VatNumberCheck\Utility\VatNumberCheck

Complexity

Total Complexity

6

Size/Duplication

Total Lines	77
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	check()	0	16	3
A	normalize()	0	3	1
A	getSoapDataSource()	0	13	2

<?php
namespace VatNumberCheck\Utility;

use Cake\Core\Configure;
use Cake\Http\Exception\InternalErrorException;
use VatNumberCheck\Model\Datasource\Soap;

/**
 * VatNumberCheck Utility.
 *
 */
class VatNumberCheck
{

/**
 * SOAP connection
 *
 * @var Soap
 */
protected $soapDataSource;

/**
 * check VAT SOAP action
 *
 * @var string
 */
const CHECK_VAT_SOAP_ACTION = 'checkVat';

    /**
     * Service to check vat numbers.
     *
     */
const CHECK_VAT_SERVICE = 'http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl';

/**
 * Normalizes a VAT number.
 *
 * @param string $vatNumber A VAT number
 * @return string A (normalized) VAT number
  */
	public function normalize(string $vatNumber) : string
	{
        return preg_replace('/[^A-Z0-9]/', '', strtoupper($vatNumber));
    }

/**
 * Checks a given VAT number.
 *
 * @param string $vatNumber A VAT number
 * @return bool Valid or not
 * @throws InternalErrorException when it is not possible to check the data
 */
	public function check(string $prefixedVatNumber) : bool
	{
		$countryCode = substr($prefixedVatNumber, 0, 2);
		$vatNumber = substr($prefixedVatNumber, 2);
		$data = compact('countryCode', 'vatNumber');

		if (!$this->getSoapDataSource()->connect()) {
            throw new InternalErrorException('Unable to connect.');
        }

		$result = $this->soapDataSource->query(static::CHECK_VAT_SOAP_ACTION, $data);
		if (!$result) {
            throw new InternalErrorException('Unable to check data.');
        }

        return $result->valid;
	}

    /**
     * Returns an initialized Soap data source.
     *
     * @return Soap the soap datasource
     */
    protected function getSoapDataSource(): Soap
    {
		$wsdl = static::CHECK_VAT_SERVICE;

        if (!isset($this->soapDataSource)) {
			$this->soapDataSource = new Soap();
			$this->soapDataSource->setWsdl($wsdl);
			$this->soapDataSource->setOptions([
				'exceptions' => true
			]);
        }

        return $this->soapDataSource;
	}
}