DatabaseHeadingItem.php
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DatabaseHeadingItem.php
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	<?php

	namespace MediaWiki\Extension\DiscussionTools\ThreadItem;

	use MediaWiki\Page\ProperPageIdentity;
	use MediaWiki\Revision\RevisionRecord;

	class DatabaseHeadingItem extends DatabaseThreadItem implements HeadingItem {
	use HeadingItemTrait;

	private bool $placeholderHeading;
	private int $headingLevel;

	// Placeholder headings must have a level higher than real headings (1-6)
	private const PLACEHOLDER_HEADING_LEVEL = 99;

	/**
	* @param ProperPageIdentity $page
	* @param RevisionRecord $rev
	* @param string $name
	* @param string $id
	* @param DatabaseThreadItem\|null $parent
	* @param bool\|string $transcludedFrom
	* @param int $level
	* @param ?int $headingLevel Heading level (1-6). Use null for a placeholder heading.
	*/
	public function __construct(
	ProperPageIdentity $page, RevisionRecord $rev,
	string $name, string $id, ?DatabaseThreadItem $parent, $transcludedFrom, int $level,
	?int $headingLevel
	) {
	parent::__construct( $page, $rev, 'heading', $name, $id, $parent, $transcludedFrom, $level );
	$this->placeholderHeading = $headingLevel === null;
	$this->headingLevel = $this->placeholderHeading ? static::PLACEHOLDER_HEADING_LEVEL : $headingLevel;
	}

	/**
	* @inheritDoc
	*/
	public function getHeadingLevel(): int {
	return $this->headingLevel;
	}

	/**
	* @inheritDoc
	*/
	public function isPlaceholderHeading(): bool {
	return $this->placeholderHeading;
	}
	}