<?php

declare (strict_types=1);
/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */
namespace PhpCsFixer;

/**
 * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * @readonly
 *
 * @internal
 */
final class WordMatcher
{
    /**
     * @var list<string>
     */
    private $candidates;
    /**
     * @param list<string> $candidates
     */
    public function __construct(array $candidates)
    {
        $this->candidates = $candidates;
    }
    public function match(string $needle) : ?string
    {
        $word = null;
        $distance = \ceil(\strlen($needle) * 0.35);
        foreach ($this->candidates as $candidate) {
            $candidateDistance = \levenshtein($needle, $candidate);
            if ($candidateDistance < $distance) {
                $word = $candidate;
                $distance = $candidateDistance;
            }
        }
        return $word;
    }
}
