set_kit( $kit ); } public function get_order(): array { $payload = $this->read_kit_meta_payload(); return $payload['order'] ?? []; } public function set_order( array $ids ): bool { $kit = $this->get_kit(); if ( ! $kit ) { return false; } $payload = [ 'order' => array_values( $ids ), ]; $result = $kit->update_meta( self::META_KEY, $payload ); $this->cache = null; return false !== $result; } public function remove_class_id( string $id ): bool { $order = $this->get_order(); if ( ! in_array( $id, $order, true ) ) { return true; } $order = array_filter( $order, fn( $item ) => $item !== $id ); return $this->set_order( $order ); } private function read_kit_meta_payload(): array { if ( null !== $this->cache ) { return $this->cache; } $kit = $this->get_kit(); if ( ! $kit ) { return []; } $payload = $kit->get_meta( self::META_KEY ); $this->cache = is_array( $payload ) ? $payload : []; return $this->cache; } }