CW-766 fix coin freezing (#1751)

* fix coin freezing

* fix frozen balance

* update monero_c hash

* update monero_c hash (after merge)

* fix test E
make it ready

* revert local change

* throw error on wow as well

* experiment with view model code

* move view model into di.dart

cw_monero/lib/api/coins_info.dart

@@ -12,6 +12,18 @@ int countOfCoins() => monero.Coins_count(coins!);
 
 monero.CoinsInfo getCoin(int index) => monero.Coins_coin(coins!, index);
 
+int? getCoinByKeyImage(String keyImage) {
+  final count = countOfCoins();
+  for (int i = 0; i < count; i++) {
+    final coin = getCoin(i);
+    final coinAddress = monero.CoinsInfo_keyImage(coin);
+    if (keyImage == coinAddress) {
+      return i;
+    }
+  }
+  return null;
+}
+
 void freezeCoin(int index) => monero.Coins_setFrozen(coins!, index: index);
 
 void thawCoin(int index) => monero.Coins_thaw(coins!, index: index);

cw_monero/lib/api/transaction_history.dart

@@ -6,6 +6,7 @@ import 'package:cw_monero/api/exceptions/creation_transaction_exception.dart';
 import 'package:cw_monero/api/monero_output.dart';
 import 'package:cw_monero/api/structs/pending_transaction.dart';
 import 'package:cw_monero/api/wallet.dart';
+import 'package:cw_monero/exceptions/monero_transaction_creation_exception.dart';
 import 'package:ffi/ffi.dart';
 import 'package:monero/monero.dart' as monero;
 import 'package:monero/src/generated_bindings_monero.g.dart' as monero_gen;
@@ -101,7 +102,11 @@ Future<PendingTransactionDescription> createTransactionSync(
   });
 
   final address_ = address.toNativeUtf8(); 
-  final paymentId_ = paymentId.toNativeUtf8(); 
+  final paymentId_ = paymentId.toNativeUtf8();
+  if (preferredInputs.isEmpty) {
+    throw MoneroTransactionCreationException("No inputs provided, transaction cannot be constructed");
+  }
+
   final preferredInputs_ = preferredInputs.join(monero.defaultSeparatorStr).toNativeUtf8();
 
   final addraddr = address_.address;

cw_monero/lib/api/wallet.dart

@@ -4,6 +4,7 @@ import 'dart:isolate';
 
 import 'package:cw_monero/api/account_list.dart';
 import 'package:cw_monero/api/exceptions/setup_wallet_exception.dart';
+import 'package:flutter/foundation.dart';
 import 'package:monero/monero.dart' as monero;
 import 'package:mutex/mutex.dart';
 
@@ -129,6 +130,15 @@ Future<bool> setupNodeSync(
     throw SetupWalletException(message: error);
   }
 
+  if (kDebugMode) {
+    monero.Wallet_init3(
+      wptr!, argv0: '',
+      defaultLogBaseName: 'moneroc',
+      console: true,
+      logPath: '',
+    );
+  }
+
   return status == 0;
 }
 

cw_monero/lib/monero_unspent.dart

@@ -1,10 +1,32 @@
 import 'package:cw_core/unspent_transaction_output.dart';
+import 'package:cw_monero/api/coins_info.dart';
+import 'package:monero/monero.dart' as monero;
 
 class MoneroUnspent extends Unspent {
   MoneroUnspent(
       String address, String hash, String keyImage, int value, bool isFrozen, this.isUnlocked)
       : super(address, hash, value, 0, keyImage) {
-    this.isFrozen = isFrozen;
+  }
+
+  @override
+  set isFrozen(bool freeze) {
+    print("set isFrozen: $freeze ($keyImage): $freeze");
+    final coinId = getCoinByKeyImage(keyImage!);
+    if (coinId == null) throw Exception("Unable to find a coin for address $address");
+    if (freeze) {
+      freezeCoin(coinId);
+    } else {
+      thawCoin(coinId);
+    }
+  }
+
+  @override
+  bool get isFrozen {
+    print("get isFrozen");
+    final coinId = getCoinByKeyImage(keyImage!);
+    if (coinId == null) throw Exception("Unable to find a coin for address $address");
+    final coin = getCoin(coinId);
+    return monero.CoinsInfo_frozen(coin);
   }
 
   final bool isUnlocked;

cw_monero/lib/monero_wallet.dart

@@ -309,9 +309,8 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
             'You do not have enough XMR to send this amount.');
       }
 
-      if (!spendAllCoins && (allInputsAmount < totalAmount + estimatedFee)) {
+      if (inputs.isEmpty) MoneroTransactionCreationException(
-        throw MoneroTransactionNoInputsException(inputs.length);
+        'No inputs selected');
-      }
 
       final moneroOutputs = outputs.map((output) {
         final outputAddress =
@@ -337,23 +336,18 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
       final formattedAmount =
           output.sendAll ? null : output.formattedCryptoAmount;
 
-      if ((formattedAmount != null && unlockedBalance < formattedAmount) ||
+      // if ((formattedAmount != null && unlockedBalance < formattedAmount) ||
-          (formattedAmount == null && unlockedBalance <= 0)) {
+      //     (formattedAmount == null && unlockedBalance <= 0)) {
-        final formattedBalance = moneroAmountToString(amount: unlockedBalance);
+      //   final formattedBalance = moneroAmountToString(amount: unlockedBalance);
-
+      //
-        throw MoneroTransactionCreationException(
+      //   throw MoneroTransactionCreationException(
-            'You do not have enough unlocked balance. Unlocked: $formattedBalance. Transaction amount: ${output.cryptoAmount}.');
+      //       'You do not have enough unlocked balance. Unlocked: $formattedBalance. Transaction amount: ${output.cryptoAmount}.');
-      }
+      // }
 
       final estimatedFee =
           calculateEstimatedFee(_credentials.priority, formattedAmount);
-      if (!spendAllCoins &&
+      if (inputs.isEmpty) MoneroTransactionCreationException(
-          ((formattedAmount != null &&
+        'No inputs selected');
-                  allInputsAmount < (formattedAmount + estimatedFee)) ||
-              formattedAmount == null)) {
-        throw MoneroTransactionNoInputsException(inputs.length);
-      }
-
       pendingTransactionDescription =
           await transaction_history.createTransaction(
               address: address!,
@@ -363,6 +357,8 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
               preferredInputs: inputs);
     }
 
+    // final status = monero.PendingTransaction_status(pendingTransactionDescription);
+
     return PendingMoneroTransaction(pendingTransactionDescription);
   }
 
@@ -515,7 +511,7 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
       for (var i = 0; i < coinCount; i++) {
         final coin = getCoin(i);
         final coinSpent = monero.CoinsInfo_spent(coin);
-        if (coinSpent == false) {
+        if (coinSpent == false && monero.CoinsInfo_subaddrAccount(coin) == walletAddresses.account!.id) {
           final unspent = MoneroUnspent(
             monero.CoinsInfo_address(coin),
             monero.CoinsInfo_hash(coin),
@@ -729,9 +725,8 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
 
   void _askForUpdateBalance() {
     final unlockedBalance = _getUnlockedBalance();
-    final fullBalance = _getFullBalance();
+    final fullBalance = _getUnlockedBalance() + _getFrozenBalance();
-    final frozenBalance = _getFrozenBalance();
+    final frozenBalance = 0; // this is calculated on the monero side now
-
     if (balance[currency]!.fullBalance != fullBalance ||
         balance[currency]!.unlockedBalance != unlockedBalance ||
         balance[currency]!.frozenBalance != frozenBalance) {
@@ -757,9 +752,8 @@ abstract class MoneroWalletBase extends WalletBase<MoneroBalance,
     for (var coin in unspentCoinsInfo.values.where((element) =>
         element.walletId == id &&
         element.accountIndex == walletAddresses.account!.id)) {
-      if (coin.isFrozen) frozenBalance += coin.value;
+      if (coin.isFrozen && !coin.isSending) frozenBalance += coin.value;
     }
-
     return frozenBalance;
   }
 

cw_wownero/lib/api/transaction_history.dart

@@ -6,13 +6,16 @@ import 'package:cw_wownero/api/exceptions/creation_transaction_exception.dart';
 import 'package:cw_wownero/api/wallet.dart';
 import 'package:cw_wownero/api/wownero_output.dart';
 import 'package:cw_wownero/api/structs/pending_transaction.dart';
+import 'package:cw_wownero/exceptions/wownero_transaction_creation_exception.dart';
 import 'package:ffi/ffi.dart';
 import 'package:monero/wownero.dart' as wownero;
 import 'package:monero/src/generated_bindings_wownero.g.dart' as wownero_gen;
 
 
 String getTxKey(String txId) {
-  return wownero.Wallet_getTxKey(wptr!, txid: txId);
+  final ret = wownero.Wallet_getTxKey(wptr!, txid: txId);
+  wownero.Wallet_status(wptr!);
+  return ret;
 }
 
 wownero.TransactionHistory? txhistory;
@@ -86,7 +89,10 @@ Future<PendingTransactionDescription> createTransactionSync(
   final amt = amount == null ? 0 : wownero.Wallet_amountFromString(amount);
   
   final address_ = address.toNativeUtf8(); 
-  final paymentId_ = paymentId.toNativeUtf8(); 
+  final paymentId_ = paymentId.toNativeUtf8();
+  if (preferredInputs.isEmpty) {
+    throw WowneroTransactionCreationException("No inputs provided, transaction cannot be constructed");
+  }
   final preferredInputs_ = preferredInputs.join(wownero.defaultSeparatorStr).toNativeUtf8();
 
   final waddr = wptr!.address;

lib/di.dart

@@ -746,6 +746,7 @@ Future<void> setup({
       _transactionDescriptionBox,
       getIt.get<AppStore>().wallet!.isHardwareWallet ? getIt.get<LedgerViewModel>() : null,
       coinTypeToSpendFrom: coinTypeToSpendFrom ?? UnspentCoinType.any,
+      getIt.get<UnspentCoinsListViewModel>(param1: coinTypeToSpendFrom),
     ),
   );
 

lib/view_model/send/send_view_model.dart

@@ -19,6 +19,7 @@ import 'package:cake_wallet/tron/tron.dart';
 import 'package:cake_wallet/view_model/contact_list/contact_list_view_model.dart';
 import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart';
 import 'package:cake_wallet/view_model/hardware_wallet/ledger_view_model.dart';
+import 'package:cake_wallet/view_model/unspent_coins/unspent_coins_list_view_model.dart';
 import 'package:cake_wallet/wownero/wownero.dart';
 import 'package:cw_core/exceptions.dart';
 import 'package:cw_core/transaction_info.dart';
@@ -64,6 +65,8 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
         wallet.type == WalletType.tron;
   }
 
+  UnspentCoinsListViewModel unspentCoinsListViewModel;
+
   SendViewModelBase(
     AppStore appStore,
     this.sendTemplateViewModel,
@@ -71,7 +74,8 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
     this.balanceViewModel,
     this.contactListViewModel,
     this.transactionDescriptionBox,
-    this.ledgerViewModel, {
+    this.ledgerViewModel,
+    this.unspentCoinsListViewModel, {
     this.coinTypeToSpendFrom = UnspentCoinType.any,
   })  : state = InitialExecutionState(),
         currencies = appStore.wallet!.balance.keys.toList(),
@@ -530,6 +534,16 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
       throw Exception('Priority is null for wallet type: ${wallet.type}');
     }
 
+    if (hasCoinControl) {
+      bool isCoinSelected = false;
+      for (var coin in unspentCoinsListViewModel.items) {
+        isCoinSelected = isCoinSelected || (coin.isSending && !coin.isFrozen);
+      }
+      if (!isCoinSelected) {
+        throw Exception("No coin selected in coin control, you need to select a coin in order to spend");
+      }
+    }
+
     switch (wallet.type) {
       case WalletType.bitcoin:
       case WalletType.litecoin: