cake_wallet/cw_bitcoin/lib/electrum_wallet_snapshot.dart

87 lines
3.1 KiB
Dart

import 'dart:convert';
import 'package:bitcoin_base/bitcoin_base.dart';
import 'package:cw_bitcoin/bitcoin_address_record.dart';
import 'package:cw_bitcoin/electrum_balance.dart';
import 'package:cw_core/pathForWallet.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_core/utils/file.dart';
import 'package:cw_core/wallet_type.dart';
class ElectrumWalletSnapshot {
ElectrumWalletSnapshot({
required this.name,
required this.type,
required this.password,
required this.mnemonic,
required this.addresses,
required this.balance,
required this.regularAddressIndex,
required this.changeAddressIndex,
required this.addressPageType,
this.derivationType,
this.derivationPath,
});
final String name;
final String password;
final WalletType type;
final String? addressPageType;
String mnemonic;
List<BitcoinAddressRecord> addresses;
ElectrumBalance balance;
Map<String, int> regularAddressIndex;
Map<String, int> changeAddressIndex;
DerivationType? derivationType;
String? derivationPath;
static Future<ElectrumWalletSnapshot> load(
String name, WalletType type, String password, BasedUtxoNetwork network) async {
final path = await pathForWallet(name: name, type: type);
final jsonSource = await read(path: path, password: password);
final data = json.decode(jsonSource) as Map;
final addressesTmp = data['addresses'] as List? ?? <Object>[];
final mnemonic = data['mnemonic'] as String;
final addresses = addressesTmp
.whereType<String>()
.map((addr) => BitcoinAddressRecord.fromJSON(addr, network))
.toList();
final balance = ElectrumBalance.fromJSON(data['balance'] as String) ??
ElectrumBalance(confirmed: 0, unconfirmed: 0, frozen: 0);
var regularAddressIndexByType = {SegwitAddresType.p2wpkh.toString(): 0};
var changeAddressIndexByType = {SegwitAddresType.p2wpkh.toString(): 0};
final derivationType =
DerivationType.values[(data['derivationTypeIndex'] as int?) ?? DerivationType.electrum.index];
final derivationPath = data['derivationPath'] as String? ?? "m/0'/0";
try {
regularAddressIndexByType = {
SegwitAddresType.p2wpkh.toString(): int.parse(data['account_index'] as String? ?? '0')
};
changeAddressIndexByType = {
SegwitAddresType.p2wpkh.toString():
int.parse(data['change_address_index'] as String? ?? '0')
};
} catch (_) {
try {
regularAddressIndexByType = data["account_index"] as Map<String, int>? ?? {};
changeAddressIndexByType = data["change_address_index"] as Map<String, int>? ?? {};
} catch (_) {}
}
return ElectrumWalletSnapshot(
name: name,
type: type,
password: password,
mnemonic: mnemonic,
addresses: addresses,
balance: balance,
regularAddressIndex: regularAddressIndexByType,
changeAddressIndex: changeAddressIndexByType,
addressPageType: data['address_page_type'] as String?,
derivationType: derivationType,
derivationPath: derivationPath,
);
}
}