/*

jQuery Twitter Plugin
Twitter -> http://tweet.seaofclouds.com/

*/

(function($) {
 
  $.fn.tweet = function(o){
    var s = {
      username: ["envato"],                // [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?
      columns: 3,                               // [integer]  number of columns?
      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
      query: null,                              // [string]   optional search query
      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.)
    };
    
    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 class=\"twit-link\" 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 class=\"twit-link\" href=\"http://"+s.twitter_url+"/$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 class=\"twit-link\" href="http://'+s.twitter_search_url+'/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 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 + ' 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:');
      if (s.list) {
        return proto+"//"+s.twitter_api_url+"/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+'//'+s.twitter_api_url+'/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+'//'+s.twitter_search_url+'/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 twitter_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);
  		  var column = s.columns;
		  
		  
          $.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="author twit-link" target="_blank" href="http://'+s.twitter_url+'/'+from_user+'"><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" class="avatar"/></a> ';
			var user_template 
            var avatar = (s.avatar_size ? avatar_template : '');
            var date = '<span><a class="cloudfw_tweet_date" href="http://'+s.twitter_url+'/'+from_user+'/statuses/'+item.id_str+'" title="view tweet on twitter">'+relative_time(item.created_at)+'</a></span>';
            var text = '<span class="tweet_text"><span class="tweet_user">'+from_user+':</span>' +$([item.text]).linkUrl().linkUser().linkHash().makeHeart().capAwesome().capEpic()[0]+  date +'</span>';
			var ci = ++i;
            // until we create a template option, arrange the items below to alter a tweet's display.		
			
			var is_mod = (ci % column == 0) ? true:false;
			var class__ = (column > 1) ? 'cl cl_'+ column +'': 'cl cl_1';
			if (is_mod) class__ += ' last';
			

      if (s.type == 'widget')
				list.append('<li><span class="twitter-text">' + avatar + text + join + '</span></li>');
			else
				list.append('<li class="'+class__+'"><div class="twitter">' + avatar + '' + text + join + '<div class="cf"></div></li>');
				
			if (is_mod)
        list.append('<div class="cf"></div>');
   
            list.children('li:first').addClass('tweet_first');
            list.children('li:odd').addClass('tweet_even');
            list.children('li:even').addClass('tweet_odd');
          });
		  list.after('<div class="cf"></div>');
          if (s.outro_text) list.after(outro);
          $(widget).trigger("loaded").trigger((tweets.length == 0 ? "empty" : "full"));
		  
		  $(widget).removeClass('twitter-loading');
		  $(widget).find('.twitter-loading').remove();
		  $('#wide-content, #withsidebar-content').trigger('animated_content');
		  
		  
          if (s.refresh_interval) {
            window.setTimeout(function() { $(widget).trigger("load"); }, 1000 * s.refresh_interval);
          };
        });
      }).trigger("load");
    });
  };
})(jQuery);
