Fix Private key for Ethereum wallets

cw_ethereum/lib/ethereum_balance.dart

@@ -4,20 +4,19 @@ import 'package:cw_core/balance.dart';
 import 'package:web3dart/web3dart.dart';
 
 class EthereumBalance extends Balance {
-  EthereumBalance({required int available, required int additional}) : super(available, additional);
+  EthereumBalance(this.balance)
+      : super(balance.getValueInUnit(EtherUnit.wei).toInt(),
+            balance.getValueInUnit(EtherUnit.wei).toInt());
+
+  final EtherAmount balance;
 
   @override
-  String get formattedAdditionalBalance {
-    return EtherAmount.fromUnitAndValue(EtherUnit.ether, additional.toString())
-        .getInEther
-        .toString();
-  }
+  String get formattedAdditionalBalance => balance.getValueInUnit(EtherUnit.ether).toString();
 
   @override
-  String get formattedAvailableBalance =>
-      EtherAmount.fromUnitAndValue(EtherUnit.ether, available.toString()).getInEther.toString();
+  String get formattedAvailableBalance => balance.getValueInUnit(EtherUnit.ether).toString();
 
-  String toJSON() => json.encode({'available': available, 'additional': additional});
+  String toJSON() => json.encode({'balanceInWei': balance.getInWei.toString()});
 
   static EthereumBalance? fromJSON(String? jsonSource) {
     if (jsonSource == null) {
@@ -26,9 +25,10 @@ class EthereumBalance extends Balance {
 
     final decoded = json.decode(jsonSource) as Map;
 
-    return EthereumBalance(
-      available: decoded['available'] as int? ?? 0,
-      additional: decoded['additional'] as int? ?? 0,
-    );
+    try {
+      return EthereumBalance(EtherAmount.inWei(BigInt.parse(decoded['balanceInWei'])));
+    } catch (e) {
+      return EthereumBalance(EtherAmount.zero());
+    }
   }
 }

cw_ethereum/lib/ethereum_client.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:cw_core/node.dart';
 import 'package:cw_ethereum/ethereum_transaction_priority.dart';
 import 'package:http/http.dart';
@@ -17,10 +19,8 @@ class EthereumClient {
     }
   }
 
-  Future<EtherAmount> getBalance(String privateKey) async {
-    final private = EthPrivateKey.fromHex(privateKey);
-
-    return _client!.getBalance(private.address);
+  Future<EtherAmount> getBalance(EthereumAddress address) async {
+    return await _client!.getBalance(address);
   }
 
   Future<int> getGasUnitPrice() async {
@@ -39,35 +39,33 @@ class EthereumClient {
     return result.map((e) => e.toInt()).toList();
   }
 
-  Future<String> signTransaction(String privateKey, String toAddress, String amount) async {
-    final credentials = EthPrivateKey.fromHex(privateKey);
-
+  Future<String> signTransaction(
+    EthPrivateKey privateKey,
+    String toAddress,
+    String amount,
+    int fee,
+  ) async {
     final transaction = Transaction(
-      from: credentials.address,
+      from: privateKey.address,
       to: EthereumAddress.fromHex(toAddress),
-      value: EtherAmount.zero(),
+      value: EtherAmount.fromUnitAndValue(EtherUnit.ether, amount),
+      // maxPriorityFeePerGas: EtherAmount.inWei(BigInt.from(fee)),
     );
-    print("@@@@@@@@@@@@@@@@@");
-    print(transaction);
 
-    String tr = bytesToHex(await _client!.signTransaction(credentials, transaction));
-    print("@@@@@@@@@@@@@@@@@");
-    print(tr);
+    final Uint8List signedTransaction = await _client!.signTransaction(privateKey, transaction);
 
-    return tr;
+    return bytesToHex(signedTransaction);
   }
 
-  Future<String> sendTransaction(String privateKey, String toAddress, String amount) async {
-    final credentials = EthPrivateKey.fromHex(privateKey);
-
+  Future<String> sendTransaction(EthPrivateKey privateKey, String toAddress, String amount) async {
     final transaction = Transaction(
-      from: credentials.address,
+      from: privateKey.address,
       to: EthereumAddress.fromHex(toAddress),
       value: EtherAmount.fromUnitAndValue(EtherUnit.ether, amount),
     );
 
     return await _client!.sendTransaction(
-      credentials,
+      privateKey,
       transaction,
     );
   }

cw_ethereum/lib/ethereum_wallet.dart

@@ -22,9 +22,7 @@ import 'package:cw_ethereum/file.dart';
 import 'package:cw_ethereum/pending_ethereum_transaction.dart';
 import 'package:mobx/mobx.dart';
 import 'package:web3dart/web3dart.dart';
-import 'package:ed25519_hd_key/ed25519_hd_key.dart';
 import 'package:bip39/bip39.dart' as bip39;
-import 'package:hex/hex.dart';
 
 part 'ethereum_wallet.g.dart';
 
@@ -45,7 +43,7 @@ abstract class EthereumWalletBase
         _client = EthereumClient(),
         walletAddresses = EthereumWalletAddresses(walletInfo),
         balance = ObservableMap<CryptoCurrency, EthereumBalance>.of(
-            {CryptoCurrency.eth: initialBalance ?? EthereumBalance(available: 0, additional: 0)}),
+            {CryptoCurrency.eth: initialBalance ?? EthereumBalance(EtherAmount.zero())}),
         super(walletInfo) {
     this.walletInfo = walletInfo;
   }
@@ -53,7 +51,7 @@ abstract class EthereumWalletBase
   final String _mnemonic;
   final String _password;
 
-  late final String _privateKey;
+  late final EthPrivateKey _privateKey;
 
   late EthereumClient _client;
 
@@ -75,7 +73,7 @@ abstract class EthereumWalletBase
     await walletAddresses.init();
     _privateKey = await getPrivateKey(_mnemonic, _password);
     transactionHistory = EthereumTransactionHistory();
-    walletAddresses.address = EthPrivateKey.fromHex(_privateKey).address.toString();
+    walletAddresses.address = _privateKey.address.toString();
   }
 
   @override
@@ -121,11 +119,10 @@ abstract class EthereumWalletBase
 
   @override
   Future<PendingTransaction> createTransaction(Object credentials) async {
-    print("!!!!!!!!!!!!!!!!!!!");
     final _credentials = credentials as EthereumTransactionCredentials;
     final outputs = _credentials.outputs;
     final hasMultiDestination = outputs.length > 1;
-    final balance = await _client.getBalance(_privateKey);
+    final balance = await _client.getBalance(_privateKey.address);
     int totalAmount = 0;
 
     if (hasMultiDestination) {
@@ -150,7 +147,12 @@ abstract class EthereumWalletBase
       }
     }
 
-    await _client.signTransaction(_privateKey, _credentials.outputs.first.address, totalAmount.toString());
+    await _client.signTransaction(
+      _privateKey,
+      _credentials.outputs.first.address,
+      totalAmount.toString(),
+      _priorityFees[_credentials.priority!.raw],
+    );
 
     return PendingEthereumTransaction(
       client: _client,
@@ -235,8 +237,8 @@ abstract class EthereumWalletBase
     final jsonSource = await read(path: path, password: password);
     final data = json.decode(jsonSource) as Map;
     final mnemonic = data['mnemonic'] as String;
-    final balance = EthereumBalance.fromJSON(data['balance'] as String) ??
-        EthereumBalance(available: 0, additional: 0);
+    final balance =
+        EthereumBalance.fromJSON(data['balance'] as String) ?? EthereumBalance(EtherAmount.zero());
 
     return EthereumWallet(
       walletInfo: walletInfo,
@@ -252,21 +254,12 @@ abstract class EthereumWalletBase
   }
 
   Future<EthereumBalance> _fetchBalances() async {
-    final balance = await _client.getBalance(_privateKey);
-
-    return EthereumBalance(
-      available: balance.getInEther.toInt(),
-      additional: balance.getInEther.toInt(),
-    );
+    final balance = await _client.getBalance(_privateKey.address);
+    return EthereumBalance(balance);
   }
 
-  Future<String> getPrivateKey(String mnemonic, String password) async {
+  Future<EthPrivateKey> getPrivateKey(String mnemonic, String password) async {
     final seed = bip39.mnemonicToSeedHex(mnemonic);
-    final master = await ED25519_HD_KEY.getMasterKeyFromSeed(
-      HEX.decode(seed),
-      masterSecret: password,
-    );
-    final privateKey = HEX.encode(master.key);
-    return privateKey;
+    return EthPrivateKey.fromHex(seed);
   }
 }

cw_ethereum/lib/pending_ethereum_transaction.dart

@@ -3,11 +3,12 @@ import 'package:cw_core/crypto_currency.dart';
 import 'package:cw_core/pending_transaction.dart';
 import 'package:cw_ethereum/ethereum_client.dart';
 import 'package:cw_ethereum/ethereum_transaction_credentials.dart';
+import 'package:web3dart/web3dart.dart';
 
 class PendingEthereumTransaction with PendingTransaction {
   final EthereumClient client;
   final EthereumTransactionCredentials credentials;
-  final String privateKey;
+  final EthPrivateKey privateKey;
   final int amount;
 
   PendingEthereumTransaction({

lib/view_model/dashboard/balance_view_model.dart

@@ -104,6 +104,7 @@ abstract class BalanceViewModelBase with Store {
     switch(wallet.type) {
       case WalletType.monero:
       case WalletType.haven:
+      case WalletType.ethereum:
         return S.current.xmr_available_balance;
       default:
         return S.current.confirmed;
@@ -115,6 +116,7 @@ abstract class BalanceViewModelBase with Store {
     switch(wallet.type) {
       case WalletType.monero:
       case WalletType.haven:
+      case WalletType.ethereum:
         return S.current.xmr_full_balance;
       default:
         return S.current.unconfirmed;