Merge pull request #147 from cake-tech/notification

Notification

lib/bitcoin/bitcoin_mnemonic_is_incorrect_exception.dart

@@ -1,5 +1,5 @@
 class BitcoinMnemonicIsIncorrectException implements Exception {
   @override
   String toString() =>
-      'Bitcoin mnemonic has incorrect format. Mnemonic should contain 24 words separated by space.';
+      'Bitcoin mnemonic has incorrect format. Mnemonic should contain 12 or 24 words separated by space.';
 }

lib/bitcoin/electrum_transaction_history.dart

@@ -35,7 +35,7 @@ abstract class ElectrumTransactionHistoryBase
 
   @override
   void addMany(Map<String, ElectrumTransactionInfo> transactions) =>
-      this.transactions.addAll(transactions);
+      transactions.forEach((_, tx) => _updateOrInsert(tx));
 
   @override
   Future<void> save() async {

lib/di.dart

@@ -113,6 +113,7 @@ import 'package:cake_wallet/store/templates/exchange_template_store.dart';
 import 'package:cake_wallet/entities/template.dart';
 import 'package:cake_wallet/exchange/exchange_template.dart';
 import 'package:cake_wallet/.secrets.g.dart' as secrets;
+import 'package:cake_wallet/entities/push_notifications_service.dart';
 
 final getIt = GetIt.instance;
 
@@ -232,6 +233,9 @@ Future setup(
       settingsStore: getIt.get<SettingsStore>(),
       fiatConvertationStore: getIt.get<FiatConversionStore>()));
 
+
+  getIt.registerFactory(() => PushNotificationsService());
+
   getIt.registerFactory(() => DashboardViewModel(
       balanceViewModel: getIt.get<BalanceViewModel>(),
       appStore: getIt.get<AppStore>(),
@@ -241,7 +245,8 @@ Future setup(
       settingsStore: settingsStore,
       ordersSource: _ordersSource,
       ordersStore: getIt.get<OrdersStore>(),
-      wyreViewModel: getIt.get<WyreViewModel>()));
+      wyreViewModel: getIt.get<WyreViewModel>(),
+      pushNotificationsService: getIt.get<PushNotificationsService>()));
 
   getIt.registerFactory<AuthService>(() => AuthService(
       secureStorage: getIt.get<FlutterSecureStorage>(),

lib/entities/push_notifications_service.dart

@@ -0,0 +1,45 @@
+import 'dart:io';
+import 'package:cake_wallet/main.dart';
+import 'package:cake_wallet/utils/show_bar.dart';
+import 'package:firebase_messaging/firebase_messaging.dart';
+
+class PushNotificationsService {
+  PushNotificationsService._();
+
+  factory PushNotificationsService() => _instance;
+
+  static final PushNotificationsService _instance = PushNotificationsService._();
+  static Future<dynamic> _onBackgroundMessage(Map<String, dynamic> message) async  {}
+  final _firebaseMessaging = FirebaseMessaging();
+  bool _initialized = false;
+
+  Future<void> init() async {
+    if (_initialized) {
+      return;
+    }
+
+    _firebaseMessaging.requestNotificationPermissions();
+    _firebaseMessaging.configure(
+      onMessage: (message) async {
+        Map<dynamic, dynamic> alert = {};
+        String msg = '';
+        String title = '';
+
+        if (Platform.isIOS) {
+          alert = message['aps']['alert'] as Map<dynamic, dynamic> ?? <dynamic, dynamic>{};
+          msg = alert['body'] as String ?? '';
+          title = alert['title'] as String ?? '';
+        }
+
+        if (Platform.isAndroid) {
+          msg = message['notification']['body'] as String ?? '';
+          title = message['notification']['title'] as String ?? '';
+        }
+
+        await showBar<void>(navigatorKey.currentContext, msg, titleText: title, duration: null);
+      },
+      onBackgroundMessage: _onBackgroundMessage);
+
+    _initialized = true;
+  }
+}

lib/entities/wallet_type.dart

@@ -71,7 +71,7 @@ String walletTypeToDisplayName(WalletType type) {
     case WalletType.bitcoin:
       return 'Bitcoin (Electrum)';
     case WalletType.litecoin:
-      return 'Litecoin';
+      return 'Litecoin (Electrum)';
     default:
       return '';
   }

lib/src/screens/dashboard/widgets/balance_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:cake_wallet/view_model/dashboard/dashboard_view_model.dart';
+import 'package:flutter/scheduler.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:auto_size_text/auto_size_text.dart';
 

lib/utils/show_bar.dart

@@ -2,8 +2,11 @@ import 'package:flushbar/flushbar.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
-Future<T> showBar<T>(BuildContext context, String text,
-    {bool isDark = false, Duration duration = const Duration(seconds: 1), bool isDismissible = true}) {
+Future<T> showBar<T>(BuildContext context, String messageText,
+    {bool isDark = false,
+      Duration duration = const Duration(seconds: 1),
+      bool isDismissible = true,
+      String titleText}) {
   final bar = Flushbar<T>(
       boxShadows: [
         BoxShadow(
@@ -14,9 +17,14 @@ Future<T> showBar<T>(BuildContext context, String text,
       backgroundColor: isDark ? Colors.black : Colors.white,
       borderRadius: 35,
       margin: EdgeInsets.all(50),
-      messageText: Text(text,
+      titleText: titleText != null 
+        ? Text(titleText,
+            textAlign: TextAlign.center,
+            style: TextStyle(color: isDark ? Colors.white : Colors.black, fontWeight: FontWeight.bold, fontSize: 24.0))
+        : null,
+      messageText: Text(messageText,
           textAlign: TextAlign.center,
-          style: TextStyle(color: isDark ? Colors.white : Colors.black)),
+          style: TextStyle(color: isDark ? Colors.white : Colors.black, fontSize: 16)),
       duration: duration,
       isDismissible: isDismissible,
       flushbarPosition: FlushbarPosition.TOP,

lib/view_model/dashboard/dashboard_view_model.dart

@@ -1,6 +1,7 @@
 import 'package:cake_wallet/core/transaction_history.dart';
 import 'package:cake_wallet/entities/balance.dart';
 import 'package:cake_wallet/entities/order.dart';
+import 'package:cake_wallet/entities/push_notifications_service.dart';
 import 'package:cake_wallet/monero/account.dart';
 import 'package:cake_wallet/monero/monero_balance.dart';
 import 'package:cake_wallet/monero/monero_transaction_info.dart';
@@ -44,7 +45,9 @@ abstract class DashboardViewModelBase with Store {
       this.settingsStore,
       this.ordersSource,
       this.ordersStore,
-      this.wyreViewModel}) {
+      this.wyreViewModel,
+      PushNotificationsService pushNotificationsService}) {
+    _pushNotificationsService = pushNotificationsService;
     filterItems = {
       S.current.transactions: [
         FilterItem(
@@ -133,6 +136,8 @@ abstract class DashboardViewModelBase with Store {
 
       return true;
     });
+
+    Future.delayed(Duration(seconds: 2), () => _pushNotificationsService.init());
   }
 
   @observable
@@ -227,18 +232,20 @@ abstract class DashboardViewModelBase with Store {
 
   bool get isBuyEnabled => settingsStore.isBitcoinBuyEnabled;
 
+  PushNotificationsService _pushNotificationsService;
+
   ReactionDisposer _onMoneroAccountChangeReaction;
 
   ReactionDisposer _onMoneroBalanceChangeReaction;
 
+  @observable
+  bool isOutdatedElectrumWallet;
+
   Future<void> reconnect() async {
     final node = appStore.settingsStore.getCurrentNode(wallet.type);
     await wallet.connectToNode(node: node);
   }
 
-  @observable
-  bool isOutdatedElectrumWallet;
-
   @action
   void _onWalletChange(
       WalletBase<Balance, TransactionHistoryBase<TransactionInfo>,