<?

//echo __DIR__;
//exit();

$max_width =450;
$rows = 3;
$max_hight = 500;

//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-2.jpg';
//
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-4.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-5.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-6.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-7.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-8.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-9.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-10.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-11.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-12.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-1.jpg';
//$imgs[] = $_SERVER["DOCUMENT_ROOT"].'/img/foto-3.jpg';

$dir = $_SERVER["DOCUMENT_ROOT"].'/img/';
$imgs = scandir($dir);
//var_dump($imgs);
//exit();


$max_image_width = round($max_width / $rows);
$res_x = $res_y = 0;
$row_hight = 0;
$hights = array(0);
$row = 0;


foreach ($imgs as $k=>$image){
    if ( ($image_params = getimagesize($dir.$image)) && ($image_params[2]== 2)){

        //var_dump($image_params);
        //exit();

        $image_width = min(array($image_params[0], $max_image_width ));
        $ratio = $image_width / $image_params[0] ;

        if (($res_x + $image_width ) <= $max_width){

            $hights[] = $image_params[1];
            $row_hight =  min($hights)*$ratio;
            //$res_y = max($hights);
        }
        else {
            $res_x = 0;
            $res_y += round($row_hight);
            $hights = array($image_params[0]);
            $row_hight=0;
            $row++;
        }

        $imgs[$k] = array("url"=>$dir.$image,
            "width"=>round($image_params[0]),
            "height"=>round($image_params[1]),
            "pos_x" => intval($res_x),
            "pos_y"=>intval($res_y),
            "ratio"=>$ratio,
            "row" => $row);
        $res_x += $image_width;
    }
    else {
        unset($imgs[$k]);
        continue;
    }
}

//var_dump($imgs);
//exit();
$outputImage = imagecreatetruecolor($max_width, $max_hight);

foreach ($imgs as $img){
	$image = imagecreatefromjpeg($img["url"]);
	$text_color = imagecolorallocate($im, 255, 0, 0);
	imagestring($image, 3, 5, 5,  "ROW {$img["row"]}", $text_color);

	imagecopyresampled(
	    $outputImage,
        $image,
        0+$img["pos_x"],
        0+$img["pos_y"],
        0,
        0,
        $img["width"]*$img["ratio"],
        $img["height"]*$img["ratio"],
        0+$img["width"],
        0+$img["height"]);
}
//exit();
header('Content-type: image/jpeg');
imagejpeg($outputImage);
imagedestroy($outputImage);

?>