import 'dart:async';
import 'dart:io';
import 'dart:ui';

import 'package:absensi_karyawan/src/services/notification_services.dart';
// import 'package:background_location/background_location.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_background_service/flutter_background_service.dart';
import 'package:flutter_background_service_android/flutter_background_service_android.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:logger/logger.dart';
import 'package:provider/provider.dart';

import 'src/config/routes.dart';
import 'src/config/theme.dart';
import 'src/provider/login_provider.dart';
import 'src/services/storage_service.dart';

import 'package:flutter_native_timezone/flutter_native_timezone.dart';
// import 'package:socket_io_client/socket_io_client.dart';
import 'package:timezone/data/latest_all.dart' as tz;
import 'package:timezone/timezone.dart' as tz;

final dev = Logger();
Future main() async {
  WidgetsFlutterBinding.ensureInitialized();
  // await GetStorage.init();
  // await _startBackgroundLocation();
  await dotenv.load(fileName: ".env");
  StorageService storage = StorageService();
  await storage.init();

  await _configureLocalTimeZone();
  await NotificationServices.init();
  // await initializeService();

  runApp(const MyApp());
}

Future<void> initializeService() async {
  final service = FlutterBackgroundService();

  /// OPTIONAL, using custom notification channel id
  const AndroidNotificationChannel channel = AndroidNotificationChannel(
    'my_foreground', // id
    'MY FOREGROUND SERVICE', // title
    description:
        'This channel is used for important notifications.', // description
    importance: Importance.low, // importance must be at low or higher level
  );

  final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      FlutterLocalNotificationsPlugin();

  if (Platform.isIOS) {
    await flutterLocalNotificationsPlugin.initialize(
      const InitializationSettings(
        iOS: IOSInitializationSettings(),
      ),
    );
  }

  await flutterLocalNotificationsPlugin
      .resolvePlatformSpecificImplementation<
          AndroidFlutterLocalNotificationsPlugin>()
      ?.createNotificationChannel(channel);

  await service.configure(
    androidConfiguration: AndroidConfiguration(
      // this will be executed when app is in foreground or background in separated isolate
      onStart: onStart,

      // auto start service
      autoStart: true,
      isForegroundMode: true,

      // notificationChannelId: 'my_foreground',
      // initialNotificationTitle: 'AWESOME SERVICE',
      // initialNotificationContent: 'Initializing',
      // foregroundServiceNotificationId: 888,
    ),
    iosConfiguration: IosConfiguration(
      // auto start service
      autoStart: true,

      // this will be executed when app is in foreground in separated isolate
      onForeground: onStart,

      // you have to enable background fetch capability on xcode project
      onBackground: onIosBackground,
    ),
  );

  service.startService();
}

// to ensure this is executed
// run app from xcode, then from xcode menu, select Simulate Background Fetch

@pragma('vm:entry-point')
Future<bool> onIosBackground(ServiceInstance service) async {
  WidgetsFlutterBinding.ensureInitialized();
  DartPluginRegistrant.ensureInitialized();

  // SharedPreferences preferences = await SharedPreferences.getInstance();
  // await preferences.reload();
  // final log = preferences.getStringList('log') ?? <String>[];
  // log.add(DateTime.now().toIso8601String());
  // await preferences.setStringList('log', log);

  return true;
}

@pragma('vm:entry-point')
void onStart(ServiceInstance service) async {
  // Only available for flutter 3.0.0 and later
  DartPluginRegistrant.ensureInitialized();

  // For flutter prior to version 3.0.0
  // We have to register the plugin manually

  // SharedPreferences preferences = await SharedPreferences.getInstance();
  // await preferences.setString("hello", "world");

  /// OPTIONAL when use custom notification
  final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      FlutterLocalNotificationsPlugin();

  if (service is AndroidServiceInstance) {
    service.on('setAsForeground').listen((event) {
      service.setAsForegroundService();
    });

    service.on('setAsBackground').listen((event) {
      service.setAsBackgroundService();
    });
  }

  service.on('stopService').listen((event) {
    service.stopSelf();
  });

  // bring to foreground
  Timer.periodic(const Duration(seconds: 5), (timer) async {
    // const platform = MethodChannel('example.com/channel');
    // int random;
    // try {
    //   random = await platform.invokeMethod('getRandomNumber');
    // } on PlatformException catch (e) {
    //   random = 0;
    // }
    // BackgroundLocation().getCurrentLocation().then((location) {
    //   dev.i('Location: ${location.latitude}, ${location.longitude}');
    //   // NotificationServices.showNotification(
    //   //   id: 1,
    //   //   title: 'Percobaan 2',
    //   //   body: 'Location: ${location.latitude}, ${location.longitude}',
    //   //   payload: 'Percobaan 2',
    //   // );
    // });
    // if (service is AndroidServiceInstance) {
    //   // if (await service.isForegroundService()) {
    //   /// OPTIONAL for use custom notification
    //   /// the notification id must be equals with AndroidConfiguration when you call configure() method.
    //   flutterLocalNotificationsPlugin.show(
    //     888,
    //     'COOL SERVICE',
    //     'Awesome ${DateTime.now()}',
    //     const NotificationDetails(
    //       android: AndroidNotificationDetails(
    //         'my_foreground',
    //         'MY FOREGROUND SERVICE',
    //         icon: 'ic_bg_service_small',
    //         ongoing: true,
    //       ),
    //     ),
    //   );

    //   // if you don't using custom notification, uncomment this
    //   // service.setForegroundNotificationInfo(
    //   //   title: "My App Service",
    //   //   content: "Updated at ${DateTime.now()}",
    //   // );
    //   // }
    // }

    /// you can see this log in logcat
    dev.i('FLUTTER BACKGROUND SERVICE: ${DateTime.now()}');

    // test using external plugin
    // final deviceInfo = DeviceInfoPlugin();
    String? device;
    if (Platform.isAndroid) {
      // final androidInfo = await deviceInfo.androidInfo;
      // device = androidInfo.model;
    }

    if (Platform.isIOS) {
      // final iosInfo = await deviceInfo.iosInfo;
      // device = iosInfo.model;
    }

    service.invoke(
      'update',
      {
        "current_date": DateTime.now().toIso8601String(),
        "device": device,
      },
    );
  });
}

Future<void> _startBackgroundLocation() async {
  // await BackgroundLocation.startLocationService(distanceFilter: 20);
}

Future<void> _configureLocalTimeZone() async {
  if (kIsWeb || Platform.isLinux) {
    return;
  }
  tz.initializeTimeZones();
  try {
    final String timeZoneName = await FlutterNativeTimezone.getLocalTimezone();
    tz.setLocalLocation(tz.getLocation(timeZoneName));
  } catch (e) {
    tz.setLocalLocation(tz.getLocation('Asia/Kuala_Lumpur'));
  }

  // final String timeZoneName = await FlutterNativeTimezone.getLocalTimezone();
  // tz.setLocalLocation(tz.getLocation(timeZoneName));
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    SystemChrome.setPreferredOrientations([
      DeviceOrientation.portraitUp,
      DeviceOrientation.portraitDown,
    ]);

    SystemChrome.setSystemUIOverlayStyle(
      const SystemUiOverlayStyle(
        systemNavigationBarColor: ThemeInfo.primary,
        statusBarColor: ThemeInfo.primary,
      ),
    );
    return MultiProvider(
      providers: [
        ChangeNotifierProvider<LoginProvider>(
          create: (_) => LoginProvider(),
        ),
      ],
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        title: 'Absensi Karyawan',
        initialRoute: 'splash',
        // initialRoute:'prueba',
        theme: ThemeInfo.getTheme(),
        routes: RoutesApp.getRoutes(),
        builder: EasyLoading.init(),
      ),
    );
  }
}