import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:firebase_core/firebase_core.dart';
import 'app/routes/app_pages.dart';
import 'core/services/push_notification_service.dart';
import 'core/services/upload_progress_service.dart';
import 'core/services/home_widget_service.dart';
import 'core/services/shorebird_update_service.dart';
import 'core/services/device_security_service.dart';
import 'app/theme/app_theme.dart';

@pragma('vm:entry-point')
Future<void> _firebaseMessagingBackgroundHandler(RemoteMessage message) async {
  await Firebase.initializeApp();
  debugPrint("Handling a background message: ${message.messageId}");
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  // 1. Initialize Firebase
  await Firebase.initializeApp();

  // 2. Register the background handler BEFORE any listener is attached, so a
  // message arriving during startup is not lost.
  FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);

  // 3. Notifications (permissions, Android channel, tap routing, token refresh)
  await PushNotificationService.initialize();

  // 4. Security check (MUST be first)
  Get.put(DeviceSecurityService(), permanent: true);

  // 5. Register global services
  Get.put(UploadProgressService(), permanent: true);
  Get.put(HomeWidgetService(), permanent: true);
  Get.put(ShorebirdUpdateService(), permanent: true);

  // 6. Re-sync the push token on every launch. It can rotate while the app is
  // closed (reinstall, restore from backup, FCM rotation), and a stale token on
  // the server means the device silently stops receiving notifications.
  PushNotificationService.registerTokenWithServer();

  runApp(const MusadaqApp());
}

class MusadaqApp extends StatelessWidget {
  const MusadaqApp({super.key});

  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      title: 'Musadaq',
      theme: AppTheme.lightTheme,
      darkTheme: AppTheme.darkTheme,
      themeMode: ThemeMode.system,
      initialRoute: AppPages.INITIAL,
      getPages: AppPages.routes,
      debugShowCheckedModeBanner: false,
      locale: const Locale('ar', 'JO'), // Arabic by default
    );
  }
}