using System;

namespace CB.Cache.Redis
{
    /// <summary>
    /// 版 本 1.0
    /// Copyright (c) 2016-2017
    /// 创建人：赵轶
    /// 日 期：2017.10.10
    /// 描 述：实现Redis
    /// </summary>
    public class Redis : ICacheStrategy
    {
        /// <summary>
        /// 默认缓存存活期为3600秒(1小时)
        /// </summary>
        protected int _timeOut = 3600;

        //private static object syncObj = new object();

        /// <summary>
        /// 设置到期相对时间[单位: 秒] 
        /// </summary>
        public virtual int TimeOut
        {
            set { _timeOut = value > 0 ? value : 3600; }
            get { return _timeOut > 0 ? _timeOut : 3600; }
        }

        /// <summary>
        /// 添加指定ID的对象
        /// </summary>
        /// <param name="objId">缓存键</param>
        /// <param name="o">缓存对象</param>
        public void AddObject(string objId, object o)
        {
            RedisCache.Set(objId, o, DateTime.Now.AddSeconds(TimeOut));
        }

        /// <summary>
        /// 添加指定ID的对象
        /// </summary>
        /// <param name="objId">缓存键</param>
        /// <param name="o">缓存对象</param>
        /// <param name="expire">到期时间,单位:秒</param>
        public void AddObject(string objId, object o, int expire)
        {
            RedisCache.Set(objId, o, DateTime.Now.AddSeconds(expire));
        }

        /// <summary>
        /// 添加指定ID的对象(关联指定文件组)
        /// </summary>
        /// <param name="objId">缓存键</param>
        /// <param name="o">缓存对象</param>
        /// <param name="files">关联的文件名</param>
        public void AddObjectWithFileChange(string objId, object o, string[] files)
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// 添加指定ID的对象(关联指定键值组)
        /// </summary>
        /// <param name="objId">缓存键</param>
        /// <param name="o">缓存对象</param>
        /// <param name="dependKey">依赖键</param>
        public void AddObjectWithDepend(string objId, object o, string[] dependKey)
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// 移除指定ID的对象
        /// </summary>
        /// <param name="objId">缓存键</param>
        public void RemoveObject(string objId)
        {
            RedisCache.Remove(objId);
        }
        /// <summary>
        /// 返回指定ID的对象
        /// </summary>
        /// <param name="objId">缓存键</param>
        /// <returns></returns>
        public object GetObject(string objId)
        {
            return RedisCache.Get<object>(objId);
        }

        /// <summary>
        /// 清空的有缓存数据, 注: 考虑效率问题，建议仅在需要时（如后台管理）使用.
        /// </summary>
        public void FlushAll()
        {
            RedisCache.RemoveAll();
        }
    }
}