using AllBase;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using WxOrder.Framework.Commons;

namespace Work.KJDServer.API
{
	public class KJDServerHttp
	{
		public static async Task<string> PostAsync(string url, string data)
		{
			if (url.StartsWith("/"))
				url = url.Substring(1);
			url = BaseClass.LoginApiUrl + "/wxxd_" + url + "?obj=" + BaseClass.MainPath + "/wxxd_" + url;
			string sign = UserLogin.GetSignaturex();
			data = $"{sign}&{data}";
			return await _postAsync(url, data);
		}
		public static async Task<T> PostAsync<T>(string url, string data) where T : Result, new()
		{
			try
			{
				string result = await PostAsync(url, data);
				return JsonConvert.DeserializeObject<T>(result);
			}
			catch (JsonException)
			{
				return new T { Code = 0, Msg = "数据解析失败" };
			}
			catch (Exception ex)
			{
				return new T { Code = 0, Msg = ex.Message };
			}
		}


		private static async Task<string> _postAsync(string url, string postData, int timeOut = -1)
		{
			HttpWebResponse response = null;
			string result;
			try
			{
				HttpWebRequest request;
				request = (HttpWebRequest)WebRequest.Create(url);

				request.KeepAlive = true;
				request.ContentType = "application/x-www-form-urlencoded; charset=utf-8";
				request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36";
				request.Headers.Set(HttpRequestHeader.AcceptEncoding, "gzip, deflate");
				request.Headers.Set(HttpRequestHeader.AcceptLanguage, "zh-CN,zh;q=0.9");

				request.Method = "POST";
				request.ServicePoint.Expect100Continue = false;

				string body = postData;
				byte[] postBytes = System.Text.Encoding.UTF8.GetBytes(body);
				request.ContentLength = postBytes.Length;
				Stream stream = request.GetRequestStream();
				stream.Write(postBytes, 0, postBytes.Length);
				stream.Close();

				response = (HttpWebResponse)await request.GetResponseAsync();
			}
			catch (WebException ex)
			{
				if (ex.Status == WebExceptionStatus.ProtocolError)
				{
					response = (HttpWebResponse)ex.Response;
					result = ReadResponse(response);
					return result;
				}
				else return ex.Message;
			}
			catch (Exception e)
			{
				if (response != null) response.Close();
				return e.Message;
			}
			result = ReadResponse(response);
			return result;

		}

		public static string ReadResponse(HttpWebResponse response, Encoding encoding = null)
		{
			using (Stream responseStream = response.GetResponseStream())
			{
				Stream streamToRead = responseStream;
				if (response.ContentEncoding.ToLower().Contains("gzip"))
				{
					streamToRead = new GZipStream(streamToRead, CompressionMode.Decompress);
				}
				else if (response.ContentEncoding.ToLower().Contains("deflate"))
				{
					streamToRead = new DeflateStream(streamToRead, CompressionMode.Decompress);
				}
				if (encoding == null) encoding = Encoding.UTF8;
				using (StreamReader streamReader = new StreamReader(streamToRead, encoding))
				{
					return streamReader.ReadToEnd();
				}
			}
		}
	}
}