/*

  * Copyright 2006-2011 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.opensource.org/licenses/ecl2.php

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.kuali.rice.kew.preferences.web;

 import org.apache.commons.lang.StringUtils;

 import org.apache.struts.action.ActionForm;

 import org.apache.struts.action.ActionForward;

 import org.apache.struts.action.ActionMapping;

 import org.apache.struts.action.ActionMessages;

 import org.kuali.rice.core.api.config.property.ConfigContext;

 import org.kuali.rice.core.util.ConcreteKeyValue;

 import org.kuali.rice.core.util.KeyValue;

 import org.kuali.rice.kew.preferences.Preferences;

 import org.kuali.rice.kew.preferences.service.PreferencesService;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 import org.kuali.rice.kew.util.KEWConstants;

 import org.kuali.rice.kew.web.KewKualiAction;

 import org.kuali.rice.krad.UserSession;

 import org.kuali.rice.krad.util.GlobalVariables;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.ArrayList;

 import java.util.List;

 /**

  * A Struts Action for interfaces with {@link Preferences}.

  *

  * @see PreferencesService

  * @see Preferences

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class PreferencesAction extends KewKualiAction {

     @Override

         public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

         initForm(request, form);

         request.setAttribute("Constants", getServlet().getServletContext().getAttribute("KEWConstants"));

         return super.execute(mapping, form, request, response);

     }

     @Override

         public ActionForward start(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

         PreferencesService preferencesService = (PreferencesService) KEWServiceLocator.getService(KEWServiceLocator.PREFERENCES_SERVICE);

         PreferencesForm preferencesForm = (PreferencesForm) form;

         preferencesForm.setPreferences(preferencesService.getPreferences(getUserSession().getPrincipalId()));

         return mapping.findForward("basic");

     }

     public ActionForward save(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

         PreferencesService prefSrv = (PreferencesService) KEWServiceLocator.getService(KEWServiceLocator.PREFERENCES_SERVICE);

         PreferencesForm prefForm = (PreferencesForm) form;

         prefForm.validatePreferences();

         if (GlobalVariables.getMessageMap().hasNoErrors()) {

             prefSrv.savePreferences(getUserSession().getPrincipalId(), prefForm.getPreferences());

         }

         GlobalVariables.getUserSession().addObject(KEWConstants.UPDATE_ACTION_LIST_ATTR_NAME, Boolean.TRUE);

         GlobalVariables.getUserSession().removeObject(KEWConstants.PREFERENCES);

         if (! StringUtils.isEmpty(prefForm.getReturnMapping())) {

             return mapping.findForward(prefForm.getReturnMapping());

         }

         return mapping.findForward("basic");

     }

     public ActionMessages initForm(HttpServletRequest request, ActionForm form) throws Exception {

         request.setAttribute("actionListContent", KEWConstants.ACTION_LIST_CONTENT);

         getDelegatorFilterChoices(request);

         getPrimaryDelegateFilterChoices(request);

         PreferencesForm prefForm = (PreferencesForm)form;

         prefForm.setShowOutbox(ConfigContext.getCurrentContextConfig().getOutBoxOn());

         return null;

     }

     public void getDelegatorFilterChoices(HttpServletRequest request) {

         List<KeyValue> delegatorFilterChoices = new ArrayList<KeyValue>();

         delegatorFilterChoices.add(new ConcreteKeyValue(KEWConstants.DELEGATORS_ON_FILTER_PAGE, KEWConstants.DELEGATORS_ON_FILTER_PAGE));

         delegatorFilterChoices.add(new ConcreteKeyValue(KEWConstants.DELEGATORS_ON_ACTION_LIST_PAGE, KEWConstants.DELEGATORS_ON_ACTION_LIST_PAGE));

         request.setAttribute("delegatorFilter", delegatorFilterChoices);

     }

     public void getPrimaryDelegateFilterChoices(HttpServletRequest request) {

             List<KeyValue> primaryDelegateFilterChoices = new ArrayList<KeyValue>();

             primaryDelegateFilterChoices.add(new ConcreteKeyValue(KEWConstants.PRIMARY_DELEGATES_ON_FILTER_PAGE, KEWConstants.PRIMARY_DELEGATES_ON_FILTER_PAGE));

         primaryDelegateFilterChoices.add(new ConcreteKeyValue(KEWConstants.PRIMARY_DELEGATES_ON_ACTION_LIST_PAGE, KEWConstants.PRIMARY_DELEGATES_ON_ACTION_LIST_PAGE));

         request.setAttribute("primaryDelegateFilter", primaryDelegateFilterChoices);

     }

     private static UserSession getUserSession() {

         return GlobalVariables.getUserSession();

     }

 }