/// 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,
  });

  final String templateName;
  final String title;
  final String? previewImageUrl;
  final String? previewVideoUrl;
  final int imageCount;
  final String? taskType;
  final bool needopt;

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

  factory TaskItem.fromJson(Map<String, dynamic> json) {
    final extract = json['extract'] as Map<String, dynamic>?;
    final preempt = json['preempt'] as Map<String, dynamic>?;
    final imgUrl = extract?['digitize'] as String?;
    final videoUrl = preempt?['digitize'] as String?;
    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,
    );
  }
}