cake_wallet/cw_ethereum/lib/ethereum_transaction_history.dart

74 lines
2.4 KiB
Dart
Raw Normal View History

2023-07-21 15:37:33 +00:00
import 'dart:convert';
2022-12-28 15:02:04 +00:00
import 'dart:core';
2023-07-21 15:37:33 +00:00
import 'package:cw_core/pathForWallet.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_ethereum/file.dart';
2022-12-28 15:02:04 +00:00
import 'package:mobx/mobx.dart';
import 'package:cw_core/transaction_history.dart';
import 'package:cw_ethereum/ethereum_transaction_info.dart';
part 'ethereum_transaction_history.g.dart';
2023-07-21 15:37:33 +00:00
const transactionsHistoryFileName = 'transactions.json';
class EthereumTransactionHistory = EthereumTransactionHistoryBase with _$EthereumTransactionHistory;
2022-12-28 15:02:04 +00:00
abstract class EthereumTransactionHistoryBase
extends TransactionHistoryBase<EthereumTransactionInfo> with Store {
2023-07-21 15:37:33 +00:00
EthereumTransactionHistoryBase({required this.walletInfo, required String password})
: _password = password {
2022-12-28 15:02:04 +00:00
transactions = ObservableMap<String, EthereumTransactionInfo>();
}
2023-07-21 15:37:33 +00:00
final WalletInfo walletInfo;
String _password;
Future<void> init() async => await _load();
2022-12-28 15:02:04 +00:00
@override
Future<void> save() async {
2023-07-21 15:37:33 +00:00
try {
final dirPath = await pathForWalletDir(name: walletInfo.name, type: walletInfo.type);
final path = '$dirPath/$transactionsHistoryFileName';
final data = json.encode({'transactions': transactions});
await writeData(path: path, password: _password, data: data);
} catch (e) {
print('Error while save bitcoin transaction history: ${e.toString()}');
}
}
2022-12-28 15:02:04 +00:00
@override
2023-07-21 15:37:33 +00:00
void addOne(EthereumTransactionInfo transaction) => transactions[transaction.id] = transaction;
2022-12-28 15:02:04 +00:00
@override
void addMany(Map<String, EthereumTransactionInfo> transactions) =>
this.transactions.addAll(transactions);
2023-07-21 15:37:33 +00:00
Future<Map<String, dynamic>> _read() async {
final dirPath = await pathForWalletDir(name: walletInfo.name, type: walletInfo.type);
final path = '$dirPath/$transactionsHistoryFileName';
final content = await read(path: path, password: _password);
return json.decode(content) as Map<String, dynamic>;
}
Future<void> _load() async {
try {
final content = await _read();
final txs = content['transactions'] as Map<String, dynamic>? ?? {};
txs.entries.forEach((entry) {
final val = entry.value;
if (val is Map<String, dynamic>) {
final tx = EthereumTransactionInfo.fromJson(val);
_update(tx);
}
});
} catch (e) {
print(e);
}
}
void _update(EthereumTransactionInfo transaction) => transactions[transaction.id] = transaction;
2022-12-28 15:02:04 +00:00
}