/home/kueuepay/public_html/vendor/ramsey/uuid/src/Generator/CombGenerator.php
<?php

/**
 * This file is part of the ramsey/uuid library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

declare(strict_types=1);

namespace Ramsey\Uuid\Generator;

use Ramsey\Uuid\Converter\NumberConverterInterface;
use Ramsey\Uuid\Exception\InvalidArgumentException;

use function bin2hex;
use function explode;
use function hex2bin;
use function microtime;
use function str_pad;
use function substr;

use const STR_PAD_LEFT;

/**
 * CombGenerator generates COMBs (combined UUID/timestamp)
 *
 * The CombGenerator, when used with the StringCodec (and, by proxy, the
 * TimestampLastCombCodec) or the TimestampFirstCombCodec, combines the current
 * timestamp with a UUID (hence the name "COMB"). The timestamp either appears
 * as the first or last 48 bits of the COMB, depending on the codec used.
 *
 * By default, COMBs will have the timestamp set as the last 48 bits of the
 * identifier.
 *
 * ``` php
 * $factory = new UuidFactory();
 *
 * $factory->setRandomGenerator(new CombGenerator(
 *     $factory->getRandomGenerator(),
 *     $factory->getNumberConverter()
 * ));
 *
 * $comb = $factory->uuid4();
 * ```
 *
 * To generate a COMB with the timestamp as the first 48 bits, set the
 * TimestampFirstCombCodec as the codec.
 *
 * ``` php
 * $factory->setCodec(new TimestampFirstCombCodec($factory->getUuidBuilder()));
 * ```
 *
 * @link https://www.informit.com/articles/printerfriendly/25862 The Cost of GUIDs as Primary Keys
 */
class CombGenerator implements RandomGeneratorInterface
{
    public const TIMESTAMP_BYTES = 6;

    public function __construct(
        private RandomGeneratorInterface $generator,
        private NumberConverterInterface $numberConverter
    ) {
    }

    /**
     * @throws InvalidArgumentException if $length is not a positive integer
     *     greater than or equal to CombGenerator::TIMESTAMP_BYTES
     *
     * @inheritDoc
     */
    public function generate(int $length): string
    {
        if ($length < self::TIMESTAMP_BYTES) {
            throw new InvalidArgumentException(
                'Length must be a positive integer greater than or equal to ' . self::TIMESTAMP_BYTES
            );
        }

        $hash = '';
        if (self::TIMESTAMP_BYTES > 0 && $length > self::TIMESTAMP_BYTES) {
            $hash = $this->generator->generate($length - self::TIMESTAMP_BYTES);
        }

        $lsbTime = str_pad(
            $this->numberConverter->toHex($this->timestamp()),
            self::TIMESTAMP_BYTES * 2,
            '0',
            STR_PAD_LEFT
        );

        return (string) hex2bin(
            str_pad(
                bin2hex($hash),
                $length - self::TIMESTAMP_BYTES,
                '0'
            )
            . $lsbTime
        );
    }

    /**
     * Returns current timestamp a string integer, precise to 0.00001 seconds
     */
    private function timestamp(): string
    {
        $time = explode(' ', microtime(false));

        return $time[1] . substr($time[0], 2, 5);
    }
}
Path: home/kueuepay/public_html/vendor/ramsey/uuid/src/Generator
Developer
Developer
Back to Home page

Kueue Pay Payment Gateway Solutions Developer API Documentation

Welcome to the Kueue Pay Payment Gateway Solutions Developer API Documentation. This comprehensive guide will empower you to seamlessly integrate our advanced payment gateway into your website, enhancing your customers’ payment experience and enabling efficient transaction processing. The Kueue Pay Developer API is designed for developers and entrepreneurs who seek simplicity, security, and reliability in their payment processing solutions.

1. Introduction

The Kueue Pay Developer API allows you to seamlessly integrate Kueue Pay’s Payment Gateway Solutions into your website, enabling secure and efficient debit and credit card transactions. With our API, you can initiate payments, check payment statuses, and even process refunds, all while ensuring a smooth and streamlined payment experience for your customers.

Prerequisites