Parser do json do youtube

youtube_json_parser

$(function(){

    $('#slider').nivoSlider();		
    $.ajax({
	    type: "GET",
	    url: "http://gdata.youtube.com/feeds/users/XYZLIVEBRASIL/uploads?alt=json-in-script&format=5",
	    dataType:'jsonp',
	    success: function(data){
	        var video = getListaVideos(data), 
	        	c=0,
    			html = "";
	    	html += "<ul class='youtube-listagem'>";
	        for(var c = 0;  c<3; c++){
	        	html += montaVideo(video[c]);
	        }
	    	html += "</ul>";
	    	$("#youtube-list").html(html);
	    }
	});

});

    function montaVideo(video){
	
    	var thumb 		= getThumbnailImagem(video),
    		titulo		= getTitle(video),
    		href 		= getLink(video),
    		title 		= "<a href='"+href+"' class='youtube-title' target='_blank'>"+titulo+"</a><br />",
    		views 		= "<span class='youtube-views'>"+getViews(video)+" views</span>",
    		published 	= "<span class='youtube-published'>"+getPublished(video)+"</span>",
    		img 		= "<img src='"+thumb+"' alt='"+titulo+"' width='150' class='youtube-thumbnail' />",
    		a_open 		= "<a href='"+href+"' title='"+titulo+"' target='_blank'>",
    		a_close		= "</a>",
    		li = "";

	    li += "<li>";
	    li += a_open;
    	li += img;
	    li += a_close;
	    li += "<p>",
    	li += title;
    	// li += views;
    	li += published;
    	li += "</p>";
		li += "</li>";

    	return li;
    }
	function getListaVideos(data){
		return data.feed.entry;
	}

	function getThumbnailImagem(video){
		return video.media$group.media$thumbnail[0].url;
	}
	function getAuthor(video){
		
	}
	function getLink(video){
		return video.link[0].href;
	}
	function getTitle(video){
		return video.media$group.media$title.$t;
	}
	function getPublished(video){

    	var date = new Date(),
    		diff = date.diff(new Date(video.published.$t));

		if(diff.years > 0){
			return (diff.years === 1) ? diff.years+" dia atras" : diff.years+" dias atras";
		}
		if(diff.months > 0){
			return (diff.months === 1) ? diff.months+" dia atras" : diff.months+" dias atras";
		}
		if(diff.days > 0){
			return (diff.days === 1) ? diff.days+" dia atras" : diff.days+" dias atras";
		}
		if(diff.hours > 0){
			return (diff.hours === 1) ? diff.hours+" dia atras" : diff.hours+" dias atras";
		}
		if(diff.minutes > 0){
			return (diff.minutes === 1) ? diff.minutes+" dia atras" : diff.minutes+" dias atras";
		}
		if(diff.seconds > 0){
			return (diff.seconds === 1) ? diff.seconds+" dia atras" : diff.seconds+" dias atras";
		}
	}
	function getContent(video){
		return video.content.$t;
	}
	function getDescription(video){
		return video.media$group.media$description.$t;
	}
	function getKeywords(video){
		return video.media$group.media$keywords.$t;
	}
	function getViews(video){
		return video.yt$statistics.viewCount;
	}

	Object.defineProperty(Date.prototype,"diff",{
	writable: false, configurable: false, enumerable: true,

	/**
	 * Returns the difference between two Date objects.
	 * @param {Date} The date to compare to.
	 * @return {Object}
	 * @throws {TypeError}
	 */
	value: function(date) {
		if (date instanceof Date){
			var ms = this-date;
			var diff = {};

			for ( diff.years = 0; ms>=31536000000; diff.years++, ms -= 31536000000);
			for ( diff.months = 0; ms>=2628000000; diff.months++, ms -= 2628000000);
			for ( diff.days = 0; ms>=86400000; diff.days++, ms -= 86400000);
			for ( diff.hours = 0; ms>=3600000; diff.hours++, ms -= 3600000);
			for ( diff.minutes = 0; ms>=60000; diff.minutes++, ms -= 60000);
			for ( diff.seconds = 0; ms>=1000; diff.seconds++, ms -= 1000);
			diff.milliseconds = ms;

			return diff;
		}

		throw new TypeError("invalid date");
	}
});