<?php

namespace League\CommonMark\Extension\TableOfContents\Normalizer;

use League\CommonMark\Extension\CommonMark\Node\Block\ListBlock;
use League\CommonMark\Extension\CommonMark\Node\Block\ListItem;
use League\CommonMark\Extension\TableOfContents\Node\TableOfContents;

final class RelativeNormalizerStrategy implements NormalizerStrategyInterface
{
    /** @psalm-readonly */
    private TableOfContents $toc;

    /**
     * @var array<int, ListItem>
     *
     * @psalm-readonly-allow-private-mutation
     */
    private array $listItemStack = [];

    public function __construct(TableOfContents $toc)
    {
        $this->toc = $toc;
    }

    public function addItem(int $level, ListItem $listItemToAdd): void
    {
        $previousLevel = \array_key_last($this->listItemStack);

        // Pop the stack if we're too deep
        while ($previousLevel !== null && $level < $previousLevel) {
            \array_pop($this->listItemStack);
            $previousLevel = \array_key_last($this->listItemStack);
        }

        $lastListItem = \end($this->listItemStack);

        // Need to go one level deeper? Add that level
        if ($lastListItem !== false && $level > $previousLevel) {
            $targetListBlock = new ListBlock($lastListItem->getListData());
            $targetListBlock->setStartLine($listItemToAdd->getStartLine());
            $targetListBlock->setEndLine($listItemToAdd->getEndLine());
            $lastListItem->appendChild($targetListBlock);
        // Otherwise we're at the right level
        // If there's no stack we're adding this item directly to the TOC element
        } elseif ($lastListItem === false) {
            $targetListBlock = $this->toc;
        // Otherwise add it to the last list item
        } else {
            $targetListBlock = $lastListItem->parent();
        }

        $targetListBlock->appendChild($listItemToAdd);
        $this->listItemStack[$level] = $listItemToAdd;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjM3OTgyNDExMTI5NjcyOSAyOTk0ODY1ODgzNDI1NTU5IDY3NTgxNTU2MTkxMDQyNjg=