stack_wallet/lib/wallets/crypto_currency/coins/bitcoin.dart
2023-11-07 12:19:42 -06:00

178 lines
5 KiB
Dart

import 'package:coinlib_flutter/coinlib_flutter.dart' as coinlib;
import 'package:stackwallet/models/isar/models/blockchain_data/address.dart';
import 'package:stackwallet/utilities/amount/amount.dart';
import 'package:stackwallet/utilities/enums/coin_enum.dart';
import 'package:stackwallet/utilities/enums/derive_path_type_enum.dart';
import 'package:stackwallet/wallets/crypto_currency/crypto_currency.dart';
import 'package:stackwallet/wallets/crypto_currency/intermediate/bip39_hd_currency.dart';
class Bitcoin extends Bip39HDCurrency {
Bitcoin(super.network) {
switch (network) {
case CryptoCurrencyNetwork.main:
coin = Coin.bitcoin;
case CryptoCurrencyNetwork.test:
coin = Coin.bitcoinTestNet;
default:
throw Exception("Unsupported network: $network");
}
}
@override
List<DerivePathType> get supportedDerivationPathTypes => [
DerivePathType.bip44,
DerivePathType.bip49,
DerivePathType.bip84,
];
@override
String get genesisHash {
switch (network) {
case CryptoCurrencyNetwork.main:
return "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f";
case CryptoCurrencyNetwork.test:
return "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943";
default:
throw Exception("Unsupported network: $network");
}
}
@override
Amount get dustLimit => Amount(
rawValue: BigInt.from(294),
fractionDigits: fractionDigits,
);
Amount get dustLimitP2PKH => Amount(
rawValue: BigInt.from(546),
fractionDigits: fractionDigits,
);
@override
coinlib.NetworkParams get networkParams {
switch (network) {
case CryptoCurrencyNetwork.main:
return const coinlib.NetworkParams(
wifPrefix: 0x80,
p2pkhPrefix: 0x00,
p2shPrefix: 0x05,
privHDPrefix: 0x0488ade4,
pubHDPrefix: 0x0488b21e,
bech32Hrp: "bc",
messagePrefix: '\x18Bitcoin Signed Message:\n',
);
case CryptoCurrencyNetwork.test:
return const coinlib.NetworkParams(
wifPrefix: 0xef,
p2pkhPrefix: 0x6f,
p2shPrefix: 0xc4,
privHDPrefix: 0x04358394,
pubHDPrefix: 0x043587cf,
bech32Hrp: "tb",
messagePrefix: "\x18Bitcoin Signed Message:\n",
);
default:
throw Exception("Unsupported network: $network");
}
}
@override
String constructDerivePath({
required DerivePathType derivePathType,
int account = 0,
required int chain,
required int index,
}) {
String coinType;
switch (networkParams.wifPrefix) {
case 0x80:
coinType = "0"; // btc mainnet
break;
case 0xef:
coinType = "1"; // btc testnet
break;
default:
throw Exception("Invalid Bitcoin network wif used!");
}
int purpose;
switch (derivePathType) {
case DerivePathType.bip44:
purpose = 44;
break;
case DerivePathType.bip49:
purpose = 49;
break;
case DerivePathType.bip84:
purpose = 84;
break;
default:
throw Exception("DerivePathType $derivePathType not supported");
}
return "m/$purpose'/$coinType'/$account'/$chain/$index";
}
@override
({coinlib.Address address, AddressType addressType}) getAddressForPublicKey({
required coinlib.ECPublicKey publicKey,
required DerivePathType derivePathType,
}) {
switch (derivePathType) {
case DerivePathType.bip44:
final addr = coinlib.P2PKHAddress.fromPublicKey(
publicKey,
version: networkParams.p2pkhPrefix,
);
return (address: addr, addressType: AddressType.p2pkh);
case DerivePathType.bip49:
// addressString = P2SH(
// data: PaymentData(
// redeem: P2WPKH(data: data, network: _network).data),
// network: _network)
// .data
// .address!;
// todo ?????????????????? Does not match with current BTC
final adr = coinlib.P2WPKHAddress.fromPublicKey(
publicKey,
hrp: networkParams.bech32Hrp,
);
final addr = coinlib.P2SHAddress.fromHash(
adr.program.pkHash,
version: networkParams.p2shPrefix,
);
// TODO ??????????????
return (address: addr, addressType: AddressType.p2sh);
case DerivePathType.bip84:
final addr = coinlib.P2WPKHAddress.fromPublicKey(
publicKey,
hrp: networkParams.bech32Hrp,
);
return (address: addr, addressType: AddressType.p2wpkh);
default:
throw Exception("DerivePathType $derivePathType not supported");
}
}
@override
// change this to change the number of confirms a tx needs in order to show as confirmed
int get minConfirms => 1;
@override
bool validateAddress(String address) {
try {
coinlib.Address.fromString(address, networkParams);
return true;
} catch (_) {
return false;
}
}
}