(function($) {



  $.fn.tweet = function(o){

    var s = $.extend({

      username: null,                           // [string or array] required unless using the 'query' option; one or more twitter screen names

      list: null,                               // [string]   optional name of list belonging to username

      favorites: false,                         // [boolean]  display the user's favorites instead of his tweets

      query: null,                              // [string]   optional search query

      avatar_size: null,                        // [integer]  height and width of avatar if displayed (48px max)

      count: 1,                                 // [integer]  how many tweets to display?

      fetch: null,                              // [integer]  how many tweets to fetch via the API (set this higher than 'count' if using the 'filter' option)

      retweets: true,                           // [boolean]  whether to fetch (official) retweets (not supported in all display modes)

      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

      refresh_interval: null ,                  // [integer]  optional number of seconds after which to reload tweets

      twitter_url: "twitter.com",               // [string]   custom twitter url, if any (apigee, etc.)

      twitter_api_url: "api.twitter.com",       // [string]   custom twitter api url, if any (apigee, etc.)

      twitter_search_url: "search.twitter.com", // [string]   custom twitter search url, if any (apigee, etc.)

      template: "{avatar}{text}{join}{time}",   // [string or function] template used to construct each tweet <li> - see code for available vars

      comparator: function(tweet1, tweet2) {    // [function] comparator used to sort tweets (see Array.sort)

        return tweet2["tweet_time"] - tweet1["tweet_time"];

      },

      filter: function(tweet) {                 // [function] whether or not to include a particular tweet (be sure to also set 'fetch')

        return true;

      }

    }, o);



    $.fn.extend({

      linkUrl: function() {

        var returning = [];

        // See http://daringfireball.net/2010/07/improved_regex_for_matching_urls

        var regexp = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/gi;

        this.each(function() {

          returning.push(this.replace(regexp,

                                      function(match) {

                                        var url = (/^[a-z]+:/i).test(match) ? match : "http://"+match;

                                        return "<a href=\""+url+"\">"+match+"</a>";

                                      }));

        });

        return $(returning);

      },

      linkUser: function() {

        var returning = [];

        var regexp = /[\@]+(\w+)/gi;

        this.each(function() {

          returning.push(this.replace(regexp,"@<a href=\"http://"+s.twitter_url+"/$1\">$1</a>"));

        });

        return $(returning);

      },

      linkHash: function() {

        var returning = [];

        // Support various latin1 (\u00**) and arabic (\u06**) alphanumeric chars

        var regexp = /(?:^| )[\#]+([\w\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff\u0600-\u06ff]+)/gi;

        var usercond = (s.username && s.username.length == 1) ? '&from='+s.username.join("%2BOR%2B") : '';

        this.each(function() {

          returning.push(this.replace(regexp, ' <a href="http://'+s.twitter_search_url+'/search?q=&tag=$1&lang=all'+usercond+'">#$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(date) {

      var relative_to = (arguments.length > 1) ? arguments[1] : new Date();

      var delta = parseInt((relative_to.getTime() - date) / 1000, 10);

      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:');

      var count = (s.fetch === null) ? s.count : s.fetch;

      if (s.list) {

        return proto+"//"+s.twitter_api_url+"/1/"+s.username[0]+"/lists/"+s.list+"/statuses.json?per_page="+count+"&callback=?";

      } else if (s.favorites) {

        return proto+"//"+s.twitter_api_url+"/favorites/"+s.username[0]+".json?count="+s.count+"&callback=?";

      } else if (s.query === null && s.username.length == 1) {

        return proto+'//'+s.twitter_api_url+'/1/statuses/user_timeline.json?screen_name='+s.username[0]+'&count='+count+(s.retweets ? '&include_rts=1' : '')+'&callback=?';

      } else {

        var query = (s.query || 'from:'+s.username.join(' OR from:'));

        return proto+'//'+s.twitter_search_url+'/search.json?&q='+encodeURIComponent(query)+'&rpp='+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(s.username && typeof(s.username) == "string"){

        s.username = [s.username];

      }



      var expand_template = function(info) {

        if (typeof s.template === "string") {

          var result = s.template;

          for(var key in info) {

            var val = info[key];

            result = result.replace(new RegExp('{'+key+'}','g'), val === null ? '' : val);

          }

          return result;

        } else return s.template(info);

      };



      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 = $.map(data.results || data, function(item){

            var join_text = s.join_text;



            // 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;

              }

            }



            // Basic building blocks for constructing tweet <li> using a template

            var screen_name = item.from_user || item.user.screen_name;

            var source = item.source;

            var user_url = "http://"+s.twitter_url+"/"+screen_name;

            var avatar_size = s.avatar_size;

            var avatar_url = item.profile_image_url || item.user.profile_image_url;

            var tweet_url = "http://"+s.twitter_url+"/"+screen_name+"/status/"+item.id_str;

            var retweet = (typeof(item.retweeted_status) != 'undefined');

            var retweeted_screen_name = retweet ? item.retweeted_status.user.screen_name : null;

            var tweet_time = parse_date(item.created_at);

            var tweet_relative_time = relative_time(tweet_time);

            var tweet_raw_text = retweet ? ('RT @'+retweeted_screen_name+' '+item.retweeted_status.text) : item.text; // avoid '...' in long retweets

            var tweet_text = $([tweet_raw_text]).linkUrl().linkUser().linkHash()[0];



            // Default spans, and pre-formatted blocks for common layouts

            var user = '<a class="tweet_user" href="'+user_url+'">'+screen_name+'</a>';

            var join = ((s.join_text) ? ('<span class="tweet_join"> '+join_text+' </span>') : ' ');

            var avatar = (avatar_size ?

                          ('<a class="tweet_avatar" href="'+user_url+'"><img src="'+avatar_url+

                           '" height="'+avatar_size+'" width="'+avatar_size+

                           '" alt="'+screen_name+'\'s avatar" title="'+screen_name+'\'s avatar" border="0"/></a>') : '');

            var text = '<span class="tweet_text">'+$([tweet_text]).makeHeart().capAwesome().capEpic()[0]+ '</span>';

			var time = '<span class="tweet_time"><a href="'+tweet_url+'" title="view tweet on twitter">'+tweet_relative_time+'</a></span>';



            return { item: item, // For advanced users who want to dig out other info

                     screen_name: screen_name,

                     user_url: user_url,

                     avatar_size: avatar_size,

                     avatar_url: avatar_url,

                     source: source,

                     tweet_url: tweet_url,

                     tweet_time: tweet_time,

                     tweet_relative_time: tweet_relative_time,

                     tweet_raw_text: tweet_raw_text,

                     tweet_text: tweet_text,

                     retweet: retweet,

                     retweeted_screen_name: retweeted_screen_name,

                     user: user,

                     join: join,

                     avatar: avatar,

                     time: time,

                     text: text

                   };

          });



          tweets = $.grep(tweets, s.filter).slice(0, s.count);

          list.append($.map(tweets.sort(s.comparator),

                            function(t) { return "<li>" + expand_template(t) + "</li>"; }).join('')).

              children('li:first').addClass('tweet_first').end().

              children('li:odd').addClass('tweet_even').end().

              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);