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DateTimeConstraint.php
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DateTimeConstraint.php
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<?php
declare(strict_types=1);
namespace Chubbyphp\Validation\Constraint;
use Chubbyphp\Validation\Error\Error;
use Chubbyphp\Validation\Error\ErrorInterface;
use Chubbyphp\Validation\ValidatorContextInterface;
use Chubbyphp\Validation\ValidatorInterface;
final class DateTimeConstraint implements ConstraintInterface
{
public function __construct(private string $format = 'Y-m-d H:i:s')
{
}
/**
* @param mixed $value
*
* @return array<ErrorInterface>
*/
public function validate(
string $path,
$value,
ValidatorContextInterface $context,
?ValidatorInterface $validator = null
) {
if (null === $value || '' === $value) {
return [];
}
if ($value instanceof \DateTimeInterface) {
return $this->validateDateTime($path, $value);
}
if (!\is_scalar($value) && !(\is_object($value) && method_exists($value, '__toString'))) {
return [new Error(
$path,
'constraint.datetime.invalidtype',
['type' => get_debug_type($value)]
)];
}
$value = trim((string) $value);
\DateTimeImmutable::createFromFormat('!'.$this->format, $value);
$dateTimeErrors = \DateTimeImmutable::getLastErrors();
if (!$dateTimeErrors) {
return [];
}
return [...$this->errorsByDateTimeLastErrors(
$path,
$value,
'error',
$dateTimeErrors['error_count'],
$dateTimeErrors['errors']
), ...$this->errorsByDateTimeLastErrors(
$path,
$value,
'warning',
$dateTimeErrors['warning_count'],
$dateTimeErrors['warnings']
)];
}
/**
* @return array<ErrorInterface>
*/
private function validateDateTime(string $path, \DateTimeInterface $value): array
{
/** @var \DateTime $expectedValue */
$expectedValue = \DateTimeImmutable::createFromFormat(
'!'.$this->format,
$value->format($this->format),
$value->getTimezone()
);
if ($expectedValue->format('c') !== $value->format('c')) {
return [
new Error(
$path,
'constraint.datetime.format',
['format' => $this->format, 'value' => $value->format('c')]
),
];
}
return [];
}
/**
* @param array<int, string> $dateTimeErrors
*
* @return array<int, ErrorInterface>
*/
private function errorsByDateTimeLastErrors(
string $path,
string $value,
string $errorType,
int $dateTimeErrorCount,
array $dateTimeErrors
): array {
if (0 === $dateTimeErrorCount) {
return [];
}
$errors = [];
foreach ($dateTimeErrors as $message) {
$errors[] = new Error(
$path,
sprintf('constraint.datetime.%s', $errorType),
['message' => $message, 'format' => $this->format, 'value' => $value]
);
}
return $errors;
}
}