using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Globalization;
using System.Data;
using CP.Cache;
using CP.Common;
using CP.Model;
namespace CP.Business
{
    /// <summary>
    /// 专门的缓存清理工具类
    /// sam
    /// </summary>
    public class CacheUtils
    {
        /// <summary>
        /// 缓存
        /// </summary>
        static WMCache cache = WMCache.GetCacheService();

        /// <summary>
        /// 返回所有cache列表
        /// </summary>
        /// <returns></returns>
        public static List<string> GetCacheList()
        {
            return cache.GetKeys();
        }

        /// <summary>
        /// 清理所有Cache
        /// </summary>
        public static void RemoveAllCache()
        {
            cache.RemoveAll();
        }

        /// <summary>
        /// 根据前缀筛选获取所有Cache列表
        /// prefix对应枚举CachePrefix中的值
        /// </summary>
        /// <param name="prefix"></param>
        /// <returns></returns>
        public static List<string> GetCacheList(string prefix)
        {
            List<string> clist = cache.GetKeys();
            List<string> rlist = new List<string>();
            if (clist != null && clist.Count > 0)
            {
                foreach (string s in clist)
                {
                    if (s.IndexOf(prefix, StringComparison.CurrentCultureIgnoreCase) != -1)
                        rlist.Add(s);
                }
            }
            return rlist;
        }

        /// <summary>
        /// 根据key名称清除某一个cache的数据
        /// 完全匹配
        /// </summary>
        /// <param name="key"></param>
        public static void RemoveCacheByName(string key)
        {
            cache.RemoveObject(key);
        }

        /// <summary>
        /// 批量清理某一类cache数据
        /// 模糊匹配
        /// </summary>
        /// <param name="key"></param>
        public static void RemoveCacheLikeName(string key)
        {
            cache.RemoveObjectByRegex(key);
        }



        /// <summary>
        /// 清理某个彩种关于试机号的所有Cache
        /// </summary>
        /// <param name="prefix">彩种名称</param>
        public static void RemoveCacheLikeSjh(string prefix)
        {
            ///清理原始数据
            string key = "datalistall";
            if (!string.IsNullOrEmpty(prefix))
            {
                List<string> list = GetCacheList(prefix);
                for (int i = 0; i < list.Count; i++)
                {
                    if (list[i].IndexOf(key, StringComparison.CurrentCultureIgnoreCase) != -1)
                        cache.RemoveObject(list[i]);
                }
            }
            else
            {
                cache.RemoveObjectByRegex(key);
            }
            
            ///清理走势图页面数据
            key = "sjh";
            if (!string.IsNullOrEmpty(prefix))
            {
                List<string> list = GetCacheList(prefix);
                for (int i = 0; i < list.Count; i++)
                {
                    if (list[i].IndexOf(key, StringComparison.CurrentCultureIgnoreCase) != -1)
                        cache.RemoveObject(list[i]);
                }
            }
            else
            {
                cache.RemoveObjectByRegex(key);
            }
        }
        /// <summary>
        /// 清除某彩种所有缓存
        /// </summary>
        /// <param name="prefix"></param>
        public static void RemoveAllDataCache(string prefix)
        {
            var list = GetCacheList(prefix);
            foreach (var item in list)
            {
                RemoveCacheByName(item);
            }
        }

        #region 走势图/遗漏数据层面的Cache操作
        /// <summary>
        /// 清除某前缀的所有原始数据缓存
        /// prefix为空时，清除所有原始数据缓存
        /// 一级缓存
        /// </summary>
        /// <param name="prefix">可为空</param>
        public static void RemoveDataCache(string prefix = null)
        {
            string key = "datalist";

            string key2 = "kjh/data";

            if (!string.IsNullOrEmpty(prefix))
            {
                List<string> list = GetCacheList(prefix);
                for (int i = 0; i < list.Count; i++)
                {
                    if (list[i].IndexOf(key, StringComparison.CurrentCultureIgnoreCase) != -1 || list[i].IndexOf(key2, StringComparison.CurrentCultureIgnoreCase) != -1)
                        cache.RemoveObjectByRegex(list[i]);
                }
            }
            else
            {
                cache.RemoveObjectByRegex(key);
            }
        }

        /// <summary>
        /// 清除某前缀的所有遗漏数据缓存
        /// prefix为空时，清除所有遗漏数据缓存
        /// 二级缓存
        /// </summary>
        /// <param name="prefix">可为空</param>
        public static void RemoveMissDataCache(string prefix = null)
        {
            string key = "/yl/data/";

            if (!string.IsNullOrEmpty(prefix))
            {
                List<string> list = GetCacheList(prefix);
                for (int i = 0; i < list.Count; i++)
                {
                    if (list[i].IndexOf(key, StringComparison.CurrentCultureIgnoreCase) != -1)
                        cache.RemoveObjectByRegex(list[i]);
                }
            }
            else
            {
                cache.RemoveObjectByRegex(key);
            }
        }
        #endregion

        #region 走势图页面Cache操作
        /// <summary>
        /// 获取某前缀的所有走势图页面缓存
        /// prefix为空时，获取所有走势图页面缓存
        /// </summary>
        /// <param name="prefix"></param>
        /// <returns></returns>
        public static List<string> GetZstPageCacheList(string prefix = null)
        {
            string key = "/zst/page/";
            List<string> rlist = new List<string>();
            List<string> list = new List<string>();

            if (!string.IsNullOrEmpty(prefix))
                list = GetCacheList(prefix);
            else
                list = GetCacheList();

            for (int i = 0; i < list.Count; i++)
            {
                if (list[i].IndexOf(key, StringComparison.CurrentCultureIgnoreCase) != -1)
                    rlist.Add(list[i]);
            }
            return rlist;
        }

        /// <summary>
        /// 清除某前缀的所有走势图页面缓存
        /// prefix为空时，清除所有走势图页面缓存
        /// 三级缓存
        /// </summary>
        /// <param name="prefix">可为空.</param>
        public static void RemoveZstPageCache(string prefix = null)
        {
            List<string> list = GetZstPageCacheList(prefix);
            for (int i = 0; i < list.Count; i++)
            {
                cache.RemoveObjectByRegex(list[i]);
            }

        }
        #endregion

        #region 遗漏页面Cache操作
        /// <summary>
        /// 获取某前缀的所有遗漏页面缓存
        /// prefix为空时，获取所有遗漏页面缓存
        /// </summary>
        /// <param name="prefix"></param>
        /// <returns></returns>
        public static List<string> GetMissPageCacheList(string prefix = null)
        {
            string key = "/yl/page/";
            List<string> rlist = new List<string>();
            List<string> list = new List<string>();

            if (!string.IsNullOrEmpty(prefix))
                list = GetCacheList(prefix);
            else
                list = GetCacheList();

            for (int i = 0; i < list.Count; i++)
            {
                if (list[i].IndexOf(key, StringComparison.CurrentCultureIgnoreCase) != -1)
                    rlist.Add(list[i]);
            }
            return rlist;
        }

        /// <summary>
        /// 清除某前缀的所有遗漏页面缓存
        /// prefix为空时，清除所有遗漏页面缓存
        /// 三级缓存
        /// </summary>
        /// <param name="prefix">可为空</param>
        public static void RemoveMissPageCache(string prefix = null)
        {
            List<string> list = GetMissPageCacheList(prefix);
            for (int i = 0; i < list.Count; i++)
            {
                cache.RemoveObjectByRegex(list[i]);
            }
        }

        #endregion


    }
}