<?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\Provider\Node;

use Ramsey\Uuid\Exception\InvalidArgumentException;
use Ramsey\Uuid\Provider\NodeProviderInterface;
use Ramsey\Uuid\Type\Hexadecimal;

use function dechex;
use function hexdec;
use function str_pad;
use function substr;

use const STR_PAD_LEFT;

/**
 * StaticNodeProvider provides a static node value with the multicast bit set
 *
 * @link http://tools.ietf.org/html/rfc4122#section-4.5 RFC 4122, § 4.5: Node IDs that Do Not Identify the Host
 */
class StaticNodeProvider implements NodeProviderInterface
{
    private Hexadecimal $node;

    /**
     * @param Hexadecimal $node The static node value to use
     */
    public function __construct(Hexadecimal $node)
    {
        if (strlen($node->toString()) > 12) {
            throw new InvalidArgumentException(
                'Static node value cannot be greater than 12 hexadecimal characters'
            );
        }

        $this->node = $this->setMulticastBit($node);
    }

    public function getNode(): Hexadecimal
    {
        return $this->node;
    }

    /**
     * Set the multicast bit for the static node value
     */
    private function setMulticastBit(Hexadecimal $node): Hexadecimal
    {
        $nodeHex = str_pad($node->toString(), 12, '0', STR_PAD_LEFT);
        $firstOctet = substr($nodeHex, 0, 2);

        $firstOctet = str_pad(
            dechex(hexdec($firstOctet) | 0x01),
            2,
            '0',
            STR_PAD_LEFT
        );

        return new Hexadecimal($firstOctet . substr($nodeHex, 2));
    }
}

• [F] FallbackNodeProvider.php
  Delete
• [F] NodeProviderCollection.php
  Delete
• [F] RandomNodeProvider.php
  Delete
• [F] StaticNodeProvider.php
  Delete
• [F] SystemNodeProvider.php
  Delete

About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

Yes, we use advanced encryption and security protocols to protect your payment details.

Can I add multiple cards to my NFC Pay wallet?

Absolutely, you can link multiple debit or credit cards to your wallet.

How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

Yes, you can view and track your payment status in the account dashboard