var Fastbox = (function(){
	function Fastbox(links){       
		// Apply lightbox on the links elements
		$$(links).each(function(link){
			link.addEvent('click', function(e){
				e.stop();
				// = GLOBAL VARS =
				var img, loading, closed, timer, block, fix_hud, img_width, img_height;
				
				// = BUILD INTERFACE =
				
				// OVERLAY
				if (!overlay) {
					var overlay = new Element('div', {'id': 'overlay'});
					// --- Effects
					var fx_o = new Fx.Morph(overlay, {'duration': 500, 'link': 'cancel'});
					// --- Events
					overlay.addEvent('click', function(){ close(); });
				}
				// --- Inject
				fx_o.set({'opacity': 0});
				overlay.inject(document.body);
				
				// IMAGE FRAME
				if (!frame) {
					var frame = new Element('div', {'id': 'frame'});
					// --- Events
					frame.addEvent('click', function(){ close(); });
				}
				// --- Inject
				frame.inject(document.body);
				
				// INDICATOR
				if (!indicator){
					var indicator = new Element('div', {'id': 'indicator'});
					var busy = new Element('div', {'id': 'busy'}).inject(indicator);
					// --- Events
					indicator.addEvent('click', function(){ close(); });
				}
				
				// HUD CONTROLLER
				if (!hud) {
				        var c_prev = new Element('a', {'id': 'c_prev'});
				        var c_next = new Element('a', {'id': 'c_next'});
				        var controls = new Elements([c_prev, c_next]);
				        var hud = new Element('div', {'id': 'hud'}).adopt(controls);
				        // --- Effects
				        var fx = new Fx.Morph(hud, {'duration': 500, 'link': 'cancel'});
				        fx.addEvent('onComplete', function(){
							block = false;
							if (fix_hud) return;
							if (hud.getStyle('opacity') === 1) {
								timer = fx.start.delay(1000, fx, {'opacity': 0});
							}
				        });
				        // --- Events
				        controls.addEvent('mouseenter', function(){
							$clear(timer);
							fix_hud = true;
				        })
				        controls.addEvent('mouseout', function(){
							fix_hud = false;
							timer = fx.start.delay(1000, fx, {'opacity': 0});
				        });
				        c_next.addEvent('click', function(){ change_img('next', c_next); });
				        c_prev.addEvent('click', function(){ change_img('prev', c_prev); });
				}
				// --- Inject
				fx.set({'opacity': 0});
				hud.inject(document.body);
				
				// DOCUMENT EVENTS
				window.addEvent('mousemove', function(){
					if (block) return;
					block = true;
					$clear(timer);
					fx.start({'opacity': 1});
				});
				document.addEvent('keydown', function(event){
					switch(event.code) {
						case 27:        // Esc
						case 88:        // 'x'
						case 67:        // 'c'
						close();
						break;
						case 37:        // Left arrow
						case 80:        // 'p'
						change_img('prev', c_prev);
						break;  
						case 39:        // Right arrow
						case 78:        // 'n'
						change_img('next', c_next);
					}
				});
				
				// = INTERACTIVE EVENTS =
				
				// CLOSING EVENT
				function close(){
					closed = true;
					if (indicator) indicator.dispose();
					frame.dispose();
					hud.dispose();
					fx_o.start({'opacity': 0}).chain(function(){
						overlay.dispose();
					});
					document.removeEvents('keydown');
					window.removeEvents('mousemove');
					window.removeEvents('resize');
				}
//				
				// UPDATE HUD, AND PRELOAD
				function update(){
				        // Test prev/next images
				        if (link.getNext('a')) {
				                c_next.removeClass('inactive');
				                // Preloading
				                new Asset.image(link.getNext().getProperty('href'));
				        }
				        else {
				                c_next.addClass('inactive');
				        }
				        if (link.getPrevious('a')) {
				                c_prev.removeClass('inactive');
				                // Preloading
				                new Asset.image(link.getPrevious().getProperty('href'));
				        }
				        else {
				                c_prev.addClass('inactive');
				        }
				}
				
				// IMAGE IS READY
				function img_ready(){
				        loading = false;
				        if (closed) return;
				        // Timeout pour firefox qui fait un glitch visuel sinon
				        setTimeout(function(){ indicator.dispose(); }, 100);
				        img.inject(frame);
				        img_width = img.getSize().x;
				        img_height = img.getSize().y;
				        resize_img();
				}
				
				// PREV/NEXT IMAGES CALL
				function change_img(to, button){
				        if (button.hasClass('inactive')) return;
				        img.dispose();
				        if (!$('busy')) indicator.grab(busy);
				        indicator.removeClass('error').inject(document.body);
				        // Update HUD
				        if (to == "next") {
				                link = link.getNext();
				        }
				        else {
				                link = link.getPrevious();
				        }
				        update();
				        // Do the asset now
				        loading = true;
				
				        img = new Asset.image(link.getProperty('href'), {
				                'title': link.getProperty('title'),
				                'alt': link.getProperty('title'),
				                'id': 'imagezoom',
				                'onerror': function(){
				                        indicator.empty().setProperty('class', 'error');
				                },
				                'onload': function(){
				                        img_ready();
				                }
				        });
				}
				
				// RESIZE IMAGE
				function resize_img(){
				        // Get some informations
				        var win_width = window.getSize().x;
				        var win_height = window.getSize().y;
				
				        var ratio = img_width / img_height;
				        var height; var width;
				
				        // Resizing function
				        function resize(dimension){
				                if (dimension == "x") {
				                        width = win_width - 40;
				                        height = width / ratio;
				                }
				                else {
				                        height = win_height - 40;
				                        width = height * ratio;
				                }
				        }
				
				        // Let's do the tests
				        if (win_width >= img_width) {
				                // Pas tronquée
				                if (win_height >= img_height) {
				                        width = img_width;
				                        height = img_height;
				                }
				                // Tronquée en hauteur
				                else {
				                        resize('y');
				                }
				        }
				        else {
				                // Tronquée en largeur
				                if (win_height >= img_height) {
				                        resize('x');
				                }
				                // Tronquée en hauteur & largeur
				                else {
				                        // Fenêtre en portrait
				                        if (win_width < win_height) {
				                                // Image en paysage ou en carré
				                                if (ratio >= 1) {
				                                        resize('x');
				                                }
				                                // Image en portrait
				                                else if (ratio < 1) {
				                                        // Image plus rapidement redimensionnée en hauteur qu'en largeur
				                                        if (img_width - win_width > img_height - win_height) {
				                                                resize('y');
				                                        }
				                                        // Inversement
				                                        else {
				                                                resize('x');
				                                        }
				                                }
				                        }
				                        // Fenêtre en paysage
				                        else {
				                                // Image en paysage
				                                if (ratio > 1) {
				                                        // Image plus rapidement redimensionnée en hauteur qu'en largeur
				                                        if (img_width - win_width > img_height - win_height) {
				                                                resize('x');
				                                        }
				                                        // Inversement
				                                        else {
				                                                resize('y');
				                                        }
				                                }
				                                // Image en portrait ou en carré
				                                else if (ratio <= 1) {
				                                        resize('y');
				                                }
				                        }
				                }
				        }
				        // POSITION : TOP & LEFT
				        var left = (win_width - width) / 2;
				        var top = (win_height - height) / 2 - 15;
				        // SET THE STYLES
				        img.setProperties({'width': width, 'height': height});
				        img.set('style', 'top:'+top+'px;left:'+left+'px');
				}
				
				// = FIRST SEQUENCE =
				
				// DEPLOY OVERLAY
				fx_o.start({'opacity': 0.8}).chain(function(){
				        if (!loading) return;
				        indicator.inject(document.body);
				});
				
				// LOAD FIRST IMAGE
				loading = true;
				img = new Asset.image(this.getProperty('href'), {
				        'title': this.getProperty('title'),
				        'alt': this.getProperty('title'),
				        'onerror': function(){
				                indicator.empty().setProperty('class', 'error');
				        },
				        'onload': function(){
				                img_ready();
				                window.addEvent('resize', function(){
				                        resize_img();
				                });
				        }
				});
				
				// UPDATE HUD
				update();
			});
		});
	}

	return Fastbox;  
})();