A Pen by Thomas Wiersema.

Headphones Last.fm auto update

Headphones Last.fm auto update
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script.js

var ajaxRequest = {
  /**
   * Flickr URL that will give us lots and lots of whatever we're looking for.
   *
   * See http://www.flickr.com/services/api/flickr.photos.search.html for
   * details about the construction of this URL.
   *
   * @type {string}
   * @private
   */
  
  limit : 1,
  lastfm_url : "http://ws.audioscrobbler.com/2.0/?method=library.getartists&api_key=42d6d83c5046d8db9f97475b3ab169da&user=thomx12&format=json&limit=",
  hp_find_url: "http://musicbrainz.org/ws/2/artist?fmt=json&query=",
  hp_add_url: "http://alarmpi:9091/api?apikey=4f9bfafa41775ec9ca62d9dae0e9b7ca&cmd=addArtist&id=",
  hp_index_url: "http://alarmpi:9091/api?apikey=4f9bfafa41775ec9ca62d9dae0e9b7ca&cmd=getIndex",
  artistList : undefined,
  process: function(data) 
  {
    console.log(data);
    ajaxRequest.request(ajaxRequest.hp_index_url, function(artistList) 
    {
      ajaxRequest.artistList = artistList;
      ajaxRequest.recursiveAdd(data.artists.artist, 0);   
    });
    
  },
  
  recursiveAdd:  function(data, index) {
    if(index >= data.length) {
      document.write("<p>done!</p>");
      return;
    }
    if(ajaxRequest.isNotAlreadyAdded(ajaxRequest.artistList, data[index].mbid)) {
          
      ajaxRequest.request(ajaxRequest.hp_add_url + data[index].mbid, function() 
      {
        document.write("<p style='color: green'>toegevoegd: " + data[index].name + "</p>" );
        console.log("added. adding next in line..");
        ajaxRequest.recursiveAdd(data, index + 1);
      });
          
    } else {
          document.write("<p style='color: cyan'>is al eerder toegevoegd: " + data[index].name + "</p>" );
          ajaxRequest.recursiveAdd(data, index + 1);
    }
    
  },
  
  /**
   * Sends an XHR GET request to grab photos of lots and lots of kittens. The
   * XHR's 'onload' event is hooks up to the 'showPhotos_' method.
   *
   * @public
   */
  request: function(url, callback) {
    $.ajax({
      type : 'GET',
      url  : url,
      dataType : 'jsonp',
    }).success(callback)
    .error(function (data) { console.log("fout, url: " + url); console.log(data);})
    .done(function(data) { console.log(data)});
  },

  xhrRequest: function(url, callback) {
    var req = new XMLHttpRequest();
    req.open("GET", url, true);
    req.onload = callback.bind(this);
    req.send(null);
  },
  
  isNotAlreadyAdded: function(haystack, needle) {
    for(var index in haystack) {
      if(needle == haystack[index].ArtistID) 
        return false;
      
    }
    return true;
  }
  
};
ajaxRequest.request(ajaxRequest.lastfm_url + "0", ajaxRequest.process);