/*
Copyright 2011 : Daniel Haimerl <info@actindo.de>
*/

(function() {
    function createPlayer(jqe, video, options) {
        var ifr = $('iframe', jqe);
        if (ifr.length === 0) {
            ifr = $('<iframe scrolling="no">');
            ifr.addClass('player');
        }
        var src = 'http://www.youtube.com/embed/' + video.id;
        if (options.playopts) {
            src += '?';
            for (var k in options.playopts) {
                src+= k + '=' + options.playopts[k] + '&';
            }  
            src += '_a=b';
        }
        ifr.attr('src', src);
        jqe.append(ifr);  
    }
    
    function createCarousel(jqe, videos, options) {
        var car = $('div.carousel', jqe);
        if (car.length === 0) {
            car = $('<div>');
            car.addClass('carousel');
            jqe.append(car);
            
        }
        $.each(videos, function(i,video) {
            options.thumbnail(car, video, options); 
        });
    }
    
    function createThumbnail(jqe, video, options) {
        var imgurl = video.thumbnails[0].url;
        var img = $('img[src="' + imgurl + '"]');
        var minutes = Math.floor(video.duration/60);
        var seconds = video.duration % 60;

        if (img.length !== 0) return;
        img = $('<img>');    
        img.addClass('thumbnail');
        jqe.append(img);
        img.attr('src', imgurl);
        img.attr('title', video.title+' ('+minutes+':'+seconds+')');
        img.click(function() {
            options.player(options.maindiv, video, $.extend(true,{},options,{playopts:{autoplay:1}}));
        });

        txt = $('<div class="caption"><span>'+video.title+'</span> ('+minutes+':'+seconds+')</div>');
        jqe.append(txt);
        txt.click(function() {
            options.player(options.maindiv, video, $.extend(true,{},options,{playopts:{autoplay:1}}));
        });
    }
    
    function createHeader(jqe, feed, options) {
        head =  '<table class="basket-content" cellpadding="0" cellspacing="0" style="width: 1000px;"><tbody>';
        head += '<tr><th>';
        head += feed.title.$t;
        head += '</th></tr>';
        head += '</tbody></table>';
        
        jqe.append(head);

    }
    
    var defoptions = {
        autoplay: false,
        user: null,
        carousel: createCarousel,
        player: createPlayer,
        thumbnail: createThumbnail,
        header: createHeader,
        loaded: function() {},
        playopts: {
            autoplay: 0,
            egm: 1,
            autohide: 1,
            fs: 1,
            showinfo: 0
        }
    };
    
    
    $.fn.extend({
        youTubeChannel: function(options) {
            var md = $(this);
            md.addClass('youtube');
            md.addClass('youtube-channel');
            var allopts = $.extend(true, {}, defoptions, options);
            allopts.maindiv = md;
            $.getJSON('http://gdata.youtube.com/feeds/api/playlists/' + allopts.playlist + '?alt=json-in-script&format=5&callback=?', null, function(data) {
                var feed = data.feed;
                var videos = [];
                $.each(feed.entry, function(i, entry) {
                    if( entry.media$group.media$content[0].duration > 3 ) {
                        var video = {
                            title: entry.title.$t,
                            duration: entry.media$group.media$content[0].duration,
                            id: entry.link[4].href.match('[^/]*$'),
                            thumbnails: entry.media$group.media$thumbnail
                        };
                        videos.push(video);
                    }
                });
                allopts.allvideos = videos;
                allopts.header(md,feed,allopts);                
                allopts.carousel(md, videos, allopts);
                allopts.player(md, videos[0], allopts);
                allopts.loaded(videos, allopts);
            });
        } 
    });
    
})();