(function($) {
	
	$.fn.tweet = function(o){
		var s = {
			username: ["seaofclouds"],				// [string]		required, unless you want to display our tweets. :) it can be an array, just do ["username1","username2","etc"]
			list: null,								// [string]		optional name of list belonging to username
			avatar_size: null,						// [integer]	height and width of avatar if displayed (48px max)
			count: 3,								// [integer]	how many tweets to display?
			intro_text: null,						// [string]		do you want text BEFORE your your tweets?
			outro_text: null,						// [string]		do you want text AFTER your tweets?
			join_text:  null,						// [string]		optional text in between date and tweet, try setting to "auto"
			auto_join_text_default: "i said,",		// [string]		auto text for non verb: "i said" bullocks
			auto_join_text_ed: "i",					// [string]		auto text for past tense: "i" surfed
			auto_join_text_ing: "i am",				// [string]		auto tense for present tense: "i was" surfing
			auto_join_text_reply: "i replied to",	// [string]		auto tense for replies: "i replied to" @someone "with"
			auto_join_text_url: "i was looking at",	// [string]		auto tense for urls: "i was looking at" http:...
			loading_text: null,						// [string]		optional loading text, displayed while tweets load
			query: null,							// [string]		optional search query
			refresh_interval: null					// [integer]	optional number of seconds after which to reload tweets
		};
		
		if(o) $.extend(s, o);
		
		$.fn.extend({
			linkUrl: function() {
				var returning = [];
				var regexp = /((ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?)/gi;
				this.each(function() {
					returning.push(this.replace(regexp,"<a href=\"$1\">$1</a>"));
				});
			return $(returning);
		},
		linkUser: function() {
			var returning = [];
			var regexp = /[\@]+([A-Za-z0-9-_]+)/gi;
			this.each(function() {
				returning.push(this.replace(regexp,"<a href=\"http://twitter.com/$1\">@$1</a>"));
			});
			return $(returning);
		},
		linkHash: function() {
			var returning = [];
			var regexp = /(?:^| )[\#]+([A-Za-z0-9-_]+)/gi;
			this.each(function() {
				returning.push(this.replace(regexp, ' <a href="http://search.twitter.com/search?q=&tag=$1&lang=all&from='+s.username.join("%2BOR%2B")+'">#$1</a>'));
			});
			return $(returning);
		},
		capAwesome: function() {
			var returning = [];
			this.each(function() {
				returning.push(this.replace(/\b(awesome)\b/gi, '<span class="awesome">$1</span>'));
			});
			return $(returning);
		},
		capEpic: function() {
			var returning = [];
			this.each(function() {
				returning.push(this.replace(/\b(epic)\b/gi, '<span class="epic">$1</span>'));
			});
			return $(returning);
		},
		makeHeart: function() {
			var returning = [];
			this.each(function() {
				returning.push(this.replace(/(&lt;)+[3]/gi, "<tt class='heart'>&#x2665;</tt>"));
			});
			return $(returning);
		}
	});
	
	function parse_date(date_str) {
		// The non-search twitter APIs return inconsistently-formatted dates, which Date.parse
		// cannot handle in IE. We therefore perform the following transformation:
		// "Wed Apr 29 08:53:31 +0000 2009" => "Wed, Apr 29 2009 08:53:31 +0000"
		return Date.parse(date_str.replace(/^([a-z]{3})( [a-z]{3} \d\d?)(.*)( \d{4})$/i, '$1,$2$4$3'));
	}
	
	function relative_time(time_value) {
		var parsed_date = parse_date(time_value);
		var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
		var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
		var r = '';
		if (delta < 60) {
			r = delta + ' seconds ago';
		} else if(delta < 120) {
			r = 'a minute ago';
		} else if(delta < (45*60)) {
			r = (parseInt(delta / 60, 10)).toString() + ' minutes ago';
		} else if(delta < (2*60*60)) {
			r = 'an hour ago';
		} else if(delta < (24*60*60)) {
			r = '' + (parseInt(delta / 3600, 10)).toString() + ' hours ago';
		} else if(delta < (48*60*60)) {
			r = 'a day ago';
		} else {
			r = (parseInt(delta / 86400, 10)).toString() + ' days ago';
		}
		return 'about ' + r;
	}
	
	function build_url() {
		var proto = ('https:' == document.location.protocol ? 'https:' : 'http:');
		if (s.list) {
			return proto+"//api.twitter.com/1/"+s.username[0]+"/lists/"+s.list+"/statuses.json?per_page="+s.count+"&callback=?";
		} else if (s.query == null && s.username.length == 1) {
			return proto+'//api.twitter.com/1/statuses/user_timeline.json?screen_name='+s.username[0]+'&count='+s.count+'&include_rts=1&callback=?';
		} else {
			var query = (s.query || 'from:'+s.username.join(' OR from:'));
			return proto+'//search.twitter.com/search.json?&q='+encodeURIComponent(query)+'&rpp='+s.count+'&callback=?';
		}
	}
	
	return this.each(function(i, widget){
		var list = $('<ul class="tweet_list">').appendTo(widget);
		var intro = '<p class="tweet_intro">'+s.intro_text+'</p>';
		var outro = '<p class="tweet_outro">'+s.outro_text+'</p>';
		var loading = $('<p class="loading">'+s.loading_text+'</p>');
		
		if(typeof(s.username) == "string"){
			s.username = [s.username];
		}
		
		if (s.loading_text) $(widget).append(loading);
		$(widget).bind("load", function(){
			$.getJSON(build_url(), function(data){
				if (s.loading_text) loading.remove();
				if (s.intro_text) list.before(intro);
				list.empty();
				var tweets = (data.results || data);
				$.each(tweets, function(i,item){
					// auto join text based on verb tense and content
					if (s.join_text == "auto") {
						if (item.text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
							var join_text = s.auto_join_text_reply;
						} else if (item.text.match(/(^\w+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+) .*/i)) {
							var join_text = s.auto_join_text_url;
						} else if (item.text.match(/^((\w+ed)|just) .*/im)) {
							var join_text = s.auto_join_text_ed;
						} else if (item.text.match(/^(\w*ing) .*/i)) {
							var join_text = s.auto_join_text_ing;
						} else {
							var join_text = s.auto_join_text_default;
						}
					} else {
						var join_text = s.join_text;
					};
					
					var from_user = item.from_user || item.user.screen_name;
					var profile_image_url = item.profile_image_url || item.user.profile_image_url;
					var join_template = '<span class="tweet_join"> '+join_text+' </span>';
					var join = ((s.join_text) ? join_template : ' ');
					var avatar_template = '<a class="tweet_avatar" href="http://twitter.com/'+from_user+'"><img src="'+profile_image_url+'" height="'+s.avatar_size+'" width="'+s.avatar_size+'" alt="'+from_user+'\'s avatar" title="'+from_user+'\'s avatar" border="0"/></a>';
					var avatar = (s.avatar_size ? avatar_template : '');
					var date = '<span class="tweet_time"><a href="http://twitter.com/'+from_user+'/statuses/'+item.id+'" title="view tweet on twitter">'+relative_time(item.created_at)+'</a></span>';
					var text = '<span class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0]+ '</span>';
					
					// until we create a template option, arrange the items below to alter a tweet's display.
					list.append('<li>' + avatar + date + join + text + '</li>');
					
					list.children('li:first').addClass('tweet_first');
					list.children('li:odd').addClass('tweet_even');
					list.children('li:even').addClass('tweet_odd');
				});
				if (s.outro_text) list.after(outro);
				$(widget).trigger("loaded").trigger((tweets.length == 0 ? "empty" : "full"));
				if (s.refresh_interval) {
					window.setTimeout(function() { $(widget).trigger("load"); }, 1000 * s.refresh_interval);
				};
			});
			}).trigger("load");
		});
	};
})(jQuery);