Cnh::calculateSecondDigit()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 9
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 1
Metric Value
cc 1
eloc 6
nc 1
nop 1
dl 0
loc 9
ccs 7
cts 7
cp 1
crap 1
rs 10
c 1
b 0
f 1
1
<?php
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namespace Brazanation\Documents;
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final class Cnh extends AbstractDocument
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{
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    const LENGTH = 11;
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    const LABEL = 'CNH';
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    const REGEX = '/^([\d]{3})([\d]{3})([\d]{4})([\d]{1})$/';
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    const NUMBER_OF_DIGITS = 2;
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    /**
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     * Cnh constructor.
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     *
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     * @param string $cnh Only accept numbers
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     */
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    public function __construct(string $cnh)
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    {
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        $cnh = preg_replace('/\D/', '', $cnh);
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        parent::__construct($cnh, self::LENGTH, self::NUMBER_OF_DIGITS, self::LABEL);
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    }
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    public static function createFromString(string $number)
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    {
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        return parent::tryCreateFromString(self::class, $number, self::LENGTH, self::NUMBER_OF_DIGITS, self::LABEL);
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function calculateDigit(string $baseNumber) : string
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    {
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        $firstDigit = $this->calculateFirstDigit($baseNumber);
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        $secondDigit = $this->calculateSecondDigit($baseNumber);
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        return "{$firstDigit}{$secondDigit}";
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function format() : string
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    {
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        return "{$this}";
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    }
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    /**
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     * Calculate check digit from base number.
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     *
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     * @param string $baseNumber Base numeric section to be calculate your digit.
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     *
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     * @return string Returns a calculated checker digit.
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     */
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    private function calculateFirstDigit(string $baseNumber) : string
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    {
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        $calculator = new DigitCalculator($baseNumber);
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        $calculator->withMultipliersInterval(1, 9);
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        $calculator->replaceWhen('0', 10, 11);
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        $calculator->withModule(DigitCalculator::MODULE_11);
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        $firstDigit = $calculator->calculate();
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        return "{$firstDigit}";
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    }
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    /**
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     * Calculate check digit from base number.
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     *
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     * @param string $baseNumber Base numeric section to be calculate your digit.
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     *
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     * @return string Returns a calculated checker digit.
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     */
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    private function calculateSecondDigit(string $baseNumber) : string
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    {
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        $calculator = new DigitCalculator($baseNumber);
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        $calculator->withMultipliers([9, 8, 7, 6, 5, 4, 3, 2, 1]);
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        $calculator->replaceWhen('0', 10, 11);
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        $calculator->withModule(DigitCalculator::MODULE_11);
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        $secondDigit = $calculator->calculate();
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        return "{$secondDigit}";
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    }
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}
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