<?php

namespace League\CommonMark\Extension\Embed;

use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Extension\CommonMark\Node\Inline\Link;
use League\CommonMark\Node\Block\Paragraph;
use League\CommonMark\Node\Inline\Text;
use League\CommonMark\Node\NodeIterator;

final class EmbedProcessor
{
    public const FALLBACK_REMOVE = 'remove';
    public const FALLBACK_LINK = 'link';

    private EmbedAdapterInterface $adapter;
    private string $fallback;

    public function __construct(EmbedAdapterInterface $adapter, string $fallback = self::FALLBACK_REMOVE)
    {
        $this->adapter  = $adapter;
        $this->fallback = $fallback;
    }

    public function __invoke(DocumentParsedEvent $event): void
    {
        $document = $event->getDocument();
        $embeds   = [];
        foreach (new NodeIterator($document) as $node) {
            if (! ($node instanceof Embed)) {
                continue;
            }

            if ($node->parent() !== $document) {
                $replacement = new Paragraph();
                $replacement->appendChild(new Text($node->getUrl()));
                $node->replaceWith($replacement);
            } else {
                $embeds[] = $node;
            }
        }

        $this->adapter->updateEmbeds($embeds);

        foreach ($embeds as $embed) {
            if ($embed->getEmbedCode() !== null) {
                continue;
            }

            if ($this->fallback === self::FALLBACK_REMOVE) {
                $embed->detach();
            } elseif ($this->fallback === self::FALLBACK_LINK) {
                $paragraph = new Paragraph();
                $paragraph->appendChild(new Link($embed->getUrl(), $embed->getUrl()));
                $embed->replaceWith($paragraph);
            }
        }
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTA2NTQxNDQwMzIzMTYwMSAzNjExNTIyNDg3MTc0OTA3IDk2Mjc1Mzc1MTY1ODE1NjU=