import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flux/blocs/session/session_bloc.dart';
import 'package:flux/core/theme/theme.dart';
import 'package:flux/core/theme/bloc/theme_bloc.dart';
import 'package:flux/features/auth/ui/auth_screen.dart';
import 'package:flux/features/company/ui/create_company_screen.dart';
import 'package:flux/features/store/ui/create_store_screen.dart';
import 'package:flux/ui/home_screen.dart';
import 'package:flux/ui/settings/settings.dart';
import 'package:get_it/get_it.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:supabase_flutter/supabase_flutter.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  final GetIt getIt = GetIt.instance;
  getIt.registerSingleton<SharedPreferences>(
    await SharedPreferences.getInstance(),
  );
  getIt.registerSingleton<AppSettings>(AppSettings());
  await Supabase.initialize(
    url: 'https://pvqpjloswwvtfoxbkfbh.supabase.co',
    anonKey:
        'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InB2cXBqbG9zd3d2dGZveGJrZmJoIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NzQ5MjkyNjgsImV4cCI6MjA5MDUwNTI2OH0.-7nitlX1pzPGscGawlIF0vhwuD_w209FUU0PxDNGm0Y',
  );
  getIt.registerSingleton<SupabaseClient>(Supabase.instance.client);

  runApp(
    MultiBlocProvider(
      providers: [
        BlocProvider(create: (context) => ThemeBloc()..add(LoadThemeEvent())),
        BlocProvider<SessionBloc>(
          create: (context) => SessionBloc()..add(AppStarted()),
        ),
      ],
      child: const FluxApp(),
    ),
  );
}

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

  @override
  Widget build(BuildContext context) {
    return BlocBuilder<ThemeBloc, ThemeState>(
      builder: (context, state) {
        return MaterialApp(
          title: 'FLUX Gestionale',
          debugShowCheckedModeBanner: false,
          theme: fluxLightTheme,
          darkTheme: fluxDarkTheme,
          themeMode: state.currentTheme.themeMode, // Applica il tema FLUX
          home: const AuthGuard(),
        );
      },
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return BlocBuilder<SessionBloc, SessionState>(
      builder: (context, state) {
        switch (state.status) {
          case SessionStatus.unauthenticated:
            return const AuthScreen();

          case SessionStatus.authenticatedNoCompany:
            // Pagina forzata per inserimento P.IVA e Ragione Sociale
            return const CreateCompanyScreen();

          case SessionStatus.authenticatedNoStore:
            // Pagina forzata per creare il primo punto vendita
            return const CreateStoreScreen();

          case SessionStatus.ready:
            return const HomeScreen(); // Entra direttamente nel negozio salvato

          default:
            return const Scaffold(
              body: Center(child: CircularProgressIndicator()),
            );
        }
      },
    );
  }
}