(function($) {
 
  $.fn.tweet = function(o){
    var s = {
      username: ["cballou"],                  // [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: 32,                        // [integer]  height and width of avatar if displayed (48px max)
      count: 10,                              // [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: "loading...",             // [string]   optional loading text, displayed while tweets load
      query: null                             // [string]   optional search query
    };
    
    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 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);
      var pluralize = function (singular, n) {
        return '' + n + ' ' + singular + (n == 1 ? '' : 's');
      };
      if(delta < 60) {
      return 'less than a minute ago';
      } else if(delta < (60*60)) {
      return 'about ' + pluralize("minute", parseInt(delta / 60)) + ' ago';
      } else if(delta < (24*60*60)) {
      return 'about ' + pluralize("hour", parseInt(delta / 3600)) + ' ago';
      } else {
      return 'about ' + pluralize("day", parseInt(delta / 86400)) + ' ago';
      }
    }

    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+'//twitter.com/status/user_timeline/'+s.username[0]+'.json?count='+s.count+'&callback=?';
      } else {
        var query = (s.query || 'from:'+s.username.join('%20OR%20from:'));
        return proto+'//search.twitter.com/search.json?&q='+query+'&rpp='+s.count+'&callback=?';
      }
    }

    return this.each(function() {
      var $elem, header, list, intro, outro, loading, output = [];
      
      // globally set $elem
      $elem = $(this);
      
      // set loading message
      loading = $('<p class="loading">'+s.loading_text+'</p>');
      if (s.loading_text)
        $(this).find('#content').append(loading);

      if (typeof(s.username) == "string")
        s.username = [s.username];
      
      // request tweets from twitter
      $.getJSON(build_url(), function(data) {
        
        var first = true;
        
        $.each((data.results || data), function(i, item) {
          var from_user, profile_image_url, join_text, join_template, join, date, text;
          
          from_user = item.from_user || item.user.screen_name;
          profile_image_url = item.profile_image_url || item.user.profile_image_url;

          if (first) {
            header = '<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+'" border="0"/>'+from_user+' says: </a>';
          }
          
          // auto join text based on verb tense and content
          if (s.join_text == "auto") {
            if (item.text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
              join_text = s.auto_join_text_reply;
            } else if (item.text.match(/(^\w+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+) .*/i)) {
              join_text = s.auto_join_text_url;
            } else if (item.text.match(/^((\w+ed)|just) .*/im)) {
              join_text = s.auto_join_text_ed;
            } else if (item.text.match(/^(\w*ing) .*/i)) {
              join_text = s.auto_join_text_ing;
            } else {
              join_text = s.auto_join_text_default;
            }
          } else {
            join_text = s.join_text;
          }

          join_template = '<span class="tweet_join"> '+join_text+' </span>';
          join = ((s.join_text) ? join_template : ' ');
          text = '<span class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0]+ '</span>';
          date = '<span class="date">'+relative_time(item.created_at)+'</span>';
          if (first) {
            output.push('<li class="first">');
            first = false;
          } else {
            output.push('<li>');
          }
          output.push(header + join + text + date);
          output.push('</li>');
        });
        
        // remove preloader
        if (s.loading_text)
          loading.fadeOut('fast').remove();
          
        // display tweets
        $elem.find('.tweets').html(output.join(''));
        
        return false;
        
      });
      
      return false;
      
    });

  };
})(jQuery);