// Yeni video workflow: T2V + first/last frame guide — app kodu → ComfyUI.
import 'dart:io';
import 'package:dio/dio.dart';
import '../lib/comfy/workflow/video_workflow.dart';

Future<void> main() async {
  const base = 'http://127.0.0.1:8188';
  final dio = Dio(BaseOptions(baseUrl: base, receiveTimeout: const Duration(minutes: 10)));

  // ComfyUI output'tan bir png al, input'a yükle (frame guide için)
  final dir = Directory(r'D:\Comfy\App\ComfyUI_windows_portable\ComfyUI\output\fikoyt');
  final png = dir.listSync().whereType<File>().firstWhere(
      (f) => f.path.endsWith('.png'), orElse: () => File(''));
  String? inputAdi;
  if (png.existsSync()) {
    final form = FormData.fromMap({
      'image': await MultipartFile.fromFile(png.path, filename: png.uri.pathSegments.last),
      'overwrite': 'true',
    });
    inputAdi = (await dio.post('/upload/image', data: form)).data['name'] as String;
    stdout.writeln('Guide görseli: $inputAdi');
  }

  Future<bool> calistir(VideoParametreleri p, String etiket) async {
    final r = await dio.post('/prompt',
        data: {'prompt': videoWorkflowOlustur(p), 'client_id': 'fikoyt-vg'});
    final pid = r.data['prompt_id'] as String;
    for (var i = 0; i < 200; i++) {
      await Future<void>.delayed(const Duration(seconds: 3));
      final h = (await dio.get('/history/$pid')).data as Map;
      if (h[pid] != null) {
        final st = (h[pid] as Map)['status'] as Map?;
        if (st?['status_str'] == 'error') {
          final msgs = st?['messages'] as List?;
          stdout.writeln('$etiket HATA: ${msgs?.lastWhere((m) => m[0] == 'execution_error', orElse: () => ['', {}])[1]}');
          return false;
        }
        if (st?['completed'] == true) {
          stdout.writeln('$etiket BASARILI');
          return true;
        }
      }
    }
    stdout.writeln('$etiket ZAMAN ASIMI');
    return false;
  }

  // 1) T2V (rehbersiz)
  final t2v = await calistir(
      VideoParametreleri(prompt: 'a calm ocean wave, cinematic',
          genislik: 512, yukseklik: 320, uzunluk: 49, steps: 14),
      'T2V');

  // 2) First + Last frame guide
  var guide = true;
  if (inputAdi != null) {
    guide = await calistir(
        VideoParametreleri(prompt: 'smooth camera motion, cinematic',
            genislik: 512, yukseklik: 320, uzunluk: 49, steps: 14,
            ilkKare: inputAdi, sonKare: inputAdi),
        'FIRST+LAST GUIDE');
  } else {
    stdout.writeln('GUIDE testi atlandi (png yok)');
  }

  exit(t2v && guide ? 0 : 1);
}