AbstractParentItem.php

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<?php

declare(strict_types=1);
namespace ILIAS\GlobalScreen\Scope\MainMenu\Factory;

abstract class AbstractParentItem extends AbstractBaseItem implements isParent
{
    protected array $children = [];

    public function getChildren(): array
    {
        return $this->children;
    }

    public function withChildren(array $children): isParent
    {
        $clone = clone($this);
        $clone->children = $children;

        return $clone;
    }

    public function appendChild(isItem $child): isParent
    {
        $this->children[] = $child;

        return $this;
    }

    public function hasChildren(): bool
    {
        return (count($this->children) > 0);
    }

    public function removeChild(isItem $child_to_remove): isParent
    {
        $this->children = array_filter($this->children, static function (isItem $item) use ($child_to_remove): bool {
            return $item !== $child_to_remove;
        });

        return $this;
    }
}