import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:login_vault_app/auth_service.dart';
import 'package:login_vault_app/theme_provider.dart';
import 'package:login_vault_app/auth_screen.dart';
import 'package:login_vault_app/dashboard_screen.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  final auth = AuthService();
  final theme = ThemeProvider();
  final registered = await auth.isRegistered();
  final email = await auth.getEmail() ?? '';
  runApp(
    MultiProvider(
      providers: [
        Provider<AuthService>.value(value: auth),
        ChangeNotifierProvider<ThemeProvider>.value(value: theme),
      ],
      child: MyApp(registered: registered, email: email),
    ),
  );
}

class MyApp extends StatelessWidget {
  final bool registered;
  final String email;
  const MyApp({super.key, required this.registered, required this.email});

  @override
  Widget build(BuildContext context) {
    final theme = Provider.of<ThemeProvider>(context);
    final auth = Provider.of<AuthService>(context, listen: false);
    return MaterialApp(
      title: 'Login Vault',
      theme: ThemeData(
        useMaterial3: true,
        brightness: Brightness.light,
        colorSchemeSeed: Colors.indigo,
      ),
      darkTheme: ThemeData(
        useMaterial3: true,
        brightness: Brightness.dark,
        colorSchemeSeed: Colors.indigo,
      ),
      themeMode: theme.mode,
      // decide home: if registered AND email known -> Dashboard, else Auth.
      home: (registered && email.isNotEmpty)
          ? DashboardScreen(auth: auth, theme: theme, email: email)
          : AuthScreen(auth: auth),
      debugShowCheckedModeBanner: false,
    );
  }
}