ProgressHandler.cs

﻿using SendSpace.Interface;
using SendSpace.Responses;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Serialization;

namespace SendSpace
{
    public class ProgressHandler : Handler
    {
        #region PRIVATE

        private Exception error = null;

        #endregion

        #region EVENTS

        public event EventHandler<Progress> Progress;
        public event EventHandler<Exception> Error;

        #endregion

        #region PROPERTY

        /// <summary>
        /// Request stream
        /// </summary>
        private Stream requestStream = null;
        public Stream RequestStream
        {
            get
            {
                return requestStream;
            }
            set
            {
                requestStream = value;
            }
        }

        /// <summary>
        /// Web reponse
        /// </summary>
        private WebResponse response = null;
        public WebResponse Response
        {
            get
            {
                return response;
            }
            set
            {
                response = value;
            }
        }

        #endregion

        /// <summary>
        /// Progress handler
        /// </summary>
        public ProgressHandler()
        {
        }

        #region PRIVATE

        /// <summary>
        /// Process response
        /// </summary>
        private void processResponse()
        {
            XmlSerializer xml = null;
            Stream stream = this.Response.GetResponseStream();
            XmlReader reader = XmlReader.Create(stream);

            //for: UploadDone
            xml = new XmlSerializer(typeof(Progress));
            if (xml.CanDeserialize(reader))
            {
                Progress progressInfo = (Progress)xml.Deserialize(reader);
                if (Progress != null)
                {
                    Progress.Invoke(this, progressInfo);
                }
            }
        }

        #endregion

        #region INTERFACE METHODS

        /// <summary>
        /// Get response
        /// </summary>
        /// <returns></returns>
        public WebResponse GetResponse()
        {
            return this.Response;
        }

        /// <summary>
        /// Get request stream
        /// </summary>
        /// <returns></returns>
        public Stream GetRequestStream()
        {
            return this.RequestStream;
        }

        /// <summary>
        /// Set reponse
        /// </summary>
        /// <param name="response"></param>
        /// <returns></returns>
        public async Task SetResponse(WebResponse response)
        {
            this.Response = response;
            this.processResponse();
        }

        /// <summary>
        /// Set request stream
        /// </summary>
        /// <param name="stream"></param>
        /// <returns></returns>
        public async Task SetRequestStream(Stream stream)
        {
            this.RequestStream = stream;
        }

        /// <summary>
        /// Get boundary
        /// </summary>
        /// <returns></returns>
        public string GetBoundary()
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// Set boudnary
        /// </summary>
        /// <param name="boundary"></param>
        public void SetBoundary(string boundary)
        {
            throw new NotImplementedException();
        }


        /// <summary>
        /// Get error
        /// </summary>
        /// <returns></returns>
        public Exception GetError()
        {
            return this.error;
        }

        /// <summary>
        /// Set error
        /// </summary>
        /// <param name="error"></param>
        public void SetError(Exception error)
        {
            this.error = error;

            //callback
            if (Error != null)
            {
                Error.Invoke(this, error);
            }
        }

        #endregion
    }
}