import 'package:fforte/enums/databases.dart';
import 'package:fforte/screens/excursion/excursion_main.dart';
import 'package:fforte/screens/addCam/add_cam_main.dart';
import 'package:fforte/screens/intro_screen.dart';
import 'package:fforte/screens/settings.dart';
import 'package:fforte/screens/viewEntries/view_cams.dart';
import 'package:flutter/material.dart';
import 'package:flex_color_scheme/flex_color_scheme.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'l10n/app_localizations.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'home.dart';
import 'l10n/l10n.dart';

// * Main entry point of the LUPUS app
// * Configures the app's:
// * - Theme and appearance
// * - Localization
// * - Navigation routes
// * - Initial settings

/// Initialize the app and configure default settings
void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  // Initialize SharedPreferences for app settings
  SharedPreferences prefs = await SharedPreferences.getInstance();
  
  // Check if this is the first app launch
  bool isFirstLaunch = prefs.getBool('isFirstLaunch') ?? true;
  
  // Set default control periods if not already configured
  if (prefs.getString("kTage1")?.isEmpty ?? true) await prefs.setString('kTage1', "28");
  if (prefs.getString("kTage2")?.isEmpty ?? true) await prefs.setString('kTage2', "48");
  
  // Commented out API addresses for testing purposes
  if (prefs.getString("fotofallenApiAddress")?.isEmpty ?? true) await prefs.setString('fotofallenApiAddress', 'https://data.dbb-wolf.de/app24.php');
  if (prefs.getString("exkursionenApiAddress")?.isEmpty ?? true) await prefs.setString('exkursionenApiAddress', 'https://data.dbb-wolf.de/api_exkursion.php');
  
  runApp(MyApp(isFirstLaunch: isFirstLaunch));
}

/// Main app widget that configures the app's theme and routing
class MyApp extends StatelessWidget {
  final bool isFirstLaunch;
  const MyApp({super.key, required this.isFirstLaunch});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'LUPUS',
      // Configure light theme with gold color scheme
      theme: FlexThemeData.light(scheme: FlexScheme.gold, useMaterial3: true),
      // Configure dark theme with green M3 color scheme
      darkTheme: FlexThemeData.dark(scheme: FlexScheme.greenM3, useMaterial3: true),
      themeMode: ThemeMode.system,  // Use system theme preference
      
      // Show intro screen on first launch, otherwise go to home
      initialRoute: isFirstLaunch ? '/introScreen' : '/home',
      
      // Configure localization support
      supportedLocales: L10n.all,
      localizationsDelegates: const [
        AppLocalizations.delegate,
        GlobalMaterialLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
      ],
      
      // Define app navigation routes
      routes: {
        '/home': (context) => const HomePage(),
        '/addCamMain': (context) => const AddCamMain(),
        '/viewCams': (context) => const ViewEntries(dbType: DatabasesEnum.place,),
        '/viewExcursionen': (context) => const ViewEntries(dbType: DatabasesEnum.excursion,),
        '/introScreen': (context) => const IntroScreen(),
        '/settings': (context) => const Settings(),
        '/excursion': (context) => const ExcursionMain(),
      },
    );
  }
}