/// 观看上报（计费）响应模型（《03-接口文档》5.3）
class WatchResult {
  WatchResult({
    required this.costType,
    required this.costPoints,
    required this.remainingPoints,
    required this.freeRemainingToday,
  });

  /// 计费类型：0 占用免费额度 / 1 积分扣减 / 2 会员免费 / 3 重复观看或本人作品
  final int costType;

  /// 本次扣除积分（cost_type=1 时为 1，其余为 0）
  final int costPoints;

  /// 当前剩余积分
  final int remainingPoints;

  /// 今日免费观看剩余次数
  final int freeRemainingToday;

  bool get isPointsCost => costType == 1;

  factory WatchResult.fromJson(Map<String, dynamic> json) => WatchResult(
        costType: (json['cost_type'] as num?)?.toInt() ?? 0,
        costPoints: (json['cost_points'] as num?)?.toInt() ?? 0,
        remainingPoints: (json['remaining_points'] as num?)?.toInt() ?? 0,
        freeRemainingToday: (json['free_remaining_today'] as num?)?.toInt() ?? 0,
      );
}