/*

  * Copyright 2011 The Kuali Foundation

  * 

  * Licensed under the Educational Community License, Version 1.0 (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/ecl1.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.student.enrollment.class2.acal.controller;

 import org.apache.commons.lang.BooleanUtils;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;

 import org.kuali.rice.krad.uif.UifParameters;

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

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

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

 import org.kuali.rice.krad.web.controller.UifControllerBase;

 import org.kuali.rice.krad.web.form.UifFormBase;

 import org.kuali.student.enrollment.acal.constants.AcademicCalendarServiceConstants;

 import org.kuali.student.enrollment.acal.dto.AcademicCalendarInfo;

 import org.kuali.student.enrollment.acal.dto.TermInfo;

 import org.kuali.student.enrollment.acal.service.AcademicCalendarService;

 import org.kuali.student.enrollment.class2.acal.dto.*;

 import org.kuali.student.enrollment.class2.acal.form.AcademicCalendarForm;

 import org.kuali.student.enrollment.class2.acal.util.CalendarConstants;

 import org.kuali.student.r2.common.util.constants.AtpServiceConstants;

 import org.springframework.stereotype.Controller;

 import org.springframework.validation.BindingResult;

 import org.springframework.web.bind.annotation.ModelAttribute;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.servlet.ModelAndView;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import javax.xml.namespace.QName;

 import java.util.*;

 /**

  * This controller handles all the request from Academic calendar UI.

  *

  * @author Kuali Student Team

  */

 @Controller

 @RequestMapping(value = "/academicCalendar")

 public class AcademicCalendarController extends UifControllerBase {

     private AcademicCalendarService acalService;

     @Override

     protected UifFormBase createInitialForm(HttpServletRequest request) {

         return new AcademicCalendarForm();

     }

     /**

      * This GET method loads an academic calendar based on the parameters passed into the request.

      *

      * These are the supported request parameters

      * 1. id - Academic Calendar Id to load in to UI

      * 2. readOnlyView - If true, sets the view as read only

      * 3. selectTab - can be 'info' or 'term'

      *

      */

     @Override

     @RequestMapping(method = RequestMethod.GET, params = "methodToCall=start")

     public ModelAndView start(@ModelAttribute("KualiForm") UifFormBase form, BindingResult result,

                               HttpServletRequest request, HttpServletResponse response) {

         AcademicCalendarForm acalForm = (AcademicCalendarForm) form;

         String acalId = request.getParameter(CalendarConstants.CALENDAR_ID);

         if (StringUtils.isNotBlank(acalId)){

             try {

                 loadAcademicCalendar(acalId, acalForm);

             } catch (Exception ex) {

                 throw new RuntimeException(ex);

             }

         }

         String readOnlyView = request.getParameter(CalendarConstants.READ_ONLY_VIEW);

         acalForm.getView().setReadOnly(BooleanUtils.toBoolean(readOnlyView));

         if (StringUtils.isNotBlank(request.getParameter(CalendarConstants.SELECT_TAB))) {

             acalForm.setDefaultTabToShow(request.getParameter(CalendarConstants.SELECT_TAB));

         }

         return super.start(form, result, request, response);

     }

     /**

      * This method creates a blank academic calendar.

      */

     @RequestMapping(params = "methodToCall=createBlankCalendar")

     public ModelAndView createBlankCalendar(@ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                             HttpServletRequest request, HttpServletResponse response){

         acalForm.setAcademicCalendarInfo(new AcademicCalendarInfo());

         acalForm.setEvents(new ArrayList<AcalEventWrapper>());

         acalForm.setHolidayCalendarList(new ArrayList<HolidayCalendarWrapper>());

         acalForm.setTermWrapperList(new ArrayList<AcademicTermWrapper>());

         return getUIFModelAndView(acalForm, CalendarConstants.ACADEMIC_CALENDAR_EDIT_PAGE);

     }

     /**

      * This GET method is called before the Create New Academic Calendar page is displayed

      *

      * It fills in the original Acal for the form with the latest calendar found, by default

      */

     @RequestMapping(method = RequestMethod.GET, params = "methodToCall=startNew")

     public ModelAndView startNew( @ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                   HttpServletRequest request, HttpServletResponse response) {

         try {

             AcademicCalendarInfo acalInfo = acalForm.getViewHelperService().getLatestAcademicCalendar();

             acalForm.setOrgAcalInfo(acalInfo);

         }

         catch (Exception x) {

             throw new RuntimeException(x);

         }

         return getUIFModelAndView(acalForm);

     }

     @RequestMapping(params = "methodToCall=toEdit")

     public ModelAndView toEdit(@ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                               HttpServletRequest request, HttpServletResponse response){

         AcademicCalendarInfo acalInfo = acalForm.getAcademicCalendarInfo();

         AcademicCalendarInfo orgAcalInfo = acalForm.getOrgAcalInfo();

         if (StringUtils.isBlank(acalInfo.getId()) && StringUtils.isNotBlank(orgAcalInfo.getId())){

             try{

                 loadAcademicCalendar(orgAcalInfo.getId(), acalForm);

              } catch (Exception ex) {

                  throw new RuntimeException("unable to getAcademicCalendar");

             }

             acalForm.setOrgAcalInfo(new AcademicCalendarInfo());

         }

         acalForm.getView().setReadOnly(false);

         return getUIFModelAndView(acalForm, CalendarConstants.ACADEMIC_CALENDAR_EDIT_PAGE);

     }

     @RequestMapping(method = RequestMethod.GET, params = "methodToCall=copyForNew")

     public ModelAndView copyForNew( @ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                   HttpServletRequest request, HttpServletResponse response) {

         AcademicCalendarInfo acalInfo = null;

         String acalId = request.getParameter(CalendarConstants.CALENDAR_ID);

         if (acalId != null && !acalId.trim().isEmpty()) {

             String pageId = request.getParameter(CalendarConstants.PAGE_ID);

             if (CalendarConstants.ACADEMIC_CALENDAR_COPY_PAGE.equals(pageId)) {

                 try {

                     acalInfo= getAcalService().getAcademicCalendar(acalId, acalForm.getContextInfo());

                     acalForm.setOrgAcalInfo(acalInfo);

                 } catch (Exception ex) {

                     throw new RuntimeException(ex);

                 }

             }

         }

         else {

             // try to get the AC from the form (in case of copy from the Acal view page) and set it as the Original Acal

             try {

                 acalInfo = acalForm.getAcademicCalendarInfo();

                 acalForm.reset();

                 acalForm.setNewCalendar(true);

                 acalForm.setOrgAcalInfo(acalInfo);

             }

             catch (Exception x) {

                 throw new RuntimeException(x);

             }

         }

         return copy(acalForm, result, request, response);

     }

     /**

      * Passes on request from Acal view to copy the Acal to the copyForNew method.  Needed a forwarder here because the

      * call is a GET rather than a POST

      *

      * @param acalForm

      * @param result

      * @param request

      * @param response

      * @return

      */

     @RequestMapping(params = "methodToCall=toCopy")

     public ModelAndView toCopy(@ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                               HttpServletRequest request, HttpServletResponse response){

         return copyForNew(acalForm, result, request, response);

     }

     //copy over from the existing AcalInfo to create a new

     @RequestMapping(method = RequestMethod.POST, params="methodToCall=copy")

     public ModelAndView copy( @ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                               HttpServletRequest request, HttpServletResponse response) {

         try {

            acalForm.getViewHelperService().copyToCreateAcademicCalendar(acalForm);

         }catch (Exception ex) {

             throw new RuntimeException(ex);

         }

         return getUIFModelAndView(acalForm, CalendarConstants.ACADEMIC_CALENDAR_EDIT_PAGE);

     }

     //Editing Hcal is implemented fully and it's working.. but we're having some issues with KRAD form management

     //This will be implemented in future milestones

     @RequestMapping(method = RequestMethod.POST, params="methodToCall=editHolidayCalendar")

     public ModelAndView editHolidayCalendar( @ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                             HttpServletRequest request, HttpServletResponse response) {

         String selectedCollectionPath = acalForm.getActionParamaterValue(UifParameters.SELLECTED_COLLECTION_PATH);

         if (StringUtils.isBlank(selectedCollectionPath)) {

             throw new RuntimeException("unable to determine the selected collection path");

         }

         int selectedLineIndex = -1;

         String selectedLine = acalForm.getActionParamaterValue(UifParameters.SELECTED_LINE_INDEX);

         if (StringUtils.isNotBlank(selectedLine)) {

             selectedLineIndex = Integer.parseInt(selectedLine);

         }

         if (selectedLineIndex == -1) {

             throw new RuntimeException("unable to determine the selected line index");

         }

         Properties hcalURLParam = new Properties();

         hcalURLParam.put(KRADConstants.DISPATCH_REQUEST_PARAMETER, CalendarConstants.HC_EDIT_METHOD);

         hcalURLParam.put(CalendarConstants.CALENDAR_ID, acalForm.getHolidayCalendarList().get(selectedLineIndex).getId());

         hcalURLParam.put(UifParameters.VIEW_ID, CalendarConstants.HOLIDAYCALENDAR_FLOWVIEW);

         hcalURLParam.put(UifParameters.PAGE_ID, CalendarConstants.HOLIDAYCALENDAR_EDITPAGE);

         hcalURLParam.put(UifParameters.RETURN_FORM_KEY, acalForm.getFormKey());

         Properties acalReturnURLParams = new Properties();

         acalReturnURLParams.put(KRADConstants.DISPATCH_REQUEST_PARAMETER, CalendarConstants.AC_EDIT_METHOD);

         acalReturnURLParams.put(UifParameters.VIEW_ID, CalendarConstants.ACAL_VIEW);

         acalReturnURLParams.put(UifParameters.PAGE_ID, CalendarConstants.ACADEMIC_CALENDAR_EDIT_PAGE);

         String returnUrl = UrlFactory.parameterizeUrl(CalendarConstants.ACAL_CONTROLLER_PATH, acalReturnURLParams);

         hcalURLParam.put(UifParameters.RETURN_LOCATION, returnUrl);

         return super.performRedirect(acalForm,CalendarConstants.HCAL_CONTROLLER_PATH, hcalURLParam);

     }

     /**

      * redirect to search Calendar page

      */

     @RequestMapping(params = "methodToCall=search")

     public ModelAndView search(@ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                              HttpServletRequest request, HttpServletResponse response) throws Exception {

         String controllerPath = CalendarConstants.CALENDAR_SEARCH_CONTROLLER_PATH;

         Properties urlParameters = new Properties();

         urlParameters.put(KRADConstants.DISPATCH_REQUEST_PARAMETER, KRADConstants.START_METHOD);

         urlParameters.put(UifParameters.VIEW_ID, CalendarConstants.CALENDAR_SEARCH_VIEW);

         return super.performRedirect(acalForm,controllerPath, urlParameters);

     }

     /**

      * Method used to save AcademicCalendar

      */

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=save")

     public ModelAndView save(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                              HttpServletRequest request, HttpServletResponse response) throws Exception{

         return saveAcademicCalendar(academicCalendarForm, CalendarConstants.MSG_INFO_ACADEMIC_CALENDAR_SAVED,false);

     }

     /**

      * Method used to delete AcademicCalendar

      */

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=delete")

     public ModelAndView delete(@ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                    HttpServletRequest request, HttpServletResponse response) throws Exception {

         acalForm.getViewHelperService().deleteAcademicCalendar(acalForm.getAcademicCalendarInfo().getId());

         GlobalVariables.getMessageMap().putInfo(KRADConstants.GLOBAL_MESSAGES, CalendarConstants.MSG_INFO_SEARCH_DELETE_SUCCESS, acalForm.getAcademicCalendarInfo().getName());

         Properties urlParameters = new  Properties();

         urlParameters.put("viewId", CalendarConstants.ENROLLMENT_HOME_VIEW);

         urlParameters.put("methodToCall", KRADConstants.START_METHOD);

         return performRedirect(acalForm, request.getRequestURL().toString(), urlParameters);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=cancelTerm")

     public ModelAndView cancelTerm(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                         HttpServletRequest request, HttpServletResponse response) {

         String selectedCollectionPath = academicCalendarForm.getActionParamaterValue(UifParameters.SELLECTED_COLLECTION_PATH);

         if (StringUtils.isBlank(selectedCollectionPath)) {

             throw new RuntimeException("unable to determine the selected collection path");

         }

         int selectedLineIndex = -1;

         String selectedLine = academicCalendarForm.getActionParamaterValue(UifParameters.SELECTED_LINE_INDEX);

         if (StringUtils.isNotBlank(selectedLine)) {

             selectedLineIndex = Integer.parseInt(selectedLine);

         }

         if (selectedLineIndex == -1) {

             throw new RuntimeException("unable to determine the selected line index");

         }

         AcademicTermWrapper termWrapper = academicCalendarForm.getTermWrapperList().get(selectedLineIndex);

         if (termWrapper.isNew()){

            academicCalendarForm.getTermWrapperList().remove(selectedLineIndex);

         }else{

             try {

                 TermInfo termInfo = getAcalService().getTerm(termWrapper.getTermInfo().getId(), academicCalendarForm.getContextInfo());

                 AcademicTermWrapper termWrapperFromDB = academicCalendarForm.getViewHelperService().populateTermWrapper(termInfo, false);

                 academicCalendarForm.getTermWrapperList().set(selectedLineIndex,termWrapperFromDB);

                try{

                     academicCalendarForm.getViewHelperService().populateInstructionalDays(termWrapperFromDB);

                 }catch(Exception e){

                     //TODO: FIXME: Have to handle the error.. but for now, as it's causing issue, just skipping calculation when there are errors

                     e.printStackTrace();

                 }

             } catch (Exception e) {

                 throw new RuntimeException(e);

             }

         }

         return getUIFModelAndView(academicCalendarForm);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=makeTermOfficial")

     public ModelAndView makeTermOfficial(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                         HttpServletRequest request, HttpServletResponse response) {

         String selectedCollectionPath = academicCalendarForm.getActionParamaterValue(UifParameters.SELLECTED_COLLECTION_PATH);

         if (StringUtils.isBlank(selectedCollectionPath)) {

             throw new RuntimeException("unable to determine the selected collection path");

         }

         int selectedLineIndex = -1;

         String selectedLine = academicCalendarForm.getActionParamaterValue(UifParameters.SELECTED_LINE_INDEX);

         if (StringUtils.isNotBlank(selectedLine)) {

             selectedLineIndex = Integer.parseInt(selectedLine);

         }

         if (selectedLineIndex == -1) {

             throw new RuntimeException("unable to determine the selected line index");

         }

         AcademicTermWrapper termWrapper = academicCalendarForm.getTermWrapperList().get(selectedLineIndex);

         academicCalendarForm.getViewHelperService().validateTerm(academicCalendarForm.getTermWrapperList(),selectedLineIndex,academicCalendarForm.getAcademicCalendarInfo());

         if (GlobalVariables.getMessageMap().getErrorCount() > 0){

            return getUIFModelAndView(academicCalendarForm);

         }

         try{

             academicCalendarForm.getViewHelperService().saveTerm(termWrapper, academicCalendarForm.getAcademicCalendarInfo().getId(),true);

             GlobalVariables.getMessageMap().putInfo(KRADConstants.GLOBAL_ERRORS,"info.enroll.term.official",termWrapper.getTermNameForUI());

         }catch (Exception e){

            throw new RuntimeException(e);

         }

        try{

             academicCalendarForm.getViewHelperService().populateInstructionalDays(termWrapper);

         }catch(Exception e){

             //TODO: FIXME: Have to handle the error.. but for now, as it's causing issue, just skipping calculation when there are errors

             e.printStackTrace();

         }

         return getUIFModelAndView(academicCalendarForm);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=cancelAddingTerm")

     public ModelAndView cancelAddingTerm(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                         HttpServletRequest request, HttpServletResponse response) {

         ((AcademicTermWrapper)academicCalendarForm.getNewCollectionLines().get("termWrapperList")).clear();

         return getUIFModelAndView(academicCalendarForm);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=cancelAddingHoliday")

     public ModelAndView cancelAddingHoliday(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                         HttpServletRequest request, HttpServletResponse response) {

         ((HolidayCalendarWrapper)academicCalendarForm.getNewCollectionLines().get("holidayCalendarList")).setId(StringUtils.EMPTY);

         return getUIFModelAndView(academicCalendarForm);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=deleteTerm")

     public ModelAndView deleteTerm(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                         HttpServletRequest request, HttpServletResponse response) {

         String selectedCollectionPath = academicCalendarForm.getActionParamaterValue(UifParameters.SELLECTED_COLLECTION_PATH);

         if (StringUtils.isBlank(selectedCollectionPath)) {

             throw new RuntimeException("unable to determine the selected collection path");

         }

         int selectedLineIndex = -1;

         String selectedLine = academicCalendarForm.getActionParamaterValue(UifParameters.SELECTED_LINE_INDEX);

         if (StringUtils.isNotBlank(selectedLine)) {

             selectedLineIndex = Integer.parseInt(selectedLine);

         }

         if (selectedLineIndex == -1) {

             throw new RuntimeException("unable to determine the selected line index");

         }

         AcademicTermWrapper termWrapper = academicCalendarForm.getTermWrapperList().get(selectedLineIndex);

         if (!termWrapper.isNew()){

             academicCalendarForm.getTermsToDeleteOnSave().add(termWrapper);

         }

         academicCalendarForm.getTermWrapperList().remove(selectedLineIndex);

         return getUIFModelAndView(academicCalendarForm);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=deleteKeyDate")

     public ModelAndView deleteKeyDate(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                         HttpServletRequest request, HttpServletResponse response) {

         String selectedCollectionPath = academicCalendarForm.getActionParamaterValue(UifParameters.SELLECTED_COLLECTION_PATH);

         if (StringUtils.isBlank(selectedCollectionPath)) {

             throw new RuntimeException("unable to determine the selected collection path");

         }

         int selectedLineIndex = -1;

         String selectedLine = academicCalendarForm.getActionParamaterValue(UifParameters.SELECTED_LINE_INDEX);

         if (StringUtils.isNotBlank(selectedLine)) {

             selectedLineIndex = Integer.parseInt(selectedLine);

         }

         if (selectedLineIndex == -1) {

             throw new RuntimeException("unable to determine the selected line index");

         }

         String selectedTermIndex = StringUtils.substringBetween(selectedCollectionPath,"termWrapperList[","]");

         String selectedKeyDateGroup = StringUtils.substringBetween(selectedCollectionPath,"keyDatesGroupWrappers[","]");

         AcademicTermWrapper termWrapper = academicCalendarForm.getTermWrapperList().get(Integer.parseInt(selectedTermIndex));

         KeyDatesGroupWrapper keydateGroup = termWrapper.getKeyDatesGroupWrappers().get(Integer.parseInt(selectedKeyDateGroup));

         KeyDateWrapper keyDateWrapper = keydateGroup.getKeydates().get(selectedLineIndex);

         if (StringUtils.isNotBlank(keyDateWrapper.getKeyDateInfo().getId())){

             termWrapper.getKeyDatesToDeleteOnSave().add(keyDateWrapper);

         }

         keydateGroup.getKeydates().remove(selectedLineIndex);

         return getUIFModelAndView(academicCalendarForm);

     }

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=deleteKeyDateGroup")

     public ModelAndView deleteKeyDateGroup(@ModelAttribute("KualiForm") AcademicCalendarForm academicCalendarForm, BindingResult result,

                                            HttpServletRequest request, HttpServletResponse response) {

         String selectedCollectionPath = academicCalendarForm.getActionParamaterValue(UifParameters.SELLECTED_COLLECTION_PATH);

         if (StringUtils.isBlank(selectedCollectionPath)) {

             throw new RuntimeException("unable to determine the selected collection path");

         }

         int selectedLineIndex = -1;

         String selectedLine = academicCalendarForm.getActionParamaterValue(UifParameters.SELECTED_LINE_INDEX);

         if (StringUtils.isNotBlank(selectedLine)) {

             selectedLineIndex = Integer.parseInt(selectedLine);

         }

         if (selectedLineIndex == -1) {

             throw new RuntimeException("unable to determine the selected line index");

         }

         String selectedTermIndex = StringUtils.substringBetween(selectedCollectionPath,"termWrapperList[","]");

         AcademicTermWrapper termWrapper = academicCalendarForm.getTermWrapperList().get(Integer.parseInt(selectedTermIndex));

         KeyDatesGroupWrapper keydateGroup = termWrapper.getKeyDatesGroupWrappers().get(selectedLineIndex);

         for (KeyDateWrapper keyDateWrapper : keydateGroup.getKeydates()) {

             if (StringUtils.isNotBlank(keyDateWrapper.getKeyDateInfo().getId())){

                 termWrapper.getKeyDatesToDeleteOnSave().add(keyDateWrapper);

             }

         }

         termWrapper.getKeyDatesGroupWrappers().remove(keydateGroup);

         return getUIFModelAndView(academicCalendarForm);

     }

     /**

      * Method used to set Acal as official

      */

     @RequestMapping(method = RequestMethod.POST, params = "methodToCall=makeAcalOfficial")

     public ModelAndView makeAcalOfficial(@ModelAttribute("KualiForm") AcademicCalendarForm acalForm, BindingResult result,

                                     HttpServletRequest request, HttpServletResponse response) throws Exception {

         return saveAcademicCalendar(acalForm, CalendarConstants.MSG_INFO_ACADEMIC_CALENDAR_OFFICIAL, true);

     }

     private void loadAcademicCalendar(String acalId, AcademicCalendarForm acalForm) throws Exception {

         AcademicCalendarInfo acalInfo = getAcalService().getAcademicCalendar(acalId,acalForm.getContextInfo());

         acalForm.setAcademicCalendarInfo(acalInfo);

         acalForm.setAdminOrgName(getAdminOrgNameById(acalInfo.getAdminOrgId()));

         acalForm.setNewCalendar(false);

         acalForm.setOfficialCalendar(StringUtils.equals(acalInfo.getStateKey(),AtpServiceConstants.ATP_OFFICIAL_STATE_KEY));

         List<AcalEventWrapper> events = acalForm.getViewHelperService().populateEventWrappers(acalForm);

         acalForm.setEvents(events);

         List<AcademicTermWrapper> termWrappers = acalForm.getViewHelperService().populateTermWrappers(acalId, false);

         acalForm.setTermWrapperList(termWrappers);

         List<HolidayCalendarWrapper> holidayCalendarWrapperList = acalForm.getViewHelperService().loadHolidayCalendars(acalInfo);

         acalForm.setHolidayCalendarList(holidayCalendarWrapperList);

         //Calculate instructional days (if HC exists)

         if (acalForm.getHolidayCalendarList() != null && !acalForm.getHolidayCalendarList().isEmpty()) {

             acalForm.getViewHelperService().populateInstructionalDays(acalForm.getTermWrapperList());

         }

     }

     private AcademicCalendarInfo processHolidayCalendars(AcademicCalendarForm academicCalendarForm)    {

         AcademicCalendarInfo acalInfo = academicCalendarForm.getAcademicCalendarInfo();

         List<HolidayCalendarWrapper> holidayCalendarList = academicCalendarForm.getHolidayCalendarList();

         List<String> holidayCalendarIds = new ArrayList<String>();

         if (holidayCalendarList != null && !holidayCalendarList.isEmpty()) {

             for (HolidayCalendarWrapper hcWrapper : holidayCalendarList){

                 holidayCalendarIds.add(hcWrapper.getHolidayCalendarInfo().getId());

             }

         }

         // if the list from the form is empty, then all holiday calendars have been removed (or none have been assigned)

         // so an empty list will be assigned to the AcademicCalendarInfo

         acalInfo.setHolidayCalendarIds(holidayCalendarIds);

         academicCalendarForm.setAcademicCalendarInfo(acalInfo);

         return acalInfo;

     }

     private ModelAndView saveAcademicCalendar(AcademicCalendarForm academicCalendarForm, String keyToDisplayOnSave, boolean isOfficial) throws Exception {

         AcademicCalendarInfo academicCalendarInfo = academicCalendarForm.getAcademicCalendarInfo();

         //Populate default times

         academicCalendarForm.getViewHelperService().populateAcademicCalendarDefaults(academicCalendarForm);

         //Validate Acal

         academicCalendarForm.getViewHelperService().validateAcademicCalendar(academicCalendarForm);

         if (GlobalVariables.getMessageMap().getErrorCount() > 0){

             return getUIFModelAndView(academicCalendarForm);

         }

         //If validation succeeds, continue save

         if(StringUtils.isNotBlank(academicCalendarInfo.getId())){

             // 1. update acal and AC-HC relationships

             academicCalendarInfo = processHolidayCalendars(academicCalendarForm);

             if (isOfficial) {

                 academicCalendarInfo.setStateKey(AcademicCalendarServiceConstants.ACADEMIC_CALENDAR_OFFICIAL_STATE_KEY);

             }

             AcademicCalendarInfo acalInfo = getAcalService().updateAcademicCalendar(academicCalendarInfo.getId(), academicCalendarInfo, academicCalendarForm.getContextInfo() );

             academicCalendarForm.setAcademicCalendarInfo(getAcalService().getAcademicCalendar(acalInfo.getId(), academicCalendarForm.getContextInfo()));

             // 2. update acalEvents if any

             List<AcalEventWrapper> events = academicCalendarForm.getEvents();

             processEvents(academicCalendarForm, events, acalInfo.getId());

         }

         else {

             AcademicCalendarInfo acalInfo = null;

             // 1. create  a new acalInfo with a list of HC Ids

             processHolidayCalendars(academicCalendarForm);

             acalInfo = academicCalendarForm.getViewHelperService().createAcademicCalendar(academicCalendarForm);

             academicCalendarForm.setAcademicCalendarInfo(getAcalService().getAcademicCalendar(acalInfo.getId(), academicCalendarForm.getContextInfo()));

             // 2. create new events if any

             createEvents(acalInfo.getId(), academicCalendarForm);

         }

         //Delete terms which are deleted by the user in the ui

         for (AcademicTermWrapper termWrapper : academicCalendarForm.getTermsToDeleteOnSave()){

             getAcalService().deleteTerm(termWrapper.getTermInfo().getId(),academicCalendarForm.getContextInfo());

         }

         academicCalendarForm.getTermsToDeleteOnSave().clear();

         //Save Term and keydates

         for(AcademicTermWrapper termWrapper : academicCalendarForm.getTermWrapperList()){

             academicCalendarForm.getViewHelperService().saveTerm(termWrapper, academicCalendarForm.getAcademicCalendarInfo().getId(),false);

         }

         //Calculate instructional days (if HC exists)

         try{

             academicCalendarForm.getViewHelperService().populateInstructionalDays(academicCalendarForm.getTermWrapperList());

         }catch(Exception e){

             //FIXME: Have to handle the error.. but for now, as it's causing issue, just skipping calculation when there are errors

             e.printStackTrace();

         }

         academicCalendarForm.setNewCalendar(false);

         if (isOfficial) {

             academicCalendarForm.setOfficialCalendar(true);

             academicCalendarForm.getView().setReadOnly(true);

         }

         GlobalVariables.getMessageMap().putInfo(KRADConstants.GLOBAL_MESSAGES, keyToDisplayOnSave, academicCalendarForm.getAcademicCalendarInfo().getName());

         return getUIFModelAndView(academicCalendarForm);

     }

     private String getAdminOrgNameById(String id){

         //TODO: hard-coded for now, going to call OrgService

         String adminOrgName = null;

         Map<String, String> allAcalOrgs = new HashMap<String, String>();

         allAcalOrgs.put("102", "Registrar's Office");

         allAcalOrgs.put("34", "Medical School");

         if(allAcalOrgs.containsKey(id)){

             adminOrgName = allAcalOrgs.get(id);

         }

         return adminOrgName;

     }

     private void createEvents(String acalId, AcademicCalendarForm acalForm) throws Exception {

         List<AcalEventWrapper> events = acalForm.getEvents();

         if(events != null && !events.isEmpty()){

             List<AcalEventWrapper> createdEvents = new ArrayList<AcalEventWrapper>();

             for (AcalEventWrapper event : events){

                 createdEvents.add(acalForm.getViewHelperService().createEvent(acalId, event));

             }

             acalForm.setEvents(createdEvents);

         }

     }

     /**

      * Update existing events, create new events, and delete events that do not exist any more when a user modifies and saves an Academic Calendar

      */

     private void processEvents(AcademicCalendarForm acalForm, List<AcalEventWrapper> events, String acalId)throws Exception{

         List<AcalEventWrapper> updatedEvents = new ArrayList<AcalEventWrapper>();

         List<String> currentEventIds = getExistingEventIds(acalForm);

         if(events != null && !events.isEmpty()){

             for(AcalEventWrapper event : events){

                 if(currentEventIds.contains(event.getAcalEventInfo().getId())){

                     //update event

                     AcalEventWrapper updatedEvent = acalForm.getViewHelperService().updateEvent(event.getAcalEventInfo().getId(), event);

                     updatedEvents.add(updatedEvent);

                     currentEventIds.remove(event.getAcalEventInfo().getId());

                 }

                 else {

                     //create a new event

                     AcalEventWrapper createdEvent = acalForm.getViewHelperService().createEvent(acalId, event);

                     updatedEvents.add(createdEvent);

                 }

             }

         }

         acalForm.setEvents(updatedEvents);

         //delete events that have been removed by the user

         if (currentEventIds != null && currentEventIds.size() > 0){

             for(String eventId: currentEventIds){

                 //TODO: delete completely from db, when "deleted" state is available, update the event with state ="deleted"

                 acalForm.getViewHelperService().deleteEvent(eventId);

             }

         }

     }

     private List<String> getExistingEventIds(AcademicCalendarForm acalForm) throws Exception{

         List<AcalEventWrapper> events = acalForm.getViewHelperService().populateEventWrappers(acalForm);

         List<String> eventIds = new ArrayList<String>();

         if(events != null && !events.isEmpty()){

             for(AcalEventWrapper event : events){

                 eventIds.add(event.getAcalEventInfo().getId());

             }

         }

         return eventIds;

     }

     public AcademicCalendarService getAcalService() {

         if(acalService == null) {

             acalService = (AcademicCalendarService) GlobalResourceLoader.getService(new QName(AcademicCalendarServiceConstants.NAMESPACE, AcademicCalendarServiceConstants.SERVICE_NAME_LOCAL_PART));

         }

         return this.acalService;

     }

 }