Add author name to term name on term creation

Author: nlemoine

inc/namespace.php

@@ -58,6 +58,33 @@ function bootstrap() : void {
 	add_filter( 'the_author', __NAMESPACE__ . '\\filter_the_author_for_rss' );
 	add_filter( 'comment_moderation_recipients', __NAMESPACE__ . '\\filter_comment_moderation_recipients', 10, 2 );
 	add_filter( 'comment_notification_recipients', __NAMESPACE__ . '\\filter_comment_notification_recipients', 10, 2 );
+	add_filter( 'wp_insert_term_data', __NAMESPACE__ . '\\add_term_name', 10, 3 );
+}
+
+/**
+ * Set term name to user display name on term creation.
+ *
+ * @param array  $data Term data.
+ * @param string $taxonomy Taxonomy.
+ * @param array  $args wp_insert_term() args.
+ * @return array
+ */
+function add_term_name( array $data, string $taxonomy, array $args ) : array {
+	if ( $taxonomy !== TAXONOMY ) {
+		return $data;
+	}
+	$user_id = (int) $data['slug'] ?? null;
+	if ( ! $user_id ) {
+		return $data;
+	}
+
+	$user = get_userdata( $user_id );
+	if ( ! $user ) {
+		return $data;
+	}
+
+	$data['name'] = $user->display_name;
+	return $data;
 }
 
 /**