using Hanhe.iWCS.Common;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
 

namespace Hanhe.iWCS.ZheJiangHuaKaiProtocol
{
	public class WebApiHelper {
		public string WebPost(string url, string postData, string cotentType = "application/json") {
			WebRequest request = WebRequest.Create(url);
			request.Method = "POST";
			//string postData = JsonConvert.SerializeObject(data); ;
			byte[] byteArray = Encoding.UTF8.GetBytes(postData);
			request.ContentType = cotentType;
			request.ContentLength = byteArray.Length;

			try {
				Stream dataStream = request.GetRequestStream();
				dataStream.Write(byteArray, 0, byteArray.Length);
				dataStream.Close();
				WebResponse response = request.GetResponse();
				//Console.WriteLine(((HttpWebResponse)response).StatusDescription);
				dataStream = response.GetResponseStream();
				StreamReader reader = new StreamReader(dataStream, Encoding.UTF8);
				string responseFromServer = reader.ReadToEnd();
				reader.Close();
				dataStream.Close();
				response.Close();

				return responseFromServer;
			}
			catch (Exception e) {
				CMMLog.Error(e.Message, e);
				return "";
			}
		}
		public string PostWithCookie(string url, string postData, string contentType = "application/json", string sessionId = "") {
			HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
			request.Method = "POST";
			byte[] byteArray = Encoding.UTF8.GetBytes(postData);
			request.ContentType = contentType;
			request.ContentLength = byteArray.Length;
			if (sessionId != "") {
				request.CookieContainer = new CookieContainer();
				request.CookieContainer.SetCookies(new Uri("http://" + request.RequestUri.Authority), "ASP.NET_SessionId=" + sessionId);
			}
			StreamReader reader = null;
			Stream stream = null;
			WebResponse rsp = null;
			try {
				stream = request.GetRequestStream();
				stream.Write(byteArray, 0, byteArray.Length);
				stream.Close();
				rsp = request.GetResponse();
				stream = rsp.GetResponseStream();
				reader = new StreamReader(stream);
				return reader.ReadToEnd();
			}
			catch {
				return "";
			}
			finally {
				// 释放资源
				if (reader != null) reader.Close();
				if (stream != null) stream.Close();
				if (rsp != null) rsp.Close();
			}

		}
		public string WebGet(string url) {
			WebRequest request = WebRequest.Create(url);
			request.Method = "GET";

			try {
				WebResponse response = request.GetResponse();
				Console.WriteLine(((HttpWebResponse)response).StatusDescription);
				Stream dataStream = response.GetResponseStream();
				StreamReader reader = new StreamReader(dataStream);
				string responseFromServer = reader.ReadToEnd();

				reader.Close();
				dataStream.Close();
				response.Close();

				return responseFromServer;
			}
			catch (Exception e) {
				CMMLog.Error(e.Message, e);
				return "";
			}
		}
	}
}