<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Question;

use Symfony\Component\Console\Exception\InvalidArgumentException;
use Symfony\Component\Console\Exception\LogicException;

/**
 * Represents a Question.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Question
{
    private string $question;
    private ?int $attempts = null;
    private bool $hidden = false;
    private bool $hiddenFallback = true;
    private ?\Closure $autocompleterCallback = null;
    private ?\Closure $validator = null;
    private string|int|bool|null|float $default;
    private ?\Closure $normalizer = null;
    private bool $trimmable = true;
    private bool $multiline = false;

    /**
     * @param string                     $question The question to ask to the user
     * @param string|bool|int|float|null $default  The default answer to return if the user enters nothing
     */
    public function __construct(string $question, string|bool|int|float $default = null)
    {
        $this->question = $question;
        $this->default = $default;
    }

    /**
     * Returns the question.
     */
    public function getQuestion(): string
    {
        return $this->question;
    }

    /**
     * Returns the default answer.
     */
    public function getDefault(): string|bool|int|float|null
    {
        return $this->default;
    }

    /**
     * Returns whether the user response accepts newline characters.
     */
    public function isMultiline(): bool
    {
        return $this->multiline;
    }

    /**
     * Sets whether the user response should accept newline characters.
     *
     * @return $this
     */
    public function setMultiline(bool $multiline): static
    {
        $this->multiline = $multiline;

        return $this;
    }

    /**
     * Returns whether the user response must be hidden.
     */
    public function isHidden(): bool
    {
        return $this->hidden;
    }

    /**
     * Sets whether the user response must be hidden or not.
     *
     * @return $this
     *
     * @throws LogicException In case the autocompleter is also used
     */
    public function setHidden(bool $hidden): static
    {
        if ($this->autocompleterCallback) {
            throw new LogicException('A hidden question cannot use the autocompleter.');
        }

        $this->hidden = $hidden;

        return $this;
    }

    /**
     * In case the response cannot be hidden, whether to fallback on non-hidden question or not.
     */
    public function isHiddenFallback(): bool
    {
        return $this->hiddenFallback;
    }

    /**
     * Sets whether to fallback on non-hidden question if the response cannot be hidden.
     *
     * @return $this
     */
    public function setHiddenFallback(bool $fallback): static
    {
        $this->hiddenFallback = $fallback;

        return $this;
    }

    /**
     * Gets values for the autocompleter.
     */
    public function getAutocompleterValues(): ?iterable
    {
        $callback = $this->getAutocompleterCallback();

        return $callback ? $callback('') : null;
    }

    /**
     * Sets values for the autocompleter.
     *
     * @return $this
     *
     * @throws LogicException
     */
    public function setAutocompleterValues(?iterable $values): static
    {
        if (\is_array($values)) {
            $values = $this->isAssoc($values) ? array_merge(array_keys($values), array_values($values)) : array_values($values);

            $callback = static function () use ($values) {
                return $values;
            };
        } elseif ($values instanceof \Traversable) {
            $valueCache = null;
            $callback = static function () use ($values, &$valueCache) {
                return $valueCache ?? $valueCache = iterator_to_array($values, false);
            };
        } else {
            $callback = null;
        }

        return $this->setAutocompleterCallback($callback);
    }

    /**
     * Gets the callback function used for the autocompleter.
     */
    public function getAutocompleterCallback(): ?callable
    {
        return $this->autocompleterCallback;
    }

    /**
     * Sets the callback function used for the autocompleter.
     *
     * The callback is passed the user input as argument and should return an iterable of corresponding suggestions.
     *
     * @return $this
     */
    public function setAutocompleterCallback(callable $callback = null): static
    {
        if ($this->hidden && null !== $callback) {
            throw new LogicException('A hidden question cannot use the autocompleter.');
        }

        $this->autocompleterCallback = null === $callback || $callback instanceof \Closure ? $callback : \Closure::fromCallable($callback);

        return $this;
    }

    /**
     * Sets a validator for the question.
     *
     * @return $this
     */
    public function setValidator(callable $validator = null): static
    {
        $this->validator = null === $validator || $validator instanceof \Closure ? $validator : \Closure::fromCallable($validator);

        return $this;
    }

    /**
     * Gets the validator for the question.
     */
    public function getValidator(): ?callable
    {
        return $this->validator;
    }

    /**
     * Sets the maximum number of attempts.
     *
     * Null means an unlimited number of attempts.
     *
     * @return $this
     *
     * @throws InvalidArgumentException in case the number of attempts is invalid
     */
    public function setMaxAttempts(?int $attempts): static
    {
        if (null !== $attempts && $attempts < 1) {
            throw new InvalidArgumentException('Maximum number of attempts must be a positive value.');
        }

        $this->attempts = $attempts;

        return $this;
    }

    /**
     * Gets the maximum number of attempts.
     *
     * Null means an unlimited number of attempts.
     */
    public function getMaxAttempts(): ?int
    {
        return $this->attempts;
    }

    /**
     * Sets a normalizer for the response.
     *
     * The normalizer can be a callable (a string), a closure or a class implementing __invoke.
     *
     * @return $this
     */
    public function setNormalizer(callable $normalizer): static
    {
        $this->normalizer = $normalizer instanceof \Closure ? $normalizer : \Closure::fromCallable($normalizer);

        return $this;
    }

    /**
     * Gets the normalizer for the response.
     *
     * The normalizer can ba a callable (a string), a closure or a class implementing __invoke.
     */
    public function getNormalizer(): ?callable
    {
        return $this->normalizer;
    }

    protected function isAssoc(array $array)
    {
        return (bool) \count(array_filter(array_keys($array), 'is_string'));
    }

    public function isTrimmable(): bool
    {
        return $this->trimmable;
    }

    /**
     * @return $this
     */
    public function setTrimmable(bool $trimmable): static
    {
        $this->trimmable = $trimmable;

        return $this;
    }
}

• [F] ChoiceQuestion.php
  Delete
• [F] ConfirmationQuestion.php
  Delete
• [F] Question.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