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/*
 * Zuse - A Zune Last.fm plugin
 * Copyright (C) 2007-2008 Zachary Howe
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Windows.Forms;
using System.IO;
using System.Net;

using Zuse.Scrobbler;
using Zuse.Utilities;

namespace Zuse.Core
{
    class ZuneCatcher
    {
        private const string TemporaryZuneXML = "tmp_zuneprofile.xml";

        private string username;
        private string url;

        public ZuneCatcher(string username)
        {
            this.username = username;
            this.url = "http://origin-zcards.zune.net/zcard/usercardservice.ashx/src/external/?zunetag=" + username;
        }

        public SongCollection FetchSongs()
        {
            return this.FetchSongs(false);
        }

        public SongCollection FetchSongs(bool test)
        {
            DateTime now = TimeZone.CurrentTimeZone.ToLocalTime(DateTime.UtcNow);
            SongCollection songs = new SongCollection();

            try
            {
                XmlReader reader = XmlReader.Create(this.FetchProfile(string.Format("http://origin-zcards.zune.net/zcard/usercardservice.ashx/src/external/?zunetag={0:s}&MMplayerType=PlugIn", this.username)));
                XmlDocument doc = new XmlDocument();
                doc.Load(reader);

                XmlElement el = null;

                foreach (XmlElement x in doc.GetElementsByTagName("playlist"))
                {
                    if (x.GetAttribute("type") == "recent_spins")
                    {
                        el = x;
                        break;
                    }
                }

                foreach (XmlElement x in el.GetElementsByTagName("track"))
                {
                    Song song = new Song();

                    XmlNodeList els = x.GetElementsByTagName("label");
                    song.Title = els[0].InnerText;
                    song.Album = els[1].InnerText;
                    song.Artist = els[2].InnerText;

                    if (!test)
                    {
                        song.FetchSongLength();

                        TimeSpan songLength = new TimeSpan(0, 0, song.Length);

                        song.ExtraInfo.TimePlayed = now;
                        now -= songLength;
                    }

                    songs.Add(song);
                }

                reader.Close();
            }
            catch (Exception e)
            {
                Console.Error.WriteLine(e.Message);
                return null;
            }

            return songs;
        }

        public Stream FetchProfile(string url)
        {
            WebRequest webRequest = WebRequest.Create(url);
            webRequest.Method = "GET";
            webRequest.ConnectionGroupName = "keep-alive";

            webRequest.Headers.Add("Host", "social.zune.net");
            webRequest.Headers.Add("Accept", "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5");
            webRequest.Headers.Add("Cache-Control", "max-age=0");
            webRequest.Headers.Add("Keep-Alive", "300");
            webRequest.Headers.Add("Referer", "http://social.zune.net/member/" + this.username);
            webRequest.Headers.Add("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13");
            webRequest.Headers.Add("Cookie", "WT_FPC=id=24.209.95.160-584720416.29921779:lv=1207177958782:ss=1207174281128");
            webRequest.Headers.Add("If-Modified-Since", "Fri, 08 Feb 2008 01:00:52 GMT");
            webRequest.Headers.Add("If-None-Match", "\"d4d51cdee69c81:19a8\"");
            webRequest.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
            webRequest.Headers.Add("Accept-Encoding", "gzip,deflate");
            webRequest.Headers.Add("Accept-Language", "en-us,en;q=0.5");

            try
            {
                WebResponse webResponse = webRequest.GetResponse();
                return webResponse.GetResponseStream();
            }
            catch (Exception e)
            {
                Console.Error.WriteLine(e.Message);
                return null;
            }
        }
    }
}