class.ilCertificateObjectsForUserPreloader.php

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<?php

declare(strict_types=1);

class ilCertificateObjectsForUserPreloader
{
    private static array $certificates = [];

    public function __construct(private readonly ilUserCertificateRepository $userCertificateRepository)
    {
    }

    public function preLoad(int $userId, array $objIds): void
    {
        if (!array_key_exists($userId, self::$certificates)) {
            self::$certificates[$userId] = [];
        }

        $objectIdsWithUserCertificate = $this->userCertificateRepository->fetchObjectIdsWithCertificateForUser(
            $userId,
            array_diff($objIds, self::$certificates[$userId])
        );

        self::$certificates[$userId] = array_unique(array_merge(
            $objectIdsWithUserCertificate,
            self::$certificates[$userId]
        ));
    }

    public function isPreloaded(int $userId, int $objId): bool
    {
        if (!array_key_exists($userId, self::$certificates)) {
            return false;
        }

        return in_array($objId, self::$certificates[$userId], true);
    }
}