actual.php

<?php

class AddAdvertPhotoCommand implements CommandInterface
{
    private $repository;
    private $fileUploader;

    public function __construct(
        AdvertPhotoRepositoryInterface $repository,
        FileUploaderInterface $fileUploader
    ) {
        $this->repository = $repository;
        $this->fileUploader = $fileUploader;
    }
    
    public function execute($dto = null)
    {
        if (!($dto->advert instanceof Advert)) {
            throw new LogicException('Incorrect object. Need '.Advert::class);
        }
        if (!isset($dto->photo)) {
            throw new LogicException('Incorrect object. Need photo property');
        }

        $photo = new AdvertPhoto($dto->advert, $this->fileUploader->upload($dto->photo, 'advert_photos'));
        $this->repository->add($photo);
    }
}

should_be.php

<?php

final class AddAdvertPhotoCommand implements Command
{
     private $advert;
     private $photo;
     
     public function __construct(Advert $advert, File $photo)
     {
         $this->advert = advert;
         $this->photo = $photo;
     }
     
     public function getAdvert() { return $this->advert; }
     public function getPhoto() { return $this->photo; }
}

final class AddAdvertPhotoHandler implements CommandHandler
{
    private $photoRepository;
    
    private $fileUploader;
    
    public function __construct(PhotoRepository $photoRepository, FileUploader $fileUploader)
    {
        $this->photoRepostory = $phtoRepository;
        $this->fileUploader = $fileUploader;
    }

    public function supports(Command $command)
    {
        return $command instanceof  AddAdvertPhotoCommand;
    }
 
    public function execute(Command $command)
    {
        $photo = new AdvertPhoto(
          $command->getAdvert(), 
          $this->fileUploader->upload($command->getPhoto(), 'advert_photos')
        );
        
        $this->photoRepository->add($photo);
        
        return $photo;
    }
}