/*
---
name: XtLightbox.Adaptor.YouTube

description: extendable lightbox YouTube Adaptor class

license: MIT-style

authors:
- Anton Suprun <kpobococ@gmail.com>

requires:
- XtLightbox.Adaptor

provides: XtLightbox.Adaptor.YouTube

...
*/
XtLightbox.Adaptor.YouTube = new Class(
{
    Extends: XtLightbox.Adaptor,

    $name: 'YouTube',

    options: {
        width: 853,
        height: 505,
        hd: true,
        fullscreen: false,
        related: false,
        autoplay: true
    },

    check: function(element)
    {
        var l = /http:\/\/(?:www\.)?youtube.com\/watch\?(?:\S+=\S*&)*v=([-a-z0-9_]+)(?:&|$)/i,
            s = /http:\/\/(?:www\.)?youtu.be\/([-a-z0-9_]+)$/i;
        var r = l.exec(element.href);
        if (!r) r = s.exec(element.href);
        if (r) {
            element.$xtlightbox = element.$xtlightbox || {};
            element.$xtlightbox.YouTubeId = r[1];
        }
        return r;
    },

    getContent: function(element)
    {
        if (!XtLightbox.Adaptor.cached(element)) throw new Error('Element content must be loaded first');
        return XtLightbox.Adaptor.load(element);
    },

    getSize: function(element)
    {
        if (!XtLightbox.Adaptor.cached(element)) throw new Error('Element content must be loaded first');
        return {
            x: this.options.width,
            y: this.options.height
        }
    },

    load: function(element, callback)
    {
        callback = callback || function() {}
        if (XtLightbox.Adaptor.cached(element)) {
            callback(element);
            return this;
        }
        var params = {};
        // params.wmode = 'transparent';
        if (this.options.fullscreen) params.fs = '1';
        if (!this.options.related) params.rel = '0';
        if (this.options.hd) params.hd = '1';
        if (this.options.autoplay) params.autoplay = '1';
        var a = [];
        for (var p in params) {
            if (!params.hasOwnProperty(p)) continue;
            a.push(p + '=' + params[p]);
        }
        params = a.join('&');
        XtLightbox.Adaptor.cache(element, new Swiff('http://www.youtube.com/v/' + element.$xtlightbox.YouTubeId + '?' + params, {
            width: this.options.width,
            height: this.options.height,
            params: {
                allowFullScreen: 'true',
                wMode: 'transparent',
                bgcolor: '#ff3300'
            }
        }));
        callback(element);
        return this;
    }
});