package org.kuali.ole.olekrad.authorization.controller;
   
   import org.apache.commons.lang.StringUtils;
   import org.apache.log4j.Logger;
   import org.kuali.ole.olekrad.authorization.form.OLEKRADAuthorizationForm;
   import org.kuali.rice.krad.UserSession;
   import org.kuali.rice.krad.uif.UifConstants;
   import org.kuali.rice.krad.uif.UifParameters;
   import org.kuali.rice.krad.uif.view.HistoryEntry;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.kuali.rice.krad.web.controller.UifControllerHelper;
  import org.kuali.rice.krad.web.controller.UifHandlerExceptionResolver;
  import org.kuali.rice.krad.web.form.DocumentFormBase;
  import org.kuali.rice.krad.web.form.LookupForm;
  import org.kuali.rice.krad.web.form.UifFormBase;
  import org.springframework.web.servlet.ModelAndView;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /**
   * Created with IntelliJ IDEA.
   * User: sheiksalahudeenm
   * Date: 8/22/13
   * Time: 9:56 PM
   * To change this template use File | Settings | File Templates.
   */
  public class OLEKRADAuthorizationResolver extends UifHandlerExceptionResolver {
      private static final Logger LOG = Logger.getLogger(OLEKRADAuthorizationResolver.class);
      @Override
      public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
                                           Exception ex) {
          //LOG.error("The following error was caught by the UifHandlerExceptionResolver : ", ex);
  
          // log exception
          //LOG.error(ex.getMessage(), ex);
          if(ex!=null && ex.getMessage()!=null && ex.getMessage().contains("is not authorized")){
  
              String incidentDocId = request.getParameter(KRADConstants.DOCUMENT_DOCUMENT_NUMBER);
              String incidentViewId = "";
  
              UifFormBase form = (UifFormBase)request.getAttribute(UifConstants.REQUEST_FORM);
              if (form instanceof DocumentFormBase) {
                  if (((DocumentFormBase) form).getDocument() != null) {
                      incidentDocId = ((DocumentFormBase) form).getDocument().getDocumentNumber();
                  }
                  incidentViewId = ((DocumentFormBase) form).getViewId();
              }
              GlobalVariables.getUifFormManager().removeSessionForm(form);
  
              UserSession userSession = (UserSession) request.getSession().getAttribute(KRADConstants.USER_SESSION_KEY);
  
              OLEKRADAuthorizationForm oleKradAuthorizationForm = new OLEKRADAuthorizationForm();
              oleKradAuthorizationForm.setDocId(incidentDocId);
              oleKradAuthorizationForm.setPrincipalId(userSession.getPrincipalId());
              oleKradAuthorizationForm.setError("Error Message      :");
              if(form instanceof LookupForm){
                  oleKradAuthorizationForm.setInformation("You are not authorized to view \" "+((LookupForm) form).getView().getHeaderText()+" \"");
  
              }
              else if(form instanceof UifFormBase){
                  oleKradAuthorizationForm.setInformation("You are not authorized to view \" "+((UifFormBase) form).getView().getHeaderText()+" \"");
              }
              else{
                  oleKradAuthorizationForm.setInformation("You are not authorized to view this Document");
              }
  
  
  
              // Set the post url map to the incident report controller and not
              // the one the exception occurred on
              String postUrl = request.getRequestURL().toString();
              postUrl = postUrl.substring(0, postUrl.lastIndexOf("/")) + "/incidentReport";
              oleKradAuthorizationForm.setFormPostUrl(postUrl);
  
              oleKradAuthorizationForm.setViewId("OLEKRADAuthorizationView");
  
              if (form != null) {
                  oleKradAuthorizationForm.setAjaxRequest(form.isAjaxRequest());
              } else {
                  String ajaxRequestParm = request.getParameter(UifParameters.AJAX_REQUEST);
                  if (StringUtils.isNotBlank(ajaxRequestParm)) {
                      oleKradAuthorizationForm.setAjaxRequest(Boolean.parseBoolean(ajaxRequestParm));
                  }
              }
  
              // Set the view object
              oleKradAuthorizationForm.setView(getViewService().getViewById("OLEKRADAuthorizationView"));
  
              // Add a new History entry to avoid errors in the postHandle
  
              HistoryEntry entry = new HistoryEntry("", "", "Incident Report", "", "");
  
              // oleKradAuthorizationForm.setFormHistory(history);
  
              // Set the ajax return type
              oleKradAuthorizationForm.setAjaxReturnType(UifConstants.AjaxReturnTypes.UPDATEVIEW.getKey());
  
             ModelAndView modelAndView = UifControllerHelper.getUIFModelAndView(oleKradAuthorizationForm, "");
             try {
                 UifControllerHelper.postControllerHandle(request, response, handler, modelAndView);
             } catch (Exception e) {
                 LOG.error("An error stopped the incident form from loading", e);
             }
 
             return modelAndView;
         }
         else {
             return super.resolveException(request,response,handler,ex);
 
         }
 
 
 
 
     }
 }