(function(){ 
    var teleport;
    var portalDestination;
    var animationURL;
    var position;

    function playSound(entityID) {
        print("playing teleport sound");
        if (teleport.downloaded) {
            if(!position) {
                getProps(entityID);
            }
            Audio.playSound(teleport, { position: position, volume: 0.40, localOnly: true });
        }
    };

    function getProps(entityID) {
        var properties = Entities.getEntityProperties(entityID);
        if (properties) {
            animationURL = properties.modelURL;
            position = properties.position;
            portalDestination = properties.userData;
        }
    };
    
    this.preload = function(entityID) {
        print("loading teleport script");
        teleport = SoundCache.getSound("http://s3.amazonaws.com/hifi-public/birarda/teleport.raw");
        getProps(entityID);
    };

    this.enterEntity = function(entityID) {
      // get latest props in case we changed the destination
      getProps(entityID);
      print("enterEntity() .... The portal destination is " + portalDestination);

      if (portalDestination.length > 0) {
        print("Teleporting to hifi://" + portalDestination);
        Window.location = "hifi://" + portalDestination;
      }
      
    }; 
    
    this.leaveEntity = function(entityID) {
      print("leaveEntity() called ....");
      if (!animationURL) {
          getProps(entityID);
      }
      Entities.editEntity(entityID, {
        animation: { url: animationURL, currentFrame: 1, running: false }
      });
      
      playSound(entityID);
    };
    
    this.hoverEnterEntity = function(entityID) {
      print("hoverEnterEntity() called ....");
      if (!animationURL) {
          getProps(entityID);
      }
      Entities.editEntity(entityID, {
        animation: { url: animationURL, fps: 24, firstFrame: 1, lastFrame: 25, currentFrame: 1, running: true, hold: true }
      });
    };

    this.unload = function() {
        print("unloading teleport script");
    };
})