AccessPress create new user on post submission

save-post.php

/** ITUK's Register user on form submission
  *
  * OPEN `inc/core/save-post.php`.
  * LOOK FOR LINE 179, it should be something like: `add_post_meta($post_id, 'ap_author_email', $author_email, false);`
  * ADD THE FOLLOWING SNIPPET AFTER THAT LINE
  *
**/

//if no user is registered with this email
if ( !email_exists($author_email) ){
	//create new user
	$random_password = wp_generate_password( $length=12, $include_standard_special_chars=false ); //random password
	$user_id = wp_create_user( $author_email, $random_password, $author_email ); //create user
	$user = new WP_User($user_id); //user object
	$user->set_role('listing_author'); //set user role

	//add author name to user
	if ( $author_name ) {
		update_user_meta( $user_id, 'user_firstname', $author_name );
	}
	//add author url to user
	if ( $author_url ) {
		update_user_meta( $user_id, 'user_url', $author_url );
	}

	//set new user as post author
	$arg = array(
		'ID' => $post_id,
		'post_author' => $user_id,
	);
	wp_update_post( $arg );

	//send welcome email to user and admin
	wp_new_user_notification( $user_id, null, 'both' );

	//log in user
	wp_set_current_user( $user_id );
	wp_set_auth_cookie( $user_id );

// if user already exists
} else {
	//redirect to login page and back to form
	auth_redirect();
}