Erdemkeren\Otp\PasswordGenerators\NumericPasswordGenerator

Complexity

Total Complexity

4

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	generate()	0	11	2
A	generateRangeForLength()	0	14	2

<?php

/*
 * @copyright 2018 Hilmi Erdem KEREN
 * @license MIT
 */

namespace Erdemkeren\Otp\PasswordGenerators;

use Exception;
use Erdemkeren\Otp\PasswordGeneratorInterface;

/**
 * Class NumericPasswordGenerator.
 */
class NumericPasswordGenerator implements PasswordGeneratorInterface
{
    /**
     * Generate a numeric password.
     *
     * @param int $length
     *
     * @return string
     */
    public function generate(int $length): string
    {
        $range = $this->generateRangeForLength($length);

        try {
            $int = random_int($range[0], $range[1]);
        } catch (Exception $e) {
            $int = rand($range[0], $range[1]);
        }

        return (string) $int;
    }

    /**
     * Generate the required range for the given length.
     *
     * @param int $length
     *
     * @return array
     */
    protected function generateRangeForLength(int $length): array
    {
        $min = 1;
        $max = 9;

        while ($length > 1) {
            $min .= 0;
            $max .= 9;

            --$length;
        }

        return [
            $min, $max,
        ];
    }
}