mirror of
https://github.com/cake-tech/cake_wallet.git
synced 2025-01-15 07:14:59 +00:00
107 lines
3.6 KiB
Dart
107 lines
3.6 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'package:cw_core/crypto_currency.dart';
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import 'package:cw_zano/api/calls.dart' as calls;
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import 'package:cw_zano/api/model/get_wallet_info_result.dart';
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import 'package:cw_zano/api/model/get_wallet_status_result.dart';
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import 'package:cw_zano/api/model/zano_wallet_keys.dart';
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import 'package:cw_zano/zano_balance.dart';
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import 'package:cw_zano/zano_wallet.dart';
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import 'package:flutter/foundation.dart';
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import 'package:mobx/mobx.dart' as mobx;
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int getCurrentHeight(int hWallet) {
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final json = calls.getWalletStatus(hWallet);
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final walletStatus = GetWalletStatusResult.fromJson(jsonDecode(json) as Map<String, dynamic>);
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return walletStatus.currentWalletHeight;
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}
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int getNodeHeightSync(int hWallet) {
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final json = calls.getWalletStatus(hWallet);
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final walletStatus = GetWalletStatusResult.fromJson(jsonDecode(json) as Map<String, dynamic>);
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return walletStatus.currentDaemonHeight;
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}
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class SyncListener {
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SyncListener(this.onNewBlock, this.onNewTransaction)
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: _cachedBlockchainHeight = 0,
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_lastKnownBlockHeight = 0,
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_initialSyncHeight = 0;
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void Function(int, int, double) onNewBlock;
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void Function() onNewTransaction;
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Timer? _updateSyncInfoTimer;
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int _cachedBlockchainHeight;
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int _lastKnownBlockHeight;
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int _initialSyncHeight;
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Future<int> getNodeHeightOrUpdate(int hWallet, int baseHeight) async {
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if (_cachedBlockchainHeight < baseHeight || _cachedBlockchainHeight == 0) {
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_cachedBlockchainHeight = await compute<int, int>(getNodeHeightSync, hWallet);
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}
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return _cachedBlockchainHeight;
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}
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void start(ZanoWalletBase wallet, int hWallet) async {
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_cachedBlockchainHeight = 0;
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_lastKnownBlockHeight = 0;
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_initialSyncHeight = 0;
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_updateSyncInfoTimer ??= Timer.periodic(Duration(milliseconds: 1200), (_) async {
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/**if (isNewTransactionExist()) {
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onNewTransaction?.call();
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}*/
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var syncHeight = getCurrentHeight(hWallet);
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final json = calls.getWalletInfo(hWallet);
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final result = GetWalletInfoResult.fromJson(jsonDecode(json) as Map<String, dynamic>);
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wallet.seed = result.wiExtended.seed;
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wallet.keys = ZanoWalletKeys(
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privateSpendKey: result.wiExtended.spendPrivateKey,
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privateViewKey: result.wiExtended.viewPrivateKey,
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publicSpendKey: result.wiExtended.spendPublicKey,
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publicViewKey: result.wiExtended.viewPublicKey,
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);
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final balance = result.wi.balances.first;
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wallet.assetId = balance.assetInfo.assetId;
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wallet.balance = mobx.ObservableMap.of(
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{CryptoCurrency.zano: ZanoBalance(total: balance.total, unlocked: balance.unlocked)});
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if (_initialSyncHeight <= 0) {
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_initialSyncHeight = syncHeight;
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}
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final bchHeight = await getNodeHeightOrUpdate(hWallet, syncHeight);
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if (_lastKnownBlockHeight == syncHeight || syncHeight == null) {
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return;
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}
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_lastKnownBlockHeight = syncHeight;
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final track = bchHeight - _initialSyncHeight;
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final diff = track - (bchHeight - syncHeight);
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final ptc = diff <= 0 ? 0.0 : diff / track;
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final left = bchHeight - syncHeight;
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if (syncHeight < 0 || left < 0) {
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return;
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}
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// 1. Actual new height; 2. Blocks left to finish; 3. Progress in percents;
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onNewBlock?.call(syncHeight, left, ptc);
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});
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}
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void stop() => _updateSyncInfoTimer?.cancel();
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}
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SyncListener setListeners(
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void Function(int, int, double) onNewBlock, void Function() onNewTransaction) {
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final listener = SyncListener(onNewBlock, onNewTransaction);
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/**setListenerNative();*/
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return listener;
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}
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