How add if-statement to array

I have this code.

            ->add(Lang::__('users'), 'javascript:void(0)', Menu::factory()
            ->add(Lang::__('users'), ACCESS_ADMIN.'/users/index', Menu::factory()
                ->add(Lang::__('adduser'), ACCESS_ADMIN.'/users/add_user'))
            ->add(Lang::__('usergroups'), ACCESS_ADMIN.'/users/groups', Menu::factory()
                ->add(Lang::__('addusergroup'), ACCESS_ADMIN.'/users/add_group')))

I test this:

            ((Hooks::Exist('Blog') == true) ?
        ->add(Lang::__('users'), 'javascript:void(0)', Menu::factory()
            ->add(Lang::__('users'), ACCESS_ADMIN.'/users/index', Menu::factory()
                ->add(Lang::__('adduser'), ACCESS_ADMIN.'/users/add_user'))
            ->add(Lang::__('usergroups'), ACCESS_ADMIN.'/users/groups', Menu::factory()
                ->add(Lang::__('addusergroup'), ACCESS_ADMIN.'/users/add_group')))
        : ''),

but a have an error unexpected '('. How i add an if to my code...??? Thanks in advance people.