using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Reflection.Emit;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace Gather.Common.Util
{
    /// <summary>
    /// 接口状态码
    /// </summary>
    public enum APICode
    {
        /// <summary>
        /// 成功
        /// </summary>
        Success = 200,
        /// <summary>
        /// 失败
        /// </summary>
        Fail = 500,
        /// <summary>
        /// token失效
        /// </summary>
        TokenFail
    }

    /// <summary>
    /// 工具类
    /// </summary>
    public class Tool
    {
        /// <summary>
        /// 获取带状态码的JSON字符串
        /// </summary>
        /// <param name="code"></param>
        /// <param name="dataObj"></param>
        /// <returns></returns>
        public static object GetJsonWithCode(APICode code, object dataObj)
        {
            return new { code = (int)code, msg = code.ToString(), data = dataObj };
        }

        /// <summary>
        /// Get请求
        /// </summary>
        /// <param name="post_url">请求地址</param>
        /// <returns></returns>
        public static string get_page(string post_url)
        {
            Stream instream = null;
            StreamReader sr = null;
            HttpWebResponse response = null;
            HttpWebRequest request = null;
            Encoding encoding = Encoding.UTF8;
            // 准备请求...
            try
            {
                // 设置参数
                request = WebRequest.Create(post_url) as HttpWebRequest;
                CookieContainer cookieContainer = new CookieContainer();
                request.CookieContainer = cookieContainer;
                request.AllowAutoRedirect = true;
                request.Timeout = 10000;
                //默认值TimeOut：100 秒
                //发送请求并获取相应回应数据
                response = request.GetResponse() as HttpWebResponse;
                //直到request.GetResponse()程序才开始向目标网页发送Post请求
                instream = response.GetResponseStream();
                sr = new StreamReader(instream, encoding);
                //返回结果网页（html）代码
                string content = sr.ReadToEnd();
                string err = string.Empty;
                return content;
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }
    }
}