import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:hiddingsel_app/constants/constant.dart';

class ExternalNotificationConnector {

  static void initialize() async {
    WidgetsFlutterBinding.ensureInitialized();
    await Firebase.initializeApp();
    FirebaseMessaging.onBackgroundMessage(_backgroundMessageHandler);
    FirebaseMessaging.onMessageOpenedApp.listen(_messageOpenedAppHandler);
  }

  static void _messageOpenedAppHandler(RemoteMessage event) {
    // Passende stelle öffnen
  }

  static void subscribe(element) {
    FirebaseMessaging.instance.subscribeToTopic(SystemStrings.fcmPre + element.id);
  }

  static void unsubscribe(element) {
    FirebaseMessaging.instance.unsubscribeFromTopic(SystemStrings.fcmPre + element.id);
  }
}

Future<void> _backgroundMessageHandler(RemoteMessage message) async {
  // Vielleicht Snackbar?
}