import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'theme.dart';
import 'providers/providers.dart';
import 'pages/login_page.dart';
import 'pages/routes_page.dart';

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

  await SystemChrome.setPreferredOrientations([
    DeviceOrientation.landscapeLeft,
    DeviceOrientation.landscapeRight,
  ]);

  runApp(
    const ProviderScope(
      child: PlanBLogisticApp(),
    ),
  );
}

class PlanBLogisticApp extends ConsumerWidget {
  const PlanBLogisticApp({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final language = ref.watch(languageProvider);
    final themeMode = ref.watch(themeModeProvider);

    return MaterialApp(
      title: 'Plan B Logistics',
      theme: MaterialTheme(const TextTheme()).light(),
      darkTheme: MaterialTheme(const TextTheme()).dark(),
      themeMode: themeMode,
      locale: Locale(language),
      localizationsDelegates: const [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: const [
        Locale('en', ''),
        Locale('fr', ''),
      ],
      home: const AppHome(),
    );
  }
}

class AppHome extends ConsumerWidget {
  const AppHome({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final isAuthenticatedAsync = ref.watch(isAuthenticatedProvider);

    // Update iOS system UI to match current theme
    final brightness = Theme.of(context).brightness;
    final isDark = brightness == Brightness.dark;

    SystemChrome.setSystemUIOverlayStyle(
      SystemUiOverlayStyle(
        statusBarBrightness: isDark ? Brightness.dark : Brightness.light,
        statusBarIconBrightness: isDark ? Brightness.light : Brightness.dark,
        systemNavigationBarColor: isDark ? Colors.black : Colors.white,
        systemNavigationBarIconBrightness: isDark ? Brightness.light : Brightness.dark,
      ),
    );

    return isAuthenticatedAsync.when(
      data: (isAuthenticated) {
        if (isAuthenticated) {
          return const RoutesPage();
        } else {
          return const LoginPage();
        }
      },
      loading: () => const Scaffold(
        body: Center(
          child: CircularProgressIndicator(),
        ),
      ),
      error: (error, stackTrace) => const LoginPage(),
    );
  }
}
