Yiisoft\Validator\Rule\RegexHandler

Complexity

Total Complexity

8

Size/Duplication

Total Lines	39
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	3	1
B	validate()	0	30	7

<?php

declare(strict_types=1);

namespace Yiisoft\Validator\Rule;

use Yiisoft\Validator\Exception\UnexpectedRuleException;
use Yiisoft\Validator\Formatter;
use Yiisoft\Validator\FormatterInterface;
use Yiisoft\Validator\Result;
use Yiisoft\Validator\ValidationContext;

use function is_string;

/**
 * Validates that the value matches the pattern specified in constructor.
 *
 * If the {@see Regex::$not} is used, the rule will ensure the value do NOT match the pattern.
 */
final class RegexHandler implements RuleHandlerInterface
{
    private FormatterInterface $formatter;

    public function __construct(?FormatterInterface $formatter = null)
    {
        $this->formatter = $formatter ?? new Formatter();
    }

    public function validate(mixed $value, object $rule, ?ValidationContext $context = null): Result
    {
        if (!$rule instanceof Regex) {
            throw new UnexpectedRuleException(Regex::class, $rule);
        }

        $result = new Result();

        if (!is_string($value)) {
            $formattedMessage = $this->formatter->format(
                $rule->getIncorrectInputMessage(),
                ['attribute' => $context?->getAttribute(), 'value' => $value]
            );
            $result->addError($formattedMessage);

            return $result;
        }

        if (
            (!$rule->isNot() && !preg_match($rule->getPattern(), $value)) ||
            ($rule->isNot() && preg_match($rule->getPattern(), $value))
        ) {
            $formattedMessage = $this->formatter->format(
                $rule->getMessage(),
                ['attribute' => $context?->getAttribute(), 'value' => $value]
            );
            $result->addError($formattedMessage);
        }

        return $result;
    }
}