genkgo / mail

src/Mime/HtmlPart.php

<?php
declare(strict_types=1);

namespace Genkgo\Mail\Mime;

use Genkgo\Mail\Header\ContentTransferEncoding;
use Genkgo\Mail\Header\ContentType;
use Genkgo\Mail\HeaderInterface;
use Genkgo\Mail\Stream\OptimalTransferEncodedTextStream;
use Genkgo\Mail\StreamInterface;

final class HtmlPart implements PartInterface
{
    /**
     * @var PartInterface
     */
    private $decoratedPart;

    /**
     * @param string $html
     * @param string $charset
     */
    public function __construct(string $html, string $charset = 'UTF-8')
    {
        if ($html === '') {
            throw new \InvalidArgumentException('Received empty string instead of HTML');
        }

        $stream = new OptimalTransferEncodedTextStream($html);
        $encoding = $stream->getMetadata(['transfer-encoding'])['transfer-encoding'];

        $this->decoratedPart = (new GenericPart())
            ->withHeader(new ContentType('text/html', $charset))
            ->withHeader(new ContentTransferEncoding($encoding))
            ->withBody($stream);
    }

    /**
     * @return iterable<HeaderInterface>

The doc-type iterable<HeaderInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 8. (view supported doc-types)

     */
    public function getHeaders(): iterable
    {
        return $this->decoratedPart->getHeaders();
    }

    /**
     * @param string $name
     * @return bool
     */
    public function hasHeader(string $name): bool
    {
        return $this->decoratedPart->hasHeader($name);
    }

    /**
     * @param string $name
     * @return HeaderInterface
     */
    public function getHeader(string $name): HeaderInterface
    {
        return $this->decoratedPart->getHeader($name);
    }

    /**
     * @param HeaderInterface $header
     * @return PartInterface
     */
    public function withHeader(HeaderInterface $header): PartInterface
    {
        $clone = clone $this;
        $clone->decoratedPart = $this->decoratedPart->withHeader($header);
        return $clone;
    }

    /**
     * @param string $name
     * @return PartInterface
     */
    public function withoutHeader(string $name): PartInterface
    {
        $clone = clone $this;
        $clone->decoratedPart = $this->decoratedPart->withoutHeader($name);
        return $clone;
    }

    /**
     * @param StreamInterface $body
     * @return PartInterface
     */
    public function withBody(StreamInterface $body): PartInterface
    {
        throw new \RuntimeException('Cannot modify body of HtmlPart');
    }

    /**
     * @return StreamInterface
     */
    public function getBody(): StreamInterface
    {
        return $this->decoratedPart->getBody();
    }
}