import 'dart:io';

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

import '../app/tema.dart';
import '../cekirdek/ffmpeg_servisi.dart';
import '../karakter/karakter_servisi.dart';
import '../veri/isar_servisi.dart';
import '../veri/modeller/bolum.dart';
import '../veri/modeller/film_proje.dart';
import '../veri/modeller/karakter.dart';
import '../veri/modeller/sahne.dart';
import 'ai_senaryo.dart';
import 'film_montaj_servisi.dart';
import 'film_servisi.dart';
import 'sahne_duzenle.dart';
import 'sahne_uretim_servisi.dart';

/// Film/Dizi Stüdyosu — PROJE → BÖLÜM → SAHNE orkestra katmanı.
class FilmEkrani extends ConsumerWidget {
  const FilmEkrani({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return const Padding(
      padding: EdgeInsets.fromLTRB(12, 10, 12, 8),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          SizedBox(width: 240, child: _ProjePaneli()),
          SizedBox(width: 12),
          Expanded(child: _IcerikPaneli()),
        ],
      ),
    );
  }
}

// ============================ SOL: PROJELER ============================
class _ProjePaneli extends ConsumerWidget {
  const _ProjePaneli();

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final projeler = ref.watch(projeListesiProvider).valueOrNull ?? [];
    final aktif = ref.watch(aktifProjeProvider);
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(10),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            Row(children: [
              const Icon(Icons.movie_filter_rounded,
                  size: 18, color: FikoRenkler.neonMor),
              const SizedBox(width: 7),
              const Expanded(
                child: Text('Projeler',
                    style:
                        TextStyle(fontSize: 13.5, fontWeight: FontWeight.w800)),
              ),
            ]),
            const SizedBox(height: 8),
            _GradyanButon(
              etiket: 'Yeni Proje',
              ikon: Icons.add,
              renkler: const [FikoRenkler.neonMor, FikoRenkler.neonCyan],
              onTap: () => _projeDuzenle(context, ref, FilmProje()),
            ),
            const SizedBox(height: 8),
            Expanded(
              child: projeler.isEmpty
                  ? const _Bos(
                      ikon: Icons.movie_outlined,
                      mesaj: 'Henüz proje yok',
                      altMesaj: '"Yeni Proje" ile başla')
                  : ListView.separated(
                      itemCount: projeler.length,
                      separatorBuilder: (_, _) => const SizedBox(height: 6),
                      itemBuilder: (_, i) => _ProjeKart(
                        proje: projeler[i],
                        secili: projeler[i].id == aktif,
                      ),
                    ),
            ),
          ],
        ),
      ),
    );
  }
}

class _ProjeKart extends ConsumerWidget {
  const _ProjeKart({required this.proje, required this.secili});
  final FilmProje proje;
  final bool secili;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final t = Theme.of(context);
    final dizi = proje.tip == ProjeTipi.dizi;
    return GestureDetector(
      onTap: () {
        ref.read(aktifProjeProvider.notifier).state = proje.id;
        ref.read(aktifBolumProvider.notifier).state = null;
      },
      child: AnimatedContainer(
        duration: const Duration(milliseconds: 150),
        padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 9),
        decoration: BoxDecoration(
          color: secili
              ? FikoRenkler.neonMor.withValues(alpha: 0.13)
              : t.colorScheme.surface,
          borderRadius: BorderRadius.circular(10),
          border: Border.all(
              color: secili
                  ? FikoRenkler.neonMor.withValues(alpha: 0.5)
                  : t.dividerColor),
          boxShadow: secili
              ? [
                  BoxShadow(
                      color: FikoRenkler.neonMor.withValues(alpha: 0.16),
                      blurRadius: 12,
                      spreadRadius: 1)
                ]
              : null,
        ),
        child: Row(children: [
          Icon(dizi ? Icons.live_tv_rounded : Icons.theaters_rounded,
              size: 17,
              color: secili
                  ? FikoRenkler.neonMor
                  : t.colorScheme.onSurface.withValues(alpha: 0.6)),
          const SizedBox(width: 8),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(proje.ad.isEmpty ? 'İsimsiz' : proje.ad,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: TextStyle(
                        fontSize: 12.5,
                        fontWeight:
                            secili ? FontWeight.w800 : FontWeight.w600)),
                Text(
                    [
                      dizi ? 'Dizi' : 'Film',
                      if (proje.tur.isNotEmpty) proje.tur,
                    ].join(' • '),
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: TextStyle(
                        fontSize: 9.5,
                        color: t.colorScheme.onSurface.withValues(alpha: 0.5))),
              ],
            ),
          ),
          InkWell(
            onTap: () => _projeDuzenle(context, ref, proje),
            child: const Padding(
                padding: EdgeInsets.all(2), child: Icon(Icons.edit, size: 14)),
          ),
        ]),
      ),
    );
  }
}

// ====================== ORTA: BÖLÜM / SAHNE PANOSU ======================
class _IcerikPaneli extends ConsumerWidget {
  const _IcerikPaneli();

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final projeId = ref.watch(aktifProjeProvider);
    if (projeId == null) {
      return const Card(
        child: _Bos(
            ikon: Icons.theaters_rounded,
            mesaj: 'Bir proje seç',
            altMesaj: 'Soldan bir proje seç veya yeni oluştur'),
      );
    }
    final proje =
        (ref.watch(projeListesiProvider).valueOrNull ?? []).where((p) => p.id == projeId);
    if (proje.isEmpty) return const SizedBox.shrink();
    final p = proje.first;
    final bolumId = ref.watch(aktifBolumProvider);
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(12),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            _BolumSeridi(proje: p),
            const Divider(height: 18),
            Expanded(
              child: bolumId == null
                  ? const _Bos(
                      ikon: Icons.dashboard_customize_rounded,
                      mesaj: 'Bir bölüm seç',
                      altMesaj: 'Storyboard panosu için bir bölüm aç')
                  : _SahnePanosu(bolumId: bolumId),
            ),
          ],
        ),
      ),
    );
  }
}

class _BolumSeridi extends ConsumerWidget {
  const _BolumSeridi({required this.proje});
  final FilmProje proje;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final bolumler = ref.watch(bolumListesiProvider).valueOrNull ?? [];
    final aktif = ref.watch(aktifBolumProvider);
    final dizi = proje.tip == ProjeTipi.dizi;
    return Row(children: [
      Icon(dizi ? Icons.live_tv_rounded : Icons.theaters_rounded,
          size: 18, color: FikoRenkler.neonMor),
      const SizedBox(width: 8),
      Text(proje.ad,
          style: const TextStyle(fontSize: 14, fontWeight: FontWeight.w800)),
      const SizedBox(width: 14),
      Expanded(
        child: bolumler.isEmpty
            ? Text('Henüz bölüm yok',
                style: TextStyle(
                    fontSize: 11,
                    color: Theme.of(context)
                        .colorScheme
                        .onSurface
                        .withValues(alpha: 0.45)))
            : SizedBox(
                height: 30,
                child: ListView.separated(
                  scrollDirection: Axis.horizontal,
                  itemCount: bolumler.length,
                  separatorBuilder: (_, _) => const SizedBox(width: 6),
                  itemBuilder: (_, i) {
                    final b = bolumler[i];
                    final secili = b.id == aktif;
                    final etiket = dizi
                        ? 'S${b.sezonNo}B${b.bolumNo}'
                        : (b.baslik.isEmpty ? 'Bölüm' : b.baslik);
                    return GestureDetector(
                      onTap: () =>
                          ref.read(aktifBolumProvider.notifier).state = b.id,
                      onLongPress: () => _bolumDuzenle(context, ref, proje, b),
                      child: Container(
                        padding: const EdgeInsets.symmetric(
                            horizontal: 11, vertical: 5),
                        decoration: BoxDecoration(
                          color: secili
                              ? FikoRenkler.neonMor.withValues(alpha: 0.2)
                              : Theme.of(context).colorScheme.surface,
                          borderRadius: BorderRadius.circular(8),
                          border: Border.all(
                              color: secili
                                  ? FikoRenkler.neonMor
                                  : Theme.of(context).dividerColor),
                        ),
                        child: Tooltip(
                          message: b.baslik.isEmpty ? etiket : b.baslik,
                          child: Text(etiket,
                              style: TextStyle(
                                  fontSize: 11.5,
                                  fontWeight: secili
                                      ? FontWeight.w800
                                      : FontWeight.w600,
                                  color: secili
                                      ? FikoRenkler.neonMor
                                      : Theme.of(context).colorScheme.onSurface)),
                        ),
                      ),
                    );
                  },
                ),
              ),
      ),
      const SizedBox(width: 8),
      OutlinedButton.icon(
        style: OutlinedButton.styleFrom(visualDensity: VisualDensity.compact),
        icon: const Icon(Icons.add, size: 15),
        label: const Text('Bölüm', style: TextStyle(fontSize: 11.5)),
        onPressed: () => _bolumDuzenle(context, ref, proje, Bolum()),
      ),
    ]);
  }
}

// ----------------------- STORYBOARD PANOSU -----------------------
class _SahnePanosu extends ConsumerWidget {
  const _SahnePanosu({required this.bolumId});
  final int bolumId;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    // Üretim tamamlanma takibini (orkestratör dinleyicisi) aktif tut.
    ref.watch(sahneUretimServisiProvider);
    final sahneler = ref.watch(sahneListesiProvider).valueOrNull ?? [];
    final karakterler = ref.watch(karakterlerProvider).valueOrNull ?? [];
    final karakterAd = {for (final k in karakterler) k.id: k};
    return Column(
      crossAxisAlignment: CrossAxisAlignment.stretch,
      children: [
        Row(children: [
          const Icon(Icons.dashboard_rounded,
              size: 16, color: FikoRenkler.neonCyan),
          const SizedBox(width: 6),
          const Text('Storyboard Panosu',
              style: TextStyle(fontSize: 12.5, fontWeight: FontWeight.w800)),
          const SizedBox(width: 8),
          Text('${sahneler.length} sahne',
              style: TextStyle(
                  fontSize: 10.5,
                  color: Theme.of(context)
                      .colorScheme
                      .onSurface
                      .withValues(alpha: 0.5))),
          const Spacer(),
          Builder(builder: (context) {
            final hazir = sahneler
                .where((s) =>
                    s.durum == SahneDurumu.hazir &&
                    s.uretilenVideoYolu.isNotEmpty)
                .length;
            return OutlinedButton.icon(
              style: OutlinedButton.styleFrom(
                visualDensity: VisualDensity.compact,
                foregroundColor: FikoRenkler.neonYesil,
                side: const BorderSide(color: FikoRenkler.neonYesil),
                padding: const EdgeInsets.symmetric(horizontal: 10),
              ),
              icon: const Icon(Icons.movie_filter_rounded, size: 15),
              label: Text('🎬 Bölümü Birleştir${hazir > 0 ? ' ($hazir)' : ''}',
                  style: const TextStyle(fontSize: 11.5)),
              onPressed:
                  hazir == 0 ? null : () => _bolumuBirlestir(context, ref, bolumId),
            );
          }),
          const SizedBox(width: 8),
          OutlinedButton.icon(
            style: OutlinedButton.styleFrom(
              visualDensity: VisualDensity.compact,
              foregroundColor: FikoRenkler.neonAmber,
              side: const BorderSide(color: FikoRenkler.neonAmber),
              padding: const EdgeInsets.symmetric(horizontal: 10),
            ),
            icon: const Icon(Icons.auto_fix_high_rounded, size: 15),
            label: const Text('🤖 AI Senaryo', style: TextStyle(fontSize: 11.5)),
            onPressed: () => aiSenaryoAc(context, ref, bolumId),
          ),
          const SizedBox(width: 8),
          _GradyanButon(
            etiket: 'Yeni Sahne',
            ikon: Icons.add_photo_alternate_rounded,
            renkler: const [FikoRenkler.neonCyan, FikoRenkler.neonMor],
            dar: true,
            onTap: () async {
              final s = Sahne()
                ..bolumId = bolumId
                ..sira = await FilmServisi.sonrakiSira(bolumId);
              await FilmServisi.sahneKaydet(s);
            },
          ),
        ]),
        const SizedBox(height: 10),
        Expanded(
          child: sahneler.isEmpty
              ? const _Bos(
                  ikon: Icons.add_photo_alternate_outlined,
                  mesaj: 'Bu bölümde sahne yok',
                  altMesaj: '"Yeni Sahne" ile panoya kart ekle')
              : ReorderableListView.builder(
                  buildDefaultDragHandles: false,
                  itemCount: sahneler.length,
                  onReorder: (eski, yeni) async {
                    final liste = [...sahneler];
                    if (yeni > eski) yeni -= 1;
                    final tasinan = liste.removeAt(eski);
                    liste.insert(yeni, tasinan);
                    await FilmServisi.sahneSiralariniGuncelle(liste);
                  },
                  itemBuilder: (_, i) => Padding(
                    key: ValueKey(sahneler[i].id),
                    padding: const EdgeInsets.only(bottom: 10),
                    child: _SahneKart(
                        sahne: sahneler[i],
                        indeks: i,
                        karakterAd: karakterAd),
                  ),
                ),
        ),
      ],
    );
  }

  Future<void> _bolumuBirlestir(
      BuildContext context, WidgetRef ref, int bolumId) async {
    final klasor = ref.read(ayarlarProvider).ciktiKlasoru;
    final ilerleme = ValueNotifier<double>(0);
    showDialog<void>(
      context: context,
      barrierDismissible: false,
      builder: (_) => AlertDialog(
        content: Row(children: [
          ValueListenableBuilder<double>(
            valueListenable: ilerleme,
            builder: (_, v, child) => SizedBox(
              width: 34,
              height: 34,
              child: CircularProgressIndicator(
                  value: v > 0 ? v : null, strokeWidth: 3),
            ),
          ),
          const SizedBox(width: 16),
          const Expanded(child: Text('Bölüm birleştiriliyor…')),
        ]),
      ),
    );
    String? sonuc;
    try {
      sonuc = await FilmMontajServisi.bolumuBirlestir(
        bolumId: bolumId,
        ciktiKlasoru: klasor,
        ilerle: (o) => ilerleme.value = o,
      );
    } catch (_) {}
    if (context.mounted) {
      Navigator.of(context, rootNavigator: true).pop();
    }
    if (!context.mounted) return;
    final msj = ScaffoldMessenger.of(context);
    if (sonuc != null) {
      msj.showSnackBar(SnackBar(
        backgroundColor: FikoRenkler.neonYesil.withValues(alpha: 0.92),
        content: Text('🎬 Bölüm birleştirildi:\n$sonuc',
            style: const TextStyle(color: Colors.black)),
      ));
    } else {
      final h = FfmpegServisi.sonHata;
      msj.showSnackBar(SnackBar(
        backgroundColor: Colors.red.shade700,
        content: Text(h != null
            ? 'Birleştirme başarısız:\n$h'
            : 'Birleştirilecek hazır sahne videosu bulunamadı.'),
      ));
    }
  }
}

class _SahneKart extends ConsumerWidget {
  const _SahneKart(
      {required this.sahne, required this.indeks, required this.karakterAd});
  final Sahne sahne;
  final int indeks;
  final Map<int, Karakter> karakterAd;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final t = Theme.of(context);
    final (durumRenk, durumEtiket) = switch (sahne.durum) {
      SahneDurumu.taslak => (
          t.colorScheme.onSurface.withValues(alpha: 0.5),
          'Taslak'
        ),
      SahneDurumu.uretiliyor => (FikoRenkler.neonAmber, 'Üretiliyor'),
      SahneDurumu.hazir => (FikoRenkler.neonYesil, 'Hazır'),
    };
    final keyframeVar =
        sahne.keyframeYolu.isNotEmpty && File(sahne.keyframeYolu).existsSync();
    final uretiliyor = sahne.durum == SahneDurumu.uretiliyor;
    return Container(
      decoration: BoxDecoration(
        color: t.colorScheme.surface,
        borderRadius: BorderRadius.circular(11),
        border: Border.all(color: t.dividerColor),
      ),
      clipBehavior: Clip.antiAlias,
      child: IntrinsicHeight(
        child: Row(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            // Sürükle tutamacı + sıra no
            ReorderableDragStartListener(
              index: indeks,
              child: Container(
                width: 34,
                color: FikoRenkler.neonMor.withValues(alpha: 0.08),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Text('${indeks + 1}',
                        style: const TextStyle(
                            fontSize: 13,
                            fontWeight: FontWeight.w800,
                            color: FikoRenkler.neonMor)),
                    const SizedBox(height: 4),
                    Icon(Icons.drag_indicator,
                        size: 16,
                        color: t.colorScheme.onSurface.withValues(alpha: 0.4)),
                  ],
                ),
              ),
            ),
            // Keyframe önizleme
            Container(
              width: 116,
              color: Colors.black26,
              child: keyframeVar
                  ? Image.file(File(sahne.keyframeYolu),
                      fit: BoxFit.cover, cacheWidth: 240)
                  : Center(
                      child: Icon(
                          sahne.durum == SahneDurumu.uretiliyor
                              ? Icons.hourglass_top_rounded
                              : Icons.image_outlined,
                          size: 28,
                          color:
                              t.colorScheme.onSurface.withValues(alpha: 0.3))),
            ),
            // İçerik
            Expanded(
              child: Padding(
                padding: const EdgeInsets.fromLTRB(11, 9, 8, 9),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Row(children: [
                      Expanded(
                        child: Text(
                            sahne.aciklama.isEmpty
                                ? 'Sahne ${indeks + 1}'
                                : sahne.aciklama,
                            maxLines: 1,
                            overflow: TextOverflow.ellipsis,
                            style: const TextStyle(
                                fontSize: 12.5,
                                fontWeight: FontWeight.w700)),
                      ),
                      Container(
                        padding: const EdgeInsets.symmetric(
                            horizontal: 7, vertical: 2),
                        decoration: BoxDecoration(
                          color: durumRenk.withValues(alpha: 0.16),
                          borderRadius: BorderRadius.circular(6),
                        ),
                        child: Text(durumEtiket,
                            style: TextStyle(
                                fontSize: 9.5,
                                fontWeight: FontWeight.w800,
                                color: durumRenk)),
                      ),
                    ]),
                    const SizedBox(height: 3),
                    Wrap(spacing: 8, runSpacing: 2, children: [
                      if (sahne.mekan.isNotEmpty)
                        _meta(t, Icons.place_outlined, sahne.mekan),
                      if (sahne.zaman.isNotEmpty)
                        _meta(t, Icons.schedule, sahne.zaman),
                      if (sahne.ruhHali.isNotEmpty)
                        _meta(t, Icons.mood, sahne.ruhHali),
                      _meta(t, Icons.timer_outlined,
                          '${sahne.sureSn.toStringAsFixed(0)} sn'),
                    ]),
                    if (sahne.karakterIdler.isNotEmpty) ...[
                      const SizedBox(height: 5),
                      Wrap(spacing: 5, runSpacing: 4, children: [
                        for (final id in sahne.karakterIdler)
                          _KarakterCip(karakter: karakterAd[id]),
                      ]),
                    ],
                    const Spacer(),
                    Row(children: [
                      TextButton.icon(
                        style: TextButton.styleFrom(
                            visualDensity: VisualDensity.compact,
                            padding:
                                const EdgeInsets.symmetric(horizontal: 8)),
                        icon: const Icon(Icons.edit, size: 14),
                        label: const Text('Düzenle',
                            style: TextStyle(fontSize: 11)),
                        onPressed: () => sahneDuzenleAc(context, ref, sahne),
                      ),
                      const SizedBox(width: 4),
                      uretiliyor
                          ? const Padding(
                              padding: EdgeInsets.symmetric(horizontal: 14),
                              child: SizedBox(
                                  width: 16,
                                  height: 16,
                                  child: CircularProgressIndicator(
                                      strokeWidth: 2,
                                      color: FikoRenkler.neonAmber)),
                            )
                          : FilledButton.icon(
                              style: FilledButton.styleFrom(
                                visualDensity: VisualDensity.compact,
                                padding:
                                    const EdgeInsets.symmetric(horizontal: 10),
                                backgroundColor:
                                    FikoRenkler.neonMor.withValues(alpha: 0.85),
                              ),
                              icon: const Icon(Icons.auto_awesome, size: 14),
                              label: const Text('Üret',
                                  style: TextStyle(fontSize: 11)),
                              onPressed: () => _uret(context, ref),
                            ),
                      const Spacer(),
                      InkWell(
                        onTap: () => FilmServisi.sahneSil(sahne.id),
                        child: Padding(
                          padding: const EdgeInsets.all(4),
                          child: Icon(Icons.delete_outline,
                              size: 16,
                              color: t.colorScheme.onSurface
                                  .withValues(alpha: 0.5)),
                        ),
                      ),
                    ]),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _meta(ThemeData t, IconData ikon, String metin) => Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          Icon(ikon,
              size: 12,
              color: t.colorScheme.onSurface.withValues(alpha: 0.55)),
          const SizedBox(width: 3),
          Text(metin,
              style: TextStyle(
                  fontSize: 10,
                  color: t.colorScheme.onSurface.withValues(alpha: 0.65))),
        ],
      );

  Future<void> _uret(BuildContext context, WidgetRef ref) async {
    final messenger = ScaffoldMessenger.of(context);
    try {
      await ref.read(sahneUretimServisiProvider).uret(sahne);
      messenger.showSnackBar(const SnackBar(
        content: Text('Sahne MSR motoruna gönderildi. Üretiliyor…'),
        duration: Duration(seconds: 2),
      ));
    } on SahneUretimHatasi catch (e) {
      messenger.showSnackBar(SnackBar(
        content: Text(e.mesaj),
        backgroundColor: Colors.redAccent,
        duration: const Duration(seconds: 4),
      ));
    }
  }
}

class _KarakterCip extends StatelessWidget {
  const _KarakterCip({required this.karakter});
  final Karakter? karakter;

  @override
  Widget build(BuildContext context) {
    final ad = karakter?.ad.isNotEmpty == true ? karakter!.ad : 'silinmiş';
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 7, vertical: 2),
      decoration: BoxDecoration(
        color: FikoRenkler.neonYesil.withValues(alpha: 0.13),
        borderRadius: BorderRadius.circular(20),
        border: Border.all(color: FikoRenkler.neonYesil.withValues(alpha: 0.4)),
      ),
      child: Row(mainAxisSize: MainAxisSize.min, children: [
        const Icon(Icons.face, size: 11, color: FikoRenkler.neonYesil),
        const SizedBox(width: 4),
        Text(ad,
            style: const TextStyle(
                fontSize: 10,
                fontWeight: FontWeight.w600,
                color: FikoRenkler.neonYesil)),
      ]),
    );
  }
}

// ============================ ORTAK PARÇALAR ============================
class _GradyanButon extends StatelessWidget {
  const _GradyanButon(
      {required this.etiket,
      required this.ikon,
      required this.renkler,
      required this.onTap,
      this.dar = false});
  final String etiket;
  final IconData ikon;
  final List<Color> renkler;
  final VoidCallback onTap;
  final bool dar;

  @override
  Widget build(BuildContext context) {
    return DecoratedBox(
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(10),
        gradient: LinearGradient(colors: renkler),
      ),
      child: FilledButton.icon(
        style: FilledButton.styleFrom(
            backgroundColor: Colors.transparent,
            shadowColor: Colors.transparent,
            visualDensity: dar ? VisualDensity.compact : null,
            padding: dar ? const EdgeInsets.symmetric(horizontal: 12) : null),
        icon: Icon(ikon, size: dar ? 16 : 18),
        label: Text(etiket,
            style: TextStyle(
                fontWeight: FontWeight.w800, fontSize: dar ? 12 : 13)),
        onPressed: onTap,
      ),
    );
  }
}

class _Bos extends StatelessWidget {
  const _Bos(
      {required this.ikon, required this.mesaj, required this.altMesaj});
  final IconData ikon;
  final String mesaj, altMesaj;

  @override
  Widget build(BuildContext context) {
    final soluk =
        Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.4);
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(ikon, size: 52, color: soluk),
          const SizedBox(height: 12),
          Text(mesaj,
              style: TextStyle(
                  fontSize: 14, fontWeight: FontWeight.w600, color: soluk)),
          const SizedBox(height: 5),
          Text(altMesaj,
              textAlign: TextAlign.center,
              style: TextStyle(fontSize: 11.5, color: soluk)),
        ],
      ),
    );
  }
}

// ============================ DİYALOGLAR ============================
const _projeTurleri = [
  'dram', 'aksiyon', 'komedi', 'gerilim', 'korku',
  'bilim kurgu', 'fantastik', 'romantik', 'belgesel', 'animasyon',
];
const _projeStiller = [
  'cinematic', 'photorealistic', 'anime', 'noir',
  '3d render', 'oil painting', 'fantasy art', 'cyberpunk',
];
const _oranlar = ['16:9', '9:16', '1:1', '2.39:1', '4:3', '21:9'];

void _projeDuzenle(BuildContext context, WidgetRef ref, FilmProje p) {
  final ad = TextEditingController(text: p.ad);
  var tip = p.tip;
  var tur = p.tur, stil = p.stil, oran = p.enBoyOrani;
  final yeni = p.id == _isarAuto;
  showDialog<void>(
    context: context,
    builder: (ctx) => StatefulBuilder(
      builder: (ctx, setSt) => AlertDialog(
        title: Text(yeni ? 'Yeni Proje' : 'Proje Düzenle'),
        content: SizedBox(
          width: 420,
          child: SingleChildScrollView(
            child: Column(mainAxisSize: MainAxisSize.min, children: [
              TextField(
                  controller: ad,
                  autofocus: true,
                  decoration: const InputDecoration(labelText: 'Proje adı *')),
              const SizedBox(height: 10),
              SegmentedButton<ProjeTipi>(
                segments: const [
                  ButtonSegment(
                      value: ProjeTipi.film,
                      label: Text('Film'),
                      icon: Icon(Icons.theaters_rounded, size: 16)),
                  ButtonSegment(
                      value: ProjeTipi.dizi,
                      label: Text('Dizi'),
                      icon: Icon(Icons.live_tv_rounded, size: 16)),
                ],
                selected: {tip},
                onSelectionChanged: (s) => setSt(() => tip = s.first),
              ),
              const SizedBox(height: 10),
              Row(children: [
                Expanded(
                    child: _drop('Tür', _projeTurleri, tur,
                        (v) => setSt(() => tur = v))),
                const SizedBox(width: 8),
                Expanded(
                    child: _drop('Stil', _projeStiller, stil,
                        (v) => setSt(() => stil = v))),
              ]),
              const SizedBox(height: 8),
              _drop('En/boy oranı', _oranlar, oran,
                  (v) => setSt(() => oran = v)),
            ]),
          ),
        ),
        actions: [
          if (!yeni)
            TextButton(
              onPressed: () {
                FilmServisi.projeSil(p.id);
                if (ref.read(aktifProjeProvider) == p.id) {
                  ref.read(aktifProjeProvider.notifier).state = null;
                  ref.read(aktifBolumProvider.notifier).state = null;
                }
                Navigator.pop(ctx);
              },
              child:
                  const Text('Sil', style: TextStyle(color: Colors.redAccent)),
            ),
          TextButton(
              onPressed: () => Navigator.pop(ctx),
              child: const Text('Vazgeç')),
          FilledButton(
            onPressed: () async {
              if (ad.text.trim().isEmpty) return;
              p
                ..ad = ad.text.trim()
                ..tip = tip
                ..tur = tur
                ..stil = stil
                ..enBoyOrani = oran;
              final id = await FilmServisi.projeKaydet(p);
              ref.read(aktifProjeProvider.notifier).state = id;
              if (ctx.mounted) Navigator.pop(ctx);
            },
            child: const Text('Kaydet'),
          ),
        ],
      ),
    ),
  );
}

void _bolumDuzenle(
    BuildContext context, WidgetRef ref, FilmProje proje, Bolum b) async {
  final dizi = proje.tip == ProjeTipi.dizi;
  final yeni = b.id == _isarAuto;
  if (yeni) {
    b
      ..projeId = proje.id
      ..bolumNo = await FilmServisi.sonrakiBolumNo(proje.id, b.sezonNo);
  }
  final baslik = TextEditingController(text: b.baslik);
  final ozet = TextEditingController(text: b.ozet);
  final senaryo = TextEditingController(text: b.senaryo);
  final sezon = TextEditingController(text: '${b.sezonNo}');
  final bolumNo = TextEditingController(text: '${b.bolumNo}');
  if (!context.mounted) return;
  showDialog<void>(
    context: context,
    builder: (ctx) => AlertDialog(
      title: Text(yeni ? 'Yeni Bölüm' : 'Bölüm Düzenle'),
      content: SizedBox(
        width: 460,
        child: SingleChildScrollView(
          child: Column(mainAxisSize: MainAxisSize.min, children: [
            if (dizi)
              Row(children: [
                Expanded(
                    child: TextField(
                        controller: sezon,
                        keyboardType: TextInputType.number,
                        decoration:
                            const InputDecoration(labelText: 'Sezon no'))),
                const SizedBox(width: 8),
                Expanded(
                    child: TextField(
                        controller: bolumNo,
                        keyboardType: TextInputType.number,
                        decoration:
                            const InputDecoration(labelText: 'Bölüm no'))),
              ]),
            if (dizi) const SizedBox(height: 8),
            TextField(
                controller: baslik,
                autofocus: true,
                decoration: const InputDecoration(labelText: 'Başlık')),
            const SizedBox(height: 8),
            TextField(
                controller: ozet,
                minLines: 2,
                maxLines: 3,
                decoration: const InputDecoration(labelText: 'Özet')),
            const SizedBox(height: 8),
            TextField(
                controller: senaryo,
                minLines: 3,
                maxLines: 8,
                decoration:
                    const InputDecoration(labelText: 'Senaryo metni')),
          ]),
        ),
      ),
      actions: [
        if (!yeni)
          TextButton(
            onPressed: () {
              FilmServisi.bolumSil(b.id);
              if (ref.read(aktifBolumProvider) == b.id) {
                ref.read(aktifBolumProvider.notifier).state = null;
              }
              Navigator.pop(ctx);
            },
            child: const Text('Sil', style: TextStyle(color: Colors.redAccent)),
          ),
        TextButton(
            onPressed: () => Navigator.pop(ctx), child: const Text('Vazgeç')),
        FilledButton(
          onPressed: () async {
            b
              ..baslik = baslik.text.trim()
              ..ozet = ozet.text.trim()
              ..senaryo = senaryo.text.trim()
              ..sezonNo = int.tryParse(sezon.text.trim()) ?? b.sezonNo
              ..bolumNo = int.tryParse(bolumNo.text.trim()) ?? b.bolumNo;
            final id = await FilmServisi.bolumKaydet(b);
            ref.read(aktifBolumProvider.notifier).state = id;
            if (ctx.mounted) Navigator.pop(ctx);
          },
          child: const Text('Kaydet'),
        ),
      ],
    ),
  );
}

Widget _drop(String etiket, List<String> opts, String secili,
    void Function(String) onChange) {
  final deger = opts.contains(secili) ? secili : null;
  return DropdownButtonFormField<String>(
    initialValue: deger,
    isExpanded: true,
    decoration: InputDecoration(labelText: etiket, isDense: true),
    items: [
      for (final o in opts)
        DropdownMenuItem(
            value: o, child: Text(o, style: const TextStyle(fontSize: 12)))
    ],
    onChanged: (v) {
      if (v != null) onChange(v);
    },
  );
}

// Isar.autoIncrement sabiti (yeni kayıt tespiti)
// ignore: constant_identifier_names
const _isarAuto = -9223372036854775808;