// Taken from Twitter API for Blogger
// Copy current as of 13 October 2008
// Original available at http://twitter.com/javascripts/blogger.js

function twitterCallback2(twitters) {
	var statusHTML = [];
	for (var i=0; i<twitters.length; i++){
		var username = twitters[i].user.screen_name;
		var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
			return '<a href="'+url+'">'+url+'</a>';
		}).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
			return  reply.charAt(0)+'<a href="http://www.twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
		});
		statusHTML.push('<li><span>'+status+'</span> <a class="timeAgo" href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'">'+relative_time(twitters[i].created_at)+'</a></li>');
	}
	document.getElementById('twitter_update_list').innerHTML = statusHTML.join('');
}

function relative_time(time_value) {
  var values = time_value.split(" ");
  time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
  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);
  delta = delta + (relative_to.getTimezoneOffset() * 60);

  var str;
  
  if (delta < 60) {
    str = 'less than a minute ago';
  } else if(delta < 120) {
    str = 'about a minute ago';
  } else if(delta < (60*60)) {
    str = (parseInt(delta / 60)).toString() + ' minutes ago';
  } else if(delta < (120*60)) {
    str = 'about an hour ago';
  } else if(delta < (24*60*60)) {
    str = 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
  } else if(delta < (48*60*60)) {
    str = '1 day ago';
  } else {
    str = (parseInt(delta / 86400)).toString() + ' days ago';
  }
  
  var zeropad = function (num) { return ((num < 10) ? '0' : '') + num; }
  
  var date_object = new Date(parsed_date + (-(relative_to.getTimezoneOffset())*60*1000));
  
  if (relative_to.getTimezoneOffset() < 0) { var symb = "+"; } else { var symb = "-"; }
  var offsetHrs = zeropad( Math.abs(relative_to.getTimezoneOffset()) / 60 );
  var offsetMin = zeropad( Math.abs(relative_to.getTimezoneOffset()) - (offsetHrs*60) );
  var tzDesig = symb + offsetHrs + ":" + offsetMin;
  
  return "<abbr title='" + date_object.toISO8601String(5,tzDesig) + "'>" + str + "</abbr>";
}



// Date.prototype.toISO8601String
// taken from http://delete.me.uk/2005/03/iso8601.html
// 16 October 2008

Date.prototype.toISO8601String = function (format, offset) {
    /* accepted values for the format [1-6]:
     1 Year:
       YYYY (eg 1997)
     2 Year and month:
       YYYY-MM (eg 1997-07)
     3 Complete date:
       YYYY-MM-DD (eg 1997-07-16)
     4 Complete date plus hours and minutes:
       YYYY-MM-DDThh:mmTZD (eg 1997-07-16T19:20+01:00)
     5 Complete date plus hours, minutes and seconds:
       YYYY-MM-DDThh:mm:ssTZD (eg 1997-07-16T19:20:30+01:00)
     6 Complete date plus hours, minutes, seconds and a decimal
       fraction of a second
       YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00)
    */
    if (!format) { var format = 6; }
    if (!offset) {
        var offset = 'Z';
        var date = this;
    } else {
        var d = offset.match(/([-+])([0-9]{2}):([0-9]{2})/);
        var offsetnum = (Number(d[2]) * 60) + Number(d[3]);
        offsetnum *= ((d[1] == '-') ? -1 : 1);
        var date = new Date(Number(Number(this) + (offsetnum * 60000)));
    }

    var zeropad = function (num) { return ((num < 10) ? '0' : '') + num; }

    var str = "";
    str += date.getUTCFullYear();
    if (format > 1) { str += "-" + zeropad(date.getUTCMonth() + 1); }
    if (format > 2) { str += "-" + zeropad(date.getUTCDate()); }
    if (format > 3) {
        str += "T" + zeropad(date.getUTCHours()) +
               ":" + zeropad(date.getUTCMinutes());
    }
    if (format > 5) {
        var secs = Number(date.getUTCSeconds() + "." +
                   ((date.getUTCMilliseconds() < 100) ? '0' : '') +
                   zeropad(date.getUTCMilliseconds()));
        str += ":" + zeropad(secs);
    } else if (format > 4) { str += ":" + zeropad(date.getUTCSeconds()); }

    if (format > 3) { str += offset; }
    return str;
}