<?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\Mime\Part;

use Symfony\Component\Mime\Encoder\Base64ContentEncoder;
use Symfony\Component\Mime\Encoder\ContentEncoderInterface;
use Symfony\Component\Mime\Encoder\EightBitContentEncoder;
use Symfony\Component\Mime\Encoder\QpContentEncoder;
use Symfony\Component\Mime\Exception\InvalidArgumentException;
use Symfony\Component\Mime\Header\Headers;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 */
class TextPart extends AbstractPart
{
    /** @internal */
    protected $_headers;

    private static $encoders = [];

    private $body;
    private $charset;
    private $subtype;
    /**
     * @var ?string
     */
    private $disposition;
    private $name;
    private $encoding;
    private $seekable;

    /**
     * @param resource|string $body
     */
    public function __construct($body, ?string $charset = 'utf-8', string $subtype = 'plain', string $encoding = null)
    {
        unset($this->_headers);

        parent::__construct();

        if (!\is_string($body) && !\is_resource($body)) {
            throw new \TypeError(sprintf('The body of "%s" must be a string or a resource (got "%s").', self::class, get_debug_type($body)));
        }

        $this->body = $body;
        $this->charset = $charset;
        $this->subtype = $subtype;
        $this->seekable = \is_resource($body) ? stream_get_meta_data($body)['seekable'] && 0 === fseek($body, 0, \SEEK_CUR) : null;

        if (null === $encoding) {
            $this->encoding = $this->chooseEncoding();
        } else {
            if ('quoted-printable' !== $encoding && 'base64' !== $encoding && '8bit' !== $encoding) {
                throw new InvalidArgumentException(sprintf('The encoding must be one of "quoted-printable", "base64", or "8bit" ("%s" given).', $encoding));
            }
            $this->encoding = $encoding;
        }
    }

    public function getMediaType(): string
    {
        return 'text';
    }

    public function getMediaSubtype(): string
    {
        return $this->subtype;
    }

    /**
     * @param string $disposition one of attachment, inline, or form-data
     *
     * @return $this
     */
    public function setDisposition(string $disposition): static
    {
        $this->disposition = $disposition;

        return $this;
    }

    /**
     * Sets the name of the file (used by FormDataPart).
     *
     * @return $this
     */
    public function setName(string $name): static
    {
        $this->name = $name;

        return $this;
    }

    public function getBody(): string
    {
        if (null === $this->seekable) {
            return $this->body;
        }

        if ($this->seekable) {
            rewind($this->body);
        }

        return stream_get_contents($this->body) ?: '';
    }

    public function bodyToString(): string
    {
        return $this->getEncoder()->encodeString($this->getBody(), $this->charset);
    }

    public function bodyToIterable(): iterable
    {
        if (null !== $this->seekable) {
            if ($this->seekable) {
                rewind($this->body);
            }
            yield from $this->getEncoder()->encodeByteStream($this->body);
        } else {
            yield $this->getEncoder()->encodeString($this->body);
        }
    }

    public function getPreparedHeaders(): Headers
    {
        $headers = parent::getPreparedHeaders();

        $headers->setHeaderBody('Parameterized', 'Content-Type', $this->getMediaType().'/'.$this->getMediaSubtype());
        if ($this->charset) {
            $headers->setHeaderParameter('Content-Type', 'charset', $this->charset);
        }
        if ($this->name && 'form-data' !== $this->disposition) {
            $headers->setHeaderParameter('Content-Type', 'name', $this->name);
        }
        $headers->setHeaderBody('Text', 'Content-Transfer-Encoding', $this->encoding);

        if (!$headers->has('Content-Disposition') && null !== $this->disposition) {
            $headers->setHeaderBody('Parameterized', 'Content-Disposition', $this->disposition);
            if ($this->name) {
                $headers->setHeaderParameter('Content-Disposition', 'name', $this->name);
            }
        }

        return $headers;
    }

    public function asDebugString(): string
    {
        $str = parent::asDebugString();
        if (null !== $this->charset) {
            $str .= ' charset: '.$this->charset;
        }
        if (null !== $this->disposition) {
            $str .= ' disposition: '.$this->disposition;
        }

        return $str;
    }

    private function getEncoder(): ContentEncoderInterface
    {
        if ('8bit' === $this->encoding) {
            return self::$encoders[$this->encoding] ?? (self::$encoders[$this->encoding] = new EightBitContentEncoder());
        }

        if ('quoted-printable' === $this->encoding) {
            return self::$encoders[$this->encoding] ?? (self::$encoders[$this->encoding] = new QpContentEncoder());
        }

        return self::$encoders[$this->encoding] ?? (self::$encoders[$this->encoding] = new Base64ContentEncoder());
    }

    private function chooseEncoding(): string
    {
        if (null === $this->charset) {
            return 'base64';
        }

        return 'quoted-printable';
    }

    public function __sleep(): array
    {
        // convert resources to strings for serialization
        if (null !== $this->seekable) {
            $this->body = $this->getBody();
            $this->seekable = null;
        }

        $this->_headers = $this->getHeaders();

        return ['_headers', 'body', 'charset', 'subtype', 'disposition', 'name', 'encoding'];
    }

    public function __wakeup()
    {
        $r = new \ReflectionProperty(AbstractPart::class, 'headers');
        $r->setAccessible(true);
        $r->setValue($this, $this->_headers);
        unset($this->_headers);
    }
}

• [D] Multipart
• [F] AbstractMultipartPart.php
  Delete
• [F] AbstractPart.php
  Delete
• [F] DataPart.php
  Delete
• [F] MessagePart.php
  Delete
• [F] SMimePart.php
  Delete
• [F] TextPart.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.
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• 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?

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Is my payment information secure?

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Can I add multiple cards to my NFC Pay wallet?

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