using System;
using System.Web;
using System;
using System.Collections.Generic;
using System.Linq;

namespace BatchService.Framework.Utility
{
    /// <summary>
    /// Cookie帮助类
    /// </summary>
    public class Cookie
    {
        /// <summary>
        /// 取Cookie
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static HttpCookie Get(string name)
        {
            return HttpContext.Current.Request.Cookies[name];
        }

        /// <summary>
        /// 取Cookie值
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static string GetValue(string name)
        {
            var httpCookie = Get(name);
            if (httpCookie != null)
                return httpCookie.Value;
            else 
                return string.Empty;
        }

        /// <summary>
        /// 移除Cookie
        /// </summary>
        /// <param name="name"></param>
        public static void Remove(string name)
        {
            Cookie.Remove(Cookie.Get(name));
        }

        public static void Remove(HttpCookie cookie)
        {
            if (cookie != null)
            {
                cookie.Expires = DateTime.Now;
                Cookie.Save(cookie);
            }
        }

        /// <summary>
        /// 保存Cookie
        /// </summary>
        /// <param name="name"></param>
        /// <param name="value"></param>
        /// <param name="expiresHours"></param>
        public static void Save(string name, string value, int expiresHours = 0)
        {
            var httpCookie = Get(name);
            if (httpCookie == null)
                httpCookie = Set(name);

            httpCookie.Value = value;
            Cookie.Save(httpCookie, expiresHours);
        }


        public static void Save(HttpCookie cookie, int expiresHours = 0)
        {
            //string domain = Fetch.ServerDomain;
            //string urlHost = HttpContext.Current.Request.Url.Host.ToLower();
            //if (domain != urlHost)
            //    cookie.Domain = domain;

            //if (expiresHours > 0)
            //    cookie.Expires = DateTime.Now.AddMinutes(expiresHours);

            //HttpContext.Current.Response.Cookies.Add(cookie);
            Save(new HttpContextWrapper(HttpContext.Current) as HttpContextBase, cookie, expiresHours * 60);
        }

        public static void Save(HttpContextBase context, HttpCookie cookie, int expiresMinutes = 0)
        {
            string domain = Fetch.ServerDomain;
            string urlHost = context.Request.Url.Host.ToLower();
            if (domain != urlHost)
                cookie.Domain = domain;

            if (expiresMinutes > 0)
                cookie.Expires = DateTime.Now.AddMinutes(expiresMinutes);
            
            context.Response.Cookies.Add(cookie);
        }

        public static HttpCookie Set(string name)
        {
            return new HttpCookie(name);
        }

        private static Dictionary<string, string> sessionIdMap = new Dictionary<string, string>();
        private static Dictionary<string, string> loginFailsMap = new Dictionary<string, string>();
       
         
        public static bool isValidUser(string id, bool isLogin=false)
        {
            string sessionId = HttpContext.Current.Session.SessionID;
            if (isLogin)
            { 
                sessionIdMap.Add(sessionId, id);
                return true;
            }
            string historySessionId = sessionIdMap.ContainsKey(sessionId) ? sessionIdMap[sessionId] : "";
            if (id!=historySessionId)
            { 
                return false;
            }
            return true;
        }
        
    }
}