<?
session_start();
include_once('includes/sql.php');
include_once('includes/functions.php');
$yearpostfix = date('Y');
$id = empty($_GET['id']) ? '' : $_GET['id'];
if(userallowed()) {
	if(empty($id)) {
		header('Location: /');
	} else {
		$query = mysql_query("SELECT id FROM counters WHERE id = '$id'") or die(mysql_error());
		if(mysql_num_rows($query) == 0) {
			header('Location: /');
		} else {
			if(!file_exists('images/diagrams/'.$id.'.png')) {
				$values = array();
				$c = 0;
				for($x = 14; $x >= 0; $x--) {
				//for($x = 0; $x < 15; $x++) {
					$todaystarted = mktime(0,0,0, date('n'), date('j')-$x-1, date('Y'));
					$yearpostfix = date('Y', $todaystarted);
					@$uniquehitsyesterday = mysql_result(mysql_query("SELECT SUM(hour0 + hour1 + hour2 + hour3 + hour4 + hour5 + hour6 + hour7 + hour8 + hour9 + hour10 + hour11 + hour12 + hour13 + hour14 + hour15 + hour16 + hour17 + hour18 + hour19 + hour20 + hour21 + hour22 + hour23) FROM uniquehits_".$yearpostfix." WHERE counterid = '$id' AND time = $todaystarted"), 0);
					if(empty($uniquehitsyesterday)) {
						$values[] = 0;
					} else {
						$values[] = $uniquehitsyesterday;
						$c++;
					}
				}
				$columns  = count($values);
				$avage = array_sum($values) / $c;
				$width = 450;
				$height = 200;
				$padding = 2;
				$column_width = ($width / $columns);		
				$im        = imagecreate($width + 10, $height + 45);
				$gray      = imagecolorallocate ($im, 255, 102, 0);
				$gray_dark = imagecolorallocate ($im, 130, 128, 154);
				$white     = imagecolorallocate ($im, 255, 255, 255);
				imagefilledrectangle($im, 0, 0, $width + 10, $height + 45, $white);
				$maxv = 0;
				for($i=0; $i < $columns; $i++)$maxv = max($values[$i], $maxv);
				$daynames = array('Man', 'Tir', 'Ons', 'Tor', 'Fre', 'Lør', 'Søn');
				$time = time() - 1382400;
				for($i = 0; $i < $columns; $i++) {
					$time = $time + 86400;
					$column_height = ($height / 100) * (( $values[$i] / $maxv) * 100);
					$x1 = $i * $column_width + 5;
					$y1 = $height - $column_height + 5;
					$x2 = (($i + 1) * $column_width) - $padding + 5;
					$y2 = $height + 5;
					
					imagefilledrectangle($im, $x1, $y1, $x2, $y2, $gray);
					
					putenv('GDFONTPATH=' . realpath('./includes/fonts/'));
					imageline($im, $x2, $y1, $x2, $y2, $gray_dark);
					
					$bbox = imagettfbbox(10, 0, 'visitor2.ttf', $values[$i]);
					$x = $x1 - ($bbox[2] / 2) + 15;
					imagettftext($im, 10, 0, $x, $y1 + 10, $white, 'visitor2.ttf', $values[$i]);
					
					$todaystarted = mktime(0, 0, 0, date('n'), date('j')-$i-1, date('Y'));
					$day = $daynames[date('N', $time)-1];
		
					$bbox = imagettfbbox(10, 0, 'visitor2.ttf', $day);
					$x = $x1 - ($bbox[2] / 2) + 15;
					imagettftext($im, 10, 0, $x, 215, $gray_dark, 'visitor2.ttf', $day);
					$bbox = imagettfbbox(10, 0, 'visitor2.ttf', date("j", $time));
					$x = $x1 - ($bbox[2] / 2) + 15;
					imagettftext($im, 10, 0, $x, 225, $gray_dark, 'visitor2.ttf', date("j", $time));
					
					
				}
				
				$bbox = imagettfbbox(9, 0, 'verdana.ttf', html_entity_decode("©")." L i v e C o u n t e r . d k");
				$x = $width - 3 - $bbox[2];
				imagettftext($im, 9, 0, $x, 240, $gray_dark, 'verdana.ttf', html_entity_decode("©")." L i v e C o u n t e r . d k");
				
				$sitequery = mysql_query("SELECT site FROM counters WHERE id = '$id' LIMIT 1") or die(mysql_error());
				$siterow = mysql_fetch_assoc($sitequery);
				$str = str_split(toolong($siterow['site'], 20));
				for($x = 0; $x < count($str); $x++)$site .= $str[$x].' ';
				imagettftext($im, 9, 0, 15, 240, $gray_dark, 'verdana.ttf', $site);
				
				$y = 205 - ($height / 100) * (($avage / $maxv) * 100);
				for($x = 0; $x < 460; $x++) {
					if($x%4 == 0)imageline($im, $x, $y, $x, $y, $gray_dark);
				}
		
				//header("Content-type: image/png");
				imagepng($im, 'images/diagrams/'.$id.'.png');
				imagedestroy($im);
			}
			header('Location: /images/diagrams/'.$id.'.png');
		}
	}
}
?>