FromSvgTransformation.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Refinery\URI\Transformation;
 
use ILIAS\Refinery\DeriveApplyToFromTransform;
use ILIAS\Refinery\DeriveInvokeFromTransform;
use ILIAS\Refinery\Transformation;
use ILIAS\Data\SVG;
 
class FromSvgTransformation implements Transformation
{
    use DeriveApplyToFromTransform;
    use DeriveInvokeFromTransform;
 
    protected const string SCHEME = 'data:';
    protected const string MIME_TYPE = 'image/svg+xml';
    protected const string ENCODING = 'base64';
 
    public function transform(mixed $from): string
    {
        if (!$from instanceof SVG) {
            throw new \InvalidArgumentException("Argument must be of type " . SVG::class);
        }
 
        return self::SCHEME . self::MIME_TYPE . ';' . self::ENCODING . ',' . base64_encode($from->__toString());
    }
}