stack_wallet/lib/wallets/wallet/impl/bitcoin_wallet.dart
2024-05-27 18:01:41 -06:00

123 lines
4.2 KiB
Dart

import 'package:isar/isar.dart';
import '../../../models/isar/models/blockchain_data/address.dart';
import '../../../utilities/amount/amount.dart';
import '../../crypto_currency/crypto_currency.dart';
import '../../crypto_currency/interfaces/paynym_currency_interface.dart';
import '../intermediate/bip39_hd_wallet.dart';
import '../wallet_mixin_interfaces/coin_control_interface.dart';
import '../wallet_mixin_interfaces/electrumx_interface.dart';
import '../wallet_mixin_interfaces/paynym_interface.dart';
class BitcoinWallet<T extends PaynymCurrencyInterface> extends Bip39HDWallet<T>
with ElectrumXInterface<T>, CoinControlInterface, PaynymInterface<T> {
@override
int get isarTransactionVersion => 2;
BitcoinWallet(CryptoCurrencyNetwork network) : super(Bitcoin(network) as T);
@override
FilterOperation? get changeAddressFilterOperation =>
FilterGroup.and(standardChangeAddressFilters);
@override
FilterOperation? get receivingAddressFilterOperation =>
FilterGroup.and(standardReceivingAddressFilters);
// ===========================================================================
@override
Future<List<Address>> fetchAddressesForElectrumXScan() async {
final allAddresses = await mainDB
.getAddresses(walletId)
.filter()
.not()
.group(
(q) => q
.typeEqualTo(AddressType.nonWallet)
.or()
.subTypeEqualTo(AddressSubType.nonWallet),
)
.findAll();
return allAddresses;
}
// ===========================================================================
@override
Amount roughFeeEstimate(int inputCount, int outputCount, int feeRatePerKB) {
return Amount(
rawValue: BigInt.from(
((42 + (272 * inputCount) + (128 * outputCount)) / 4).ceil() *
(feeRatePerKB / 1000).ceil(),
),
fractionDigits: cryptoCurrency.fractionDigits,
);
}
@override
int estimateTxFee({required int vSize, required int feeRatePerKB}) {
return vSize * (feeRatePerKB / 1000).ceil();
}
//
// @override
// Future<TxData> coinSelection({required TxData txData}) async {
// final isCoinControl = txData.utxos != null;
// final isSendAll = txData.amount == info.cachedBalance.spendable;
//
// final utxos =
// txData.utxos?.toList() ?? await mainDB.getUTXOs(walletId).findAll();
//
// final currentChainHeight = await chainHeight;
// final List<UTXO> spendableOutputs = [];
// int spendableSatoshiValue = 0;
//
// // Build list of spendable outputs and totaling their satoshi amount
// for (final utxo in utxos) {
// if (utxo.isBlocked == false &&
// utxo.isConfirmed(currentChainHeight, cryptoCurrency.minConfirms) &&
// utxo.used != true) {
// spendableOutputs.add(utxo);
// spendableSatoshiValue += utxo.value;
// }
// }
//
// if (isCoinControl && spendableOutputs.length < utxos.length) {
// throw ArgumentError("Attempted to use an unavailable utxo");
// }
//
// if (spendableSatoshiValue < txData.amount!.raw.toInt()) {
// throw Exception("Insufficient balance");
// } else if (spendableSatoshiValue == txData.amount!.raw.toInt() &&
// !isSendAll) {
// throw Exception("Insufficient balance to pay transaction fee");
// }
//
// if (isCoinControl) {
// } else {
// final selection = cs.coinSelection(
// spendableOutputs
// .map((e) => cs.InputModel(
// i: e.vout,
// txid: e.txid,
// value: e.value,
// address: e.address,
// ))
// .toList(),
// txData.recipients!
// .map((e) => cs.OutputModel(
// address: e.address,
// value: e.amount.raw.toInt(),
// ))
// .toList(),
// txData.feeRateAmount!,
// 10, // TODO: ???????????????????????????????
// );
//
// // .inputs and .outputs will be null if no solution was found
// if (selection.inputs!.isEmpty || selection.outputs!.isEmpty) {
// throw Exception("coin selection failed");
// }
// }
// }
}