<?php

if (!defined('ABSPATH')) {
	exit;
}

/**
 * @param string $page
 * @param string $field
 *
 * @return string
 */
function jvbContactPage(string $page = 'contact', string $field = 'url'):string
{
	$out = get_option('jvbContactPage');
	if (!$out) {
		$out = array();
		$contact = new WP_Query(array(
			'post_type'     => 'page',
			'title'         => 'Contact',
			'fields'        => 'ids'
		));
		if ($contact->have_posts()) {
			$ID = $contact->posts[0];
			$out['contact'] = array(
				'title'     => 'Contact',
				'id'        => $ID,
				'url'       => get_the_permalink($ID),
			);
		}

		wp_reset_postdata();
		$more  = new WP_Query(array(
			'post_type'          => 'page',
			'post_parent'        => $out['contact'],
			'posts_per_page'    => -1
		));
		if ($more->have_posts()) {
			while ($more->have_posts()) {
				$more->the_post();
				$title = get_the_title();
				$out[sanitize_title($title)] = array(
					'title' => $title,
					'id'    => get_the_ID(),
					'url'   => get_the_permalink(),
				);
			}
		}
		wp_reset_postdata();

		update_option('jvbContactPage', $out);
	}
	if (array_key_exists($page, $out)) {
		return $out[$page][$field];
	}

	return $out['contact']['url'];
}


/**
 * @return int|false
 */
function jvbAboutPage():int|false
{
	$out = get_option('jvbAboutPage');
	if (!$out) {
		$about = new WP_Query(array(
			'post_type'     => 'page',
			'title'         => 'About',
			'fields'        => 'ids'
		));
		if ($about->have_posts()) {
			$out = $about->posts[0];
		}
	}
	return $out;
}

function jvbGetPageId(string $title):int
{
	$page = new WP_Query(
		[
			'post_type' => 'page',
			'title' => $title,
			'posts_per_page'    => 1,
			'fields'    => 'ids',
		]
	);
	wp_reset_postdata();
	$result = ($page->have_posts()) ? $page->posts[0] : false;
	if (!$result) {
		$result = wp_insert_post([
			'post_title'    => $title,
			'post_type'     => 'page',
			'post_status'   => 'publish',
		]);
	}
	return $result;
}