/*
Author:
	luistar15, <leo020588 [at] gmail.com>
License:
	MIT License
 
Class
	noobSlide (rev.19-06-08)

Arguments:
	Parameters - see Parameters below

Parameters:
	box: dom element | required
	items: dom collection | required
	size: int | item size (px) | default: 240
	mode: string | 'horizontal', 'vertical' | default: 'horizontal'
	addButtons:{
		previous: single dom element OR dom collection| default: null
		next:  single dom element OR dom collection | default: null
		play:  single dom element OR dom collection | default: null
		playback:  single dom element OR dom collection | default: null
		stop:  single dom element OR dom collection | default: null
	}
	button_event: string | event type | default: 'click'
	handles: dom collection | default: null
	handle_event: string | event type| default: 'click'
	fxOptions: object | Fx.Tween options | default: {duration:500,wait:false}
	interval: int | for periodical | default: 5000
	autoPlay: boolean | default: false
	onWalk: event | pass arguments: currentItem, currentHandle | default: null
	startItem: int | default: 0

Properties:
	box: dom element
	items: dom collection
	size: int
	mode: string
	buttons: object
	button_event: string
	handles: dom collection
	handle_event: string
	previousIndex: int
	nextIndex: int
	fx: Fx.Tween instance
	interval: int
	autoPlay: boolean
	onWalk: function
	
Methods:
	previous(manual): walk to previous item
		manual: bolean | default:false
	next(manual): walk to next item
		manual: bolean | default:false
	play (interval,direction,wait): auto walk items
		interval: int | required
		direction: string | "previous" or "next" | required
		wait: boolean | required
	stop(): stop auto walk
	walk(item,manual,noFx): walk to item
		item: int | required
		manual: bolean | default:false
		noFx: boolean | default:false
	addHandleButtons(handles):
		handles: dom collection | required
	addActionButtons(action,buttons):
		action: string | "previous", "next", "play", "playback", "stop" | required
		buttons: dom collection | required

Requires:
	mootools 1.2 core
*/
var noobSlide = new Class({

	initialize: function(params){
		this.bigimgnum = params.bigimgnum || 0;
		this.showimgnum = params.showimgnum || 0;
		this.showtabnum = params.showtabnum || 0;
		this.items = params.items;
		this.mode = params.mode || 'horizontal';
		this.modes = {horizontal:['left','width'], vertical:['top','height']};
		this.size = params.size || 240;
		this.box = params.box.setStyle(this.modes[this.mode][1],(this.size*this.items.length)+15+'px');
		this.button_event = params.button_event || 'click';
		this.handle_event = params.handle_event || 'click';
		this.onWalk = params.onWalk || 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;
		this.counter = 0;
		this.loaded = new Array();
		this.prevbtn = params.addButtons['previous'];
		
		if(this.handles){
			this.addHandleButtons(this.handles);
		}
		this.buttons = {
			previous: [],
			next: [],
			play: [],
			playback: [],
			stop: []
		};
		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.walk((params.startItem||0),true,true);
	},

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

	previous: function(manual){
		if(this.showimgnum > 0){
			if(this.currentIndex>0){
				this.walk(this.currentIndex-1,manual,'','prev');
			} else {
				if(!this.prevbtn.hasClass('disable')){
					this.prevbtn.addClass('disable');
				}
			}
			//this.walk((this.currentIndex>0 ? this.currentIndex-1 : this.items.length-this.showimgnum),manual,'','prev');
		} else {
			if(this.bigimgnum > 0){
				tempindex = this.bigimgnum-1;
			} else {
				tempindex = 0;
			}
			this.walk((this.currentIndex+tempindex>0 ? this.currentIndex-1 : this.items.length-3),manual,'','prev');	
		}
		
	},

	next: function(manual){
		if(this.showimgnum > 0){
			if(this.prevbtn.hasClass('disable')){
				this.prevbtn.removeClass('disable');
			}
			this.walk((this.currentIndex<this.items.length-this.showimgnum ? this.currentIndex+1 : 0),manual,'','next');
		} else {
			this.walk((this.currentIndex+2<this.items.length-1 ? this.currentIndex+1 : -2),manual,'','next');
		}
	},

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

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

	walk: function(item,manual,noFx,direction){
		if(item>0){
			var next = item-1;
			var preloaditems = this.box.getElements('div.pre');
			var nextToPreload = preloaditems[next];
			
			if(nextToPreload){
				if(!nextToPreload.hasClass('loaded')){
					img = nextToPreload.getElement('img');
					url = img.get('longdesc');
					
					var nextimg = new Element('img',{
						src: url
					});
					
					nextimg.replaces(img);
					nextToPreload.addClass('loaded');
				}
			}
		} else {
			if(!this.prevbtn.hasClass('disable')){
				this.prevbtn.addClass('disable');
			}
		}
		if(item!=this.currentIndex){
			if(this.bigimgnum > 0){
				var tempitems = this.box.getElements('span');			
				var middleitem = item+(this.bigimgnum-1);
				var bigitem = tempitems[middleitem];
				if(this.box.getElement('.big')){
					var bigbefore = this.box.getElement('.big');
					var resetfx = new Fx.Morph(bigbefore, {duration: 500, transition: Fx.Transitions.Sine.easeOut});
					var resetimgfx = new Fx.Morph(bigbefore.getElement('img'), {duration: 500, transition: Fx.Transitions.Sine.easeOut});
				}
				if(bigitem){
					var bigfx = new Fx.Morph(bigitem, {duration: 500, transition: Fx.Transitions.Sine.easeOut});
					var bigimgfx = new Fx.Morph(bigitem.getElement('img'), {duration: 500, transition: Fx.Transitions.Sine.easeOut});
					var tempwidth = bigitem.getStyle('width').toInt()+25+'px';
				}				
				if(this.box.getElement('.big')){
					resetfx.start({'width': '120px', 'height': '77px', 'margin-left': '0', 'margin-top': '30px', 'margin-right': '5px', 'z-index': this.items-1});
					resetimgfx.start({'width': '115px', 'height': '72px'});
					this.box.getElement('.big').removeClass('big');
				}
				if(bigitem){
					bigitem.addClass('big');
					//bigfx.start({'width': '150px', 'height': '95px', 'margin-left': '-15px', 'margin-top': '0', 'margin-right': '-15px', 'z-index': this.items.length+1});
					//bigimgfx.start({'width': '144px', 'height': '90px'});
					bigfx.start({'width': '220px', 'height': '140px', 'margin-left': '-50px', 'margin-top': '0', 'margin-right': '-50px', 'z-index': this.items.length+1});
					bigimgfx.start({'width': '216px', 'height': '135px'});
				}			
			}
		
			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.onWalk){
				this.onWalk((this.items[this.currentIndex] || null), (this.handles && this.handles[this.currentIndex] ? this.handles[this.currentIndex] : null));
			}
		}
	}
	
});