(function($) {
 
  $.fn.tweet = function(o){
    var s = {
      username: ["Pemco"],              // [string]   required, unless you want to display our tweets. :) it can be an array, just do ["username1","username2","etc"]
      avatar_size: 0,                      // [integer]  height and width of avatar if displayed (48px max)
      count: 100,                               // [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"
      loading_text: "Loading Pemco tweets...",      // [string]   optional loading text, displayed while tweets load
      query: null                             // [string]   optional search query
    };

    $.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(/(a|A)wesome/gi, 'AWESOME'))
        });
        return $(returning);
      },
      capEpic: function() {
        var returning = [];
        this.each(function() {
          returning.push(this.replace(/(e|E)pic/gi, 'EPIC'))
        });
        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);
      if(delta < 120) {
      	return 'A minute ago';
      } else if(delta < (45*60)) {
      	return (parseInt(delta / 60)).toString() + ' minutes ago';
      } else if(delta < (90*90)) {
     	return 'An hour ago';
      } else if(delta < (24*60*60)) {
        return (parseInt(delta / 3600)).toString() + ' hours ago';
      } else if(delta < (48*60*60)) {
      	return 'Yesterday';
      } else {
      	return (parseInt(delta / 86400)).toString() + ' days ago';
      }
    }

	/* BUILD THE LIST */
    if(o) $.extend(s, o);
    return this.each(function(){
      var list = $('<ul class="tweet_list" id="tweet_list">').appendTo(this);
      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];
      }
      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();
        if (s.intro_text) list.before(intro);
        $.each(data.results, function(i,item){
          var date = '<a href="http://twitter.com/'+item.from_user+'/statuses/'+item.id+'" title="view tweet on twitter">'+relative_time(item.created_at)+'</a>';
          var text = '<span class="tweet_text">' +$([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0]+ '</span>';
		  var source = item.source;
          var sourceHTML = source.replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&quot;/g,'').replace(/&amp;/g,'&');
          // Build each LI
          list.append('<li>' + text + '<br/><span class="TwitterDate">- ' + date + ' from '+ sourceHTML + '</span><br clear="all"></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);


	/* SLIDE THE LIST */
    var Y = o * 1; // 
    var NumberOfTweets = data.results.length // number of tweets in the list
        for (var i = 0; i < NumberOfTweets; i++) {
        var j = i + 1;
        $('#Tweet' + [j]).css({ 'top': (i * o) });
    }

    var InitTop = 0; // OnLoad Top position
    var CurrTop = InitTop; // Set initial Top Position
    var NewTop; //new Top Position (reset in functions)

    var InitPos = 1; // OnLoad initial Position
    var CurrPos = InitPos; // Set initial Current Position
    var NewPos; // new Position (reset in functions)

    $('#TwitterDownLink').click(function() {
        NewTop = CurrTop - Y; // Add to slide's top value
        $('#tweet_list').animate({ 'top': [NewTop] + 'px' }, 1200); // Slide UL up (final value is Time, in milliseconds, for the slide)
        CurrTop = NewTop; // reset slide's Top value for next click
        NewPos = CurrPos + 1; // Add to current position in the queue
        CurrPos = NewPos; // Reset position
        // When at end of list, hide down button
        if (CurrPos == NumberOfTweets) {
            $('#TwitterDownLink').css({ 'visibility': 'hidden' })
        }
        // When NOT at end of list, show up button
        if (CurrPos < NumberOfTweets) {
            $('#TwitterUpLink').css({ 'visibility': 'visible' })
        }
    });

    $('#TwitterUpLink').click(function() {
        NewTop = CurrTop + Y; // Subtract from slide's top value
        $('#tweet_list').animate({ 'top': [NewTop] + 'px' }, 1200); // Slide UL up (final value is Time, in milliseconds, for the slide)
        CurrTop = NewTop; // Reset slide's Top value for next click
        NewPos = CurrPos - 1; // Subtract from current position in the queue
        CurrPos = NewPos; // Reset position
        // When at Start of list, hide up button
        if (CurrPos == 1) {
            $('#TwitterUpLink').css({ 'visibility': 'hidden' })
        }
        // When NOT at start of list, show down button
        if (CurrPos > 1) {
            $('#TwitterDownLink').css({ 'visibility': 'visible' })
        }
    });




      });


    });


  };

})(jQuery);