// JavaScript for the PBS Parents Twitter Badge

(function($){
	$(document).ready(function(){
		var tUsername, count, url, cTwitter, tweet, date, cDate; // Sets var namespaces
		tUsername = "pbsparents"; // Defines Twitter Username
		count = 2; // Defines number of Tweets in badge
		url = "http://www.twitter.com/status/user_timeline/" + tUsername + ".json?count=" + count + "&callback=?"; // Defines URL of Twitter API
		cDate = "ts" // Class name for span
		$.getJSON(url,function(data){
			
			cTwitter = $("#twitterFeed"); // Caches Twitter Feed container in HTML (<ul id="twitterFeed")
			
			for (var i = data.length-1;i >= 0;i--){
				
				// Uses ReGex syntax to check for linkable elements (i.e @username and links)
				tweet = data[i].text.replace(/\b(http:\/\/\S*)\b/g, '<a href="$1">$1</a>'); // Checks for http in data[i].text
				tweet = tweet.replace(/\b(www\.\S*)\b/g, '<a href="http://$1">$1</a>'); // Checks for www in data[i].text if word does not start with http
				tweet = tweet.replace(/(^|\s|\()@\b(\w*)(\b)/g, '$1<a href="http://twitter.com/$2">@$2</a>'); // Checks for @replies in data[i].text
				
				date = data[i].created_at; // Gets Tweet's Created on Date
					
				// Adds the li elements to the ul container
				$('<li />',{
					id: 'twitterComment' + i,
					html: tweet + " <span class='" + cDate +"'>" + date + "</span>"
				  }).prependTo(cTwitter);
				cTwitter.find('span').cuteTime(); // Uses the CuteTime plugin to convert Twitter API created_at timestamp to user friendly text	
			}
		});
   });				
})(jQuery);