/*
    * This software was designed and created by Jason Carroll.
    * Copyright (c) 2002, 2003, 2004 Jason Carroll.
    * The author can be reached at jcarroll@cowsultants.com
    * ITracker website: http://www.cowsultants.com
    * ITracker forums: http://www.cowsultants.com/phpBB/index.php
    *
    * This program is free software; you can redistribute it and/or modify
    * it only under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   */
  
  package org.itracker.web.actions.admin.configuration;
  
  import org.apache.commons.beanutils.PropertyUtils;
  import org.apache.log4j.Logger;
  import org.apache.struts.action.*;
  import org.itracker.SystemConfigurationException;
  import org.itracker.core.resources.ITrackerResources;
  import org.itracker.model.Configuration;
  import org.itracker.model.CustomField;
  import org.itracker.model.util.CustomFieldUtilities;
  import org.itracker.model.util.SystemConfigurationUtilities;
  import org.itracker.model.util.UserUtilities;
  import org.itracker.services.ConfigurationService;
  import org.itracker.web.actions.base.ItrackerBaseAction;
  import org.itracker.web.util.LoginUtilities;
  import org.itracker.web.util.ServletContextUtils;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  
  
  public class RemoveCustomFieldAction extends ItrackerBaseAction {
      private static final Logger log = Logger.getLogger(RemoveCustomFieldAction.class);
  
  
      public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          ActionMessages errors = new ActionMessages();
  
  
          if (!LoginUtilities.hasPermission(UserUtilities.PERMISSION_USER_ADMIN, request, response)) {
              return mapping.findForward("unauthorized");
          }
  
          try {
              ConfigurationService configurationService = ServletContextUtils.getItrackerServices().getConfigurationService();
  
              Integer valueId = (Integer) PropertyUtils.getSimpleProperty(form, "id");
              if (valueId == null || valueId.intValue() <= 0) {
                  throw new SystemConfigurationException("Invalid custom field id.");
              }
  
              CustomField customField = configurationService.getCustomField(valueId);
              if (customField == null) {
                  throw new SystemConfigurationException("Invalid custom field id.");
              }
              String key = CustomFieldUtilities.getCustomFieldLabelKey(customField.getId());
              boolean status = configurationService.removeCustomField(customField.getId());
              if (status) {
                  if (key != null)
                      ITrackerResources.clearKeyFromBundles(key, false);
              } else {
                  errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.system"));
              }
  
              configurationService.resetConfigurationCache(Configuration.Type.customfield);
              if (!errors.isEmpty()) {
                  saveErrors(request, errors);
                  return mapping.getInputForward();
              }
              return mapping.findForward("listconfiguration");
          } catch (SystemConfigurationException sce) {
              log.debug(sce.getMessage(), sce);
              errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.invalidcustomfield"));
          } catch (NumberFormatException nfe) {
              errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.invalidcustomfield"));
              log.debug("Invalid custom field  id " + request.getParameter("id") + " specified.");
          } catch (Exception e) {
              errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("itracker.web.error.system"));
              log.error("System Error.", e);
          }
          if (!errors.isEmpty()) {
              saveMessages(request, errors);
          }
          return mapping.findForward("error");
      }
  
  }