public function getItems(): array
    {
        $available = [];
        $assigned = [];

        foreach (array_keys($this->manager->getRoles()) as $name) {
            $available[$name] = 'role';
        }

        foreach (array_keys($this->manager->getPermissions()) as $name) {
            if ($name[0] != '/') {
                $available[$name] = 'permission';
            }
        }

        foreach ($this->manager->getAssignments($this->userId) as $item) {
            $assigned[$item->roleName] = $available[$item->roleName];
            unset($available[$item->roleName]);
        }

        return [
            'available' => $available,
            'assigned' => $assigned,
        ];
    }