using Common.Config;
using Common.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Primitives;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
//using Liger.Common;

namespace LigerRM.Common
{
    /// <summary>
    /// 不支持 cookie values
    /// </summary>
    public class SsoTokenHelper
    {
        public static string getStaff(string staffId, string key)
        {
            Guid id;

            if (string.IsNullOrEmpty(staffId))
            {
                HttpRequest request = MyHttpContext.Current.Request;
                StringValues oo;
                request.Headers.TryGetValue("Sso-Token", out oo);
                if (oo.Count > 0 && oo.ToArray()[0] != "")
                {
                    staffId = oo.ToArray()[0];
                }
            }
            //判断参数是否合法
            if (!string.IsNullOrEmpty(staffId) && Guid.TryParse(staffId, out id))
            {
                Object signtoken;
                MyHttpContext.Cache.TryGetValue(id.ToString(), out signtoken);
                var payload = new Dictionary<string, object>()
                {
                    //{ "userid", userid },
                    //{ "roleid", roleid },
                    //{ "permission", permission }
                };
                var secretKey = TokenConfig.SecretKey;
                if (signtoken != null)
                {
                    payload = Jwt.JsonWebToken.DecodeToObject((string)signtoken, secretKey);
                }
                else
                {
                    return null;
                }
                Object userid;
                payload.TryGetValue(key, out userid);
                return userid == null ? null : userid.ToString();
            }
            else
            {
                return null;
            }
        }
        public static string setStaff(string key,string value, DateTime? Expire = null,string staffId = null)
        {
            Guid id;

            if (string.IsNullOrEmpty(staffId))
            {
                HttpRequest request = MyHttpContext.Current.Request;
                StringValues oo;
                request.Headers.TryGetValue("Sso-Token", out oo);
                if (oo.Count > 0 && oo.ToArray()[0] != "")
                {
                    staffId = oo.ToArray()[0];
                }
            }
            //判断参数是否合法
            if (!string.IsNullOrEmpty(staffId) && Guid.TryParse(staffId, out id))
            {
                Object signtoken;
                MyHttpContext.Cache.TryGetValue(id.ToString(), out signtoken);
                var payload = new Dictionary<string, object>()
                {
                    //{ "userid", userid },
                    //{ "roleid", roleid },
                    //{ "permission", permission }
                };
                var secretKey = TokenConfig.SecretKey;
                if (signtoken != null)
                {
                    payload = Jwt.JsonWebToken.DecodeToObject((string)signtoken, secretKey);
                }
                else
                {
                    return null;
                }
                Object userid;
                payload.Remove(key, out userid);

                payload.Add(key,value);
                
                string SignToken = Jwt.JsonWebToken.Encode(payload, secretKey, Jwt.JwtHashAlgorithm.HS256);
                
                var ExpireTime = Expire != null? Expire.Value: DateTime.Now.AddSeconds(TokenConfig.ExpireTime);

                ((MemoryCache)MyHttpContext.Cache).GetOrCreate(staffId, entry =>
                {
                    entry.SetAbsoluteExpiration(ExpireTime);
                    return SignToken;
                });

                return userid == null ? null : userid.ToString();
            }
            else
            {
                return null;
            }
        }
        public static void RemoveStaff(string key, string staffId = null)
        {
            Guid id;

            if (string.IsNullOrEmpty(staffId))
            {
                HttpRequest request = MyHttpContext.Current.Request;
                StringValues oo;
                request.Headers.TryGetValue("Sso-Token", out oo);
                if (oo.Count > 0 && oo.ToArray()[0] != "")
                {
                    staffId = oo.ToArray()[0];
                }
            }
            //判断参数是否合法
            if (!string.IsNullOrEmpty(staffId) && Guid.TryParse(staffId, out id))
            {
                MyHttpContext.Cache.Remove(staffId);
            }
        }

        public static string getStaff(string key)
        {
            StringValues oo = MyHttpContext.Current.Request.Headers["Sso-Token"];
            string staffid = "";
            if (oo.Count > 0 && oo.ToArray()[0] != "")
            {
                staffid = oo.ToArray()[0];
            }
            if (staffid != "")
                return getStaff(staffid, key);
            else
                return null;
        }

        #region 获取Token

        /// <summary> 
        /// 获得Cookie的值 
        /// </summary> 
        /// <param name="tokenName"></param> 
        /// <returns></returns> 
        public static string GetTokenValue(string tokenName)
        {
            return getStaff(tokenName);
        }

        /// <summary> 
        /// 获得Cookie的值 
        /// </summary> 
        /// <param name="cookie"></param> 
        /// <returns></returns> 
        //public static string GetCookieValue(HttpCookie cookie)
        //{
        //    if (cookie != null)
        //    {
        //        return cookie.Value;
        //    }
        //    return "";
        //}

        /// <summary> 
        /// 获得Cookie 
        /// </summary> 
        /// <param name="tokenName"></param> 
        /// <returns></returns> 
        public static string GetToken(string tokenName)
        {
            return getStaff(tokenName);
        }

        #endregion

        #region 删除Cookie


        /// <summary> 
        /// 删除Cookie
        /// </summary> 
        /// <param name="tokenName"></param> 
        public static void RemoveToken(string tokenName)
        {
            RemoveStaff(tokenName);
        }

        #endregion

        #region 设置/修改Cookie
         

        /// <summary> 
        /// 设置Cookie 
        /// </summary> 
        /// <param name="tokenName"></param> 
        /// <param name="key"></param> 
        /// <param name="value"></param> 
        /// <param name="expires"></param> 
        public static void SetToken(string tokenName, string value, DateTime? expires)
        {
            //Guard.IsNotNullOrEmpty(tokenName, "tokenName"); 
            setStaff(tokenName, value);

        }

        #endregion

        #region 添加Cookie



        /// <summary> 
        /// 添加为Cookie.Values集合 
        /// </summary> 
        /// <param name="tokenName"></param> 
        /// <param name="key"></param> 
        /// <param name="value"></param> 
        /// <param name="expires"></param> 
        public static void AddToken(string tokenName, string value, DateTime expires)
        {
            //Guard.IsNotNullOrEmpty(tokenName, "tokenName");

            //HttpCookie cookie = new HttpCookie(tokenName);
            //cookie.Expires = expires;
            //cookie.Value = value;
            //AddCookie(cookie);

            setStaff(tokenName, value, expires);
        }

        /// <summary> 
        /// 添加Cookie 
        /// </summary> 
        /// <param name="cookie"></param> 
        //public static void AddCookie(HttpCookie cookie)
        //{
        //    HttpResponse response = MyHttpContext.Current.Response;
        //    if (response != null)
        //    {
        //        //指定客户端脚本是否可以访问[默认为false] 
        //        cookie.HttpOnly = true;
        //        //指定统一的Path，比便能通存通取 
        //        cookie.Path = "/";
        //        //设置跨域,这样在其它二级域名下就都可以访问到了 
        //        //cookie.Domain = "nas.com"; 
        //        response.AppendCookie(cookie);
        //    }
        //}

        #endregion
    }
    
}