using Microsoft.Extensions.Caching.Distributed;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Syc.Abp.Caching.Redis
{
    public class CacheItem<T>
    {
        public CacheItem()
        {

        }

        public CacheItem(T value, DistributedCacheEntryOptions options)
        {
            Value = value;
            AbsoluteExpiration = options.AbsoluteExpiration;
            AbsoluteExpirationRelativeToNow = options.AbsoluteExpirationRelativeToNow.HasValue ? new DateTimeOffset(DateTimeOffset.Now.Ticks + options.AbsoluteExpirationRelativeToNow.Value.Ticks, TimeSpan.Zero) : null;
            SlidingExpiration = options.SlidingExpiration.HasValue ? (int)options.SlidingExpiration.Value.TotalSeconds : null;
        }

        /// <summary>
        /// 绝对过期，到达预设时间就过期
        /// </summary>
        public DateTimeOffset? AbsoluteExpiration { get; set; }

        /// <summary>
        /// 相对当前时间绝对过期
        /// </summary>
        public DateTimeOffset? AbsoluteExpirationRelativeToNow { get; set; }

        /// <summary>
        /// 滑动过期
        /// </summary>
        public int? SlidingExpiration { get; set; }

        public T? Value { get; set; }
    }
}