Respect\Validation\Rules\Sorted

Complexity

Total Complexity

8

Size/Duplication

Total Lines	28
Duplicated Lines	0 %

Test Coverage

Coverage

92.86%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
B	validate()	0	15	7

<?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\Rules;

/**
 * @author Henrique Moody <henriquemoody@gmail.com>
 * @author Mikhail Vyrtsev <reeywhaar@gmail.com>
 */
class Sorted extends AbstractRule
{
    public $fn = null;
    public $ascending = true;

    public function __construct(callable $fn = null, bool $ascending = true)
    {
        $this->fn = $fn ?? function ($x) {
            return $x;
        };
        $this->ascending = $ascending;
    }

    public function validate($input): bool
    {
        $count = count($input);
        if ($count < 2) {
            return true;
        }
        for ($i = 1; $i < $count; ++$i) {
            if (($this->ascending && ($this->fn)($input[$i]) < ($this->fn)($input[$i - 1]))
                || (!$this->ascending && ($this->fn)($input[$i]) > ($this->fn)($input[$i - 1]))
            ) {
                return false;
            }
        }

        return true;
    }
}