<?php

$diggs = rand(1,999);

//----------------------------------
// Set png Headers
//----------------------------------

Header('Content-type: image/gif');
Header('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
Header('Expires: Thu, 22 Jun 1990 08:52:00 GMT');
Header('Pragma: no-cache');

$file = 'sigs/'. strtolower(str_replace(' ', '_',urldecode($_GET['username']))) .'.gif';

if (!isset($_GET['template'])) {
	$template = 'templates/default.xml';
} else {
	if (file_exists('templates/' . strtolower($_GET['template']) . 'xml')) {
		$template = 'templates/' . strtolower($_GET['template']) . 'xml';
	} else {
		$template = 'templates/default.xml';
	}
}

$modify_time = @filemtime($file);
if($modify_time !== false && time() - $modify_time <= 600)
{
     echo file_get_contents($file);
     die();
}

//----------------------------------
// Require Digg API and sig theme
//----------------------------------

require_once('diggAPI.php');
require_once('themes/digg/index.php');
require_once('XMLParser.php');
$user = new diggAPI($_GET['username']);

//----------------------------------
// Parse XML template file
//----------------------------------
$xml = file_get_contents($template);
$parser =& new XMLParser($xml, 'raw', 1);
$tree = $parser->getTree();

$base_image = (isset($tree['TEMPLATE']['BASEIMAGE'])) ? 'themes/digg/' . $tree['TEMPLATE']['BASEIMAGE'] : 'themes/digg/default.png';
$strings = $tree['TEMPLATE']['STRING'];

//----------------------------------
// Get Avatar extention
//----------------------------------
$avatar['image'] = $user->getAvatar();
$avatar['ext'] = strtolower(substr($avatar['image'], -3));

//----------------------------------
// Create Images
//----------------------------------
$image = imagecreatefrompng($base_image);

switch($avatar['ext'])
{
	case 'png':
		$avatar = imagecreatefrompng($avatar['image']);
		break;
	case 'jpg':
		$avatar = imagecreatefromjpeg($avatar['image']);
		break;
	case 'gif':
		$avatar = imagecreatefrompng('http://digg.com/img/user-large/user-default.png');
		break;
}


foreach($sig['colors'] as $color => $rgb)
{
    $text['color'][$color] = imagecolorallocate($image, $rgb['r'], $rgb['g'], $rgb['b']);
}



foreach($sig['font'] as $fontn => $ffile)
{
    $font[$fontn] = $ffile;
}

//----------------------------------
// Design Image
//----------------------------------
foreach ($strings as $string) {
	$method = $string['METHOD']['VALUE'];
	$prefix = $string['PREFIX']['VALUE'];
	$x_pos = $string['X']['VALUE'];
	$y_pos = $string['Y']['VALUE'];
	$font_file = 'themes/' . $string['FONTFILE']['VALUE'];
	$font_size = $string['FONTSIZE']['VALUE'];
	$font_rgb = explode(':', $string['FONTCOLOR']['VALUE']);
	$max_length = $string['MAXLENGTH']['VALUE'];
	
	$color = imagecolorallocate($image, $font_rgb[0], $font_rgb[1], $font_rgb[2]);
	$text = $user->$method();
	if (!empty($max_length)) {
		if (strlen($text) > $max_length) {
			$text = substr($text, 0, $max_length) . '...';
		}
	}
	if (!empty($prefix)) {
		$text = $prefix . $text;
	}
	imagettftext($image, $font_size, 0, $x_pos, $y_pos, $color, $font_file, $text);
}

if (isset($tree['TEMPLATE']['DIGGME'])) {
	$chars = array(9, 6, 10, 10, 10, 10, 10, 9, 9, 10);
	$offset = 0;
	for ($i = 0; $i < strlen($diggs); $i++) {
	    $num = (int)$diggs[$i];
	    $offset = $offset + $chars[$num];
	}

	$x_num = $tree['TEMPLATE']['DIGGME']['XNUM'];
	$y_num = $tree['TEMPLATE']['DIGGME']['YNUM'];
	
	$x_word = $tree['TEMPLATE']['DIGGME']['XWORD'];
	$y_word = $tree['TEMPLATE']['DIGGME']['YWORD'];
	
	$offset = $offset + (strlen($diggs) * 2);
	imagettftext($image, 15, 0, $x_num - ($offset / 2), $y_num, $text['color']['brown'], $font['arial'], $diggs);
	imagettftext($image, 8, 0, $x_word, $y_word, $text['color']['blue'], $font['arial'], 'digg me');
}


if (isset($tree['TEMPLATE']['AVATAR'])) {
	$x_pos = $tree['TEMPLATE']['AVATAR']['X'];
	$y_pos = $tree['TEMPLATE']['AVATAR']['Y'];
	imagecopymerge($image, $avatar, $x_pos, $y_pos, 0, 0, 48, 35, 100);
}


//----------------------------------
// Output/Destroy Image
//----------------------------------
imagegif($image, $file);
imagegif($image);
imagedestroy($image);

?>