var Status = can.Model.extend({

  findOne: 'GET /api/status'

}, {

  init: function() {
    server.eventSource.addEventListener('message', this.updateStatus.bind(this));
  },

  updateStatus: function(event) {
    var response = JSON.parse(event.data);
      switch (response.type) {
        case 'status':
          this.attr(response.data);
          break;
        case 'time':
          this.attr('time', response.data);
          break;
      }
  },

  playing: function() {
    return this.attr('state') === 'play'
  },

  playingOrPaused: function() {
    return (this.attr('state') === 'play' || this.attr('state') === 'pause');
  },

  showTrackProgress: can.compute(function() {
    return (this.playingOrPaused() && this.attr('time') != undefined);
  }),

  formattedElapsedTime: function() {
    if (this.attr('time') != undefined) {
      return timeHelpers.formatLength(this.attr('time')[0])
    }
  },

  formattedTotalTime: function() {
    if (this.attr('time') != undefined) {
      return timeHelpers.formatLength(this.attr('time')[1])
    }
  },

  markerPosition: function() {
    return (this.attr('time')[0] / this.attr('time')[1]) * 100
  }

});