/*
Author: luistar15, <leo020588 [at] gmail.com>
License: MIT License
Requires: MooTools 1.2 core

Moo(tools) Ro(tating) Ne(ws) changes and autostart: Eol (daniloc@techie.com)
*/

var MooRoNe = new Class({

 initialize: function(params){
  this.items = params.items;
  this.mode = params.mode || 'horizontal';
  this.modes = {horizontal:['left','width'], vertical:['top','height']};
  this.size = params.size || 250;
  this.box = params.box.setStyle(this.modes[this.mode][1],(this.size*this.items.length)+'px');
  this.button_event = params.button_event || 'click';
  this.handle_event = params.handle_event || 'click';
  this.onChange = params.onChange || null;
  this.currentIndex = null;
  this.previousIndex = null;
  this.nextIndex = null;
  this.interval = params.interval || 5000;
  this.autoPlay = params.autoPlay || false;
  this._play = null;
  this.handles = params.handles || null;
  if(this.handles){
   this.addHandleButtons(this.handles);
  }
  this.buttons = {
   previous: [],
   next: [],
   play: [],
   playback: [],
   stop: [],
   playtoggle: []
  };
  if (params.addButtons){
   for (var action in params.addButtons){
    this.addActionButtons(action, $type(params.addButtons[action])=='array' ? params.addButtons[action] : [params.addButtons[action]]);
   }
  }
  this.fx = new Fx.Tween(
   this.box,
   $extend((params.fxOptions || {duration:500,wait:false}), {property:this.modes[this.mode][0]})
  );
  this.change((params.startItem||0), true, true);
 },
 
 addHandleButtons: function(handles){
  for (var i=0; i<handles.length; i++){
   handles[i].addEvent(this.handle_event, this.change.bind(this, [i,true]));
  }
 },

 addActionButtons: function(action, buttons){
  for (var i=0; i<buttons.length; i++){
   switch(action){
    case 'previous': buttons[i].addEvent(this.button_event, this.previous.bind(this, [true])); break;
    case 'next': buttons[i].addEvent(this.button_event, this.next.bind(this, [true])); break;
    case 'playback': buttons[i].addEvent(this.button_event, this.play.bind(this, [this.interval,'previous',false])); break;
    case 'play': buttons[i].addEvent(this.button_event, this.play.bind(this, [this.interval,'next',false])); break;
    case 'playtoggle': buttons[i].addEvent(this.button_event, this.playtoggle.bind(this)); break;
    case 'stop': buttons[i].addEvent(this.button_event, this.stop.bind(this)); break;
   }
   this.buttons[action].push(buttons[i]);
  }
 },

 previous: function(manual){
  this.change((this.currentIndex>0 ? this.currentIndex-1 : this.items.length-1), manual);
 },

 next: function(manual){
  this.change((this.currentIndex<this.items.length-1 ? this.currentIndex+1 : 0), manual);
 },

 play: function(interval, direction, wait){
  this.stop();
  if(!wait){
   this[direction](false);
  }
  this._play = this[direction].periodical(interval, this, [false]);
  this.playing = true;
 },

 playtoggle: function(){
  if (this.playing) {
    this.play(this.interval, 'next', false);
  } else {
    this.stop();
  }
 },

 stop: function(){
  this.playing = $clear(this._play);
 },

 change: function(item, manual, noFx){
  if(item != this.currentIndex){
   this.currentIndex = item;
   this.previousIndex = this.currentIndex + (this.currentIndex>0 ? -1 : this.items.length-1);
   this.nextIndex = this.currentIndex + (this.currentIndex<this.items.length-1 ? 1 : 1-this.items.length);
   if(manual){
    this.stop();
   }
   if(noFx){
    this.fx.cancel().set((this.size*-this.currentIndex)+'px');
   } else {
    this.fx.start(this.size*-this.currentIndex);
   }
   if(manual && this.autoPlay){
    this.play(this.interval, 'next', true);
   }
   if(this.onChange){
    this.onChange(this.items[this.currentIndex] || null, (this.handles && this.handles[this.currentIndex]) ? this.handles[this.currentIndex] : null);
   }
  }
 }

});