/// 图转视频任务项（V2 字段映射）
class TaskItem {
  const TaskItem({
    required this.templateName,
    required this.title,
    this.previewImageUrl,
    this.previewVideoUrl,
    this.imageCount = 0,
    this.taskType,
    this.needopt = false,
    this.ext,
    this.credits480p,
    this.credits720p,
  });

  final String templateName;
  final String title;
  final String? previewImageUrl;
  final String? previewVideoUrl;
  final int imageCount;
  final String? taskType;
  final bool needopt;
  final String? ext;
  /// 480P 积分，来自 reverify.greaves
  final int? credits480p;
  /// 720P 积分，来自 preprocess.greaves
  final int? credits720p;

  @override
  String toString() =>
      'TaskItem(templateName: $templateName, title: $title, previewImageUrl: $previewImageUrl, '
      'previewVideoUrl: $previewVideoUrl, imageCount: $imageCount, taskType: $taskType, needopt: $needopt, credits480p: $credits480p, credits720p: $credits720p)';

  factory TaskItem.fromJson(Map<String, dynamic> json) {
    final extract = json['extract'] as Map<String, dynamic>?;
    final preempt = json['preempt'] as Map<String, dynamic>?;
    final reverify = json['reverify'] as Map<String, dynamic>?;
    final preprocess = json['preprocess'] as Map<String, dynamic>?;
    final imgUrl = extract?['digitize'] as String?;
    final videoUrl = preempt?['digitize'] as String?;
    final greaves480 = reverify?['greaves'];
    final greaves720 = preprocess?['greaves'];
    final credits480p = greaves480 is int
        ? greaves480
        : greaves480 is num
            ? greaves480.toInt()
            : null;
    final credits720p = greaves720 is int
        ? greaves720
        : greaves720 is num
            ? greaves720.toInt()
            : null;
    return TaskItem(
      templateName: json['congregation'] as String? ?? '',
      title: json['glossary'] as String? ?? '',
      previewImageUrl: imgUrl,
      previewVideoUrl: videoUrl,
      imageCount: json['simplify'] as int? ?? 0,
      taskType: json['cipher'] as String?,
      needopt: json['allowance'] as bool? ?? false,
      ext: json['nexus'] as String? ?? '',
      credits480p: credits480p,
      credits720p: credits720p,
    );
  }
}