// JavaScript Document

// This is a self invoking function. 
// The $ parameter allows you to reference the jQuery item.
(function($){

    // fn is essentially the same as prototype.
    // so this will be used like $('#jqueryItem').twittergetter(username)
    $.fn.twittergetter = function(username,options){
        
		//check to see if the username has been set.
        if (username){
			
            //create an object full of your default settings.
            var defaultSettings = {
                count:'3'
            }
            
            
            // Finds which default settings have been overwritten by the options object
            // and creates a new object with all the new and untouched settings.
            var settings = $.extend(defaultSettings, options);
			
			// The URL for the Twitter JSON API.
            var url = "http://twitter.com/status/user_timeline/"+username+".json?count="+settings.count+"&callback=?";
            
            //Variable to get around scope problem in callback function.
            var holder = this;
			
			//holder.append("<p><a href='http://twitter.com/'+ username +'''>Follow @" + username + " on twitter</a></p>");
            
            //Contact Twitter
            $.getJSON(url,
            
            //This function is called when twitter responds with the appropriate information.
            function(data){
                
                //Step through each tweet.
                $.each(data, function(i, item) {
                    
                    //place the tweet within a paragraph tag within the main div.
                    holder.append("<p>"+item.text.makeLinks()+"</p>");
        
                });
            });
			       
            
        }else{
            //Username paramater has not been set.
            console.debug("jquery plugin twittergetter requires a username! Check your parameters");
    
        }
		
		//Changes urls within the tweet into links.
        String.prototype.makeLinks = function() {
            return this.replace(/[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+/, function(str) {
            return str.link(str);
            });
        };
		
        //Return itself
        return this;
    
    };
    

// We pass "jQuery" to the self invoking function 
// so we can use whatever alias of jQeury that we like. 
// So instead of "$" you could also use any other 
// valid JavaScript variable name.
})(jQuery);