namespace Apimanager_backend.Models
{
    public class UserPackage
    {/// <summary>
     /// 主键，自增
     /// </summary>
        public int Id { get; set; }

        /// <summary>
        /// 外键，用户ID
        /// </summary>
        public int UserId { get; set; }

        /// <summary>
        /// 外键，套餐ID
        /// </summary>
        public int PackageId { get; set; }

        /// <summary>
        /// 剩余调用次数
        /// </summary>
        public int RemainingCalls { get; set; }
        /// <summary>
        /// 套餐过期时间，可用于控制套餐是否过期
        /// </summary>
        public DateTime ExpiryDate { get; set; }  // timestamp
        /// <summary>
        /// 购买时间
        /// </summary>
        public DateTime PurchasedAt { get; set; } = DateTime.UtcNow;  // timestamp
        
        //导航属性
        public User? User { get; set; }
        public Apipackage? Package { get; set; }
    }
}