(function($) {
 
  $.fn.tweet = function(o){
    var s = {
      username: ["beeldvang"],              // [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:  "auto",                       // [string]   optional text in between date and tweet, try setting to "auto"
      auto_join_text_default: "",      // [string]   auto text for non verb: "i said" bullocks
      auto_join_text_ed: "",                 // [string]   auto text for past tense: "i" surfed
      auto_join_text_ing: "",             // [string]   auto tense for present tense: "i was" surfing
      auto_join_text_reply: "",   // [string]   auto tense for replies: "i replied to" @someone "with"
      auto_join_text_url: "", // [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\" 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);
      },
      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 + ' seconden geleden';
      } else if(delta < 120) {
	r = 'een minuut geleden';
      } else if(delta < (45*60)) {
	r = (parseInt(delta / 60, 10)).toString() + ' minuten geleden';
      } else if(delta < (2*60*60)) {
	r = 'een uur geleden';
      } else if(delta < (24*60*60)) {
	r = '' + (parseInt(delta / 3600, 10)).toString() + ' uur geleden';
      } else if(delta < (48*60*60)) {
	r = 'een dag geleden';
      } else {
	r = (parseInt(delta / 86400, 10)).toString() + ' dagen geleden';
      }
      return 'ongeveer ' + r;
    }
	
	var dateFormat = function () {
		var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
			timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
			timezoneClip = /[^-+\dA-Z]/g,
			pad = function (val, len) {
				val = String(val);
				len = len || 2;
				while (val.length < len) val = "0" + val;
				return val;
			};
	
		// Regexes and supporting functions are cached through closure
		return function (date, mask, utc) {
			var dF = dateFormat;
	
			// You can't provide utc if you skip other args (use the "UTC:" mask prefix)
			if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
				mask = date;
				date = undefined;
			}
	
			// Passing date through Date applies Date.parse, if necessary
			date = date ? new Date(date) : new Date;
			if (isNaN(date)) throw SyntaxError("invalid date");
	
			mask = String(dF.masks[mask] || mask || dF.masks["default"]);
	
			// Allow setting the utc argument via the mask
			if (mask.slice(0, 4) == "UTC:") {
				mask = mask.slice(4);
				utc = true;
			}
	
			var	_ = utc ? "getUTC" : "get",
				d = date[_ + "Date"](),
				D = date[_ + "Day"](),
				m = date[_ + "Month"](),
				y = date[_ + "FullYear"](),
				H = date[_ + "Hours"](),
				M = date[_ + "Minutes"](),
				s = date[_ + "Seconds"](),
				L = date[_ + "Milliseconds"](),
				o = utc ? 0 : date.getTimezoneOffset(),
				flags = {
					d:    d,
					dd:   pad(d),
					ddd:  dF.i18n.dayNames[D],
					dddd: dF.i18n.dayNames[D + 7],
					m:    m + 1,
					mm:   pad(m + 1),
					mmm:  dF.i18n.monthNames[m],
					mmmm: dF.i18n.monthNames[m + 12],
					yy:   String(y).slice(2),
					yyyy: y,
					h:    H % 12 || 12,
					hh:   pad(H % 12 || 12),
					H:    H,
					HH:   pad(H),
					M:    M,
					MM:   pad(M),
					s:    s,
					ss:   pad(s),
					l:    pad(L, 3),
					L:    pad(L > 99 ? Math.round(L / 10) : L),
					t:    H < 12 ? "a"  : "p",
					tt:   H < 12 ? "am" : "pm",
					T:    H < 12 ? "A"  : "P",
					TT:   H < 12 ? "AM" : "PM",
					Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
					o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
					S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
				};
	
			return mask.replace(token, function ($0) {
				return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
			});
		};
	}();
	
	// Some common format strings
	dateFormat.masks = {
		"default":      "h:MM TT mmm dS",
		shortDate:      "m/d/yy",
		mediumDate:     "mmm d, yyyy",
		longDate:       "mmmm d, yyyy",
		fullDate:       "dddd, mmmm d, yyyy",
		shortTime:      "h:MM TT",
		mediumTime:     "h:MM:ss TT",
		longTime:       "h:MM:ss TT Z",
		isoDate:        "yyyy-mm-dd",
		isoTime:        "HH:MM:ss",
		isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
		isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
	};
	
	// Internationalization strings
	dateFormat.i18n = {
		dayNames: [
			"Zo", "Ma", "Di", "Wo", "Do", "Vr", "Za",
			"Zondag", "Maandag", "Dinsdag", "Woensdag", "Donderdag", "Vrijdag", "Zaterdag"
		],
		monthNames: [
			"Jan", "Feb", "Maa", "Apr", "Mei", "Jun", "Jul", "Aug", "Sep", "Okt", "Nov", "Dec",
			"Januari", "Februari", "Maart", "April", "Mei", "Juni", "Juli", "Augustus", "September", "Oktober", "November", "December"
		]
	};
	
	// For convenience...
	Date.prototype.format = function (mask, utc) {
		return dateFormat(this, mask, utc);
	};
	
	function date_time(time_value) {
		var pubDate = new Date(parse_date(time_value));
		var pubDateFormat = dateFormat(pubDate);

		return pubDateFormat;
	}

    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+'" target="_blank"><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 = '<div class="tweet_time">'+relative_time(item.created_at)+'</div>';
            var text = '<div class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0]+ '</div>';
   
            // until we create a template option, arrange the items below to alter a tweet's display.
            list.append('<li>' + avatar + join + text + date + '</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);