var statusHTML = [];
var filter_in_list = [];

function showTweets()
{
    document.getElementById('twitter_update_list').innerHTML = statusHTML.join('\n');
}

function addExternalTweets( tweets )
{
	for (var i=0; i<tweets.length; i++)
    {   
	    var replyto = tweets[i].in_reply_to_user_id;
		if( replyto != null )
		    continue;
			
        var username = tweets[i].user.screen_name;
        var status = tweets[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://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';});

		var entry = { created_at: tweets[i].created_at, id: tweets[i].id, status: status };
		
        filter_in_list.push(entry);
    }
}

function twitterCallback2(twitters)
{
    var userimage = twitters[0].user.profile_image_url
	var ext = 0;
	
    for (var i=0; i<twitters.length; i++)
    {   
	    var replyto = twitters[i].in_reply_to_user_id;
		if( replyto != null )
		    continue;
			
	    while( filter_in_list.length > ext && 
		       time_compare( filter_in_list[ext].created_at , twitters[i].created_at ) )
		{
			statusHTML.push( '<li><img src=\''+userimage+'\'><span class=\'ststusmsg\'>'+filter_in_list[ext].status+'</span> <a class="timestamp" href="http://twitter.com/'+username+'/statuses/'+filter_in_list[ext].id+'">'+relative_time(filter_in_list[ext].created_at)+'</a><div/></li>' );
			ext++;
		}		
			
        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://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';});
        statusHTML.push('<li><img src=\''+userimage+'\'><span class=\'ststusmsg\'>'+status+'</span> <a class="timestamp" href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'">'+relative_time(twitters[i].created_at)+'</a><div/></li>')
    }
    
    if( document.getElementById('twitter_update_list') )
    {
        document.getElementById('twitter_update_list').innerHTML = statusHTML.join('\n');
    }
} 

function time_compare( time1, time2 )
{
    var values = time1.split(" ");
    time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
    var parsed_date1 = Date.parse(time_value);

    values = time2.split(" ");
    time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
    var parsed_date2 = Date.parse(time_value);
	
	
	if( parsed_date1 > parsed_date2 )
	{
	    return true;
	}
	
	return false;
}


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);

    if (delta < 60) 
    {
        return 'less than a minute ago';
    } 
    else if(delta < 120) 
    {
        return 'about a minute ago';
    } 
    else if(delta < (60*60)) 
    {
        return (parseInt(delta / 60)).toString() + ' minutes ago';
    } 
    else if(delta < (120*60)) 
    {
        return 'about an hour ago';
    } 
    else if(delta < (24*60*60)) 
    {
        return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
    } 
    else if(delta < (48*60*60)) 
    {
        return '1 day ago';
    } 
    else 
    {
        return (parseInt(delta / 86400)).toString() + ' days ago';
    }
}