Kontrolio\Rules\Core\Okpo

Complexity

Total Complexity

6

Size/Duplication

Total Lines	50
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	1

1 Method

Rating	Name	Duplication	Size	Complexity
B	isValid()	0	41	6

<?php

namespace Kontrolio\Rules\Core;

use Kontrolio\Rules\AbstractRule;

class Okpo extends AbstractRule
{
    /**
     * Validates input.
     *
     * @param mixed $input
     *
     * @return bool
     */
    public function isValid($input = null)
    {
        if (!is_numeric($input)) {
            $this->violations[] = 'numeric';

            return false;
        }

        $input = (string) $input;

        if (strlen($input) != 8) {
            $this->violations[] = 'length';

            return false;
        }

        $factor1 = range(1, 7);
        $factor2 = range(3, 9);

        $checksum1 = 0;
        $index = 0;

        while ($index <= 6) {
            $checksum1 = $checksum1 + intval($input[$index]) * $factor1[$index];
            $index++;
        }

        $value1 = $checksum1 % 11;

        $index = 0;
        $checksum2 = 0;

        while ($index <= 6) {
            $checksum2 = $checksum2 + intval($input[$index]) * $factor2[$index];
            $index++;
        }

        $value2 = $checksum2 % 11;
        $check = ($value1 > 9 ? $value2 : $value1);

        return $input[7] == $check;
    }
}