dirty hack for showing firo transactions right away until we can add functionality to sparkmobile

lib/wallets/models/tx_data.dart

@@ -1,4 +1,5 @@
 import 'package:cw_wownero/pending_wownero_transaction.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/transaction_v2.dart';
 import 'package:stackwallet/models/isar/models/isar_models.dart';
 import 'package:stackwallet/models/paynym/paynym_account_lite.dart';
 import 'package:stackwallet/utilities/amount/amount.dart';
@@ -64,6 +65,8 @@ class TxData {
       })>? sparkRecipients;
   final List<TxData>? sparkMints;
 
+  final TransactionV2? tempTx;
+
   TxData({
     this.feeRateType,
     this.feeRateAmount,
@@ -96,6 +99,7 @@ class TxData {
     this.tezosOperationsList,
     this.sparkRecipients,
     this.sparkMints,
+    this.tempTx,
   });
 
   Amount? get amount => recipients != null && recipients!.isNotEmpty
@@ -153,6 +157,7 @@ class TxData {
             })>?
         sparkRecipients,
     List<TxData>? sparkMints,
+    TransactionV2? tempTx,
   }) {
     return TxData(
       feeRateType: feeRateType ?? this.feeRateType,
@@ -187,6 +192,7 @@ class TxData {
       tezosOperationsList: tezosOperationsList ?? this.tezosOperationsList,
       sparkRecipients: sparkRecipients ?? this.sparkRecipients,
       sparkMints: sparkMints ?? this.sparkMints,
+      tempTx: tempTx ?? this.tempTx,
     );
   }
 
@@ -223,5 +229,6 @@ class TxData {
       'tezosOperationsList: $tezosOperationsList, '
       'sparkRecipients: $sparkRecipients, '
       'sparkMints: $sparkMints, '
+      'tempTx: $tempTx, '
       '}';
 }

lib/wallets/wallet/impl/firo_wallet.dart

@@ -16,6 +16,7 @@ import 'package:stackwallet/utilities/util.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/firo.dart';
 import 'package:stackwallet/wallets/crypto_currency/crypto_currency.dart';
 import 'package:stackwallet/wallets/isar/models/spark_coin.dart';
+import 'package:stackwallet/wallets/models/tx_data.dart';
 import 'package:stackwallet/wallets/wallet/intermediate/bip39_hd_wallet.dart';
 import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart';
 import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/lelantus_interface.dart';
@@ -41,8 +42,23 @@ class FiroWallet extends Bip39HDWallet
   FilterOperation? get receivingAddressFilterOperation =>
       FilterGroup.and(standardReceivingAddressFilters);
 
+  final Set<String> _unconfirmedTxids = {};
+
   // ===========================================================================
 
+  @override
+  Future<TxData> updateSentCachedTxData({required TxData txData}) async {
+    if (txData.tempTx != null) {
+      await mainDB.updateOrPutTransactionV2s([txData.tempTx!]);
+      _unconfirmedTxids.add(txData.tempTx!.txid);
+      Logging.instance.log(
+        "Added firo unconfirmed: ${txData.tempTx!.txid}",
+        level: LogLevel.Info,
+      );
+    }
+    return txData;
+  }
+
   @override
   Future<void> updateTransactions() async {
     List<Address> allAddressesOld = await fetchAddressesForElectrumXScan();
@@ -487,7 +503,16 @@ class FiroWallet extends Bip39HDWallet
         otherData: otherData,
       );
 
+      if (_unconfirmedTxids.contains(tx.txid)) {
+        if (tx.isConfirmed(await chainHeight, cryptoCurrency.minConfirms)) {
           txns.add(tx);
+          _unconfirmedTxids.removeWhere((e) => e == tx.txid);
+        } else {
+          // don't update in db until confirmed
+        }
+      } else {
+        txns.add(tx);
+      }
     }
 
     await mainDB.updateOrPutTransactionV2s(txns);

lib/wallets/wallet/wallet.dart

@@ -368,7 +368,7 @@ abstract class Wallet<T extends CryptoCurrency> {
   Future<void> updateTransactions();
   Future<void> updateBalance();
 
-  // returns true if new utxos were added to local db
+  /// returns true if new utxos were added to local db
   Future<bool> updateUTXOs();
 
   /// updates the wallet info's cachedChainHeight
@@ -381,6 +381,14 @@ abstract class Wallet<T extends CryptoCurrency> {
   Future<bool> pingCheck();
 
   //===========================================
+  /// add transaction to local db temporarily. Used for quickly updating ui
+  /// before refresh can fetch data from server
+  Future<TxData> updateSentCachedTxData({required TxData txData}) async {
+    if (txData.tempTx != null) {
+      await mainDB.updateOrPutTransactionV2s([txData.tempTx!]);
+    }
+    return txData;
+  }
 
   NodeModel getCurrentNode() {
     final node = nodeService.getPrimaryNodeFor(coin: cryptoCurrency.coin) ??

lib/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart

@@ -8,6 +8,9 @@ import 'package:decimal/decimal.dart';
 import 'package:isar/isar.dart';
 import 'package:stackwallet/electrumx_rpc/cached_electrumx_client.dart';
 import 'package:stackwallet/electrumx_rpc/electrumx_client.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/input_v2.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/output_v2.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/transaction_v2.dart';
 import 'package:stackwallet/models/isar/models/isar_models.dart';
 import 'package:stackwallet/models/paymint/fee_object_model.dart';
 import 'package:stackwallet/models/signing_data.dart';
@@ -172,7 +175,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
         );
       }
 
-      final int vSizeForOneOutput = buildTransaction(
+      final int vSizeForOneOutput = (await buildTransaction(
         utxoSigningData: utxoSigningData,
         txData: txData.copyWith(
           recipients: _helperRecipientsConvert(
@@ -180,7 +183,8 @@ mixin ElectrumXInterface on Bip39HDWallet {
             [satoshisBeingUsed - 1],
           ),
         ),
-      ).vSize!;
+      ))
+          .vSize!;
       int feeForOneOutput = satsPerVByte != null
           ? (satsPerVByte * vSizeForOneOutput)
           : estimateTxFee(
@@ -200,7 +204,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
       }
 
       final int amount = satoshiAmountToSend - feeForOneOutput;
-      final data = buildTransaction(
+      final data = await buildTransaction(
         txData: txData.copyWith(
           recipients: _helperRecipientsConvert(
             [recipientAddress],
@@ -221,7 +225,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
 
     final int vSizeForOneOutput;
     try {
-      vSizeForOneOutput = buildTransaction(
+      vSizeForOneOutput = (await buildTransaction(
         utxoSigningData: utxoSigningData,
         txData: txData.copyWith(
           recipients: _helperRecipientsConvert(
@@ -229,7 +233,8 @@ mixin ElectrumXInterface on Bip39HDWallet {
             [satoshisBeingUsed - 1],
           ),
         ),
-      ).vSize!;
+      ))
+          .vSize!;
     } catch (e) {
       Logging.instance.log("vSizeForOneOutput: $e", level: LogLevel.Error);
       rethrow;
@@ -237,7 +242,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
 
     final int vSizeForTwoOutPuts;
     try {
-      vSizeForTwoOutPuts = buildTransaction(
+      vSizeForTwoOutPuts = (await buildTransaction(
         utxoSigningData: utxoSigningData,
         txData: txData.copyWith(
           recipients: _helperRecipientsConvert(
@@ -248,7 +253,8 @@ mixin ElectrumXInterface on Bip39HDWallet {
             ],
           ),
         ),
-      ).vSize!;
+      ))
+          .vSize!;
     } catch (e) {
       Logging.instance.log("vSizeForTwoOutPuts: $e", level: LogLevel.Error);
       rethrow;
@@ -312,7 +318,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
           Logging.instance
               .log('Estimated fee: $feeForTwoOutputs', level: LogLevel.Info);
 
-          var txn = buildTransaction(
+          var txn = await buildTransaction(
             utxoSigningData: utxoSigningData,
             txData: txData.copyWith(
               recipients: _helperRecipientsConvert(
@@ -343,7 +349,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
                 level: LogLevel.Info);
             Logging.instance.log('Adjusted Estimated fee: $feeForTwoOutputs',
                 level: LogLevel.Info);
-            txn = buildTransaction(
+            txn = await buildTransaction(
               utxoSigningData: utxoSigningData,
               txData: txData.copyWith(
                 recipients: _helperRecipientsConvert(
@@ -374,7 +380,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
               level: LogLevel.Info);
           Logging.instance
               .log('Estimated fee: $feeForOneOutput', level: LogLevel.Info);
-          final txn = buildTransaction(
+          final txn = await buildTransaction(
             utxoSigningData: utxoSigningData,
             txData: txData.copyWith(
               recipients: _helperRecipientsConvert(
@@ -406,7 +412,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
             level: LogLevel.Info);
         Logging.instance
             .log('Estimated fee: $feeForOneOutput', level: LogLevel.Info);
-        final txn = buildTransaction(
+        final txn = await buildTransaction(
           utxoSigningData: utxoSigningData,
           txData: txData.copyWith(
             recipients: _helperRecipientsConvert(
@@ -438,7 +444,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
           level: LogLevel.Info);
       Logging.instance
           .log('Estimated fee: $feeForOneOutput', level: LogLevel.Info);
-      final txn = buildTransaction(
+      final txn = await buildTransaction(
         utxoSigningData: utxoSigningData,
         txData: txData.copyWith(
           recipients: _helperRecipientsConvert(
@@ -615,10 +621,10 @@ mixin ElectrumXInterface on Bip39HDWallet {
   }
 
   /// Builds and signs a transaction
-  TxData buildTransaction({
+  Future<TxData> buildTransaction({
     required TxData txData,
     required List<SigningData> utxoSigningData,
-  }) {
+  }) async {
     Logging.instance
         .log("Starting buildTransaction ----------", level: LogLevel.Info);
 
@@ -637,7 +643,12 @@ mixin ElectrumXInterface on Bip39HDWallet {
         wif: cryptoCurrency.networkParams.wifPrefix,
       ),
     );
-    txb.setVersion(1); // TODO possibly override this for certain coins?
+    const version = 1; // TODO possibly override this for certain coins?
+    txb.setVersion(version);
+
+    // temp tx data to show in gui while waiting for real data from server
+    final List<InputV2> tempInputs = [];
+    final List<OutputV2> tempOutputs = [];
 
     // Add transaction inputs
     for (var i = 0; i < utxoSigningData.length; i++) {
@@ -649,6 +660,25 @@ mixin ElectrumXInterface on Bip39HDWallet {
         utxoSigningData[i].output!,
         cryptoCurrency.networkParams.bech32Hrp,
       );
+
+      tempInputs.add(
+        InputV2.isarCantDoRequiredInDefaultConstructor(
+          scriptSigHex: txb.inputs.first.script?.toHex,
+          sequence: 0xffffffff - 1,
+          outpoint: OutpointV2.isarCantDoRequiredInDefaultConstructor(
+            txid: utxoSigningData[i].utxo.txid,
+            vout: utxoSigningData[i].utxo.vout,
+          ),
+          addresses: utxoSigningData[i].utxo.address == null
+              ? []
+              : [utxoSigningData[i].utxo.address!],
+          valueStringSats: utxoSigningData[i].utxo.value.toString(),
+          witness: null,
+          innerRedeemScriptAsm: null,
+          coinbase: null,
+          walletOwns: true,
+        ),
+      );
     }
 
     // Add transaction output
@@ -658,6 +688,24 @@ mixin ElectrumXInterface on Bip39HDWallet {
         txData.recipients![i].amount.raw.toInt(),
         cryptoCurrency.networkParams.bech32Hrp,
       );
+
+      tempOutputs.add(
+        OutputV2.isarCantDoRequiredInDefaultConstructor(
+          scriptPubKeyHex: "000000",
+          valueStringSats: txData.recipients![i].amount.raw.toString(),
+          addresses: [
+            txData.recipients![i].address.toString(),
+          ],
+          walletOwns: (await mainDB.isar.addresses
+                  .where()
+                  .walletIdEqualTo(walletId)
+                  .filter()
+                  .valueEqualTo(txData.recipients![i].address)
+                  .valueProperty()
+                  .findFirst()) !=
+              null,
+        ),
+      );
     }
 
     try {
@@ -683,6 +731,22 @@ mixin ElectrumXInterface on Bip39HDWallet {
     return txData.copyWith(
       raw: builtTx.toHex(),
       vSize: vSize,
+      tempTx: TransactionV2(
+        walletId: walletId,
+        blockHash: null,
+        hash: builtTx.getId(),
+        txid: builtTx.getId(),
+        height: null,
+        timestamp: DateTime.timestamp().millisecondsSinceEpoch ~/ 1000,
+        inputs: List.unmodifiable(tempInputs),
+        outputs: List.unmodifiable(tempOutputs),
+        version: version,
+        type: tempOutputs.map((e) => e.walletOwns).fold(true, (p, e) => p &= e)
+            ? TransactionType.sentToSelf
+            : TransactionType.outgoing,
+        subType: TransactionSubType.none,
+        otherData: null,
+      ),
     );
   }
 
@@ -1749,7 +1813,7 @@ mixin ElectrumXInterface on Bip39HDWallet {
       // mark utxos as used
       await mainDB.putUTXOs(txData.usedUTXOs!);
 
-      return txData;
+      return await updateSentCachedTxData(txData: txData);
     } catch (e, s) {
       Logging.instance.log("Exception rethrown from confirmSend(): $e\n$s",
           level: LogLevel.Error);

lib/wallets/wallet/wallet_mixin_interfaces/spark_interface.dart

@@ -7,6 +7,9 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter_libsparkmobile/flutter_libsparkmobile.dart';
 import 'package:isar/isar.dart';
 import 'package:stackwallet/models/balance.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/input_v2.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/output_v2.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/transaction_v2.dart';
 import 'package:stackwallet/models/isar/models/isar_models.dart';
 import 'package:stackwallet/models/signing_data.dart';
 import 'package:stackwallet/utilities/amount/amount.dart';
@@ -331,6 +334,10 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
       );
     }
 
+    // temp tx data to show in gui while waiting for real data from server
+    final List<InputV2> tempInputs = [];
+    final List<OutputV2> tempOutputs = [];
+
     for (int i = 0; i < (txData.recipients?.length ?? 0); i++) {
       if (txData.recipients![i].amount.raw == BigInt.zero) {
         continue;
@@ -354,8 +361,62 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
         scriptPubKey,
         recipientsWithFeeSubtracted[i].amount.raw.toInt(),
       );
+
+      tempOutputs.add(
+        OutputV2.isarCantDoRequiredInDefaultConstructor(
+          scriptPubKeyHex: scriptPubKey.toHex,
+          valueStringSats: recipientsWithFeeSubtracted[i].amount.raw.toString(),
+          addresses: [
+            recipientsWithFeeSubtracted[i].address.toString(),
+          ],
+          walletOwns: (await mainDB.isar.addresses
+                  .where()
+                  .walletIdEqualTo(walletId)
+                  .filter()
+                  .valueEqualTo(recipientsWithFeeSubtracted[i].address)
+                  .valueProperty()
+                  .findFirst()) !=
+              null,
+        ),
+      );
     }
 
+    if (sparkRecipientsWithFeeSubtracted != null) {
+      for (final recip in sparkRecipientsWithFeeSubtracted) {
+        tempOutputs.add(
+          OutputV2.isarCantDoRequiredInDefaultConstructor(
+            scriptPubKeyHex: Uint8List.fromList([OP_SPARKSMINT]).toHex,
+            valueStringSats: recip.amount.raw.toString(),
+            addresses: [
+              recip.address.toString(),
+            ],
+            walletOwns: (await mainDB.isar.addresses
+                    .where()
+                    .walletIdEqualTo(walletId)
+                    .filter()
+                    .valueEqualTo(recip.address)
+                    .valueProperty()
+                    .findFirst()) !=
+                null,
+          ),
+        );
+      }
+    }
+
+    tempInputs.add(
+      InputV2.isarCantDoRequiredInDefaultConstructor(
+        scriptSigHex: "d3",
+        sequence: 0xffffffff,
+        outpoint: null,
+        addresses: [],
+        valueStringSats: "0",
+        witness: null,
+        innerRedeemScriptAsm: null,
+        coinbase: null,
+        walletOwns: true,
+      ),
+    );
+
     final extractedTx = txb.buildIncomplete();
     extractedTx.addInput(
       '0000000000000000000000000000000000000000000000000000000000000000'
@@ -412,12 +473,33 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
       );
     }
 
+    final fee = Amount(
+      rawValue: BigInt.from(spend.fee),
+      fractionDigits: cryptoCurrency.fractionDigits,
+    );
     return txData.copyWith(
       raw: rawTxHex,
       vSize: extractedTx.virtualSize(),
-      fee: Amount(
+      fee: fee,
-        rawValue: BigInt.from(spend.fee),
+      tempTx: TransactionV2(
-        fractionDigits: cryptoCurrency.fractionDigits,
+        walletId: walletId,
+        blockHash: null,
+        hash: extractedTx.getId(),
+        txid: extractedTx.getId(),
+        timestamp: DateTime.timestamp().millisecondsSinceEpoch ~/ 1000,
+        inputs: List.unmodifiable(tempInputs),
+        outputs: List.unmodifiable(tempOutputs),
+        type: tempOutputs.map((e) => e.walletOwns).fold(true, (p, e) => p &= e)
+            ? TransactionType.sentToSelf
+            : TransactionType.outgoing,
+        subType: TransactionSubType.sparkSpend,
+        otherData: jsonEncode(
+          {
+            "anonFees": fee.toJsonString(),
+          },
+        ),
+        height: null,
+        version: 3,
       ),
       // TODO used coins
     );
@@ -448,7 +530,7 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
       // // mark utxos as used
       // await mainDB.putUTXOs(txData.usedUTXOs!);
 
-      return txData;
+      return await updateSentCachedTxData(txData: txData);
     } catch (e, s) {
       Logging.instance.log("Exception rethrown from confirmSend(): $e\n$s",
           level: LogLevel.Error);
@@ -702,7 +784,7 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
           : currentHeight;
       const txVersion = 1;
       final List<SigningData> vin = [];
-      final List<(dynamic, int)> vout = [];
+      final List<(dynamic, int, String?)> vout = [];
 
       BigInt nFeeRet = BigInt.zero;
 
@@ -821,13 +903,15 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
         final dummyTxb = btc.TransactionBuilder(network: _bitcoinDartNetwork);
         dummyTxb.setVersion(txVersion);
         dummyTxb.setLockTime(lockTime);
-        for (final recipient in dummyRecipients) {
+        for (int i = 0; i < dummyRecipients.length; i++) {
+          final recipient = dummyRecipients[i];
           if (recipient.amount < cryptoCurrency.dustLimit.raw.toInt()) {
             throw Exception("Output amount too small");
           }
           vout.add((
             recipient.scriptPubKey,
             recipient.amount,
+            singleTxOutputs[i].address,
           ));
         }
 
@@ -860,7 +944,7 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
             final changeAddress = await getCurrentChangeAddress();
             vout.insert(
               nChangePosInOut,
-              (changeAddress!.value, nChange.toInt()),
+              (changeAddress!.value, nChange.toInt(), null),
             );
           }
         }
@@ -942,8 +1026,13 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
           );
 
           int i = 0;
-          for (final recipient in recipients) {
+          for (int i = 0; i < recipients.length; i++) {
-            final out = (recipient.scriptPubKey, recipient.amount);
+            final recipient = recipients[i];
+            final out = (
+              recipient.scriptPubKey,
+              recipient.amount,
+              singleTxOutputs[i].address,
+            );
             while (i < vout.length) {
               if (vout[i].$1 is Uint8List &&
                   (vout[i].$1 as Uint8List).isNotEmpty &&
@@ -973,6 +1062,10 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
         continue;
       }
 
+      // temp tx data to show in gui while waiting for real data from server
+      final List<InputV2> tempInputs = [];
+      final List<OutputV2> tempOutputs = [];
+
       // sign
       final txb = btc.TransactionBuilder(network: _bitcoinDartNetwork);
       txb.setVersion(txVersion);
@@ -985,10 +1078,50 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
               1, // minus 1 is important. 0xffffffff on its own will burn funds
           input.output,
         );
+
+        tempInputs.add(
+          InputV2.isarCantDoRequiredInDefaultConstructor(
+            scriptSigHex: txb.inputs.first.script?.toHex,
+            sequence: 0xffffffff - 1,
+            outpoint: OutpointV2.isarCantDoRequiredInDefaultConstructor(
+              txid: input.utxo.txid,
+              vout: input.utxo.vout,
+            ),
+            addresses: input.utxo.address == null ? [] : [input.utxo.address!],
+            valueStringSats: input.utxo.value.toString(),
+            witness: null,
+            innerRedeemScriptAsm: null,
+            coinbase: null,
+            walletOwns: true,
+          ),
+        );
       }
 
       for (final output in vout) {
-        txb.addOutput(output.$1, output.$2);
+        final addressOrScript = output.$1;
+        final value = output.$2;
+        txb.addOutput(addressOrScript, value);
+
+        tempOutputs.add(
+          OutputV2.isarCantDoRequiredInDefaultConstructor(
+            scriptPubKeyHex:
+                addressOrScript is Uint8List ? addressOrScript.toHex : "000000",
+            valueStringSats: value.toString(),
+            addresses: [
+              if (addressOrScript is String) addressOrScript.toString(),
+            ],
+            walletOwns: (await mainDB.isar.addresses
+                    .where()
+                    .walletIdEqualTo(walletId)
+                    .filter()
+                    .valueEqualTo(addressOrScript is Uint8List
+                        ? output.$3!
+                        : addressOrScript as String)
+                    .valueProperty()
+                    .findFirst()) !=
+                null,
+          ),
+        );
       }
 
       try {
@@ -1035,6 +1168,23 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
           fractionDigits: cryptoCurrency.fractionDigits,
         ),
         usedUTXOs: vin.map((e) => e.utxo).toList(),
+        tempTx: TransactionV2(
+          walletId: walletId,
+          blockHash: null,
+          hash: builtTx.getId(),
+          txid: builtTx.getId(),
+          timestamp: DateTime.timestamp().millisecondsSinceEpoch ~/ 1000,
+          inputs: List.unmodifiable(tempInputs),
+          outputs: List.unmodifiable(tempOutputs),
+          type:
+              tempOutputs.map((e) => e.walletOwns).fold(true, (p, e) => p &= e)
+                  ? TransactionType.sentToSelf
+                  : TransactionType.outgoing,
+          subType: TransactionSubType.sparkMint,
+          otherData: null,
+          height: null,
+          version: 3,
+        ),
       );
 
       if (nFeeRet.toInt() < data.vSize!) {