package usecase.section;
   
   import common.http.error.ForwardOnError;
   import common.http.interceptor.InterceptableServlet;
   import usecase.auth.AuthorizationConstraints;
   
   import javax.inject.Inject;
   import javax.servlet.ServletException;
   import javax.servlet.annotation.MultipartConfig;
  import javax.servlet.annotation.WebServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import javax.servlet.http.Part;
  import java.io.BufferedInputStream;
  import java.io.IOException;
  
  import static usecase.auth.AuthorizationConstraints.Types.ADMINS_ONLY;
  
  /**
   * Servlet che permette ad un amministratore di creare una nuova sezione.
   */
  @WebServlet("/admin/newsection")
  @MultipartConfig
  @AuthorizationConstraints(ADMINS_ONLY)
  class NewSectionServlet extends InterceptableServlet {
      @Inject private SectionService service;
  
      private static final String NEW_SECTION_PAGE = "/WEB-INF/views/crm/create-section.jsp";
  
      @Override
      protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          request.getRequestDispatcher("/WEB-INF/views/crm/create-section.jsp").forward(request, response);
      }
  
      @Override
      @ForwardOnError(NEW_SECTION_PAGE)
      protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          String name = request.getParameter("name");
          String description = request.getParameter("description");
          Part picture = request.getPart("picture");
          Part banner = request.getPart("banner");
  
          BufferedInputStream streamPicture = picture.getSize() > 0 ? new BufferedInputStream(picture.getInputStream()) : null;
          BufferedInputStream streamBanner = banner.getSize() > 0 ? new BufferedInputStream(banner.getInputStream()) : null;
  
          service.newSection(name, description ,streamPicture,streamBanner);
          response.sendRedirect(getServletContext().getContextPath()+"/admin/showsections");
      }
  }