// thanks: http://tutorialzine.com/2009/10/jquery-twitter-ticker/

var tweetUsers = ['socialinc', 'jolante', 'sanneheerink', 'sonjaloth', 'edwinres', 'jwkoers', 'sabrinajurriens'];
// The twitter accounts that will be included in the ticker

var buildString = "";

jQuery(document).ready(function() {

  // Build the search api parameters
  for  (var i=0; i<tweetUsers.length; i++) {
	if (i> 0) { buildString += '+OR+'; }
      buildString += 'from:'+tweetUsers[i];
    }

    // Creating a new script element
    var fileref = document.createElement('script');

    fileref.setAttribute("type","text/javascript");
    // Setting its src to the search API URL; We provide TweetTick as a callback
    fileref.setAttribute("src", "http://search.twitter.com/search.json?q="+buildString+"&callback=TweetTick&rpp=100");

    // Appending it to the head of the page and thus executing it
    document.getElementsByTagName("head")[0].appendChild(fileref);
});

// This is the callback function
function TweetTick(ob) {

  var container = jQuery('#home_twitter_content');

  // Removing the loading gif animation
  container.html('');

  // maximum of 3 tweets on frontpage
  var _max = 3;

  // ob contains all the tweets
  jQuery(ob.results).each( function(el) {

    var _tweettxtlc = this.text.toLowerCase();
    if (('socialinc' == this.from_user.toLowerCase()) || (_tweettxtlc.indexOf('#socialinc') > 0)) {

      var str  = '	<div class="tweet">'
		       + '      <div class="avatar">'
		       + '        <a href="http://twitter.com/'+this.from_user+'" target="_blank">'
		       + '          <img src="'+this.profile_image_url+'" alt="'+this.from_user+'" />'
		       + '        </a>'
		       + '        <br />'
		       + '        <a href="http://twitter.com/'+this.from_user+'" target="_blank">'+this.from_user+'</a>'
		       + '      </div>'
		       + '      <div class="txt">'+formatTwitString(this.text)+'</div>'
		       + '    </div>';

      // Adding the tweet to the container
      container.append(str);

      _max--;
      if (0 == _max) {
        return false;
      }
    }
  });
}

function formatTwitString(str)
{
	// This function formats the tweet body text

	str=' '+str;

	str = str.replace(/((ftp|https?):\/\/([-\w\.]+)+(:\d+)?(\/([\w/_\.]*(\?\S+)?)?)?)/gm,'<a href="$1" target="_blank">$1</a>');
	// The tweets arrive as plain text, so we replace all the textual URLs with hyperlinks

	str = str.replace(/([^\w])\@([\w\-]+)/gm,'$1@<a href="http://twitter.com/$2" target="_blank">$2</a>');
	// Replace the mentions

	str = str.replace(/([^\w])\#([\w\-]+)/gm,'$1<a href="http://twitter.com/search?q=%23$2" target="_blank">#$2</a>');
	// Replace the hashtags

	return str;
}

function relativeTime(pastTime)
{
	// Generate a JavaScript relative time for the tweets

	var origStamp = Date.parse(pastTime);
	var curDate = new Date();
	var currentStamp = curDate.getTime();
	var difference = parseInt((currentStamp - origStamp)/1000);

	if(difference < 0) return false;

	if(difference <= 5)			return "Just now";
	if(difference <= 20)			return "Seconds ago";
	if(difference <= 60)			return "A minute ago";
	if(difference < 3600)		return parseInt(difference/60)+" minutes ago";
	if(difference <= 1.5*3600) 	return "One hour ago";
	if(difference < 23.5*3600)	return Math.round(difference/3600)+" hours ago";
	if(difference < 1.5*24*3600)	return "One day ago";

	// If the tweet is older than a day, show an absolute date/time value;

	var dateArr = pastTime.split(' ');

	return dateArr[4].replace(/\:\d+$/,'')+' '+dateArr[2]+' '+dateArr[1]+
	(dateArr[3]!=curDate.getFullYear()?' '+dateArr[3]:'');
}