/*-------------------------------------------------------------------------
 * 功能描述：HttpUtils
 * 作者：xulisong
 * 创建时间： 2019/7/29 10:16:56
 * 版本号：v1.0
 *  -------------------------------------------------------------------------*/

using System;
using System.Diagnostics;
using System.IO;
using System.Net.Http;
using MBIRevitBase.Result;
using SAGA.DotNetUtils.Logger;

namespace MBIRevitBase.Tools
{
    /// <summary>
    /// HttpUtils信息处理
    /// </summary>
    public class HttpUtils
    {
        private static HttpClient m_Client;
        /// <summary>
        /// 创建HttpClient,单例对象生成
        /// </summary>
        /// <returns></returns>
        public static HttpClient CreateClient()
        {
            //if (m_Client == null)
            {
                m_Client = new HttpClient();
            }
            return m_Client;
        }
        public const string WebKitFormBoundary = "----WebKitFormBoundary";
        public static BResult PostFormDataFile(string url, Stream stream)
        {
            using (HttpClient client = CreateClient())
            {
                string boundary = string.Format("{0}{1}", WebKitFormBoundary, DateTime.Now.Ticks.ToString("x"));
                MultipartFormDataContent content = new MultipartFormDataContent(boundary);
                #region Stream请求
                var streamContent = new StreamContent(stream);
                //"file.zip"必须有，它的格式可能影响到内部的一些配置
                content.Add(streamContent, "file", "file.zip");
                #endregion
                var result = client.PostAsync(url, content).Result;
                try
                {
                    if (result.IsSuccessStatusCode)
                    {
                        string rslt = result.Content.ReadAsStringAsync().Result;
                        return new BResult(true, rslt);
                    }
                    else
                    {
                        return result.ToString();
                    }
                }
                finally
                {
                    client.Dispose();
                }
            }
            return string.Empty;

        }
        /// <summary>
        /// 上传失败抛出异常，进行重试
        /// </summary>
        /// <param name="url"></param>
        /// <param name="stream"></param>
        /// <returns></returns>
        public static BResult PostFormDataFileThrowException(string url, Stream stream)
        {
            BResult rslt= (BResult)string.Empty;
            using (HttpClient client = CreateClient())
            {
                try
                {
                    //超时时间设置为30分钟
                    client.Timeout = new TimeSpan(0, 30, 0);
                    string boundary = string.Format("{0}{1}", WebKitFormBoundary, DateTime.Now.Ticks.ToString("x"));
                    MultipartFormDataContent content = new MultipartFormDataContent(boundary);

                    #region Stream请求

                    var streamContent = new StreamContent(stream);
                    //"file.zip"必须有，它的格式可能影响到内部的一些配置
                    content.Add(streamContent, "file", "file.zip");

                    #endregion
                    Log4Net.Debug("UploadStart");
                    var tt = client.PostAsync(url, content);
                    Log4Net.Debug("UploadEnd ");
                    var result = tt.Result;
     
                    Log4Net.Debug("UploadEnd "+ result.IsSuccessStatusCode);
                    if (result.IsSuccessStatusCode)
                    {
                        rslt = (HttpResult) result.Content.ReadAsStringAsync().Result;
                    }
                    else
                    {
                        throw new Exception(result.ToString());
                    }
                }
                catch (Exception e)
                {
                    Log4Net.Debug("Upload Exception ");
                    throw new Exception(e.ToString());
                }
                finally
                {
                    Log4Net.Debug("Upload finally ");
                    client.Dispose();
                }
            }

            return rslt;

        }
    }
}