cake_wallet/cw_bitcoin/lib/bitcoin_wallet_service.dart
2023-09-07 22:52:03 +03:00

111 lines
4 KiB
Dart

import 'dart:io';
import 'package:cw_bitcoin/bitcoin_mnemonic.dart';
import 'package:cw_bitcoin/bitcoin_mnemonic_is_incorrect_exception.dart';
import 'package:cw_bitcoin/bitcoin_wallet_creation_credentials.dart';
import 'package:cw_bitcoin/encryption_file_utils.dart';
import 'package:cw_core/unspent_coins_info.dart';
import 'package:cw_core/wallet_base.dart';
import 'package:cw_core/wallet_service.dart';
import 'package:cw_bitcoin/bitcoin_wallet.dart';
import 'package:cw_core/pathForWallet.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_core/wallet_type.dart';
import 'package:hive/hive.dart';
import 'package:collection/collection.dart';
class BitcoinWalletService extends WalletService<
BitcoinNewWalletCredentials,
BitcoinRestoreWalletFromSeedCredentials,
BitcoinRestoreWalletFromWIFCredentials> {
BitcoinWalletService(this.walletInfoSource, this.unspentCoinsInfoSource, this.isDirect);
final Box<WalletInfo> walletInfoSource;
final Box<UnspentCoinsInfo> unspentCoinsInfoSource;
final bool isDirect;
@override
WalletType getType() => WalletType.bitcoin;
@override
Future<BitcoinWallet> create(BitcoinNewWalletCredentials credentials) async {
final wallet = await BitcoinWalletBase.create(
mnemonic: await generateMnemonic(),
password: credentials.password!,
walletInfo: credentials.walletInfo!,
unspentCoinsInfo: unspentCoinsInfoSource,
encryptionFileUtils: encryptionFileUtilsFor(isDirect));
await wallet.save();
await wallet.init();
return wallet;
}
@override
Future<bool> isWalletExit(String name) async =>
File(await pathForWallet(name: name, type: getType())).existsSync();
@override
Future<BitcoinWallet> openWallet(String name, String password) async {
final walletInfo = walletInfoSource.values.firstWhereOrNull(
(info) => info.id == WalletBase.idFor(name, getType()))!;
final wallet = await BitcoinWalletBase.open(
password: password,
name: name,
walletInfo: walletInfo,
unspentCoinsInfo: unspentCoinsInfoSource,
encryptionFileUtils: encryptionFileUtilsFor(isDirect));
await wallet.init();
return wallet;
}
@override
Future<void> remove(String wallet) async {
File(await pathForWalletDir(name: wallet, type: getType()))
.delete(recursive: true);
final walletInfo = walletInfoSource.values.firstWhereOrNull(
(info) => info.id == WalletBase.idFor(wallet, getType()))!;
await walletInfoSource.delete(walletInfo.key);
}
@override
Future<void> rename(String currentName, String password, String newName) async {
final currentWalletInfo = walletInfoSource.values.firstWhereOrNull(
(info) => info.id == WalletBase.idFor(currentName, getType()))!;
final currentWallet = await BitcoinWalletBase.open(
password: password,
name: currentName,
walletInfo: currentWalletInfo,
unspentCoinsInfo: unspentCoinsInfoSource,
encryptionFileUtils: encryptionFileUtilsFor(isDirect));
await currentWallet.renameWalletFiles(newName);
final newWalletInfo = currentWalletInfo;
newWalletInfo.id = WalletBase.idFor(newName, getType());
newWalletInfo.name = newName;
await walletInfoSource.put(currentWalletInfo.key, newWalletInfo);
}
@override
Future<BitcoinWallet> restoreFromKeys(
BitcoinRestoreWalletFromWIFCredentials credentials) async =>
throw UnimplementedError();
@override
Future<BitcoinWallet> restoreFromSeed(
BitcoinRestoreWalletFromSeedCredentials credentials) async {
if (!validateMnemonic(credentials.mnemonic)) {
throw BitcoinMnemonicIsIncorrectException();
}
final wallet = await BitcoinWalletBase.create(
password: credentials.password!,
mnemonic: credentials.mnemonic,
walletInfo: credentials.walletInfo!,
unspentCoinsInfo: unspentCoinsInfoSource,
encryptionFileUtils: encryptionFileUtilsFor(isDirect));
await wallet.save();
await wallet.init();
return wallet;
}
}