Brazanation\Documents\Cnh

Complexity

Total Complexity

5

Size/Duplication

Total Lines	74
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	2

Test Coverage

Coverage

100%

Importance

Changes	3
Bugs	0	Features	1

5 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	calculateDigit()	0	7	1
A	format()	0	4	1
A	calculateFirstDigit()	0	10	1
A	calculateSecondDigit()	0	10	1

<?php

namespace Brazanation\Documents;

final class Cnh extends AbstractDocument implements DocumentInterface
{
    const LENGTH = 11;

    const LABEL = 'CNH';

    const REGEX = '/^([\d]{3})([\d]{3})([\d]{4})([\d]{1})$/';

    /**
     * Cnh constructor.
     *
     * @param string $cnh Only accept numbers
     */
    public function __construct($cnh)
    {
        $cnh = preg_replace('/\D/', '', $cnh);
        parent::__construct($cnh, self::LENGTH, 2, self::LABEL);
    }

    /**
     * {@inheritdoc}
     */
    public function calculateDigit($baseNumber)
    {
        $firstDigit = $this->calculateFirstDigit($baseNumber);
        $secondDigit = $this->calculateSecondDigit($baseNumber);

        return "{$firstDigit}{$secondDigit}";
    }

    /**
     * {@inheritdoc}
     */
    public function format()
    {
        return "{$this}";
    }

    /**
     * Calculate check digit from base number.
     *
     * @param string $baseNumber Base numeric section to be calculate your digit.
     *
     * @return string Returns a calculated checker digit.
     */
    private function calculateFirstDigit($baseNumber)
    {
        $calculator = new DigitCalculator($baseNumber);
        $calculator->withMultipliersInterval(1, 9);
        $calculator->replaceWhen('0', 10, 11);
        $calculator->withModule(DigitCalculator::MODULE_11);
        $firstDigit = $calculator->calculate();

        return "{$firstDigit}";
    }

    /**
     * Calculate check digit from base number.
     *
     * @param string $baseNumber Base numeric section to be calculate your digit.
     *
     * @return string Returns a calculated checker digit.
     */
    private function calculateSecondDigit($baseNumber)
    {
        $calculator = new DigitCalculator($baseNumber);
        $calculator->withMultipliers([9, 8, 7, 6, 5, 4, 3, 2, 1]);
        $calculator->replaceWhen('0', 10, 11);
        $calculator->withModule(DigitCalculator::MODULE_11);
        $secondDigit = $calculator->calculate();

        return "{$secondDigit}";
    }
}