(function($) {
 
  $.fn.tweet = function(o){
  
    var s = $.extend({}, $.fn.tweet.defaults, 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\" target=\"_blank\">$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\" target=\"_blank\">@$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")+'" target=\"_blank\">#$1</a> '))
        });
        return $(returning);
      }
    });

    function relative_time(time_value) {
      var parsed_date = Date.parse(time_value);
      var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
      var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
      if(delta < 60) {
      return 'less than a minute ago';
      } else if(delta < 120) {
      return 'about a minute ago';
      } else if(delta < (45*60)) {
      return (parseInt(delta / 60)).toString() + ' minutes ago';
      } else if(delta < (90*60)) {
      return 'about an hour ago';
      } else if(delta < (24*60*60)) {
      return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
      } else if(delta < (48*60*60)) {
      return '1 day ago';
      } else {
      return (parseInt(delta / 86400)).toString() + ' days ago';
      }
    }

    return this.each(function(){
      var list = $('<ul id="tweet">').appendTo(this);
      var loading = $('<ul id="tweet"><li>'+s.loading_text+'</li></ul>');
      if(typeof(s.username) == "string"){
        s.username = [s.username];
      }
      var query = '';
      if(s.query) {
        query += 'q='+s.query;
      }
      query += '&q=from:'+s.username.join('%20OR%20from:');
      var url = 'http://search.twitter.com/search.json?&'+query+'&rpp='+s.count+'&callback=?';
      if (s.loading_text) $(this).append(loading);
      $.getJSON(url, function(data){
        if (s.loading_text) loading.remove();
        $.each(data.results, function(i,item){
          var date = '<a href="http://twitter.com/'+item.from_user+'/statuses/'+item.id+'" title="view tweet on twitter" target="_blank" class="time_ago">'+relative_time(item.created_at)+'</a>';
          var text = '<span class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash()[0]+ '</span>';
          
          // until I create a template option, arrange the items below to alter a tweet's display.
          list.append('<li class="clearfix">' + text + '<br class="clear" />' + date + '</li>');

        });
        
      });

    });
  };
  
  // Defualts
  $.fn.tweet.defaults = {
		username: "macappstorm",
    count: 5,
    loading_text: "loading tweets...",
    query: null
	};
	
})(jQuery);