<?php
namespace MailPoetVendor\Symfony\Component\Validator\Constraints;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Symfony\Component\Validator\Constraint;
use MailPoetVendor\Symfony\Component\Validator\ConstraintValidator;
use MailPoetVendor\Symfony\Component\Validator\Exception\UnexpectedTypeException;
use MailPoetVendor\Symfony\Component\Validator\Exception\UnexpectedValueException;
class IsinValidator extends ConstraintValidator
{
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof Isin) {
throw new UnexpectedTypeException($constraint, Isin::class);
}
if (null === $value || '' === $value) {
return;
}
if (!\is_scalar($value) && !(\is_object($value) && \method_exists($value, '__toString'))) {
throw new UnexpectedValueException($value, 'string');
}
$value = \strtoupper($value);
if (Isin::VALIDATION_LENGTH !== \strlen($value)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Isin::INVALID_LENGTH_ERROR)->addViolation();
return;
}
if (!\preg_match(Isin::VALIDATION_PATTERN, $value)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Isin::INVALID_PATTERN_ERROR)->addViolation();
return;
}
if (!$this->isCorrectChecksum($value)) {
$this->context->buildViolation($constraint->message)->setParameter('{{ value }}', $this->formatValue($value))->setCode(Isin::INVALID_CHECKSUM_ERROR)->addViolation();
}
}
private function isCorrectChecksum(string $input) : bool
{
$characters = \str_split($input);
foreach ($characters as $i => $char) {
$characters[$i] = \intval($char, 36);
}
$number = \implode('', $characters);
return 0 === $this->context->getValidator()->validate($number, new Luhn())->count();
}
}