StateResourceIdentifierCollection.php

<?php
 
declare(strict_types=1);
namespace Commercetools\Api\Models\State;
 
use Commercetools\Api\Models\Common\ResourceIdentifierCollection;
use Commercetools\Exception\InvalidArgumentException;
use stdClass;
 
class StateResourceIdentifierCollection extends ResourceIdentifierCollection
{
    public function add($value)
    {
        if (!$value instanceof StateResourceIdentifier) {
            throw new InvalidArgumentException();
        }
        $this->store($value);
 
        return $this;
    }
 
    protected function mapper()
    {
        return function (?int $index): ?StateResourceIdentifier {
            $data = $this->get($index);
            if ($data instanceof stdClass) {
                $data = StateResourceIdentifierModel::of($data);
                $this->set($data, $index);
            }
 
            return $data;
        };
    }
}