<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Iterators;

use Nette;


/**
 * Smarter caching iterator.
 *
 * @property-read bool $first
 * @property-read bool $last
 * @property-read bool $empty
 * @property-read bool $odd
 * @property-read bool $even
 * @property-read int $counter
 * @property-read mixed $nextKey
 * @property-read mixed $nextValue
 */
class CachingIterator extends \CachingIterator implements \Countable
{
	use Nette\SmartObject;

	private int $counter = 0;


	public function __construct($iterator)
	{
		if (is_array($iterator) || $iterator instanceof \stdClass) {
			$iterator = new \ArrayIterator($iterator);

		} elseif ($iterator instanceof \IteratorAggregate) {
			do {
				$iterator = $iterator->getIterator();
			} while ($iterator instanceof \IteratorAggregate);

			assert($iterator instanceof \Iterator);

		} elseif ($iterator instanceof \Iterator) {
		} elseif ($iterator instanceof \Traversable) {
			$iterator = new \IteratorIterator($iterator);
		} else {
			throw new Nette\InvalidArgumentException(sprintf('Invalid argument passed to %s; array or Traversable expected, %s given.', self::class, get_debug_type($iterator)));
		}

		parent::__construct($iterator, 0);
	}


	/**
	 * Is the current element the first one?
	 */
	public function isFirst(?int $gridWidth = null): bool
	{
		return $this->counter === 1 || ($gridWidth && $this->counter !== 0 && (($this->counter - 1) % $gridWidth) === 0);
	}


	/**
	 * Is the current element the last one?
	 */
	public function isLast(?int $gridWidth = null): bool
	{
		return !$this->hasNext() || ($gridWidth && ($this->counter % $gridWidth) === 0);
	}


	/**
	 * Is the iterator empty?
	 */
	public function isEmpty(): bool
	{
		return $this->counter === 0;
	}


	/**
	 * Is the counter odd?
	 */
	public function isOdd(): bool
	{
		return $this->counter % 2 === 1;
	}


	/**
	 * Is the counter even?
	 */
	public function isEven(): bool
	{
		return $this->counter % 2 === 0;
	}


	/**
	 * Returns the counter.
	 */
	public function getCounter(): int
	{
		return $this->counter;
	}


	/**
	 * Returns the count of elements.
	 */
	public function count(): int
	{
		$inner = $this->getInnerIterator();
		if ($inner instanceof \Countable) {
			return $inner->count();

		} else {
			throw new Nette\NotSupportedException('Iterator is not countable.');
		}
	}


	/**
	 * Forwards to the next element.
	 */
	public function next(): void
	{
		parent::next();
		if (parent::valid()) {
			$this->counter++;
		}
	}


	/**
	 * Rewinds the Iterator.
	 */
	public function rewind(): void
	{
		parent::rewind();
		$this->counter = parent::valid() ? 1 : 0;
	}


	/**
	 * Returns the next key.
	 */
	public function getNextKey(): mixed
	{
		return $this->getInnerIterator()->key();
	}


	/**
	 * Returns the next element.
	 */
	public function getNextValue(): mixed
	{
		return $this->getInnerIterator()->current();
	}
}

• [F] CachingIterator.php
  Delete
• [F] Mapper.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