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More fee fixes

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This commit is contained in:
Hector Chu 2024-04-26 11:19:40 +01:00
parent 66d98a282c
commit 796c95315f
1 changed files with 9 additions and 7 deletions
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16
cw_bitcoin/lib/litecoin_wallet.dart
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@ -303,8 +303,11 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
script: outputs[0].toOutput.scriptPubKey,
value: utxos.sumOfUtxosValue())];
}
final preOutputSum = outputs.fold<BigInt>(BigInt.zero,
(acc, output) => acc + output.toOutput.amount);
final fee = utxos.sumOfUtxosValue() - preOutputSum;
final txb = BitcoinTransactionBuilder(utxos: utxos,
outputs: outputs, fee: BigInt.zero, network: network);
outputs: outputs, fee: fee, network: network);
final scanSecret = mwebHd.derive(0x80000000).privKey!;
final spendSecret = mwebHd.derive(0x80000001).privKey!;
final stub = await CwMweb.stub();
@ -317,17 +320,16 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
final tx = BtcTransaction.fromRaw(hex.encode(resp.rawTx));
final posUtxos = utxos.where((utxo) => tx.inputs.any((input) =>
input.txId == utxo.utxo.txHash && input.txIndex == utxo.utxo.vout)).toList();
final preOutputSum = outputs.fold<int>(0, (acc, output) => acc + output.toOutput.amount.toInt());
final posOutputSum = tx.outputs.fold<int>(0, (acc, output) => acc + output.amount.toInt());
final mwebInputSum = utxos.sumOfUtxosValue() - posUtxos.sumOfUtxosValue();
final expectedPegin = max(0, preOutputSum - mwebInputSum.toInt());
var fee = posOutputSum - expectedPegin;
if (expectedPegin > 0) {
fee += await super.calcFee(utxos: posUtxos, outputs: tx.outputs.map((output) =>
final expectedPegin = max(0, (preOutputSum - mwebInputSum).toInt());
var feeIncrease = posOutputSum - expectedPegin;
if (expectedPegin > 0 && fee == 0) {
feeIncrease += await super.calcFee(utxos: posUtxos, outputs: tx.outputs.map((output) =>
BitcoinScriptOutput(script: output.scriptPubKey, value: output.amount)).toList(),
network: network, memo: memo, feeRate: feeRate) + feeRate * 41;
}
return fee;
return fee.toInt() + feeIncrease;
}
@override