using System;
using System.Text;
using System.IO;
using System.Net;
using System.Data;
using System.Security.Cryptography.X509Certificates;
using System.Net.Security;

namespace FangYar.FYMQTT
{
    public class RemindMessages
    {
        public static string ShortLetterUrl = System.Configuration.ConfigurationManager.AppSettings["ShortLetterUrl"].ToString();

        /// <summary>
        /// 单人发送短信
        /// </summary>
        /// <param name="phone">用户手机号</param>
        /// <param name="templateCode">模版id</param>
        /// <param name="param">这个模版中的参数，根据模版内容进行替换</param>
        public string AloneVerificationCodePush(string phone, string templateCode, string param)
        {
            try
            {
                string param_s = "{\"templateCode\":\"" + templateCode + "\",\"phone\":[\"" + phone + "\"],\"param\":" + param + "}";
                return InvokeWebApiPost(ShortLetterUrl, param_s);
            }
            catch (Exception e)
            {
                return "";
            }
        }

        /// <summary>
        /// 调用指定的url以post方式调用，默认超时时间为3000毫秒。
        /// </summary>
        /// <param name="url">待调用链接。</param>
        /// <param name="param">参数列表，格式如 api=value1&arg1=value2</param>
        /// <param name="timeout">超时时间（单位毫秒），默认值为3000。</param>
        /// <returns>执行结果。</returns>
        public static string InvokeWebApiPost(string url, string param, int timeout = 3000)
        {
            System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
            
            var resuleJson = string.Empty;
            var req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "POST";
            req.ContentType = "application/json"; //Defalt
            req.Accept = "accept";

            using (var postStream = new StreamWriter(req.GetRequestStream()))
            {
                postStream.Write(param);
            }

            req.GetResponse();
            return "";

            //System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

            //// 将参数字节化
            //byte[] postData = Encoding.UTF8.GetBytes(param);

            //var resuleJson = string.Empty;
            //var req = (HttpWebRequest)WebRequest.Create(url);
            //req.Method = "POST";
            //req.ContentType = "application/json"; //Defalt
            //req.Accept = "accept";
            //req.ContentLength = postData.Length;
            //using (var postStream = req.GetRequestStream())
            //{
            //    //postStream.Write(param);
            //    //传输字节数据
            //    postStream.Write(postData, 0, postData.Length);
            //}
            //req.GetResponse();
            //return "";
        }

    }
}