<?php
/**
 * Create Topic functionality
 *
 * @package Forumax
 */

defined( 'ABSPATH' ) || exit;

// AJAX handler to create a topic
add_action( 'wp_ajax_forumax_create_topic', 'forumax_create_topic' );

/**
 * Create a new topic.
 */
function forumax_create_topic() {

	// Check the nonce
	check_ajax_referer( 'bbpc-admin-nonce', 'bbpc_nonce' );

	if ( ! current_user_can( 'manage_options' ) ) {
		wp_send_json_error( 'Unauthorized request.' );
	}

	$bbp_topic_title = isset( $_POST['bbp_topic_title'] ) ? sanitize_text_field( wp_unslash( $_POST['bbp_topic_title'] ) ) : '';
	if ( empty( $bbp_topic_title ) ) {
		wp_send_json_error( 'Topic title cannot be empty.' );
	}

	$forum_id     = ! empty( $_POST['forum_id'] ) ? absint( $_POST['forum_id'] ) : 0;
	$topic_author = bbp_get_current_user_id();

	$parent_item = get_children( [
		'post_parent' => $forum_id,
		'post_type'   => 'topic',
	] );

	$add   = 2;
	$order = count( $parent_item );
	$order = $order + $add;

	// Create topic object
	$topic_data = apply_filters( 'bbp_new_topic_pre_insert', [
		'post_author'  => $topic_author,
		'post_title'   => $bbp_topic_title,
		'post_parent'  => $forum_id,
		'post_content' => '',
		'post_type'    => bbp_get_topic_post_type(),
		'post_status'  => 'publish',
		'menu_order'   => $order,
	] );

	$topic_id = wp_insert_post( $topic_data, true );

	if ( is_wp_error( $topic_id ) ) {
		wp_send_json_error( 'Failed to create the topic.' );
	}

	do_action( 'bbp_new_topic', $topic_id, $forum_id, '', $topic_author );
	wp_send_json_success( 'Topic created successfully.' );
}