - 1; i >= 0; i--) {
-        final out = bundle.originalTransaction.outputs[i];
         final address = addressFromOutputScript(out.scriptPubKey, network);
         final btcAddress = addressTypeFromStr(address, network);
-
-        int newAmount;
-        if (out.amount.toInt() >= remainingFee) {
-          newAmount = out.amount.toInt() - remainingFee;
-          remainingFee = 0;
-
-          // if new amount of output is less than dust amount, then don't add this output as well
-          if (newAmount <= _dustAmount) {
-            continue;
-          }
-        } else {
-          remainingFee -= out.amount.toInt();
-          continue;
+        outputs.add(BitcoinOutput(address: btcAddress, value: BigInt.from(out.amount.toInt())));
       }
 
-        outputs.add(BitcoinOutput(address: btcAddress, value: BigInt.from(newAmount)));
+      // Calculate the total amount and fees
+      int totalOutAmount =
+          outputs.fold<int>(0, (previousValue, output) => previousValue + output.value.toInt());
+      int currentFee = allInputsAmount - totalOutAmount;
+      int remainingFee = newFee - currentFee;
+
+      if (remainingFee <= 0) {
+        throw Exception("New fee must be higher than the current fee.");
       }
 
+      // Deduct Remaining Fee from Main Outputs
+      if (remainingFee > 0) {
+        for (int i = outputs.length - 1; i >= 0; i--) {
+          int outputAmount = outputs[i].value.toInt();
+
+          if (outputAmount > _dustAmount) {
+            int deduction = (outputAmount - _dustAmount >= remainingFee)
+                ? remainingFee
+                : outputAmount - _dustAmount;
+            outputs[i] = BitcoinOutput(
+                address: outputs[i].address, value: BigInt.from(outputAmount - deduction));
+            remainingFee -= deduction;
+
+            if (remainingFee <= 0) break;
+          }
+        }
+      }
+
+      // Final check if the remaining fee couldn't be deducted
+      if (remainingFee > 0) {
+        throw Exception("Not enough funds to cover the fee.");
+      }
+
+      // Identify all change outputs
       final changeAddresses = walletAddresses.allAddresses.where((element) => element.isHidden);
+      final List<BitcoinOutput> changeOutputs = outputs
+          .where((output) => changeAddresses
+              .any((element) => element.address == output.address.toAddress(network)))
+          .toList();
 
-      // look for a change address in the outputs
-      final changeOutput = outputs.firstWhereOrNull((output) =>
-          changeAddresses.any((element) => element.address == output.address.toAddress(network)));
+      int totalChangeAmount =
+          changeOutputs.fold<int>(0, (sum, output) => sum + output.value.toInt());
 
-      // deduct the change amount from the output amount
-      if (changeOutput != null) {
-        totalOutAmount -= changeOutput.value.toInt();
-      }
+      // The final amount that the receiver will receive
+      int sendingAmount = allInputsAmount - newFee - totalChangeAmount;
 
       final txb = BitcoinTransactionBuilder(
         utxos: utxos,
         outputs: outputs,
         fee: BigInt.from(newFee),
         network: network,
+        memo: memo,
+        outputOrdering: BitcoinOrdering.none,
         enableRBF: true,
       );
 
@@ -1526,10 +1580,10 @@ abstract class ElectrumWalletBase
         transaction,
         type,
         electrumClient: electrumClient,
-        amount: totalOutAmount,
+        amount: sendingAmount,
         fee: newFee,
         network: network,
-        hasChange: changeOutput != null,
+        hasChange: changeOutputs.isNotEmpty,
         feeRate: newFee.toString(),
       )..addListener((transaction) async {
           transactionHistory.addOne(transaction);
@@ -1944,8 +1998,9 @@ abstract class ElectrumWalletBase
   Future<void> _setInitialHeight() async {
     if (_chainTipUpdateSubject != null) return;
 
+    _currentChainTip = await getUpdatedChainTip();
+
     if ((_currentChainTip == null || _currentChainTip! == 0) && walletInfo.restoreHeight == 0) {
-      await getUpdatedChainTip();
       await walletInfo.updateRestoreHeight(_currentChainTip!);
     }
 
@@ -2005,9 +2060,8 @@ abstract class ElectrumWalletBase
 
       _isTryingToConnect = true;
 
-      _reconnectTimer?.cancel();
-      _reconnectTimer = Timer(Duration(seconds: 10), () {
-        if (this.syncStatus is! SyncedSyncStatus && this.syncStatus is! SyncedTipSyncStatus) {
+      Timer(Duration(seconds: 5), () {
+        if (this.syncStatus is NotConnectedSyncStatus || this.syncStatus is LostConnectionSyncStatus) {
           this.electrumClient.connectToUri(
                 node!.uri,
                 useSSL: node!.useSSL ?? false,
@@ -2024,6 +2078,54 @@ abstract class ElectrumWalletBase
       });
     }
   }
+
+  void _updateInputsAndOutputs(ElectrumTransactionInfo tx, ElectrumTransactionBundle bundle) {
+    tx.inputAddresses = tx.inputAddresses?.where((address) => address.isNotEmpty).toList();
+
+    if (tx.inputAddresses == null ||
+        tx.inputAddresses!.isEmpty ||
+        tx.outputAddresses == null ||
+        tx.outputAddresses!.isEmpty) {
+      List<String> inputAddresses = [];
+      List<String> outputAddresses = [];
+
+      for (int i = 0; i < bundle.originalTransaction.inputs.length; i++) {
+        final input = bundle.originalTransaction.inputs[i];
+        final inputTransaction = bundle.ins[i];
+        final vout = input.txIndex;
+        final outTransaction = inputTransaction.outputs[vout];
+        final address = addressFromOutputScript(outTransaction.scriptPubKey, network);
+
+        if (address.isNotEmpty) inputAddresses.add(address);
+      }
+
+      for (int i = 0; i < bundle.originalTransaction.outputs.length; i++) {
+        final out = bundle.originalTransaction.outputs[i];
+        final address = addressFromOutputScript(out.scriptPubKey, network);
+
+        if (address.isNotEmpty) outputAddresses.add(address);
+
+        // Check if the script contains OP_RETURN
+        final script = out.scriptPubKey.script;
+        if (script.contains('OP_RETURN')) {
+          final index = script.indexOf('OP_RETURN');
+          if (index + 1 <= script.length) {
+            try {
+              final opReturnData = script[index + 1].toString();
+              final decodedString = utf8.decode(HEX.decode(opReturnData));
+              outputAddresses.add('OP_RETURN:$decodedString');
+            } catch (_) {
+              outputAddresses.add('OP_RETURN:');
+            }
+          }
+        }
+      }
+      tx.inputAddresses = inputAddresses;
+      tx.outputAddresses = outputAddresses;
+
+      transactionHistory.addOne(tx);
+    }
+  }
 }
 
 class ScanNode {

cw_bitcoin/lib/litecoin_wallet.dart

@@ -7,6 +7,7 @@ import 'package:bip39/bip39.dart' as bip39;
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
 import 'package:cw_bitcoin/bitcoin_mnemonic.dart';
 import 'package:cw_bitcoin/bitcoin_transaction_priority.dart';
+import 'package:cw_bitcoin/electrum_derivations.dart';
 import 'package:cw_core/encryption_file_utils.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cw_core/unspent_coins_info.dart';
@@ -36,6 +37,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
     required Box<UnspentCoinsInfo> unspentCoinsInfo,
     required Uint8List seedBytes,
     required EncryptionFileUtils encryptionFileUtils,
+    String? passphrase,
     String? addressPageType,
     List<BitcoinAddressRecord>? initialAddresses,
     ElectrumBalance? initialBalance,
@@ -51,6 +53,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
             initialBalance: initialBalance,
             seedBytes: seedBytes,
             encryptionFileUtils: encryptionFileUtils,
+            passphrase: passphrase,
             currency: CryptoCurrency.ltc) {
     walletAddresses = LitecoinWalletAddresses(
       walletInfo,
@@ -89,7 +92,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
         break;
       case DerivationType.electrum:
       default:
-        seedBytes = await mnemonicToSeedBytes(mnemonic);
+        seedBytes = await mnemonicToSeedBytes(mnemonic, passphrase: passphrase ?? "");
         break;
     }
     return LitecoinWallet(
@@ -100,6 +103,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
       initialAddresses: initialAddresses,
       initialBalance: initialBalance,
       encryptionFileUtils: encryptionFileUtils,
+      passphrase: passphrase,
       seedBytes: seedBytes,
       initialRegularAddressIndex: initialRegularAddressIndex,
       initialChangeAddressIndex: initialChangeAddressIndex,
@@ -143,6 +147,31 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
       );
     }
 
+    walletInfo.derivationInfo ??= DerivationInfo();
+
+    // set the default if not present:
+    walletInfo.derivationInfo!.derivationPath ??= snp?.derivationPath ?? electrum_path;
+    walletInfo.derivationInfo!.derivationType ??= snp?.derivationType ?? DerivationType.electrum;
+
+    Uint8List? seedBytes = null;
+    final mnemonic = keysData.mnemonic;
+    final passphrase = keysData.passphrase;
+
+    if (mnemonic != null) {
+      switch (walletInfo.derivationInfo?.derivationType) {
+        case DerivationType.bip39:
+          seedBytes = await bip39.mnemonicToSeed(
+            mnemonic,
+            passphrase: passphrase ?? "",
+          );
+          break;
+        case DerivationType.electrum:
+        default:
+          seedBytes = await mnemonicToSeedBytes(mnemonic, passphrase: passphrase ?? "");
+          break;
+      }
+    }
+
     return LitecoinWallet(
       mnemonic: keysData.mnemonic!,
       password: password,
@@ -150,7 +179,8 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
       unspentCoinsInfo: unspentCoinsInfo,
       initialAddresses: snp?.addresses,
       initialBalance: snp?.balance,
-      seedBytes: await mnemonicToSeedBytes(keysData.mnemonic!),
+      seedBytes: seedBytes!,
+      passphrase: passphrase,
       encryptionFileUtils: encryptionFileUtils,
       initialRegularAddressIndex: snp?.regularAddressIndex,
       initialChangeAddressIndex: snp?.changeAddressIndex,

cw_bitcoin/lib/litecoin_wallet_service.dart

@@ -1,4 +1,5 @@
 import 'dart:io';
+import 'package:cw_bitcoin/bitcoin_mnemonics_bip39.dart';
 import 'package:cw_core/encryption_file_utils.dart';
 import 'package:cw_core/unspent_coins_info.dart';
 import 'package:hive/hive.dart';
@@ -30,8 +31,21 @@ class LitecoinWalletService extends WalletService<
 
   @override
   Future<LitecoinWallet> create(BitcoinNewWalletCredentials credentials, {bool? isTestnet}) async {
+    final String mnemonic;
+    switch ( credentials.walletInfo?.derivationInfo?.derivationType) {
+      case DerivationType.bip39:
+        final strength = credentials.seedPhraseLength == 24 ? 256 : 128;
+
+        mnemonic = await MnemonicBip39.generate(strength: strength);
+        break;
+      case DerivationType.electrum:
+      default:
+        mnemonic = await generateElectrumMnemonic();
+        break;
+    }
+
     final wallet = await LitecoinWalletBase.create(
-      mnemonic: await generateElectrumMnemonic(),
+      mnemonic: mnemonic,
       password: credentials.password!,
       passphrase: credentials.passphrase,
       walletInfo: credentials.walletInfo!,

cw_bitcoin/pubspec.lock

@@ -350,6 +350,11 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   frontend_server_client:
     dependency: transitive
     description:
@@ -736,6 +741,62 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.27.7"
+  shared_preferences:
+    dependency: "direct main"
+    description:
+      name: shared_preferences
+      sha256: d3bbe5553a986e83980916ded2f0b435ef2e1893dfaa29d5a7a790d0eca12180
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.3"
+  shared_preferences_android:
+    dependency: transitive
+    description:
+      name: shared_preferences_android
+      sha256: "1ee8bf911094a1b592de7ab29add6f826a7331fb854273d55918693d5364a1f2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
+  shared_preferences_foundation:
+    dependency: transitive
+    description:
+      name: shared_preferences_foundation
+      sha256: c4b35f6cb8f63c147312c054ce7c2254c8066745125264f0c88739c417fc9d9f
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.2"
+  shared_preferences_linux:
+    dependency: transitive
+    description:
+      name: shared_preferences_linux
+      sha256: "580abfd40f415611503cae30adf626e6656dfb2f0cee8f465ece7b6defb40f2f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      sha256: "57cbf196c486bc2cf1f02b85784932c6094376284b3ad5779d1b1c6c6a816b80"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      sha256: "59dc807b94d29d52ddbb1b3c0d3b9d0a67fc535a64e62a5542c8db0513fcb6c2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  shared_preferences_windows:
+    dependency: transitive
+    description:
+      name: shared_preferences_windows
+      sha256: "94ef0f72b2d71bc3e700e025db3710911bd51a71cefb65cc609dd0d9a982e3c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
   shelf:
     dependency: transitive
     description:
@@ -944,4 +1005,4 @@ packages:
     version: "2.2.1"
 sdks:
   dart: ">=3.3.0 <4.0.0"
-  flutter: ">=3.16.6"
+  flutter: ">=3.19.0"

cw_bitcoin/pubspec.yaml

@@ -17,6 +17,7 @@ dependencies:
   mobx: ^2.0.7+4
   flutter_mobx: ^2.0.6+1
   intl: ^0.18.0
+  shared_preferences: ^2.0.15
   cw_core:
     path: ../cw_core
   bitbox:

cw_bitcoin_cash/lib/src/bitcoin_cash_base.dart

@@ -3,5 +3,4 @@ export 'bitcoin_cash_wallet_addresses.dart';
 export 'bitcoin_cash_wallet_creation_credentials.dart';
 export 'bitcoin_cash_wallet_service.dart';
 export 'exceptions/exceptions.dart';
-export 'mnemonic.dart';
 export 'bitcoin_cash_address_utils.dart';

cw_bitcoin_cash/lib/src/bitcoin_cash_wallet.dart

@@ -1,13 +1,14 @@
 import 'package:bitbox/bitbox.dart' as bitbox;
 import 'package:bitcoin_base/bitcoin_base.dart';
 import 'package:blockchain_utils/blockchain_utils.dart';
-import 'package:cw_core/encryption_file_utils.dart';
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
+import 'package:cw_bitcoin/bitcoin_mnemonics_bip39.dart';
 import 'package:cw_bitcoin/bitcoin_transaction_priority.dart';
 import 'package:cw_bitcoin/electrum_balance.dart';
 import 'package:cw_bitcoin/electrum_wallet.dart';
 import 'package:cw_bitcoin/electrum_wallet_snapshot.dart';
 import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_core/encryption_file_utils.dart';
 import 'package:cw_core/transaction_priority.dart';
 import 'package:cw_core/unspent_coins_info.dart';
 import 'package:cw_core/wallet_info.dart';
@@ -30,6 +31,7 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
     required Box<UnspentCoinsInfo> unspentCoinsInfo,
     required Uint8List seedBytes,
     required EncryptionFileUtils encryptionFileUtils,
+    String? passphrase,
     BitcoinAddressType? addressPageType,
     List<BitcoinAddressRecord>? initialAddresses,
     ElectrumBalance? initialBalance,
@@ -45,7 +47,8 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
             initialBalance: initialBalance,
             seedBytes: seedBytes,
             currency: CryptoCurrency.bch,
-            encryptionFileUtils: encryptionFileUtils) {
+            encryptionFileUtils: encryptionFileUtils,
+            passphrase: passphrase) {
     walletAddresses = BitcoinCashWalletAddresses(
       walletInfo,
       initialAddresses: initialAddresses,
@@ -67,6 +70,7 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
       required WalletInfo walletInfo,
       required Box<UnspentCoinsInfo> unspentCoinsInfo,
       required EncryptionFileUtils encryptionFileUtils,
+      String? passphrase,
       String? addressPageType,
       List<BitcoinAddressRecord>? initialAddresses,
       ElectrumBalance? initialBalance,
@@ -79,11 +83,12 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
       unspentCoinsInfo: unspentCoinsInfo,
       initialAddresses: initialAddresses,
       initialBalance: initialBalance,
-      seedBytes: await MnemonicBip39.toSeed(mnemonic),
+      seedBytes: await MnemonicBip39.toSeed(mnemonic, passphrase: passphrase),
       encryptionFileUtils: encryptionFileUtils,
       initialRegularAddressIndex: initialRegularAddressIndex,
       initialChangeAddressIndex: initialChangeAddressIndex,
       addressPageType: P2pkhAddressType.p2pkh,
+      passphrase: passphrase,
     );
   }
 
@@ -150,11 +155,12 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
         }
       }).toList(),
       initialBalance: snp?.balance,
-      seedBytes: await MnemonicBip39.toSeed(keysData.mnemonic!),
+      seedBytes: await MnemonicBip39.toSeed(keysData.mnemonic!, passphrase: keysData.passphrase),
       encryptionFileUtils: encryptionFileUtils,
       initialRegularAddressIndex: snp?.regularAddressIndex,
       initialChangeAddressIndex: snp?.changeAddressIndex,
       addressPageType: P2pkhAddressType.p2pkh,
+      passphrase: keysData.passphrase,
     );
   }
 

cw_bitcoin_cash/lib/src/bitcoin_cash_wallet_creation_credentials.dart

@@ -2,17 +2,19 @@ import 'package:cw_core/wallet_credentials.dart';
 import 'package:cw_core/wallet_info.dart';
 
 class BitcoinCashNewWalletCredentials extends WalletCredentials {
-  BitcoinCashNewWalletCredentials({required String name, WalletInfo? walletInfo, String? password})
-      : super(name: name, walletInfo: walletInfo, password: password);
+  BitcoinCashNewWalletCredentials(
+      {required String name, WalletInfo? walletInfo, String? password, String? passphrase})
+      : super(name: name, walletInfo: walletInfo, password: password, passphrase: passphrase);
 }
 
 class BitcoinCashRestoreWalletFromSeedCredentials extends WalletCredentials {
-  BitcoinCashRestoreWalletFromSeedCredentials(
-      {required String name,
+  BitcoinCashRestoreWalletFromSeedCredentials({
+    required String name,
     required String password,
     required this.mnemonic,
-      WalletInfo? walletInfo})
-      : super(name: name, password: password, walletInfo: walletInfo);
+    WalletInfo? walletInfo,
+    String? passphrase,
+  }) : super(name: name, password: password, walletInfo: walletInfo, passphrase: passphrase);
 
   final String mnemonic;
 }

cw_bitcoin_cash/lib/src/bitcoin_cash_wallet_service.dart

@@ -1,6 +1,8 @@
 import 'dart:io';
 
 import 'package:bip39/bip39.dart';
+import 'package:collection/collection.dart';
+import 'package:cw_bitcoin/bitcoin_mnemonics_bip39.dart';
 import 'package:cw_bitcoin_cash/cw_bitcoin_cash.dart';
 import 'package:cw_core/encryption_file_utils.dart';
 import 'package:cw_core/pathForWallet.dart';
@@ -9,7 +11,6 @@ import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:cw_core/wallet_service.dart';
 import 'package:cw_core/wallet_type.dart';
-import 'package:collection/collection.dart';
 import 'package:hive/hive.dart';
 
 class BitcoinCashWalletService extends WalletService<
@@ -40,6 +41,7 @@ class BitcoinCashWalletService extends WalletService<
       walletInfo: credentials.walletInfo!,
       unspentCoinsInfo: unspentCoinsInfoSource,
       encryptionFileUtils: encryptionFileUtilsFor(isDirect),
+      passphrase: credentials.passphrase,
     );
     await wallet.save();
     await wallet.init();
@@ -130,7 +132,9 @@ class BitcoinCashWalletService extends WalletService<
         mnemonic: credentials.mnemonic,
         walletInfo: credentials.walletInfo!,
         unspentCoinsInfo: unspentCoinsInfoSource,
-        encryptionFileUtils: encryptionFileUtilsFor(isDirect));
+        encryptionFileUtils: encryptionFileUtilsFor(isDirect),
+        passphrase: credentials.passphrase
+    );
     await wallet.save();
     await wallet.init();
     return wallet;

cw_core/lib/wallet_base.dart

@@ -46,6 +46,8 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   String? get hexSeed => null;
 
+  String? get passphrase => null;
+
   Object get keys;
 
   WalletAddresses get walletAddresses;
@@ -95,5 +97,5 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   Future<bool> verifyMessage(String message, String signature, {String? address = null});
 
-  bool? isTestnet;
+  bool isTestnet = false;
 }

cw_monero/lib/api/transaction_history.dart

@@ -138,11 +138,17 @@ PendingTransactionDescription createTransactionMultDestSync(
     int accountIndex = 0,
     List<String> preferredInputs = const []}) {
   
+  final dstAddrs = outputs.map((e) => e.address).toList();
+  final amounts = outputs.map((e) => monero.Wallet_amountFromString(e.amount)).toList();
+
+  // print("multDest: dstAddrs: $dstAddrs");
+  // print("multDest: amounts: $amounts");
+
   final txptr = monero.Wallet_createTransactionMultDest(
     wptr!,
-    dstAddr: outputs.map((e) => e.address).toList(),
+    dstAddr: dstAddrs,
     isSweepAll: false,
-    amounts: outputs.map((e) => monero.Wallet_amountFromString(e.amount)).toList(),
+    amounts: amounts,
     mixinCount: 0,
     pendingTransactionPriority: priorityRaw,
     subaddr_account: accountIndex,
@@ -307,7 +313,34 @@ class Transaction {
         confirmations = monero.TransactionInfo_confirmations(txInfo),
         fee = monero.TransactionInfo_fee(txInfo),
         description = monero.TransactionInfo_description(txInfo),
-        key = monero.Wallet_getTxKey(wptr!, txid: monero.TransactionInfo_hash(txInfo));
+        key = getTxKey(txInfo);
+
+  static String getTxKey(monero.TransactionInfo txInfo) {
+    final txKey = monero.Wallet_getTxKey(wptr!, txid: monero.TransactionInfo_hash(txInfo));
+    final status = monero.Wallet_status(wptr!);
+    if (status != 0) {
+      return monero.Wallet_errorString(wptr!);
+    }
+    return breakTxKey(txKey);
+  }
+
+  static String breakTxKey(String input) {
+    final x = 64;
+    StringBuffer buffer = StringBuffer();
+
+    for (int i = 0; i < input.length; i += x) {
+      int endIndex = i + x;
+      if (endIndex > input.length) {
+        endIndex = input.length;
+      }
+      buffer.write(input.substring(i, endIndex));
+      if (endIndex != input.length) {
+        buffer.write('\n\n');
+      }
+    }
+
+    return buffer.toString().trim();
+  }
 
   Transaction.dummy({
     required this.displayLabel,

cw_monero/lib/monero_wallet.dart

@@ -13,11 +13,9 @@ import 'package:cw_core/monero_transaction_priority.dart';
 import 'package:cw_core/monero_wallet_keys.dart';
 import 'package:cw_core/monero_wallet_utils.dart';
 import 'package:cw_core/node.dart';
-import 'package:cw_core/pathForWallet.dart';
 import 'package:cw_core/pending_transaction.dart';
 import 'package:cw_core/sync_status.dart';
 import 'package:cw_core/transaction_direction.dart';
-import 'package:cw_core/transaction_priority.dart';
 import 'package:cw_core/unspent_coins_info.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_info.dart';

cw_monero/lib/monero_wallet_service.dart

@@ -9,11 +9,9 @@ import 'package:cw_core/wallet_info.dart';
 import 'package:cw_core/wallet_service.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:cw_core/get_height_by_date.dart';
-import 'package:cw_monero/api/exceptions/wallet_opening_exception.dart';
 import 'package:cw_monero/api/wallet_manager.dart' as monero_wallet_manager;
 import 'package:cw_monero/api/wallet_manager.dart';
 import 'package:cw_monero/monero_wallet.dart';
-import 'package:flutter/widgets.dart';
 import 'package:hive/hive.dart';
 import 'package:polyseed/polyseed.dart';
 import 'package:monero/monero.dart' as monero;
@@ -120,7 +118,6 @@ class MoneroWalletService extends WalletService<
 
   @override
   Future<MoneroWallet> openWallet(String name, String password, {bool? retryOnFailure}) async {
-    MoneroWallet? wallet;
     try {
       final path = await pathForWallet(name: name, type: getType());
 
@@ -147,41 +144,10 @@ class MoneroWalletService extends WalletService<
       await wallet.init();
 
       return wallet;
-    } catch (e, s) {
+    } catch (e) {
       // TODO: Implement Exception for wallet list service.
 
-      final bool isBadAlloc = e.toString().contains('bad_alloc') ||
-          (e is WalletOpeningException &&
-              (e.message == 'std::bad_alloc' || e.message.contains('bad_alloc')));
-
-      final bool doesNotCorrespond = e.toString().contains('does not correspond') ||
-          (e is WalletOpeningException && e.message.contains('does not correspond'));
-
-      final bool isMissingCacheFilesIOS = e.toString().contains('basic_string') ||
-          (e is WalletOpeningException && e.message.contains('basic_string'));
-
-      final bool isMissingCacheFilesAndroid = e.toString().contains('input_stream') ||
-          e.toString().contains('input stream error') ||
-          (e is WalletOpeningException &&
-              (e.message.contains('input_stream') || e.message.contains('input stream error')));
-
-      final bool invalidSignature = e.toString().contains('invalid signature') ||
-          (e is WalletOpeningException && e.message.contains('invalid signature'));
-
-      final bool invalidPassword = e.toString().contains('invalid password') ||
-          (e is WalletOpeningException && e.message.contains('invalid password'));
-
-      if (!isBadAlloc &&
-          !doesNotCorrespond &&
-          !isMissingCacheFilesIOS &&
-          !isMissingCacheFilesAndroid &&
-          !invalidSignature &&
-          !invalidPassword &&
-          wallet != null &&
-          wallet.onError != null) {
-        wallet.onError!(FlutterErrorDetails(exception: e, stack: s));
-      }
-      if (invalidPassword || retryOnFailure == false) {
+      if (retryOnFailure == false) {
         rethrow;
       }
 

cw_monero/pubspec.lock

@@ -463,8 +463,8 @@ packages:
     dependency: "direct main"
     description:
       path: "impls/monero.dart"
-      ref: bcb328a4956105dc182afd0ce2e48fe263f5f20b
-      resolved-ref: bcb328a4956105dc182afd0ce2e48fe263f5f20b
+      ref: 3cb38bee9385faf46b03fd73aab85f3ac4115bf7
+      resolved-ref: 3cb38bee9385faf46b03fd73aab85f3ac4115bf7
       url: "https://github.com/mrcyjanek/monero_c"
     source: git
     version: "0.0.0"

cw_monero/pubspec.yaml

@@ -25,7 +25,7 @@ dependencies:
   monero:
     git:
       url: https://github.com/mrcyjanek/monero_c
-      ref: bcb328a4956105dc182afd0ce2e48fe263f5f20b # monero_c hash
+      ref: 3cb38bee9385faf46b03fd73aab85f3ac4115bf7 # monero_c hash
       path: impls/monero.dart
   mutex: ^3.1.0
 

cw_nano/lib/nano_client.dart

@@ -466,6 +466,7 @@ class NanoClient {
 
     blocks = blocks as Map<String, dynamic>;
 
+    try {
       // confirm all receivable blocks:
       for (final blockHash in blocks.keys) {
         final block = blocks[blockHash];
@@ -479,8 +480,11 @@ class NanoClient {
         // a bit of a hack:
         await Future<void>.delayed(const Duration(seconds: 2));
       }
-
       return blocks.keys.length;
+    } catch (_) {
+      // we failed to confirm all receivable blocks for w/e reason (PoW / node outage / etc)
+      return 0;
+    }
   }
 
   void stop() {}

cw_nano/lib/nano_wallet_service.dart

@@ -14,8 +14,11 @@ import 'package:bip39/bip39.dart' as bip39;
 import 'package:nanodart/nanodart.dart';
 import 'package:nanoutil/nanoutil.dart';
 
-class NanoWalletService extends WalletService<NanoNewWalletCredentials,
-    NanoRestoreWalletFromSeedCredentials, NanoRestoreWalletFromKeysCredentials, NanoNewWalletCredentials> {
+class NanoWalletService extends WalletService<
+    NanoNewWalletCredentials,
+    NanoRestoreWalletFromSeedCredentials,
+    NanoRestoreWalletFromKeysCredentials,
+    NanoNewWalletCredentials> {
   NanoWalletService(this.walletInfoSource, this.isDirect);
 
   final Box<WalletInfo> walletInfoSource;
@@ -33,8 +36,12 @@ class NanoWalletService extends WalletService<NanoNewWalletCredentials,
     String seedKey = NanoSeeds.generateSeed();
     String mnemonic = NanoDerivations.standardSeedToMnemonic(seedKey);
 
-    // ensure default if not present:
-    credentials.walletInfo!.derivationInfo ??= DerivationInfo(derivationType: DerivationType.nano);
+    // should never happen but just in case:
+    if (credentials.walletInfo!.derivationInfo == null) {
+      credentials.walletInfo!.derivationInfo = DerivationInfo(derivationType: DerivationType.nano);
+    } else if (credentials.walletInfo!.derivationInfo!.derivationType == null) {
+      credentials.walletInfo!.derivationInfo!.derivationType = DerivationType.nano;
+    }
 
     final wallet = NanoWallet(
       walletInfo: credentials.walletInfo!,
@@ -86,7 +93,8 @@ class NanoWalletService extends WalletService<NanoNewWalletCredentials,
   }
 
   @override
-  Future<NanoWallet> restoreFromKeys(NanoRestoreWalletFromKeysCredentials credentials, {bool? isTestnet}) async {
+  Future<NanoWallet> restoreFromKeys(NanoRestoreWalletFromKeysCredentials credentials,
+      {bool? isTestnet}) async {
     if (credentials.seedKey.contains(' ')) {
       throw Exception("Invalid key!");
     } else {
@@ -106,6 +114,13 @@ class NanoWalletService extends WalletService<NanoNewWalletCredentials,
       }
     }
 
+    // should never happen but just in case:
+    if (credentials.walletInfo!.derivationInfo == null) {
+      credentials.walletInfo!.derivationInfo = DerivationInfo(derivationType: DerivationType.nano);
+    } else if (credentials.walletInfo!.derivationInfo!.derivationType == null) {
+      credentials.walletInfo!.derivationInfo!.derivationType = DerivationType.nano;
+    }
+
     final wallet = await NanoWallet(
       password: credentials.password!,
       mnemonic: mnemonic ?? credentials.seedKey,
@@ -119,11 +134,13 @@ class NanoWalletService extends WalletService<NanoNewWalletCredentials,
 
   @override
   Future<NanoWallet> restoreFromHardwareWallet(NanoNewWalletCredentials credentials) {
-    throw UnimplementedError("Restoring a Nano wallet from a hardware wallet is not yet supported!");
+    throw UnimplementedError(
+        "Restoring a Nano wallet from a hardware wallet is not yet supported!");
   }
 
   @override
-  Future<NanoWallet> restoreFromSeed(NanoRestoreWalletFromSeedCredentials credentials, {bool? isTestnet}) async {
+  Future<NanoWallet> restoreFromSeed(NanoRestoreWalletFromSeedCredentials credentials,
+      {bool? isTestnet}) async {
     if (credentials.mnemonic.contains(' ')) {
       if (!bip39.validateMnemonic(credentials.mnemonic)) {
         throw nm.NanoMnemonicIsIncorrectException();

cw_wownero/pubspec.lock

@@ -463,8 +463,8 @@ packages:
     dependency: "direct main"
     description:
       path: "impls/monero.dart"
-      ref: bcb328a4956105dc182afd0ce2e48fe263f5f20b
-      resolved-ref: bcb328a4956105dc182afd0ce2e48fe263f5f20b
+      ref: 3cb38bee9385faf46b03fd73aab85f3ac4115bf7
+      resolved-ref: 3cb38bee9385faf46b03fd73aab85f3ac4115bf7
       url: "https://github.com/mrcyjanek/monero_c"
     source: git
     version: "0.0.0"

cw_wownero/pubspec.yaml

@@ -25,7 +25,7 @@ dependencies:
   monero:
     git:
       url: https://github.com/mrcyjanek/monero_c
-      ref: bcb328a4956105dc182afd0ce2e48fe263f5f20b # monero_c hash
+      ref: 3cb38bee9385faf46b03fd73aab85f3ac4115bf7 # monero_c hash
       path: impls/monero.dart
   mutex: ^3.1.0
 

lib/bitcoin/cw_bitcoin.dart

@@ -29,8 +29,9 @@ class CWBitcoin extends Bitcoin {
 
   @override
   WalletCredentials createBitcoinNewWalletCredentials(
-          {required String name, WalletInfo? walletInfo, String? password}) =>
-      BitcoinNewWalletCredentials(name: name, walletInfo: walletInfo, password: password);
+          {required String name, WalletInfo? walletInfo, String? password, String? passphrase}) =>
+      BitcoinNewWalletCredentials(
+          name: name, walletInfo: walletInfo, password: password, passphrase: passphrase);
 
   @override
   WalletCredentials createBitcoinHardwareWalletCredentials(
@@ -202,8 +203,8 @@ class CWBitcoin extends Bitcoin {
     await bitcoinWallet.updateAllUnspents();
   }
 
-  WalletService createBitcoinWalletService(
-      Box<WalletInfo> walletInfoSource, Box<UnspentCoinsInfo> unspentCoinSource, bool alwaysScan, bool isDirect) {
+  WalletService createBitcoinWalletService(Box<WalletInfo> walletInfoSource,
+      Box<UnspentCoinsInfo> unspentCoinSource, bool alwaysScan, bool isDirect) {
     return BitcoinWalletService(walletInfoSource, unspentCoinSource, alwaysScan, isDirect);
   }
 
@@ -315,7 +316,7 @@ class CWBitcoin extends Bitcoin {
     for (DerivationType dType in electrum_derivations.keys) {
       late Uint8List seedBytes;
       if (dType == DerivationType.electrum) {
-        seedBytes = await mnemonicToSeedBytes(mnemonic);
+        seedBytes = await mnemonicToSeedBytes(mnemonic, passphrase: passphrase ?? "");
       } else if (dType == DerivationType.bip39) {
         seedBytes = bip39.mnemonicToSeed(mnemonic, passphrase: passphrase ?? '');
       }
@@ -398,9 +399,10 @@ class CWBitcoin extends Bitcoin {
   }
 
   @override
-  Future<bool> canReplaceByFee(Object wallet, String transactionHash) async {
+  Future<bool> canReplaceByFee(Object wallet, Object transactionInfo) async {
     final bitcoinWallet = wallet as ElectrumWallet;
-    return bitcoinWallet.canReplaceByFee(transactionHash);
+    final tx = transactionInfo as ElectrumTransactionInfo;
+    return bitcoinWallet.canReplaceByFee(tx);
   }
 
   @override
@@ -516,7 +518,7 @@ class CWBitcoin extends Bitcoin {
   @override
   bool isTestnet(Object wallet) {
     final bitcoinWallet = wallet as ElectrumWallet;
-    return bitcoinWallet.isTestnet ?? false;
+    return bitcoinWallet.isTestnet;
   }
 
   @override

lib/bitcoin_cash/cw_bitcoin_cash.dart

@@ -15,14 +15,16 @@ class CWBitcoinCash extends BitcoinCash {
     required String name,
     WalletInfo? walletInfo,
     String? password,
+    String? passphrase,
   }) =>
-      BitcoinCashNewWalletCredentials(name: name, walletInfo: walletInfo, password: password);
+      BitcoinCashNewWalletCredentials(
+          name: name, walletInfo: walletInfo, password: password, passphrase: passphrase);
 
   @override
   WalletCredentials createBitcoinCashRestoreWalletFromSeedCredentials(
-          {required String name, required String mnemonic, required String password}) =>
+          {required String name, required String mnemonic, required String password, String? passphrase}) =>
       BitcoinCashRestoreWalletFromSeedCredentials(
-          name: name, mnemonic: mnemonic, password: password);
+          name: name, mnemonic: mnemonic, password: password, passphrase: passphrase);
 
   @override
   TransactionPriority deserializeBitcoinCashTransactionPriority(int raw) =>

lib/core/wallet_creation_service.dart

@@ -75,8 +75,10 @@ class WalletCreationService {
 
   bool get _hasSeedPhraseLengthOption {
     switch (type) {
-      case WalletType.ethereum:
+      case WalletType.bitcoin:
+      case WalletType.litecoin:
       case WalletType.bitcoinCash:
+      case WalletType.ethereum:
       case WalletType.polygon:
       case WalletType.solana:
       case WalletType.tron:
@@ -84,8 +86,6 @@ class WalletCreationService {
       case WalletType.monero:
       case WalletType.wownero:
       case WalletType.none:
-      case WalletType.bitcoin:
-      case WalletType.litecoin:
       case WalletType.haven:
       case WalletType.nano:
       case WalletType.banano:

lib/di.dart

@@ -146,7 +146,7 @@ import 'package:cake_wallet/view_model/cake_pay/cake_pay_purchase_view_model.dar
 import 'package:cake_wallet/view_model/nano_account_list/nano_account_edit_or_create_view_model.dart';
 import 'package:cake_wallet/view_model/nano_account_list/nano_account_list_view_model.dart';
 import 'package:cake_wallet/view_model/node_list/pow_node_list_view_model.dart';
-import 'package:cake_wallet/view_model/seed_type_view_model.dart';
+import 'package:cake_wallet/view_model/seed_settings_view_model.dart';
 import 'package:cake_wallet/view_model/set_up_2fa_viewmodel.dart';
 import 'package:cake_wallet/view_model/restore/restore_from_qr_vm.dart';
 import 'package:cake_wallet/view_model/settings/display_settings_view_model.dart';
@@ -179,6 +179,7 @@ import 'package:cake_wallet/store/dashboard/trades_store.dart';
 import 'package:cake_wallet/store/dashboard/transaction_filter_store.dart';
 import 'package:cake_wallet/store/node_list_store.dart';
 import 'package:cake_wallet/store/secret_store.dart';
+import 'package:cake_wallet/store/seed_settings_store.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/store/templates/exchange_template_store.dart';
 import 'package:cake_wallet/store/templates/send_template_store.dart';
@@ -331,6 +332,7 @@ Future<void> setup({
       YatStore(appStore: getIt.get<AppStore>(), secureStorage: getIt.get<SecureStorage>())..init());
   getIt.registerSingleton<AnonpayTransactionsStore>(
       AnonpayTransactionsStore(anonpayInvoiceInfoSource: _anonpayInvoiceInfoSource));
+  getIt.registerSingleton<SeedSettingsStore>(SeedSettingsStore());
 
   getIt.registerLazySingleton(() => LedgerViewModel());
 
@@ -361,6 +363,7 @@ Future<void> setup({
       getIt.get<WalletCreationService>(param1: type),
       _walletInfoSource,
       getIt.get<AdvancedPrivacySettingsViewModel>(param1: type),
+      getIt.get<SeedSettingsViewModel>(),
       type: type));
 
   getIt.registerFactoryParam<WalletUnlockPage, WalletUnlockArguments, bool>((args, closable) {
@@ -422,14 +425,21 @@ Future<void> setup({
       walletType: args.walletType ?? currentWalletType);
   });
 
-  getIt.registerFactoryParam<WalletRestorationFromQRVM, WalletType, void>((WalletType type, _) {
-    return WalletRestorationFromQRVM(getIt.get<AppStore>(),
-        getIt.get<WalletCreationService>(param1: type), _walletInfoSource, type);
-  });
+  getIt.registerFactoryParam<WalletRestorationFromQRVM, WalletType, void>((WalletType type, _) =>
+      WalletRestorationFromQRVM(
+          getIt.get<AppStore>(),
+          getIt.get<WalletCreationService>(param1: type),
+          _walletInfoSource,
+          type,
+          getIt.get<SeedSettingsViewModel>()));
 
   getIt.registerFactoryParam<WalletHardwareRestoreViewModel, WalletType, void>((type, _) =>
-      WalletHardwareRestoreViewModel(getIt.get<LedgerViewModel>(), getIt.get<AppStore>(),
-          getIt.get<WalletCreationService>(param1: type), _walletInfoSource,
+      WalletHardwareRestoreViewModel(
+          getIt.get<LedgerViewModel>(),
+          getIt.get<AppStore>(),
+          getIt.get<WalletCreationService>(param1: type),
+          _walletInfoSource,
+          getIt.get<SeedSettingsViewModel>(),
           type: type));
 
   getIt.registerFactory<WalletAddressListViewModel>(() => WalletAddressListViewModel(
@@ -833,7 +843,7 @@ Future<void> setup({
 
   getIt.registerFactory(() => WalletSeedViewModel(getIt.get<AppStore>().wallet!));
 
-  getIt.registerFactory<SeedTypeViewModel>(() => SeedTypeViewModel(getIt.get<AppStore>()));
+  getIt.registerFactory<SeedSettingsViewModel>(() => SeedSettingsViewModel(getIt.get<AppStore>(), getIt.get<SeedSettingsStore>()));
 
   getIt.registerFactoryParam<WalletSeedPage, bool, void>((bool isWalletCreated, _) =>
       WalletSeedPage(getIt.get<WalletSeedViewModel>(), isNewWalletCreated: isWalletCreated));
@@ -1018,12 +1028,12 @@ Future<void> setup({
   getIt.registerFactory(() => FaqPage(getIt.get<SettingsStore>()));
 
   getIt.registerFactoryParam<WalletRestoreViewModel, WalletType, void>((type, _) =>
-      WalletRestoreViewModel(
-          getIt.get<AppStore>(), getIt.get<WalletCreationService>(param1: type), _walletInfoSource,
+      WalletRestoreViewModel(getIt.get<AppStore>(), getIt.get<WalletCreationService>(param1: type),
+          _walletInfoSource, getIt.get<SeedSettingsViewModel>(),
           type: type));
 
   getIt.registerFactoryParam<WalletRestorePage, WalletType, void>((type, _) => WalletRestorePage(
-      getIt.get<WalletRestoreViewModel>(param1: type), getIt.get<SeedTypeViewModel>()));
+      getIt.get<WalletRestoreViewModel>(param1: type), getIt.get<SeedSettingsViewModel>()));
 
   getIt.registerFactoryParam<WalletRestoreChooseDerivationViewModel, List<DerivationInfo>, void>(
       (derivations, _) => WalletRestoreChooseDerivationViewModel(derivationInfos: derivations));

lib/entities/default_settings_migration.dart

@@ -40,6 +40,7 @@ const solanaDefaultNodeUri = 'rpc.ankr.com';
 const tronDefaultNodeUri = 'trx.nownodes.io';
 const newCakeWalletBitcoinUri = 'btc-electrum.cakewallet.com:50002';
 const wowneroDefaultNodeUri = 'node3.monerodevs.org:34568';
+const moneroWorldNodeUri = '.moneroworld.com';
 
 Future<void> defaultSettingsMigration(
     {required int version,
@@ -245,6 +246,9 @@ Future<void> defaultSettingsMigration(
           _fixNodesUseSSLFlag(nodes);
           await changeDefaultNanoNode(nodes, sharedPreferences);
           break;
+        case 40:
+          await removeMoneroWorld(sharedPreferences: sharedPreferences, nodes: nodes);
+          break;
         default:
           break;
       }
@@ -488,15 +492,7 @@ Node? getBitcoinCashDefaultElectrumServer({required Box<Node> nodes}) {
 
 Node getMoneroDefaultNode({required Box<Node> nodes}) {
   final timeZone = DateTime.now().timeZoneOffset.inHours;
-  var nodeUri = '';
-
-  if (timeZone >= 1) {
-    // Eurasia
-    nodeUri = 'xmr-node-eu.cakewallet.com:18081';
-  } else if (timeZone <= -4) {
-    // America
-    nodeUri = 'xmr-node-usa-east.cakewallet.com:18081';
-  }
+  var nodeUri = newCakeWalletMoneroUri;
 
   try {
     return nodes.values.firstWhere((Node node) => node.uriRaw == nodeUri);
@@ -1260,3 +1256,22 @@ Future<void> replaceTronDefaultNode({
   // If it's not, we switch user to the new default node: NowNodes
   await changeTronCurrentNodeToDefault(sharedPreferences: sharedPreferences, nodes: nodes);
 }
+
+Future<void> removeMoneroWorld(
+    {required SharedPreferences sharedPreferences, required Box<Node> nodes}) async {
+  const cakeWalletMoneroNodeUriPattern = '.moneroworld.com';
+  final currentMoneroNodeId = sharedPreferences.getInt(PreferencesKey.currentNodeIdKey);
+  final currentMoneroNode = nodes.values.firstWhere((node) => node.key == currentMoneroNodeId);
+  final needToReplaceCurrentMoneroNode = currentMoneroNode.uri.toString().contains(cakeWalletMoneroNodeUriPattern);
+
+  nodes.values.forEach((node) async {
+    if (node.type == WalletType.monero &&
+        node.uri.toString().contains(cakeWalletMoneroNodeUriPattern)) {
+      await node.delete();
+    }
+  });
+
+  if (needToReplaceCurrentMoneroNode) {
+    await changeMoneroCurrentNodeToDefault(sharedPreferences: sharedPreferences, nodes: nodes);
+  }
+}

lib/entities/language_service.dart

@@ -29,7 +29,9 @@ class LanguageService {
     'id': 'Bahasa Indonesia (Indonesian)',
     'yo': 'Yorùbá (Yoruba)',
     'ha': 'Hausa Najeriya (Nigeria)',
-    'tl': 'Filipino (Tagalog)'
+    'tl': 'Filipino (Tagalog)',
+    'hy': 'Հայերեն (Armenian)',
+    'vi': 'Tiếng Việt (Vietnamese)',
   };
 
   static const Map<String, String> localeCountryCode = {
@@ -58,7 +60,9 @@ class LanguageService {
     'id': 'idn',
     'yo': 'nga',
     'ha': 'hau',
-    'tl': 'phl'
+    'tl': 'phl',
+    'hy': 'arm',
+    'vi': 'vnm',
   };
 
   static final list = <String, String>{};

lib/entities/preferences_key.dart

@@ -61,6 +61,7 @@ class PreferencesKey {
   static const useEtherscan = 'use_etherscan';
   static const usePolygonScan = 'use_polygonscan';
   static const useTronGrid = 'use_trongrid';
+  static const useMempoolFeeAPI = 'use_mempool_fee_api';
   static const defaultNanoRep = 'default_nano_representative';
   static const defaultBananoRep = 'default_banano_representative';
   static const lookupsTwitter = 'looks_up_twitter';
@@ -77,6 +78,7 @@ class PreferencesKey {
   static const exchangeProvidersSelection = 'exchange-providers-selection';
   static const autoGenerateSubaddressStatusKey = 'auto_generate_subaddress_status';
   static const moneroSeedType = 'monero_seed_type';
+  static const bitcoinSeedType = 'bitcoin_seed_type';
   static const clearnetDonationLink = 'clearnet_donation_link';
   static const onionDonationLink = 'onion_donation_link';
   static const donationLinkWalletName = 'donation_link_wallet_name';