import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import 'durum/tema_durumu.dart';
import 'main.dart' show sonHataDetay;
import 'servisler/job_orkestratoru.dart';
import 'servisler/ltx/ltx_baglanti_servisi.dart';
import 'ui/studyo/gorunum_studio.dart';
import 'yonlendirici.dart';

class VideoStudyoApp extends ConsumerStatefulWidget {
  const VideoStudyoApp({super.key});

  @override
  ConsumerState<VideoStudyoApp> createState() => _VideoStudyoAppState();
}

class _VideoStudyoAppState extends ConsumerState<VideoStudyoApp> {
  @override
  void initState() {
    super.initState();
    // Job orchestrator'a anlık LTX state okuma yetisi ver
    JobOrkestratoru.ornek.ltxKaynagiAyarla(
      () => ref.read(ltxBaglantiProvider),
    );
    // İzleme modu durumunu okuyabilmesi için provider erişimi ver
    JobOrkestratoru.ornek.izlemeModuKaynagiAyarla(
      () => ref.read(izlemeModuProvider),
    );
    // Uygulama başlar başlamaz LTX bağlantısını dene (arkaplanda)
    WidgetsBinding.instance.addPostFrameCallback((_) {
      ref.read(ltxBaglantiProvider.notifier).kesfet();
    });
  }

  @override
  Widget build(BuildContext context) {
    ThemeData? temaData;
    String? temaHata;
    try {
      final tema = ref.watch(temaProvider);
      temaData = tema.tema;
    } catch (e, st) {
      temaHata = '$e\n$st';
      debugPrint('Tema build hatası: $temaHata');
    }
    return MaterialApp.router(
      title: 'FikoYT Video Stüdyo',
      debugShowCheckedModeBanner: false,
      theme: temaData ?? ThemeData.dark(useMaterial3: true),
      // Türkçe locale + Material/Cupertino/Widgets locale destekleri
      locale: const Locale('tr', 'TR'),
      localizationsDelegates: const [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: const [
        Locale('tr', 'TR'),
        Locale('en', 'US'),
      ],
      routerConfig: yonlendirici,
      builder: (context, child) {
        if (temaHata != null) {
          return Material(
            color: const Color(0xFF0F1115),
            child: Padding(
              padding: const EdgeInsets.all(24),
              child: SelectableText(
                'Tema hatası:\n\n$temaHata',
                style: const TextStyle(
                    color: Colors.redAccent,
                    fontFamily: 'monospace',
                    fontSize: 12),
              ),
            ),
          );
        }
        // Hata overlay'i — siyah/boş kalmasın diye yakalanan exception'ı göster
        return Stack(
          children: [
            child ?? const SizedBox.shrink(),
            const Positioned(
              right: 12,
              bottom: 36,
              width: 480,
              child: _HataOverlay(),
            ),
          ],
        );
      },
    );
  }
}

/// Yakalanan FlutterError'ı göstermek için sağ alt köşede kayan kart.
class _HataOverlay extends StatelessWidget {
  const _HataOverlay();

  @override
  Widget build(BuildContext context) {
    return ValueListenableBuilder<FlutterErrorDetails?>(
      valueListenable: sonHataDetay,
      builder: (ctx, detay, _) {
        if (detay == null) return const SizedBox.shrink();
        return Material(
          elevation: 12,
          color: const Color(0xFF2a0000),
          borderRadius: BorderRadius.circular(8),
          child: Container(
            padding: const EdgeInsets.all(12),
            decoration: BoxDecoration(
              borderRadius: BorderRadius.circular(8),
              border: Border.all(color: Colors.redAccent, width: 1.5),
            ),
            child: Column(
              mainAxisSize: MainAxisSize.min,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Row(
                  children: [
                    const Icon(Icons.error_outline,
                        color: Colors.redAccent, size: 18),
                    const SizedBox(width: 6),
                    const Expanded(
                      child: Text(
                        'Yakalanan Hata',
                        style: TextStyle(
                            color: Colors.redAccent,
                            fontWeight: FontWeight.bold),
                      ),
                    ),
                    IconButton(
                      icon: const Icon(Icons.close,
                          color: Colors.white70, size: 16),
                      tooltip: 'Kapat',
                      padding: EdgeInsets.zero,
                      constraints: const BoxConstraints(
                          minWidth: 24, minHeight: 24),
                      onPressed: () => sonHataDetay.value = null,
                    ),
                  ],
                ),
                const SizedBox(height: 6),
                ConstrainedBox(
                  constraints: const BoxConstraints(maxHeight: 240),
                  child: SingleChildScrollView(
                    child: SelectableText(
                      '${detay.exception}\n\n${detay.stack ?? ""}',
                      style: const TextStyle(
                          color: Colors.white,
                          fontFamily: 'monospace',
                          fontSize: 10),
                    ),
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}