cake_wallet/cw_evm/lib/evm_chain_transaction_history.dart

94 lines
3 KiB
Dart

import 'dart:convert';
import 'dart:core';
import 'dart:developer';
import 'package:cw_core/encryption_file_utils.dart';
import 'package:cw_core/pathForWallet.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_evm/evm_chain_transaction_info.dart';
import 'package:mobx/mobx.dart';
import 'package:cw_core/transaction_history.dart';
part 'evm_chain_transaction_history.g.dart';
abstract class EVMChainTransactionHistory = EVMChainTransactionHistoryBase
with _$EVMChainTransactionHistory;
abstract class EVMChainTransactionHistoryBase
extends TransactionHistoryBase<EVMChainTransactionInfo> with Store {
EVMChainTransactionHistoryBase(
{required this.walletInfo, required String password, required this.encryptionFileUtils})
: _password = password {
transactions = ObservableMap<String, EVMChainTransactionInfo>();
}
String _password;
final WalletInfo walletInfo;
final EncryptionFileUtils encryptionFileUtils;
//! Method to be overridden by all child classes
String getTransactionHistoryFileName();
EVMChainTransactionInfo getTransactionInfo(Map<String, dynamic> val);
//! Common methods across all child classes
Future<void> init() async {
clear();
await _load();
}
@override
Future<void> save() async {
final transactionsHistoryFileNameForWallet = getTransactionHistoryFileName();
try {
final dirPath = await pathForWalletDir(name: walletInfo.name, type: walletInfo.type);
String path = '$dirPath/$transactionsHistoryFileNameForWallet';
final data = json.encode({'transactions': transactions});
await encryptionFileUtils.write(path: path, password: _password, data: data);
} catch (e, s) {
log('Error while saving ${walletInfo.type.name} transaction history: ${e.toString()}');
log(s.toString());
}
}
@override
void addOne(EVMChainTransactionInfo transaction) => transactions[transaction.id] = transaction;
@override
void addMany(Map<String, EVMChainTransactionInfo> transactions) =>
this.transactions.addAll(transactions);
Future<Map<String, dynamic>> _read() async {
final transactionsHistoryFileNameForWallet = getTransactionHistoryFileName();
final dirPath = await pathForWalletDir(name: walletInfo.name, type: walletInfo.type);
String path = '$dirPath/$transactionsHistoryFileNameForWallet';
final content = await encryptionFileUtils.read(path: path, password: _password);
if (content.isEmpty) {
return {};
}
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>? ?? {};
for (var entry in txs.entries) {
final val = entry.value;
if (val is Map<String, dynamic>) {
final tx = getTransactionInfo(val);
_update(tx);
}
}
print('doneee');
} catch (e) {
log(e.toString());
}
}
void _update(EVMChainTransactionInfo transaction) => transactions[transaction.id] = transaction;
}