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

import 'package:connectivity_plus/connectivity_plus.dart';
import 'package:device_info_plus/device_info_plus.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:regroup/Utils/dialogs.dart';
import 'package:regroup/firebase_options.dart';
import 'package:regroup/resources/routes/route_name.dart';
import 'package:regroup/resources/routes/routes.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);

  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
  ]).then((value) => runApp(const MyApp()));
}

final streamController = StreamController.broadcast();

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
  List<ConnectivityResult> _connectionStatus = [ConnectivityResult.none];
  final Connectivity _connectivity = Connectivity();
  late StreamSubscription<List<ConnectivityResult>> _connectivitySubscription;

  Future<void> initConnectivity() async {
    late List<ConnectivityResult> result;

    try {
      result = await _connectivity.checkConnectivity();
      print("initconnectivitity");
    } on PlatformException catch (e) {
      print("errrror");
      print(e);
      return;
    }
    if (!mounted) {
      return Future.value(null);
    }

    return _updateConnectionStatus(result);
  }

  Future<void> _updateConnectionStatus(List<ConnectivityResult> result) async {
    if (result.contains(ConnectivityResult.wifi) ||
        result.contains(ConnectivityResult.mobile)) {
      setState(() {
        _connectionStatus = result;
        Get.back(result: true);
      });
    } else {
      setState(() {
        _connectionStatus = result;
        Get.toNamed(RouteName.nointernet);
      });
    }

    print('Connectivity changed: $_connectionStatus');
  }

  Future<void> _getStoragePermission() async {
    DeviceInfoPlugin plugin = DeviceInfoPlugin();
    AndroidDeviceInfo android = await plugin.androidInfo;
    if (android.version.sdkInt < 33) {
      if (await Permission.storage.request().isGranted) {
      } else if (await Permission.storage.request().isPermanentlyDenied) {
        await openAppSettings();
        await utils.showToast("Permission denied.");
      }
    } else {
      if (await Permission.photos.request().isGranted) {
      } else if (await Permission.photos.request().isPermanentlyDenied) {
        await openAppSettings();
        await utils.showToast("Permission denied.");
      } else if (await Permission.photos.request().isDenied) {
        await openAppSettings();
        await utils.showToast("Permission denied.");
      }
    }
  }

  @override
  void initState() {
    initConnectivity();
    WidgetsBinding.instance.addObserver(this);
    _connectivitySubscription =
        _connectivity.onConnectivityChanged.listen(_updateConnectionStatus);

    if (Platform.isAndroid) {
      _getStoragePermission();
    }
    super.initState();
  }

  @override
  void dispose() {
    _connectivitySubscription.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return ScreenUtilInit(
      //useInheritedMediaQuery: true,
      builder: (BuildContext context, Widget? child) => GetMaterialApp(
        title: 'Regroup',
        theme: ThemeData(
          primarySwatch: Colors.grey,
          fontFamily: 'Cambria',
        ),
        debugShowCheckedModeBanner: false,
        // initialRoute: RouteName.individualactivitystep2,

        initialRoute: RouteName.splashScreen,

        getPages: AppRoutes.appRoutes(),
      ),
      designSize: const Size(390, 844),
    );
  }
}