/**
 *  Plugin which renders the YouTube channel videos list to the page
 *  @author:  H. Yankov (hristo.yankov at gmail dot com)
 *  @version: 1.0.0 (Nov/27/2009)
 *    http://yankov.us
 *  
 *  Modified my Dan Hounshell (Jan/2010) to work for favorites or 
 *  uploads feeds and simplified output 
 */

var __mainDiv;
var __preLoaderHTML;
var __opts;

function __jQueryYouTubeChannelReceiveData(data) {
	var cnt = 0;
	var fita= __opts.numberToDisplay + __opts.startPos ;
	youtubeVideosNElems = data.feed.entry.length;
	
	$.each(data.feed.entry, function(i, e) {
		if ( cnt >= __opts.startPos  &&  cnt < fita ) {
			var parts = e.id.$t.split('/');
			var videoId = parts[parts.length-1];
			var out = '<div class="video"><a href="' + 
				e.link[0].href + '"><img src="http://i.ytimg.com/vi/' + 
				videoId + '/2.jpg"/></a><br /><a href="' + 
				e.link[0].href + '">' + e.title.$t + '</a><p>';
			if (!__opts.hideAuthor) {
				out = out + 'Author: ' + e.author[0].name.$t + '';
			}
			out = out + '</p></div>';
			__mainDiv.append(out);
		}
		cnt = cnt + 1;
	});
	
    // Open in new tab?
    if (__opts.linksInNewWindow) {
        $(__mainDiv).find("li > a").attr("target", "_blank");
    }
    
    // Remove the preloader and show the content
    $(__preLoaderHTML).remove();
    __mainDiv.show();
	
	if (youtubeVideosNElems < __opts.numberToDisplay)
		$("#showmorevideos").css("display", "none");
}

function loadVideos() {
	$('#youtubevideos > #channel_div').detach();
	
	youtubeVideosStartPos += 4;
	
	$('#youtubevideos').youTubeChannel({
		userName: 'omniumcatalunya',
		channel: 'uploads',
		hideAuthor: true,
		numberToDisplay: 4,
		startPos: youtubeVideosStartPos,
		linksInNewWindow: true,
//  		loadingText: "Carregant..."
		loadingText: "<img class=\"loading\" src=\"/docroot/catalunya/imgs/loading.gif\" alt=\"Carregant...\" />"
	});
	if (youtubeVideosNElems <= (youtubeVideosStartPos+5)) {
		youtubeVideosStartPos = -4;
	}
}

(function($) {
    $.fn.youTubeChannel = function(options) {
        var videoDiv = $(this);

        $.fn.youTubeChannel.defaults = {
            userName: null,
            channel: "favorites", //options are favorites or uploads
            loadingText: "Loading...",
            numberToDisplay: 3,
            startPos: 0,
            linksInNewWindow: true,
            hideAuthor: false
        }

        __opts = $.extend({}, $.fn.youTubeChannel.defaults, options);

        return this.each(function() {
            if (__opts.userName != null) {
                videoDiv.append("<div id=\"channel_div\"></div>");
                __mainDiv = $("#channel_div");
                __mainDiv.hide();

                __preLoaderHTML = $("<p class=\"loader\">" + 
                    __opts.loadingText + "</p>");
                videoDiv.append(__preLoaderHTML);

                // TODO: Error handling!
                $.ajax({
                    url: "http://gdata.youtube.com/feeds/base/users/" + 
                        __opts.userName + "/" + __opts.channel + "?alt=json",
                    cache: true,
                    dataType: 'jsonp',                    
                    success: __jQueryYouTubeChannelReceiveData
                });
            }
        });
    };
})(jQuery);