import 'dart:ui';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_acrylic/flutter_acrylic.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:hive_flutter/hive_flutter.dart';
import 'package:video_player_win/video_player_win_plugin.dart';
import 'package:window_manager/window_manager.dart';

import 'app.dart';
import 'servisler/job_orkestratoru.dart';

/// Son yakalanan ölümcül hata (UI boş kalırsa overlay'de gösterilir)
final ValueNotifier<FlutterErrorDetails?> sonHataDetay = ValueNotifier(null);

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();

  // Tüm Flutter ve async hatalarını yakala — siyah ekran/sessiz çökme yerine
  // gerçek hatayı ekrana bastır.
  FlutterError.onError = (details) {
    FlutterError.presentError(details);
    sonHataDetay.value = details;
  };
  PlatformDispatcher.instance.onError = (error, stack) {
    debugPrint('PlatformDispatcher hatası: $error\n$stack');
    sonHataDetay.value = FlutterErrorDetails(
      exception: error,
      stack: stack,
      library: 'PlatformDispatcher',
    );
    return true;
  };

  // ErrorWidget yerine kendimizinki — render hatası olduğunda kırmızı yama
  // değil okunaklı bir mesaj göster.
  ErrorWidget.builder = (details) {
    sonHataDetay.value = details;
    return Material(
      color: const Color(0xFF1a0000),
      child: Padding(
        padding: const EdgeInsets.all(24),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const Text(
              'Widget render hatası',
              style: TextStyle(
                  color: Colors.redAccent,
                  fontSize: 18,
                  fontWeight: FontWeight.bold),
            ),
            const SizedBox(height: 12),
            Expanded(
              child: SingleChildScrollView(
                child: SelectableText(
                  '${details.exception}\n\n${details.stack}',
                  style: const TextStyle(
                      color: Colors.white70,
                      fontFamily: 'monospace',
                      fontSize: 11),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  };

  String? baslatmaHatasi;

  try {
    await Hive.initFlutter();
  } catch (e, st) {
    baslatmaHatasi = 'Hive init: $e\n$st';
    debugPrint(baslatmaHatasi);
  }

  try {
    await Window.initialize();
    await windowManager.ensureInitialized();
    WindowsVideoPlayer.registerWith();
    await windowManager.waitUntilReadyToShow(
      const WindowOptions(
        size: Size(1480, 920),
        minimumSize: Size(1100, 720),
        center: true,
        backgroundColor: Colors.transparent,
        titleBarStyle: TitleBarStyle.normal,
        title: 'FikoYT Video Stüdyo',
      ),
      () async {
        try {
          await Window.setEffect(effect: WindowEffect.acrylic, dark: true);
        } catch (_) {}
        await windowManager.show();
        await windowManager.focus();
      },
    );
  } catch (e, st) {
    baslatmaHatasi ??= 'Pencere init: $e\n$st';
    debugPrint('Pencere init: $e\n$st');
  }

  try {
    await JobOrkestratoru.ornek.baslat();
  } catch (e, st) {
    baslatmaHatasi ??= 'Job orchestrator: $e\n$st';
    debugPrint('Job orchestrator hatası: $e\n$st');
  }

  // Render pipeline'ın test ekranı (sadece başlatma hatası varsa görünür)
  if (baslatmaHatasi != null) {
    runApp(MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        backgroundColor: Colors.green,
        body: Padding(
          padding: const EdgeInsets.all(40),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              const Text(
                'FİKOYT TEST EKRANI',
                style: TextStyle(
                    color: Colors.white,
                    fontSize: 32,
                    fontWeight: FontWeight.bold),
              ),
              const SizedBox(height: 16),
              if (baslatmaHatasi != null)
                Text(baslatmaHatasi,
                    style: const TextStyle(color: Colors.white, fontSize: 14))
              else
                const Text(
                    'Bu yeşil ekranı görüyorsan render OK.\nVideoStudyoApp/Router/Tema kısmında sorun var.',
                    style: TextStyle(color: Colors.white, fontSize: 16)),
            ],
          ),
        ),
      ),
    ));
    return;
  }

  runApp(const ProviderScope(child: VideoStudyoApp()));
}

class _BaslatmaHataEkrani extends StatelessWidget {
  final String mesaj;
  const _BaslatmaHataEkrani({required this.mesaj});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        backgroundColor: const Color(0xFF0F1115),
        body: Padding(
          padding: const EdgeInsets.all(24),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              const Text(
                'Başlatma hatası',
                style: TextStyle(
                    color: Colors.redAccent,
                    fontSize: 20,
                    fontWeight: FontWeight.bold),
              ),
              const SizedBox(height: 12),
              Expanded(
                child: SingleChildScrollView(
                  child: SelectableText(
                    mesaj,
                    style: const TextStyle(
                        color: Colors.white70,
                        fontFamily: 'monospace',
                        fontSize: 12),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}