//-----------------------------------------------------------------------
// <copyright file="HttpRequest.cs" company="BTU/IIT">
//     Company copyright tag.
// </copyright>
// <author>stubbfel</author>
// <sience>10.06.2013</sience>
//----------------------------------------------------------------------using System;
namespace CampusAppWP8ScheduledTaskAgent.Utility
{
    using System;
    using System.Collections.Generic;
    using System.Net;
    using CampusAppWP8ScheduledTaskAgent.Model.Utility;

    /// <summary>
    /// Class realize the access of  restful HttpRequest 
    /// </summary>
    public class HttpRequest
    {
        #region Member

        /// <summary>
        /// BaseAddress of the webClient
        /// </summary>
        private string baseAddress;
        #endregion

        #region Constructor

        /// <summary>
        /// Initializes a new instance of the <see cref="HttpRequest" /> class.
        /// </summary>
        public HttpRequest()
        {
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="HttpRequest" /> class.
        /// </summary>
        /// <param name="apiBaseAddress">the url of the HttpRequest base address</param>
        public HttpRequest(Uri apiBaseAddress)
        {
            this.baseAddress = apiBaseAddress.AbsoluteUri;
        }

        #endregion

        #region Methods
        #region public

        /// <summary>
        /// Method realize the http-get-method resource
        /// </summary>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        public void HttpGet(Uri url, Action<object, DownloadStringCompletedEventArgs> action)
        {
            WebClient client = new WebClient();
            client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(action);
            client.DownloadStringAsync(url);
        }

        /// <summary>Method realize the http-get-method resource.</summary>
        /// <remarks>Stubbfel, 03.09.2013.</remarks>
        /// <param name="url">   Url of the resource.</param>
        /// <param name="action">The action.</param>
        public void HttpGet(Uri url, Action<object, OpenReadCompletedEventArgs> action)
        {
            WebClient client = new WebClient();
            client.OpenReadCompleted += new OpenReadCompletedEventHandler(action);
            client.OpenReadAsync(url);
        }

        /// <summary>
        /// Method create the Url for the http-get-method
        /// </summary>
        /// <param name="parameters"> list of parameters</param>
        /// <returns>absolute API-Url include GetParameter</returns>
        public Uri CreateGetUrl(List<UrlParamModel> parameters)
        {
            string paramterStr = string.Empty;
            string seperator = string.Empty;
            foreach (UrlParamModel parameter in parameters)
            {
                if (string.Empty.Equals(seperator))
                {
                    seperator = parameter.ParamToken;
                }

                paramterStr += parameter.ToString();
            }

            string getUrlStr = this.baseAddress + seperator + paramterStr;
            return new Uri(getUrlStr, UriKind.Absolute);
        }

        /// <summary>
        /// Method realize the http-delete-method
        /// </summary>
        /// <remarks>
        /// is not supported by WebClient
        /// </remarks>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        public void HttpDelete(Uri url, Action<object, DownloadStringCompletedEventArgs> action)
        {
            throw new NotSupportedException();
        }

        /// <summary>
        /// Method realize the http-head-method
        /// </summary>
        /// <remarks>
        /// is not supported by WebClient
        /// </remarks>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        public void HttpHead(Uri url, Action<object, DownloadStringCompletedEventArgs> action)
        {
            throw new NotSupportedException();
        }

        /// <summary>
        /// Method realize the http-options-method
        /// </summary>
        /// <remarks>
        /// is not supported by WebClient
        /// </remarks>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        public void HttpOptions(Uri url, Action<object, DownloadStringCompletedEventArgs> action)
        {
            throw new NotSupportedException();
        }

        /// <summary>
        /// Method realize the http-connect-method
        /// </summary>
        /// <remarks>
        /// is not supported by WebClient
        /// </remarks>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        public void HttpConnect(Uri url, Action<object, DownloadStringCompletedEventArgs> action)
        {
            throw new NotSupportedException();
        }

        /// <summary>
        /// Method realize the http-trace-method
        /// </summary>
        /// <remarks>
        /// is not supported by WebClient
        /// </remarks>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        public void HttpTrace(Uri url, Action<object, DownloadStringCompletedEventArgs> action)
        {
            throw new NotSupportedException();
        }

        /// <summary>
        /// Method realize the http-post-method
        /// </summary>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        /// <param name="postData">Data which are sending via post to the HttpRequest</param>
        public void HttpPost(Uri url, Action<object, UploadStringCompletedEventArgs> action, string postData)
        {
            this.UploadData(url, action, "POST", postData);
        }

        /// <summary>
        /// Method realize the http-put-method
        /// </summary>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        /// <param name="putData">Data which are sending via put to the HttpRequest</param>
        public void HttpPut(Uri url, Action<object, UploadStringCompletedEventArgs> action, string putData)
        {
            this.UploadData(url, action, "PUT", putData);
        }

        /// <summary>
        /// Method realize the http-patch-method
        /// </summary>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        /// <param name="patchData">Data which are sending via patch to the HttpRequest</param>
        public void HttpPatch(Uri url, Action<object, UploadStringCompletedEventArgs> action, string patchData)
        {
            this.UploadData(url, action, "PATCH", patchData);
        }

        #endregion

        #region private

        /// <summary>
        /// Method uploaded Data to the HttpRequest
        /// </summary>
        /// <param name="url">Url of the resource</param>
        /// <param name="action">callback method</param>
        /// <param name="method">name of APIMethod, how the data will be uploaded</param>
        /// <param name="data">Data which are sending to the HttpRequest</param>
        private void UploadData(Uri url, Action<object, UploadStringCompletedEventArgs> action, string method, string data)
        {
            WebClient client = new WebClient();
            client.UploadStringCompleted += new UploadStringCompletedEventHandler(action);
            client.UploadStringAsync(url, method, data);
        }
        #endregion

        #endregion
    }
}