cake_wallet/lib/entities/background_tasks.dart
2024-09-10 11:48:00 -07:00

318 lines
11 KiB
Dart

import 'dart:async';
import 'dart:io';
import 'dart:ui';
import 'package:cake_wallet/core/wallet_loading_service.dart';
import 'package:cake_wallet/entities/preferences_key.dart';
import 'package:cake_wallet/store/app_store.dart';
import 'package:cake_wallet/store/settings_store.dart';
import 'package:cake_wallet/utils/device_info.dart';
import 'package:cake_wallet/utils/feature_flag.dart';
import 'package:cake_wallet/view_model/settings/sync_mode.dart';
import 'package:cake_wallet/view_model/wallet_list/wallet_list_item.dart';
import 'package:cake_wallet/view_model/wallet_list/wallet_list_view_model.dart';
import 'package:cw_core/wallet_base.dart';
import 'package:cw_core/wallet_type.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_background_service/flutter_background_service.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:cake_wallet/main.dart';
import 'package:cake_wallet/di.dart';
import 'package:shared_preferences/shared_preferences.dart';
const moneroSyncTaskKey = "com.fotolockr.cakewallet.monero_sync_task";
const mwebSyncTaskKey = "com.fotolockr.cakewallet.mweb_sync_task";
const initialNotificationTitle = 'Cake Background Sync';
const initialNotificationContent = 'On standby - app is in the foreground';
const notificationId = 888;
const notificationChannelId = 'cake_service';
const notificationChannelName = 'CAKE BACKGROUND SERVICE';
const notificationChannelDescription = 'Cake Wallet Background Service';
const DELAY_SECONDS_BEFORE_SYNC_START = 15;
void setNotificationStandby(FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin) async {
flutterLocalNotificationsPlugin.show(
notificationId,
initialNotificationTitle,
initialNotificationContent,
const NotificationDetails(
android: AndroidNotificationDetails(
notificationChannelId,
notificationChannelName,
icon: 'ic_bg_service_small',
ongoing: true,
),
),
);
}
@pragma('vm:entry-point')
Future<void> onStart(ServiceInstance service) async {
print("BACKGROUND SERVICE STARTED!");
bool bgSyncStarted = false;
Timer? _syncTimer;
// commented because the behavior appears to be bugged:
// DartPluginRegistrant.ensureInitialized();
final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
FlutterLocalNotificationsPlugin();
service.on('stopService').listen((event) async {
print("STOPPING BACKGROUND SERVICE!");
_syncTimer?.cancel();
await service.stopSelf();
});
service.on('status').listen((event) async {
print(event);
});
service.on('setForeground').listen((event) async {
bgSyncStarted = false;
_syncTimer?.cancel();
setNotificationStandby(flutterLocalNotificationsPlugin);
});
// we have entered the background, start the sync:
service.on('setBackground').listen((event) async {
if (bgSyncStarted) {
return;
}
bgSyncStarted = true;
await Future.delayed(const Duration(seconds: DELAY_SECONDS_BEFORE_SYNC_START));
print("STARTING SYNC FROM BG!!");
try {
await initializeAppConfigs();
} catch (_) {
// these errors still show up in logs which doesn't really make sense to me
}
print("initialized app configs");
final currentWallet = getIt.get<AppStore>().wallet;
// don't start syncing immediately:
await currentWallet?.stopSync();
final walletLoadingService = getIt.get<WalletLoadingService>();
final typeRaw = getIt.get<SharedPreferences>().getInt(PreferencesKey.currentWalletType);
bool syncAll = true;
List<WalletBase?> syncingWallets = [];
if (syncAll) {
/// get all Monero wallets of the user and sync them
final List<WalletListItem> moneroWallets = getIt
.get<WalletListViewModel>()
.wallets
.where((element) => [WalletType.monero, WalletType.wownero].contains(element.type))
.toList();
for (int i = 0; i < moneroWallets.length; i++) {
final wallet =
await walletLoadingService.load(moneroWallets[i].type, moneroWallets[i].name);
final node = getIt.get<SettingsStore>().getCurrentNode(moneroWallets[i].type);
await wallet.connectToNode(node: node);
await wallet.startSync();
syncingWallets.add(wallet);
}
// get all litecoin wallets and sync them:
final List<WalletListItem> litecoinWallets = getIt
.get<WalletListViewModel>()
.wallets
.where((element) => element.type == WalletType.litecoin)
.toList();
// we only need to sync the first litecoin wallet since they share the same collection of blocks
if (litecoinWallets.isNotEmpty) {
var firstWallet = litecoinWallets.first;
final wallet = await walletLoadingService.load(firstWallet.type, firstWallet.name);
final node = getIt.get<SettingsStore>().getCurrentNode(firstWallet.type);
await wallet.connectToNode(node: node);
await wallet.startSync();
syncingWallets.add(wallet);
}
final List<WalletListItem> bitcoinWallets = getIt
.get<WalletListViewModel>()
.wallets
.where((element) => element.type == WalletType.bitcoin)
.toList();
for (int i = 0; i < bitcoinWallets.length; i++) {
final wallet =
await walletLoadingService.load(bitcoinWallets[i].type, bitcoinWallets[i].name);
final node = getIt.get<SettingsStore>().getCurrentNode(bitcoinWallets[i].type);
await wallet.connectToNode(node: node);
await wallet.startSync();
syncingWallets.add(wallet);
}
} else {
// /// if the user chose to sync only active wallet
// /// if the current wallet is monero; sync it only
// if (typeRaw == WalletType.monero.index || typeRaw == WalletType.wownero.index) {
// final name = getIt.get<SharedPreferences>().getString(PreferencesKey.currentWalletName);
// wallet = await walletLoadingService.load(WalletType.values[typeRaw!], name!);
// final node = getIt.get<SettingsStore>().getCurrentNode(WalletType.values[typeRaw]);
// await wallet.connectToNode(node: node);
// await wallet.startSync();
// syncingWallets.add(wallet);
// }
}
_syncTimer?.cancel();
_syncTimer = Timer.periodic(const Duration(milliseconds: 1500), (timer) {
// final wallet = getIt.get<AppStore>().wallet;
if (syncingWallets.isEmpty) {
return;
}
final wallet = syncingWallets.first!;
final syncProgress = ((wallet.syncStatus.progress() ?? 0) * 100).toStringAsPrecision(5);
// String title = "${wallet!.name} ${syncProgress}% Synced";
String title = "";
for (int i = 0; i < syncingWallets.length; i++) {
final wallet = syncingWallets[i];
final syncProgress = ((wallet!.syncStatus.progress()) * 100).toStringAsPrecision(5);
title += "${wallet.name}-${syncProgress}% ";
}
flutterLocalNotificationsPlugin.show(
notificationId,
title,
'Background sync - ${DateTime.now()}',
const NotificationDetails(
android: AndroidNotificationDetails(
notificationChannelId,
notificationChannelName,
icon: 'ic_bg_service_small',
ongoing: true,
),
),
);
});
});
}
@pragma('vm:entry-point')
Future<bool> onIosBackground(ServiceInstance service) async {
WidgetsFlutterBinding.ensureInitialized();
DartPluginRegistrant.ensureInitialized();
return true;
}
Future<void> initializeService(FlutterBackgroundService bgService) async {
const AndroidNotificationChannel channel = AndroidNotificationChannel(
notificationChannelId,
notificationChannelName,
description: notificationChannelDescription,
importance: Importance.low,
);
final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
FlutterLocalNotificationsPlugin();
if (Platform.isIOS || Platform.isAndroid) {
await flutterLocalNotificationsPlugin.initialize(
const InitializationSettings(
iOS: DarwinInitializationSettings(),
android: AndroidInitializationSettings('ic_bg_service_small'),
),
);
}
await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);
flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()
?.requestNotificationsPermission();
setNotificationStandby(flutterLocalNotificationsPlugin);
// notify the service that we are in the foreground:
bgService.invoke("setForeground");
try {
bool isServiceRunning = await bgService.isRunning();
if (isServiceRunning) {
print("Service is ALREADY running!");
return;
}
} catch (_) {}
await bgService.configure(
androidConfiguration: AndroidConfiguration(
onStart: onStart,
autoStart: true,
isForegroundMode: true,
notificationChannelId: notificationChannelId,
initialNotificationTitle: initialNotificationTitle,
initialNotificationContent: initialNotificationContent,
foregroundServiceNotificationId: notificationId,
foregroundServiceTypes: [AndroidForegroundType.dataSync],
),
iosConfiguration: IosConfiguration(
autoStart: true,
onForeground: onStart,
onBackground: onIosBackground,
),
);
}
class BackgroundTasks {
FlutterBackgroundService bgService = FlutterBackgroundService();
void updateServiceState(bool foreground) {
if (foreground) {
bgService.invoke('stopService');
initializeService(bgService);
} else {
bgService.invoke("setBackground");
}
}
void registerBackgroundService() async {
try {
bool hasMonero = getIt
.get<WalletListViewModel>()
.wallets
.any((element) => element.type == WalletType.monero);
bool hasLitecoin = getIt
.get<WalletListViewModel>()
.wallets
.any((element) => element.type == WalletType.litecoin);
/// if its not android nor ios, or the user has no monero wallets; exit
if (!DeviceInfo.instance.isMobile || (!hasMonero && !hasLitecoin)) {
return;
}
final settingsStore = getIt.get<SettingsStore>();
final SyncMode syncMode = settingsStore.currentSyncMode;
final bool syncAll = settingsStore.currentSyncAll;
if (syncMode.type == SyncType.disabled || !FeatureFlag.isBackgroundSyncEnabled) {
bgService.invoke('stopService');
return;
}
bgService.invoke('stopService');
await initializeService(bgService);
} catch (error, stackTrace) {
print(error);
print(stackTrace);
}
}
}