import 'package:camera/camera.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:share_location/constants/apis.dart';
import 'package:share_location/screens/calendar_screen.dart';
import 'package:share_location/screens/grant_permission_screen.dart';
import 'package:share_location/screens/login_screen.dart';
import 'package:share_location/screens/main_screen.dart';
import 'package:share_location/screens/timeline_screen.dart';
import 'package:share_location/screens/welcome_screen.dart';
import 'package:share_location/utils/auth_required.dart';
import 'package:supabase_flutter/supabase_flutter.dart';

import 'managers/global_values_manager.dart';
import 'managers/startup_page_manager.dart';
import 'models/memories.dart';

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

  await Supabase.initialize(
    url: SUPABASE_API_URL,
    anonKey: SUPABASE_API_KEY,
    debug: kDebugMode,
  );

  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.portraitDown,
  ]);

  GlobalValuesManager.setCameras(await availableCameras());

  final initialPage = await StartupPageManager.getPage();

  runApp(MyApp(initialPage: initialPage));
}

class MyApp extends StatefulWidget {
  final String initialPage;

  const MyApp({
    Key? key,
    required this.initialPage,
  }) : super(key: key);

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

class _MyAppState extends AuthRequiredState<MyApp> {
  final memories = Memories();

  @override
  void initState() {
    super.initState();

    memories.addListener(() {
      setState(() {

      });
    }, ['isInitializing']);
  }

  @override
  void onAuthenticated(Session session) {
    memories.initialize();
  }

  @override
  Widget build(BuildContext context) {
    if (memories.isInitializing) {
      return SizedBox();
    }

    return ChangeNotifierProvider.value(
      value: memories,
      child: MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData.dark().copyWith(
          textTheme: ThemeData.dark().textTheme.copyWith(
                headline1: const TextStyle(
                  fontSize: 32,
                  fontWeight: FontWeight.w500,
                ),
              ),
          inputDecorationTheme: InputDecorationTheme(
            filled: true,
            helperMaxLines: 10,
            errorMaxLines: 10,
            border: OutlineInputBorder(
              borderRadius: BorderRadius.circular(8),
            ),
          ),
        ),
        routes: {
          WelcomeScreen.ID: (context) => const WelcomeScreen(),
          MainScreen.ID: (context) => const MainScreen(),
          LoginScreen.ID: (context) => const LoginScreen(),
          TimelineScreen.ID: (context) => const TimelineScreen(),
          GrantPermissionScreen.ID: (context) => const GrantPermissionScreen(),
          CalendarScreen.ID: (context) => const CalendarScreen(),
        },
        initialRoute: widget.initialPage,
      ),
    );
  }
}