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<?php

namespace Corals\Modules\Payment\Fac\Message;

use Corals\Modules\Payment\Common\Message\AbstractResponse as BaseAbstractResponse;
use SimpleXMLElement;

abstract class AbstractResponse extends BaseAbstractResponse
{
    /**
     * Seserializes XML to an array
     *
     * @param \SimpleXMLElement|string $xml SimpleXMLElement object or a well formed xml string.
     *
     * @return array data
     */
    protected function xmlDeserialize($xml)
    {
        $array = [];

        if (!$xml instanceof SimpleXMLElement) {
            $xml = new SimpleXMLElement($xml);
        }

        foreach ($xml->children() as $key => $child) {
            $value = (string)$child;
            $_children = $this->xmlDeserialize($child);
            $_push = ($_hasChild = (count($_children) > 0)) ? $_children : $value;

            if ($_hasChild && !empty($value) && $value !== '') {
                $_push[] = $value;
            }

            $array[$key] = $_push;
        }

        return $array;
    }

    /**
     * This is mostly for convenience so you can get the Transaction ID from the response which FAC sends back with all
     * of their responses except the Create Card. If you call this from CreateCardResponse, you will just get a null.
     *
     * @return null
     */
    public function getTransactionId()
    {
        return isset($this->data['OrderNumber']) ? $this->data['OrderNumber'] : null;
    }

    public function getChargeReference()
    {
        return $this->getTransactionReference() ?: $this->getTransactionId();
    }
}