using JWT;
using JWT.Algorithms;
using JWT.Serializers;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Web;

namespace WX.CRM.WEB.Handler
{
    public class JwtHelp
    {

        //私钥  web.config中配置
        //"GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
        private static string secret = ConfigurationManager.AppSettings["Secret"].ToString();

        /// <summary>
        /// 生成JwtToken
        /// </summary>
        /// <param name="payload">不敏感的用户数据</param>
        /// <returns></returns>
        public static string SetJwtEncode(Dictionary<string, object> payload)
        {

            //格式如下
            //var payload = new Dictionary<string, object>
            //{
            //    { "username","admin" },
            //    { "pwd", "claim2-value" }
            //};

            IJwtAlgorithm algorithm = new HMACSHA256Algorithm();
            IJsonSerializer serializer = new JsonNetSerializer();
            IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
            IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder);

            var token = encoder.Encode(payload, secret);
            return token;
        }

        ///// <summary>
        ///// 根据jwtToken  获取实体
        ///// </summary>
        ///// <param name="token">jwtToken</param>
        ///// <returns></returns>
        //public static UserInfo GetJwtDecode(string token)
        //{
        //    IJsonSerializer serializer = new JsonNetSerializer();
        //    IDateTimeProvider provider = new UtcDateTimeProvider();
        //    IJwtValidator validator = new JwtValidator(serializer, provider);
        //    IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
        //    IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder);
        //    var userInfo = decoder.DecodeToObject<UserInfo>(token, secret, verify: true);//token为之前生成的字符串
        //    return userInfo;
        //}
    }
}