var HelpCursor = View.extend({
	el: "#helpCursor",
	
	active: false,
	
	messages: {
	  start: "Welcome to VValls!  Click one of the tools at right to learn about it.",
	  media: "This is where you pick media to go on the walls.  You can upload media and paste links.",
	  addmedia: "Great, now click a wall to place this image.",
	  resize: "Drag the image to position it, or use the dots to resize.",
	  presets: "These are some basic presets to get you started. Click em! :-)",
	  wallpaper: "Click the wallpaper you want then apply it to the walls. Feel free to upload your own too!",
	  colors: "Use these colors to change the color of the walls, floor, and ceiling.",
	  settings: "This is where you publish your project. Give it a name, hit save, and you'll have a URL you can share with your friends.",
	  builder: "This is a map of your rooms.  Draw new boxes, or move and resize the ones that are there.  Hit ESCAPE to toggle the map.",
	},

  initialize: function(){
		this.helpButton = $('#help-button')
		
		this.helpButton.click(this.toggle.bind(this))
    this.$el.html(this.messages['start'])
  },
  
  toggle: function(){
    this.active ? this.stop() : this.start()
  },
  
  start: function(){
    if (this.active) return
    this.active = true
    this.helpButton.addClass('active')
    this.$el.show()
    this.move({ pageX: -1000, pageY: -10000 })
    this.moveFn = this.move.bind(this)
    document.addEventListener("mousemove", this.moveFn)
  },
  
  stop: function(){
    this.active = false
    this.$el.hide()
    this.helpButton.removeClass('active')
    document.removeEventListener("mousemove", this.moveFn)
  },
  
  offset: 100,
  lastPosition: { pageX: 0, pageY: 0 },
  move: function(e){
    this.el.style.right = clamp(window.innerWidth - e.pageX, this.offset, window.innerWidth) + "px"
    this.el.style.top = e.pageY + "px"
    this.lastPosition = e
  },

  show: function(name){
    if (this.active) {
      this.$el.show()
    }
  },
  hide: function(){
    this.$el.hide()
  },

  message: function(name){
    if (! this.active) return
    if (name == "start" || name == "media" || name == "settings") {
      this.offset = 100
    }
    else if (name == "colors") {
      this.offset = 270
    }
    else {
      this.offset = 290
    }
    this.move(this.lastPosition)
    this.$el.html(this.messages[name])
  },

})