using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Configuration;
using System.Web.Caching;

namespace Ant.Service.Utilities
{
    /// <summary>
    /// cookies操作类
    /// </summary>
    public static class Cookies
    {
        /// <summary>
        /// cookies的作用域
        /// </summary>
        //private static string domain = ".taocz.com";
        private static string domain = ConfigurationManager.AppSettings["domain"].Trim();

        #region 不加密写入cookies
        /// <summary>
        /// 写入cookies[默认不加密]
        /// </summary>
        /// <param name="cname">cookies名称</param>
        /// <param name="values">cookies的值</param>
        /// <param name="days">有效期</param>
        public static void InnerCookie(string cname, string values, int days)
        {
            HttpCookie hc = HttpContext.Current.Request.Cookies.Get(cname);

            if (hc == null)
            {
                hc = new HttpCookie(cname);
            }
            hc.Expires = DateTime.Now.AddDays(days);
            hc.Value = values;
            if (!string.IsNullOrEmpty(domain))
                hc.Domain = domain;
            HttpContext.Current.Response.Cookies.Add(hc);
        }
        /// <summary>
        /// 给Cookies赋值
        /// </summary>
        /// <param name="cname"></param>
        /// <param name="values"></param>
        public static void SetCookie(string cname, string values)
        {
            HttpCookie hc = HttpContext.Current.Request.Cookies.Get(cname);
            if (hc == null)
            {
                hc = new HttpCookie(cname.ToString());
                hc.Expires = DateTime.Now.AddDays(14);
                hc.Value = values;
                if (!string.IsNullOrEmpty(domain))
                    hc.Domain = domain;
                HttpContext.Current.Response.Cookies.Add(hc);
            }
            else
            {
                hc = new HttpCookie(cname);
                hc.Expires = DateTime.Now.AddDays(14);
                hc.Value = values;
                if (!string.IsNullOrEmpty(domain))
                    hc.Domain = domain;
                HttpContext.Current.Response.Cookies.Set(hc);
            }
        }

        /// <summary>
        /// 写入cookies默认14天时间 (两周)[默认不加密]
        /// </summary>
        /// <param name="cname">cookies名称</param>
        /// <param name="values">cookies值</param>
        public static void InnerCookie(string cname, string values)
        {
            HttpCookie hc = HttpContext.Current.Request.Cookies.Get(cname);

            if (hc == null)
            {
                hc = new HttpCookie(cname);
            }
            hc.Expires = DateTime.Now.AddDays(14);
            hc.Value = values;
            if (!string.IsNullOrEmpty(domain))
                hc.Domain = domain;
            HttpContext.Current.Response.Cookies.Add(hc);
        }
        #endregion

        #region 不解密读取cookies
        /// <summary>
        /// 通过cookies的名称获取cookies的值[默认不解密]
        /// </summary>
        /// <param name="cname"></param>
        /// <returns></returns>
        public static string GetCookieValue(string cname)
        {
            try
            {
                HttpCookie hc = HttpContext.Current.Request.Cookies.Get(cname);
                if (hc == null)
                {
                    return string.Empty;
                }
                else
                {
                    return hc.Value;
                }
            }
            catch
            {
                return null;
            }
        }
        #endregion

        #region 删除cookies
        /// <summary>
        /// 删除 指定 cookies
        /// </summary>
        /// <param name="cname">cookies的名称</param>
        /// <returns></returns>
        public static void DelCookiesByName(string cname)
        {
            HttpCookie myCookie = HttpContext.Current.Request.Cookies[cname];
            if (myCookie != null)
            {
                myCookie.Expires = DateTime.Now.AddDays(-14);
                myCookie.Value = null;
                myCookie.Domain = domain;
                HttpContext.Current.Response.Cookies.Add(myCookie);
            }
            else
            {
                myCookie = new HttpCookie(cname);
                myCookie.Expires = DateTime.Now.AddDays(-14);
                myCookie.Value = null;
                myCookie.Domain = domain;
                HttpContext.Current.Response.Cookies.Add(myCookie);
            }
        }
        #endregion


        #region session的读取和添加删除
        /// 添加Session，调动有效期默认为23分钟  
        /// <summary>  
        /// 添加Session，调动有效期默认为23分钟  
        /// </summary>  
        /// <param name="strSessionName">Session对象名称</param>  
        /// <param name="strValue">Session值</param>  
        public static void AddSession(string strSessionName, string strValue)
        {
            HttpContext.Current.Session[strSessionName] = strValue;
            HttpContext.Current.Session.Timeout = 23;
        }
        /// 添加Session  
        /// <summary>  
        /// 添加Session  
        /// </summary>  
        /// <param name="strSessionName">Session对象名称</param>  
        /// <param name="strValue">Session值</param>  
        /// <param name="iExpires">调动有效期（分钟）</param>  
        public static void AddSession(string strSessionName, string strValue, int Timeout)
        {
            HttpContext.Current.Session[strSessionName] = strValue;
            HttpContext.Current.Session.Timeout = Timeout;
        }

        /// 读取某个Session对象值  
        /// <summary>  
        /// 读取某个Session对象值  
        /// </summary>  
        /// <param name="strSessionName">Session对象名称</param>  
        /// <returns>Session对象值</returns>  
        public static string GetSession(string strSessionName)
        {
            if (HttpContext.Current.Session[strSessionName] == null)
            {
                return null;
            }
            else
            {
                return HttpContext.Current.Session[strSessionName].ToString();
            }
        }

        /// <summary>
        /// 读取某个Session对象值数组
        /// </summary>
        /// <param name="strSessionName">Session对象名称</param>
        /// <returns>Session对象值数组</returns>
        public static string[] GetsSession(string strSessionName)
        {
            if (HttpContext.Current.Session[strSessionName] == null)
            {
                return null;
            }
            else
            {
                return (string[])HttpContext.Current.Session[strSessionName];
            }
        }



        /// 删除某个Session对象  
        /// <summary>  
        /// 删除某个Session对象  
        /// </summary>  
        /// <param name="strSessionName">Session对象名称</param>  
        public static void DelSession(string strSessionName)
        {
            HttpContext.Current.Session[strSessionName] = null;
        }
        /// <summary>
        /// 清空所有Session对象
        /// </summary>
        public static void DelAllSession()
        {
            HttpContext.Current.Session.Abandon();
        }
        #endregion

        #region 操作cache类

        /// Cache操作类
        /// <summary>
        /// Cache操作类
        /// </summary>
        public static class CacheCustom
        {
            /// 简单创建/修改Cache，前提是这个值是字符串形式的
            /// <summary>
            /// 简单创建/修改Cache，前提是这个值是字符串形式的
            /// </summary>
            /// <param name="strCacheName">Cache名称</param>
            /// <param name="strValue">Cache值</param>
            /// <param name="iExpires">有效期，秒数（使用的是当前时间+秒数得到一个绝对到期值）</param>
            /// <param name="priority">保留优先级，1最不会被清除，6最容易被内存管理清除（1:NotRemovable；2:High；3:AboveNormal；4:Normal；5:BelowNormal；6:Low）</param>
            public static void InsertCache(string strCacheName, string strValue, int iExpires, int priority)
            {
                TimeSpan ts = new TimeSpan(0, 0, iExpires);
                CacheItemPriority cachePriority;
                switch (priority)
                {
                    case 6:
                        cachePriority = CacheItemPriority.Low;
                        break;
                    case 5:
                        cachePriority = CacheItemPriority.BelowNormal;
                        break;
                    case 4:
                        cachePriority = CacheItemPriority.Normal;
                        break;
                    case 3:
                        cachePriority = CacheItemPriority.AboveNormal;
                        break;
                    case 2:
                        cachePriority = CacheItemPriority.High;
                        break;
                    case 1:
                        cachePriority = CacheItemPriority.NotRemovable;
                        break;
                    default:
                        cachePriority = CacheItemPriority.Default;
                        break;
                }
                HttpContext.Current.Cache.Insert(strCacheName, strValue, null, DateTime.Now.Add(ts), System.Web.Caching.Cache.NoSlidingExpiration, cachePriority, null);
            }

            /// 简单读书Cache对象的值，前提是这个值是字符串形式的
            /// <summary>
            /// 简单读书Cache对象的值，前提是这个值是字符串形式的
            /// </summary>
            /// <param name="strCacheName">Cache名称</param>
            /// <returns>Cache字符串值</returns>
            public static string GetCache(string strCacheName)
            {
                return HttpContext.Current.Cache[strCacheName].ToString();
            }

            /// 删除Cache对象
            /// <summary>
            /// 删除Cache对象
            /// </summary>
            /// <param name="strCacheName">Cache名称</param>
            public static void DelCache(string strCacheName)
            {
                HttpContext.Current.Cache.Remove(strCacheName);
            }
        }
        #endregion
    }
}