package usecase.comment;
   
   import common.http.ParameterConverter;
   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.REQUIRE_AUTHENTICATION;
  
  /**
   * Classe che permette la creazione di un nuovo commento.
   */
  @WebServlet("/newcomment")
  @AuthorizationConstraints(REQUIRE_AUTHENTICATION)
  class NewCommentServlet extends InterceptableServlet {
      @Inject private CommentService service;
  
      @Override
      protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          doPost(request,response);
      }
  
      @Override
      protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          ParameterConverter converter = new ParameterConverter(request);
          int postId = converter.getIntParameter("id").orElse(0);
          int parentId = converter.getIntParameter("parent").orElse(0);
          String text = request.getParameter("text");
  
          if(postId > 0){
              service.newComment(text,postId);
          }else{
              service.newCommentReply(text,parentId);
          }
  
          int redirectPost = postId <= 0 ? service.getComment(parentId).getPostId() : postId;
          response.sendRedirect(request.getContextPath() + "/post/" + redirectPost +"#comment-container");
      }
  }