import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import 'package:f0ckapp/screens/mediagrid_screen.dart';
import 'package:f0ckapp/screens/detailview_screen.dart';
import 'package:f0ckapp/screens/settings_screen.dart';
import 'package:f0ckapp/utils/appversion_util.dart';
import 'package:f0ckapp/providers/theme_provider.dart';
import 'package:f0ckapp/providers/media_provider.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
  await AppVersion.init();

  runApp(ProviderScope(child: F0ckApp()));
}

class F0ckApp extends ConsumerWidget {
  const F0ckApp({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final ThemeData theme = ref.watch(themeNotifierProvider);

    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: theme,
      initialRoute: '/',
      routes: {
        '/': (context) => const MediaGrid(),
        '/settings': (context) => const SettingsPage(),
      },
      onGenerateRoute: (RouteSettings settings) {
        final String? name = settings.name;
        if (name == null) {
          return MaterialPageRoute(
            builder: (_) =>
                const Scaffold(body: Center(child: Text('Ungültiger Link'))),
            settings: settings,
          );
        }

        final RegExp regExp = RegExp(
          r'^(?:/tag/(?<tag>[^/]+))?(?:/(?<mime>image|audio|video))?(?:/(?<itemid>\d+))?$',
        );
        final RegExpMatch? match = regExp.firstMatch(name);

        if (match != null) {
          final String? tag = match.namedGroup('tag');
          final String? mime = match.namedGroup('mime');
          final String? idStr = match.namedGroup('itemid');
          final int? itemId = idStr != null ? int.tryParse(idStr) : null;
          const int preloadOffset = 50;

          if (itemId != null) {
            return MaterialPageRoute(
              builder: (context) => DetailView(initialItemId: itemId),
              settings: settings,
            );
          }

          return MaterialPageRoute(
            builder: (context) => const MediaGrid(),
            settings: settings,
          );
        }

        return MaterialPageRoute(
          builder: (context) =>
              const Scaffold(body: Center(child: Text('Ungültiger Link'))),
          settings: settings,
        );
      },
    );
  }
}