using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using VueWebCoreApi.Models;

namespace VueWebCoreApi.Tools
{
    public class ChannelActionFilterAttribute: ActionFilterAttribute
    {
        ToMessage mes = new ToMessage();
        RedisHelper redis = new RedisHelper();

        /// <summary>
        /// 在Action执行前执行
        /// </summary>
        /// <param name="context"></param>
        public override void OnActionExecuting(ActionExecutingContext context)
        {
            try
            {
                //var aa = DapperHelper.GetTokenFromRequestHeader();
                var token = context.HttpContext.Request.Headers["Token"].ToString();
                User us = JwtTools.Denocode(token.ToString());
                base.OnActionExecuting(context);
                //如果存在
                if (redis.Get<User>(us.rediskey, 0) !=null)
                {
                    //获取redis中当前用户信息
                    User r_loginUser = redis.Get<User>(us.rediskey, 0);
                    if (token != r_loginUser.token)
                    {
                        mes.code = "303";
                        mes.count = 0;
                        mes.message = "token已过期,请重新登录!";
                        context.Result = new JsonResult(mes);
                    }
                    else 
                    {
                        //重置过期时间
                        redis.KeyExpire(us.rediskey, redis.secondsTimeOut);
                    }
                }
                else //如果redis登录用户中不存在当前用户
                {
                    mes.code = "303";
                    mes.count = 0;
                    mes.message = "登录已超时,请重新登录!";
                    context.Result = new JsonResult(mes);
                }
                // 将过滤器中的值存储在HttpContext.Items中，以便在控制器中访问
                //context.HttpContext.Items.Remove("Token");
                //context.HttpContext.Items["Token"] = token;
            }
            catch (Exception e)
            {
                LogHelper.WriteLog(e);
                mes.code = "303";
                mes.message = e.Message;
                context.Result = new JsonResult(mes);
            }
        }
    }
}