import 'package:autos/core/routing/app_router.dart';
import 'package:autos/presentation/providers/user_provider.dart';
import 'package:autos/presentation/screens/auth/login_screen.dart';
import 'package:autos/presentation/screens/dashboard/dashboard_screen.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

void main() {
  runApp(const ProviderScope(child: MyApp()));
}

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

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

class _MyAppState extends ConsumerState<MyApp> {
  bool _isLoading = true;

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

  Future<void> _restoreSession() async {
    final userNotifier = ref.read(userProvider.notifier);

    // Load user from secure storage
    await userNotifier.loadUserFromStorage();

    // Stop loading after user is restored
    setState(() => _isLoading = false);
  }

  @override
  Widget build(BuildContext context) {
    // Show loading screen until user session is restored
    if (_isLoading) {
      return const MaterialApp(
        debugShowCheckedModeBanner: false,
        home: Scaffold(
          body: Center(child: CircularProgressIndicator()),
        ),
      );
    }

    final userState = ref.watch(userProvider);
    final user = userState.value;

    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: "Autos",
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
      ),

      // Dynamic home based on session
      home: user != null ? const DashboardScreen() : const LoginScreen(),

      onGenerateRoute: AppRouter.generateRoute,
    );
  }
}