OfComponent.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Component\Resource;
 
class OfComponent implements PublicAsset
{
    public const REGEXP_SOURCE = '%^(((\w|.)+(/(\w|.)+)*(\.\w{2,4})?)|(\.htaccess))$%';
    public const REGEXP_TARGET = '%^(((\w|.)+(/(\w|.)+)*)|[.])$%';
 
    public function __construct(
        protected \ILIAS\Component\Component $component,
        protected string $source,
        protected string $target,
    ) {
        if (!preg_match(self::REGEXP_SOURCE, $this->source)) {
            throw new \InvalidArgumentException(
                "'{$this->source}' is not a valid source path for a public asset."
            );
        }
        if (!preg_match(self::REGEXP_TARGET, $this->target)) {
            throw new \InvalidArgumentException(
                "'{$this->target}' is not a valid target path for a public asset."
            );
        }
    }
 
    public function getSource(): string
    {
        list($vendor, $component) = explode("\\", get_class($this->component));
 
        return "components/$vendor/$component/resources/{$this->source}";
    }
 
    public function getTarget(): string
    {
        $source = explode("/", $this->source);
        if ($this->target === ".") {
            return array_pop($source);
        }
        return $this->target . "/" . array_pop($source);
    }
}