<?php

function getRevueAuthors($revueID)
{
	$revueRelatedArticles = new WP_Query(array(
		'post_type' => 'articles',
		'posts_per_page' => -1,
		'post_status' => 'publish',
		'meta_query' => array(
			array(
				'key' => 'related_revue',
				'value' => $revueID,
				'compare' => '=',
			),
		),
	));
	$authors = array();

	foreach ($revueRelatedArticles->posts as $article) {
		$currentArticleAuthors = get_field('authors', $article->ID);

		if (empty($currentArticleAuthors) || !is_array($currentArticleAuthors)) continue;

		foreach ($currentArticleAuthors as $authorID) {
			$authors[] = $authorID;
		}
	}
	return array_unique($authors);
}

function get_revue_terms($revueID, $taxonomy)
{
	$revueRelatedArticles = new WP_Query(array(
		'post_type' => 'articles',
		'posts_per_page' => -1,
		'post_status' => 'publish',
		'meta_query' => array(
			array(
				'key' => 'related_revue',
				'value' => $revueID,
				'compare' => '=',
			),
		),
	));
	$terms = array();

	foreach ($revueRelatedArticles->posts as $article) {
		$currentArticleTerms = get_the_terms($article->ID, $taxonomy);

		if (empty($currentArticleTerms) || !is_array($currentArticleTerms)) continue;

		foreach ($currentArticleTerms as $term) {
			$terms[] = $term->term_id;
		}
	}

	foreach (array_unique($terms) as $term) {
		$termObject = get_term($term, $taxonomy);
		$uniquesTermsArray[] = $termObject;
	}

	return $uniquesTermsArray;
}


function count_user_articles($userID, $postType)
{
	$args = array(
		'post_type' => $postType,
		'meta_query' => array(
			array(
				'key' => 'authors',
				'value' => '"' . $userID . '"',
				'compare' => 'LIKE',
			),
		),
	);
	$query = new WP_Query($args);
	return $query->found_posts;
}


function build_sommaire_from_content($postID)
{
	$blocks = parse_blocks(get_the_content($postID));
	$titleBlocks = array_filter(
		$blocks,
		function ($block) {
			// Vérifier si c'est un bloc heading
			if ($block['blockName'] !== 'core/heading') {
				return false;
			}

			// Extraire le niveau depuis le HTML si les attributs sont vides
			if (empty($block['attrs']['level'])) {
				// Chercher seulement h2 dans le HTML
				if (preg_match('/<h2[^>]*>/i', $block['innerHTML'], $matches)) {
					return true;
				}
				return false;
			}

			// Utiliser le niveau des attributs s'il existe
			return $block['attrs']['level'] === 2;
		}
	);

	$outputIndex = [];

	foreach ($titleBlocks as $block) {
		$title = strip_tags($block['innerHTML']);

		// Extraire le niveau depuis le HTML ou les attributs
		$level = $block['attrs']['level'] ?? null;
		if (!$level && preg_match('/<h2[^>]*>/i', $block['innerHTML'], $matches)) {
			$level = 2;
		}

		if ($level !== 2) continue;

		$anchor = $block['attrs']['idName'] ?? sanitize_title($title);

		// Ajouter un préfixe si l'ancre commence par un chiffre
		if (!empty($anchor) && preg_match('/^[0-9]/', $anchor)) {
			$anchor = 'anchor-' . $anchor;
		}


		$outputIndex[] = [
			'title' => $title,
			'anchor' => $anchor,
			'level' => $level,
		];
	}

	return $outputIndex;
}


function build_footnotes_index_from_content($content)
{
	if (empty($content)) {
		return [];
	}

	$footnotes = [];
	$dom = new DOMDocument();
	// On supprime les erreurs de parsing pour le HTML5
	@$dom->loadHTML(mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8'), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);

	$links = $dom->getElementsByTagName('a');
	foreach ($links as $key => $link) {
		if ($link->hasAttribute('class') && strpos($link->getAttribute('class'), 'footnote-reference') !== false) {
			$footnote_content = $link->getAttribute('footnote-content');
			if (!empty($footnote_content)) {
				$footnotes[] = array(
					'key' => $key + 1,
					'anchorID' => $key + 1,
					'content' => $footnote_content
				);
			}
		}
	}

	return $footnotes;
}

add_filter('the_content', 'apply_footnotes_urls_to_content', 10);

function apply_footnotes_urls_to_content($content)
{
	$post_type = get_post_type();

	if ($post_type !== 'articles' && !is_admin()) return $content;


	$footnotes = build_footnotes_index_from_content($content);
	$dom = new DOMDocument();
	@$dom->loadHTML(mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8'), LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);

	$links = $dom->getElementsByTagName('a');

	foreach ($links as $key => $link) {

		if ($link->hasAttribute('class') && strpos($link->getAttribute('class'), 'footnote-reference') !== false) {
			$link->setAttribute('id', 'footnote-' . ($key + 1));
		}
	}

	return $dom->saveHTML();
}