using Yi.Framework.Model;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Http;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;
using Yi.Framework.Model.Models;

namespace Yi.Framework.WebCore
{
    public static class CommonExtend
    {
        /// <summary>
        /// 判断是否为异步请求
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        public static bool IsAjaxRequest(this HttpRequest request)
        {
            string header = request.Headers["X-Requested-With"];
            return "XMLHttpRequest".Equals(header);
        }

        /// <summary>
        /// 基于HttpContext,当前鉴权方式解析，获取用户信息
        /// </summary>
        /// <param name="httpContext"></param>
        /// <returns></returns>
        public static user GetCurrentUserInfo(this HttpContext httpContext)
        {
            IEnumerable<Claim> claimlist = httpContext.AuthenticateAsync().Result.Principal.Claims;
       
            Int32.TryParse(claimlist.FirstOrDefault(u => u.Type == "id").Value,out int resId);
            return new user()
            {
                id =resId,
                username = claimlist.FirstOrDefault(u => u.Type == "username").Value ?? "匿名"
            };
        }
    }
}