Respect\Validation\Helpers\ComparisonHelper

Complexity

Total Complexity

9

Size/Duplication

Total Lines	41
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	isAbleToCompareValues()	0	3	1
B	toComparable()	0	18	8

<?php

/*
 * This file is part of Respect/Validation.
 *
 * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
 *
 * For the full copyright and license information, please view the "LICENSE.md"
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Respect\Validation\Helpers;

use Countable;
use DateTimeImmutable;
use DateTimeInterface;
use Exception;
use function is_numeric;
use function is_string;
use function mb_strlen;

/**
 * Helps to deal with comparable values.
 *
 * @author Henrique Moody <henriquemoody@gmail.com>
 */
trait ComparisonHelper
{
    /**
     * Tries to convert a value into something that can be compared with PHP operators.
     *
     * @param mixed $value
     *
     * @return mixed
     */
    private function toComparable($value)
    {
        if ($value instanceof Countable) {
            return $value->count();
        }

        if ($value instanceof DateTimeInterface || !is_string($value) || is_numeric($value) || empty($value)) {
            return $value;
        }

        if (1 === mb_strlen($value)) {
            return $value;
        }

        try {
            return new DateTimeImmutable($value);
        } catch (Exception $e) {
            return $value;
        }
    }

    /**
     * Returns whether the values can be compared or not.
     *
     * @param mixed $left
     * @param mixed $right
     *
     * @return bool
     */
    private function isAbleToCompareValues($left, $right)
    {
        return is_scalar($left) === is_scalar($right);
    }
}