/*
Padma Playlist -
Pass it a jquery object - it will find all a elements within it which are padma links and make them a playlist
eg. var playlist = new PadmaPlaylist($('
*/

(function($) {
  var PadmaPlaylist = window.PadmaPlaylist = function(jq) {
    this.videos = [];
    this.elements = [];
    this.position = 0;
    this.len = function() { return this.elements.length };
    this.jq = jq;
    this.init();
  };

  PadmaPlaylist.prototype.init = function() {
    var that = this;
    var i = 0;
    $('a', that.jq).each(function() {
      var t = $(this);
      var href = t.attr("href");
      if (href.indexOf(padmaConfig.links_url) != -1) {
        that.elements.push(t);
        t.data("playlist", that);
        t.data("inPlaylist", true);
        t.data("playlistPosition", i);
        t.click(function() {
          var playlist = $(this).data("playlist");
          var position = $(this).data("playlistPosition");
          playlist.position = position;
        });
        i++;
      }
    });
  };

  PadmaPlaylist.prototype.next = function() {
    var pos = this.position;
    if (pos < (this.len() - 1)) {
      var nextElem = this.elements[pos + 1];
      nextElem.click();  
    }  
  };

  PadmaPlaylist.prototype.previous = function() {
    var pos = this.position;
    if (pos > 0) {
      var prevElem = this.elements[pos - 1];
      prevElem.click();
    }
  };

})(jQuery);