var Videobox = {
	init: function (options)
	{
		this.options = Object.extend({
			resizeDuration: 400,	// Duration of height and width resizing (ms)
			initialWidth: 250,		// Initial width of the box (px)
			initialHeight: 250,		// Initial height of the box (px)
			defaultWidth: 425,		// Default width of the box (px)
			defaultHeight: 350,		// Default height of the box (px)
			animateCaption: true,	// Enable/Disable caption animation
			flvplayer: 'swf/flvplayer.swf'
		}, options || {});

		this.anchors = [];

		$A($$('a')).each(function(el)
		{
			if (el.rel && el.href && el.rel.test('^vidbox', 'i'))
			{
				el.addEvent('click', function(e)
				{
					e = new Event(e);
					e.stop();
					this.click(el);
				}.bind(this));

				this.anchors.push(el);
			}
		}, this);

		this.overlay = new Element('div').setProperty('id', 'lbOverlay').injectInside(document.body);
		this.center = new Element('div').setProperty('id', 'lbCenter').setStyles({width: this.options.initialWidth+'px', height: this.options.initialHeight+'px', marginLeft: '-'+(this.options.initialWidth/2)+'px', display: 'none'}).injectInside(document.body);

		this.bottomContainer = new Element('div').setProperty('id', 'lbBottomContainer').setStyle('display', 'none').injectInside(document.body);
		this.bottom = new Element('div').setProperty('id', 'lbBottom').injectInside(this.bottomContainer);

		new Element('a').setProperties({id: 'lbCloseLink', href: '#'}).injectInside(this.bottom).onclick = this.overlay.onclick = this.close.bind(this);

		this.caption = new Element('div').setProperty('id', 'lbCaption').injectInside(this.bottom);
		this.nav = new Element('div').setProperty('id', 'lbNav').injectInside(this.bottom);

		new Element('div').setStyle('clear', 'both').injectInside(this.bottom);

		var nextEffect = this.nextEffect.bind(this);

		this.fx = {
			overlay: this.overlay.effect('opacity', { duration: 500 }).hide(),
			center: this.center.effects({ duration: 500, transition: Fx.Transitions.sineInOut, onComplete: nextEffect }),
			bottom: this.bottom.effect('margin-top', { duration: 400 })
		};
	},

	click: function(link)
	{
		this.active_anchor = link;
 		return this.open(link.href, link.title, link.rel);
	},

	open: function(sLinkHref, sLinkTitle, sLinkRel)
	{
		this.href = sLinkHref;
		this.title = sLinkTitle;
		this.rel = sLinkRel;
		this.position();
		this.setup();
		this.video(this.href);
		this.top = window.getScrollTop() + (window.getHeight() / 15);
		this.center.setStyles({ top: this.top+'px', display: '' });
		this.fx.overlay.start(0.8);
		this.step = 1;
		this.center.setStyle('background', '#fff url(/images/lightbox-ico-loading.gif) no-repeat center');
		this.caption.innerHTML = this.title;
		this.fx.center.start({ 'height': [this.options.contentsHeight] });

		var mt = this.rel.match(/g:[A-Za-z_\-]+/);
		this.group = ((mt && mt[0].length>0) ? mt[0].substr(2) : '');

		this.prev_anchors = [];
		this.next_anchors = [];
		var arr = this.prev_anchors;

		for (var i = 0; i < this.anchors.length; i++)
		{
			var anch = this.anchors[i];

			if (anch == this.active_anchor)
			{
				arr = this.next_anchors;
			}
			else
			{
				var mt = anch.rel.match(/g:[A-Za-z_\-]+/);
				var grp = ((mt && mt[0].length>0) ? mt[0].substr(2) : '');

				if (grp == this.group) {
					arr.push(anch);
				}
			}
		}

		var nav = [];

		if (this.prev_anchors.length > 0) {
			nav.push('← <a style="color:#00F" id="lnkPrev" href="' + this.prev_anchors[this.prev_anchors.length - 1].href + '">prev</a>');
		}

		if (this.next_anchors.length > 0) {
			nav.push('<a style="color:#00F" id="lnkNext" href="' + this.next_anchors[0].href + '">next</a> →');
		}

		this.nav.innerHTML = nav.join('&nbsp;&nbsp;&nbsp;');

		if (this.prev_anchors.length > 0)
		{
			document.getElementById('lnkPrev').addEvent('click', function(e)
			{
				e = new Event(e);
				e.stop();

				this.next_anchor = this.prev_anchors[this.prev_anchors.length - 1];
				this.close();
			}.bind(this));
		}

		if (this.next_anchors.length > 0)
		{
			document.getElementById('lnkNext').addEvent('click', function(e)
			{
				e = new Event(e);
				e.stop();

				this.next_anchor = this.next_anchors[0];
				this.close();
			}.bind(this));
		}
	},

	setup: function()
	{
		var aDim = this.rel.match(/[0-9]+/g);
		this.options.contentsWidth = (aDim && (aDim[0] > 0)) ? aDim[0] : this.options.defaultWidth;
		this.options.contentsHeight = (aDim && (aDim[1] > 0)) ? aDim[1] : this.options.defaultHeight;
	},

	position: function()
	{
		this.overlay.setStyles({'top': '0px', 'height': document.body.offsetHeight+'px'});
	},

	video: function(sLinkHref)
	{
		if (sLinkHref.match(/youtube\.com\/watch/i))
		{
			this.flash = true;
			var hRef = sLinkHref;
			var videoId = hRef.split('=');
			this.videoID = videoId.slice(1).join('=');
			this.so = new SWFObject("http://www.youtube.com/v/"+this.videoID, "flvvideo", this.options.contentsWidth, this.options.contentsHeight, "0");
			this.so.addParam("wmode", "transparent");
		}
		else if (sLinkHref.match(/metacafe\.com\/watch/i))
		{
			this.flash = true;
			var hRef = sLinkHref;
			var videoId = hRef.split('/');
			this.videoID = videoId[4];
			this.so = new SWFObject("http://www.metacafe.com/fplayer/"+this.videoID+"/.swf", "flvvideo", this.options.contentsWidth, this.options.contentsHeight, "0");
			this.so.addParam("wmode", "transparent");
		}
		else if (sLinkHref.match(/google\.com\/videoplay/i))
		{
			this.flash = true;
			var hRef = sLinkHref;
			var videoId = hRef.split('=');
			this.videoID = videoId[1];
			this.so = new SWFObject("http://video.google.com/googleplayer.swf?docId="+this.videoID+"&hl=en", "flvvideo", this.options.contentsWidth, this.options.contentsHeight, "0");
			this.so.addParam("wmode", "transparent");
		}
		else if (sLinkHref.match(/ifilm\.com\/video/i))
		{
			this.flash = true;
			var hRef = sLinkHref;
			var videoId = hRef.split('video/');
			this.videoID = videoId[1];
			this.so = new SWFObject("http://www.ifilm.com/efp", "flvvideo", this.options.contentsWidth, this.options.contentsHeight, "0", "#000");
			this.so.addVariable("flvbaseclip", this.videoID+"&");
			this.so.addParam("wmode", "transparent");
		}
		else if (sLinkHref.match(/\.mov/i))
		{
			this.flash = false;

			if (navigator.plugins && navigator.plugins.length) {
				this.other ='<object id="qtboxMovie" type="video/quicktime" codebase="http://www.apple.com/qtactivex/qtplugin.cab" data="'+sLinkHref+'" width="'+this.options.contentsWidth+'" height="'+this.options.contentsHeight+'"><param name="src" value="'+sLinkHref+'" /><param name="scale" value="aspect" /><param name="controller" value="true" /><param name="autoplay" value="true" /><param name="bgcolor" value="#000000" /><param name="enablejavascript" value="true" /></object>';
			} else {
				this.other = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab" width="'+this.options.contentsWidth+'" height="'+this.options.contentsHeight+'" id="qtboxMovie"><param name="src" value="'+sLinkHref+'" /><param name="scale" value="aspect" /><param name="controller" value="true" /><param name="autoplay" value="true" /><param name="bgcolor" value="#000000" /><param name="enablejavascript" value="true" /></object>';
			}
		}
		else if (sLinkHref.match(/\.wmv/i) || sLinkHref.match(/\.asx/i))
		{
			this.flash = false;
			this.other = '<object NAME="Player" WIDTH="'+this.options.contentsWidth+'" HEIGHT="'+this.options.contentsHeight+'" align="left" hspace="0" type="application/x-oleobject" CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"><param NAME="URL" VALUE="'+sLinkHref+'"><param><param NAME="AUTOSTART" VALUE="false"></param><param name="showControls" value="true"></param><embed WIDTH="'+this.options.contentsWidth+'" HEIGHT="'+this.options.contentsHeight+'" align="left" hspace="0" SRC="'+sLinkHref+'" TYPE="application/x-oleobject" AUTOSTART="false"></embed></object>'
		}
		else if (sLinkHref.match(/\.flv/i))
		{
			this.flash = true;
			this.so = new SWFObject(this.options.flvplayer+"?file="+sLinkHref, "flvvideo", this.options.contentsWidth, this.options.contentsHeight, "0", "#000");
		}
		else
		{
			this.flash = false;
			this.other = '<img src="' + sLinkHref + '" alt="" />';
		}
	},

	nextEffect: function()
	{
		switch (this.step++)
		{
			case 1:
				this.fx.center.start({'width': [this.options.contentsWidth], 'marginLeft': [this.options.contentsWidth/-2]});
				break;

			case 2:
				this.center.setStyle('background','#fff');
				this.flash ? this.so.write(this.center) : this.center.setHTML(this.other);
				this.bottomContainer.setStyles({top: (this.top + this.center.clientHeight)+'px', height: '0px', marginLeft: this.center.style.marginLeft, width: this.options.contentsWidth+'px',display: ''});

				if (this.options.animateCaption)
				{
					this.fx.bottom.set(-this.bottom.offsetHeight);
					this.bottomContainer.style.height = '';
					this.fx.bottom.start(0);
					break;
				}

				this.bottomContainer.style.height = '';
				this.step++;
		}
	},

	close: function()
	{
		if (typeof(this.next_anchor)=='undefined' || !this.next_anchor) {
			this.fx.overlay.start(0);
		}

		this.center.style.display = this.bottomContainer.style.display = 'none';
		this.center.innerHTML = '';

		if (typeof(this.next_anchor)!='undefined' && this.next_anchor)
		{
			this.click(this.next_anchor);
			this.next_anchor = null;
		}

		return false;
	}
};

window.addEvent('domready', Videobox.init.bind(Videobox));