using System.IO;
using System.Net;
using System.Text;
using BWP.ABCClient.Exceptions;

namespace BWP.ABCClient
{
	public class Request
	{
		public string Message { get; set; }

		public string Url { get; set; }

		public Encoding RequestEncoding { get; set; }

		public Encoding ResponseEncoding { get; set; }

		public string ProxyIP { get; set; }
		public int ProxyPort { get; set; }

		public string Run()
		{
			ServicePointManager.ServerCertificateValidationCallback = delegate {
			                                                          	return true;
			                                                          };
			var request = (HttpWebRequest)WebRequest.Create(Url);
			if (!string.IsNullOrEmpty(ProxyIP) && ProxyPort != 0) {
				request.Proxy = new WebProxy(ProxyIP, ProxyPort);
			}
			request.Method = "POST";
			request.ProtocolVersion = HttpVersion.Version10;
			request.ContentType = "application/x-www-form-urlencoded";
			byte[] bytes = RequestEncoding.GetBytes(Message);
			request.ContentLength = bytes.Length;
			using (var stream = request.GetRequestStream()) {
				stream.Write(bytes, 0, bytes.Length);
			}

			var response = (HttpWebResponse)request.GetResponse();
			if (response.StatusCode != HttpStatusCode.OK) {
				throw new HttpException("网上支付平台服务暂时停止 " + response.StatusCode);
			}
			using (var responseStream = response.GetResponseStream()) {
				using (var reader = new StreamReader(responseStream, ResponseEncoding)) {
					return reader.ReadToEnd();
				}
			}
		}
	}
}