package usecase.user;
   
   import common.http.ParameterConverter;
   import common.http.error.JSONError;
   import common.http.interceptor.InterceptableServlet;
   import usecase.auth.AuthorizationConstraints;
   
   import javax.inject.Inject;
   import javax.servlet.ServletException;
  import javax.servlet.annotation.WebServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  
  import static usecase.auth.AuthorizationConstraints.Types.ADMINS_ONLY;
  
  /**
   * Classe che permette di invertire il ruolo di admin di un utente.
   */
  @WebServlet("/admin/toggleAdmin")
  @AuthorizationConstraints(ADMINS_ONLY)
  class ToggleAdminServlet extends InterceptableServlet {
  
      @Inject private UserService service;
  
      @Override
      @JSONError
      protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          ParameterConverter converter = new ParameterConverter(req);
          int userId = converter.getIntParameter("userId").orElse(0);
          service.toggleAdmin(userId);
      }
  }