cake_wallet/cw_zano/lib/zano_wallet.dart

499 lines
16 KiB
Dart

import 'dart:async';
import 'dart:convert';
import 'dart:ffi';
import 'dart:io';
import 'dart:math';
import 'package:cw_core/crypto_currency.dart';
import 'package:cw_core/monero_wallet_utils.dart';
import 'package:cw_core/node.dart';
import 'package:cw_core/pathForWallet.dart';
import 'package:cw_core/pending_transaction.dart';
import 'package:cw_core/sync_status.dart';
import 'package:cw_core/transaction_priority.dart';
import 'package:cw_core/wallet_base.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_zano/api/calls.dart' as calls;
import 'package:cw_zano/api/model/history.dart';
import 'package:cw_zano/api/model/zano_wallet_keys.dart';
import 'package:cw_zano/api/wallet.dart' as zano_wallet;
import 'package:cw_zano/api/zano_api.dart';
import 'package:cw_zano/pending_zano_transaction.dart';
import 'package:cw_zano/zano_balance.dart';
import 'package:cw_zano/zano_transaction_creation_credentials.dart';
import 'package:cw_zano/zano_transaction_history.dart';
import 'package:cw_zano/zano_transaction_info.dart';
import 'package:cw_zano/zano_wallet_addresses.dart';
import 'package:ffi/ffi.dart';
import 'package:mobx/mobx.dart';
part 'zano_wallet.g.dart';
const moneroBlockSize = 1000;
class ZanoWallet = ZanoWalletBase with _$ZanoWallet;
typedef _load_wallet = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>, Int8);
typedef _LoadWallet = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>, int);
const int zanoMixin = 10;
abstract class ZanoWalletBase
extends WalletBase<ZanoBalance, ZanoTransactionHistory, ZanoTransactionInfo> with Store {
ZanoWalletBase(WalletInfo walletInfo)
: balance = ObservableMap.of({CryptoCurrency.zano: ZanoBalance(total: 0, unlocked: 0)}),
_isTransactionUpdating = false,
_hasSyncAfterStartup = false,
walletAddresses = ZanoWalletAddresses(walletInfo),
syncStatus = NotConnectedSyncStatus(),
super(walletInfo) {
transactionHistory = ZanoTransactionHistory();
/*_onAccountChangeReaction =
reaction((_) => walletAddresses.account, (Account? account) {
if (account == null) {
return;
}
balance.addAll(getZanoBalance(accountIndex: account.id));
/**walletAddresses.updateSubaddressList(accountIndex: account.id);*/
});*/
}
List<History> history = [];
String assetId = '';
static const int _autoSaveInterval = 30;
@override
ZanoWalletAddresses walletAddresses;
@override
@observable
SyncStatus syncStatus;
@override
@observable
ObservableMap<CryptoCurrency, ZanoBalance> balance;
@override
String seed = '';
@override
ZanoWalletKeys keys = ZanoWalletKeys(
privateSpendKey: '', privateViewKey: '', publicSpendKey: '', publicViewKey: '');
zano_wallet.SyncListener? _listener;
/**ReactionDisposer? _onAccountChangeReaction;*/
bool _isTransactionUpdating;
bool _hasSyncAfterStartup;
Timer? _autoSaveTimer;
int _hWallet = 0;
int get hWallet => _hWallet;
set hWallet(int value) {
_hWallet = value;
}
Future<void> init() async {
await walletAddresses.init();
///balance.addAll(getZanoBalance(/**accountIndex: walletAddresses.account?.id ?? 0*/));
_setListeners();
await updateTransactions();
if (walletInfo.isRecovery) {
///zano_wallet.setRecoveringFromSeed(isRecovery: walletInfo.isRecovery);
if (zano_wallet.getCurrentHeight(hWallet) <= 1) {
zano_wallet.setRefreshFromBlockHeight(height: walletInfo.restoreHeight);
}
}
_autoSaveTimer =
Timer.periodic(Duration(seconds: _autoSaveInterval), (_) async => await save());
}
@override
Future<void>? updateBalance() => null;
@override
void close() {
_listener?.stop();
/**_onAccountChangeReaction?.reaction.dispose();*/
_autoSaveTimer?.cancel();
}
@override
Future<void> connectToNode({required Node node}) async {
try {
syncStatus = ConnectingSyncStatus();
await zano_wallet.setupNode(
address: "195.201.107.230:33336", // node.uriRaw,
login: "", // node.login,
password: "", // node.password,
useSSL: false, // node.useSSL ?? false,
isLightWallet: false, // FIXME: hardcoded value
/*socksProxyAddress: node.socksProxyAddress*/
);
//zano_wallet.setTrustedDaemon(node.trusted);
syncStatus = ConnectedSyncStatus();
} catch (e) {
syncStatus = FailedSyncStatus();
print(e);
}
}
@override
Future<void> startSync() async {
try {
_setInitialHeight();
} catch (_) {}
try {
syncStatus = AttemptingSyncStatus();
//zano_wallet.startRefresh();
print("start refresh");
_setListeners();
_listener?.start(this, hWallet);
} catch (e) {
syncStatus = FailedSyncStatus();
print(e);
rethrow;
}
}
@override
Future<PendingTransaction> createTransaction(Object credentials) async {
final creds = credentials as ZanoTransactionCreationCredentials;
final output = creds.outputs.first;
final address = output.isParsedAddress && (output.extractedAddress?.isNotEmpty ?? false)
? output.extractedAddress!
: output.address;
final stringAmount = output.sendAll ? null : output.cryptoAmount!.replaceAll(',', '.');
//final int? formattedAmount = output.sendAll ? null : output.formattedCryptoAmount;
final fee = calculateEstimatedFee(creds.priority);
// final result = await calls.transfer(
// hWallet,
// TransferParams(
// destinations: [
// Destination(
// amount: amount!,
// address: address,
// assetId: assetId,
// )
// ],
// fee: fee,
// mixin: zanoMixin,
// paymentId: '', // TODO: fixit
// comment: output.note ?? '',
// pushPayer: false,
// hideReceiver: false,
// ));
final intAmount = (double.parse(stringAmount!) * pow(10, 12)).toInt();
// final description = PendingTransactionDescription(
// amount: iAmount, fee: fee, hash: '', pointerAddress: 0);
final transaction = PendingZanoTransaction(fee: fee, intAmount: intAmount,
hWallet: hWallet, address: address, assetId: assetId,
comment: output.note ?? '');
return transaction;
/*final _credentials = credentials as ZanoTransactionCreationCredentials;
final outputs = _credentials.outputs;
final hasMultiDestination = outputs.length > 1;
final assetType =
CryptoCurrency.fromString(_credentials.assetType.toLowerCase());
final balances = getZanoBalance(/*accountIndex: walletAddresses.account!.id*/);
final unlockedBalance = balances[assetType]!.unlockedBalance;
PendingTransactionDescription pendingTransactionDescription;
if (!(syncStatus is SyncedSyncStatus)) {
throw ZanoTransactionCreationException('The wallet is not synced.');
}
if (hasMultiDestination) {
if (outputs.any(
(item) => item.sendAll || (item.formattedCryptoAmount ?? 0) <= 0)) {
throw ZanoTransactionCreationException(
'You do not have enough coins to send this amount.');
}
final int totalAmount = outputs.fold(
0, (acc, value) => acc + (value.formattedCryptoAmount ?? 0));
if (unlockedBalance < totalAmount) {
throw ZanoTransactionCreationException(
'You do not have enough coins to send this amount.');
}
final zanoOutputs = outputs
.map((output) => ZanoOutput(
address: output.address,
amount: output.cryptoAmount!.replaceAll(',', '.')))
.toList();
pendingTransactionDescription =
await transaction_history.createTransactionMultDest(
outputs: zanoOutputs,
priorityRaw: _credentials.priority.serialize());
} else {
final output = outputs.first;
final address = output.isParsedAddress &&
(output.extractedAddress?.isNotEmpty ?? false)
? output.extractedAddress!
: output.address;
final amount =
output.sendAll ? null : output.cryptoAmount!.replaceAll(',', '.');
final int? formattedAmount =
output.sendAll ? null : output.formattedCryptoAmount;
if ((formattedAmount != null && unlockedBalance < formattedAmount) ||
(formattedAmount == null && unlockedBalance <= 0)) {
final formattedBalance = moneroAmountToString(amount: unlockedBalance);
throw ZanoTransactionCreationException(
'You do not have enough unlocked balance. Unlocked: $formattedBalance. Transaction amount: ${output.cryptoAmount}.');
}
pendingTransactionDescription =
await transaction_history.createTransaction(
address: address,
assetType: _credentials.assetType,
amount: amount,
priorityRaw: _credentials.priority.serialize());
}
return PendingZanoTransaction(pendingTransactionDescription, assetType);*/
}
@override
int calculateEstimatedFee(TransactionPriority priority, [int? amount = null]) {
return calls.getCurrentTxFee(priority.raw);
}
@override
Future<void> save() async {
await walletAddresses.updateAddressesInBox();
await backupWalletFiles(name);
await zano_wallet.store(hWallet);
}
@override
Future<void> renameWalletFiles(String newWalletName) async {
final currentWalletPath = await pathForWallet(name: name, type: type);
final currentCacheFile = File(currentWalletPath);
final currentKeysFile = File('$currentWalletPath.keys');
final currentAddressListFile = File('$currentWalletPath.address.txt');
final newWalletPath = await pathForWallet(name: newWalletName, type: type);
// Copies current wallet files into new wallet name's dir and files
if (currentCacheFile.existsSync()) {
await currentCacheFile.copy(newWalletPath);
}
if (currentKeysFile.existsSync()) {
await currentKeysFile.copy('$newWalletPath.keys');
}
if (currentAddressListFile.existsSync()) {
await currentAddressListFile.copy('$newWalletPath.address.txt');
}
// Delete old name's dir and files
await Directory(currentWalletPath).delete(recursive: true);
}
@override
Future<void> changePassword(String password) async {
zano_wallet.setPasswordSync(password);
}
//Future<int> getNodeHeight() async => zano_wallet.getNodeHeight();
Future<bool> isConnected() async => zano_wallet.isConnected();
Future<void> setAsRecovered() async {
walletInfo.isRecovery = false;
await walletInfo.save();
}
@override
Future<void> rescan({required int height}) async {
walletInfo.restoreHeight = height;
walletInfo.isRecovery = true;
zano_wallet.setRefreshFromBlockHeight(height: height);
zano_wallet.rescanBlockchainAsync();
await startSync();
_askForUpdateBalance();
/**walletAddresses.accountList.update();*/
await _askForUpdateTransactionHistory();
await save();
await walletInfo.save();
}
String getTransactionAddress(int accountIndex, int addressIndex) =>
zano_wallet.getAddress(accountIndex: accountIndex, addressIndex: addressIndex);
Future<void> _refreshTransactions() async {
final result = await calls.getRecentTxsAndInfo(hWallet: hWallet, offset: 0, count: 30);
final map = jsonDecode(result);
if (map == null || map["result"] == null || map["result"]["result"] == null) {
return;
}
if (map["result"]["result"]["transfers"] != null)
history = (map["result"]["result"]["transfers"] as List<dynamic>)
.map((e) => History.fromJson(e as Map<String, dynamic>))
.toList();
}
@override
Future<Map<String, ZanoTransactionInfo>> fetchTransactions() async {
//zano_transaction_history.refreshTransactions();
await _refreshTransactions();
return history
.map<ZanoTransactionInfo>((history) => ZanoTransactionInfo.fromHistory(history))
.fold<Map<String, ZanoTransactionInfo>>(<String, ZanoTransactionInfo>{},
(Map<String, ZanoTransactionInfo> acc, ZanoTransactionInfo tx) {
acc[tx.id] = tx;
return acc;
});
// return _getAllTransactions(null)
// .fold<Map<String, ZanoTransactionInfo>>(<String, ZanoTransactionInfo>{},
// (Map<String, ZanoTransactionInfo> acc, ZanoTransactionInfo tx) {
// acc[tx.id] = tx;
// return acc;
// });
}
Future<void> updateTransactions() async {
try {
if (_isTransactionUpdating) {
return;
}
_isTransactionUpdating = true;
final transactions = await fetchTransactions();
transactionHistory.addMany(transactions);
await transactionHistory.save();
_isTransactionUpdating = false;
} catch (e) {
print(e);
_isTransactionUpdating = false;
}
}
// List<ZanoTransactionInfo> _getAllTransactions(dynamic _) =>
// zano_transaction_history
// .getAllTransations()
// .map((row) => ZanoTransactionInfo.fromRow(row))
// .toList();
void _setListeners() {
_listener?.stop();
_listener = zano_wallet.setListeners(_onNewBlock, _onNewTransaction);
}
void _setInitialHeight() {
if (walletInfo.isRecovery) {
return;
}
final currentHeight = zano_wallet.getCurrentHeight(hWallet);
if (currentHeight <= 1) {
final height = _getHeightByDate(walletInfo.date);
///zano_wallet.setRecoveringFromSeed(isRecovery: true);
zano_wallet.setRefreshFromBlockHeight(height: height);
}
}
// int _getHeightDistance(DateTime date) {
// final distance =
// DateTime.now().millisecondsSinceEpoch - date.millisecondsSinceEpoch;
// final daysTmp = (distance / 86400).round();
// final days = daysTmp < 1 ? 1 : daysTmp;
// return days * 1000;
// }
int _getHeightByDate(DateTime date) {
// TODO: !!! 12/10 commented
return 0;
// final nodeHeight = zano_wallet.getNodeHeightSync();
// final heightDistance = _getHeightDistance(date);
// if (nodeHeight <= 0) {
// return 0;
// }
// return nodeHeight - heightDistance;
}
void _askForUpdateBalance() {
print("ask for update balance");
//balance.addAll(getZanoBalance());
}
Future<void> _askForUpdateTransactionHistory() async => await updateTransactions();
void _onNewBlock(int height, int blocksLeft, double ptc) async {
try {
if (walletInfo.isRecovery) {
await _askForUpdateTransactionHistory();
_askForUpdateBalance();
/*walletAddresses.accountList.update();*/
}
if (blocksLeft < 1000) {
await _askForUpdateTransactionHistory();
_askForUpdateBalance();
/*walletAddresses.accountList.update();*/
syncStatus = SyncedSyncStatus();
if (!_hasSyncAfterStartup) {
_hasSyncAfterStartup = true;
await save();
}
if (walletInfo.isRecovery) {
await setAsRecovered();
}
} else {
syncStatus = SyncingSyncStatus(blocksLeft, ptc);
}
} catch (e) {
print(e.toString());
}
}
void _onNewTransaction() async {
try {
await _askForUpdateTransactionHistory();
_askForUpdateBalance();
await Future<void>.delayed(Duration(seconds: 1));
} catch (e) {
print(e.toString());
}
}
final _loadWalletNative =
zanoApi.lookup<NativeFunction<_load_wallet>>('load_wallet').asFunction<_LoadWallet>();
String loadWallet(String path, String password) {
print('load_wallet path $path password $password');
final pathPointer = path.toNativeUtf8();
final passwordPointer = password.toNativeUtf8();
final result = _convertUTF8ToString(
pointer: _loadWalletNative(pathPointer, passwordPointer, 0),
);
print('load_wallet result $result');
return result;
}
String _convertUTF8ToString({required Pointer<Utf8> pointer}) {
final str = pointer.toDartString();
calloc.free(pointer);
return str;
}
}