/**
    * Copyright 2004-2014 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.kpme.tklm.common;
  
  import java.util.*;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.struts.action.ActionForm;
  import org.displaytag.tags.TableTagParameters;
  import org.displaytag.util.ParamEncoder;
  import org.kuali.kpme.core.assignment.Assignment;
  import org.kuali.kpme.core.calendar.entry.CalendarEntry;
  import org.kuali.kpme.core.service.HrServiceLocator;
  import org.kuali.kpme.core.util.HrConstants;
  import org.kuali.kpme.core.util.HrContext;
  import org.kuali.kpme.core.workarea.WorkArea;
  import org.kuali.kpme.tklm.time.detail.web.ActionFormUtils;
  import org.kuali.kpme.tklm.time.util.TkContext;
  import org.kuali.rice.krad.exception.AuthorizationException;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  public abstract class CalendarApprovalFormAction extends ApprovalFormAction {
  	
  	@Override
  	protected void checkTKAuthorization(ActionForm form, String methodToCall) throws AuthorizationException {
  		if (!HrContext.isReviewer() && !HrContext.isAnyApprover() && !HrContext.isSystemAdmin() && !TkContext.isLocationAdmin() && !HrContext.isGlobalViewOnly() 
  				&& !TkContext.isDepartmentViewOnly() && !TkContext.isDepartmentAdmin() && !HrContext.isAnyPayrollProcessor()) {
  			throw new AuthorizationException(GlobalVariables.getUserSession().getPrincipalId(), "CalendarApprovalFormAction", "");
  		}
  	}
  	
  	protected void setSearchFields(CalendarApprovalForm calendarApprovalForm) {
  		super.setSearchFields(calendarApprovalForm);
  
  		if (calendarApprovalForm.getCalendarDocument() != null) {
  			calendarApprovalForm.setSelectedPayCalendarGroup(calendarApprovalForm.getCalendarDocument().getCalendarEntry().getCalendarName());
  			for (Assignment assignment : calendarApprovalForm.getCalendarDocument().getAssignments()) {
  				WorkArea workArea = HrServiceLocator.getWorkAreaService().getWorkAreaWithoutRoles(assignment.getWorkArea(), assignment.getEffectiveLocalDate());
  				if (calendarApprovalForm.getDepartments().contains(workArea.getDept())) {
  					calendarApprovalForm.setSelectedDept(workArea.getDept());
  					break;
  				}
  			}
  		}
  	}
  	
      protected void setCalendarFields(CalendarApprovalForm calendarApprovalForm) {
  		Set<String> calendarYears = new TreeSet<String>(Collections.reverseOrder());
  		List<CalendarEntry> calendarEntries = getCalendarEntries(calendarApprovalForm.getCalendarEntry());
  		
  	    for (CalendarEntry calendarEntry : calendarEntries) {
  	    	String calendarEntryYear = calendarEntry.getBeginPeriodFullDateTime().toString("yyyy");
  	    	calendarYears.add(calendarEntryYear);
  	    }
  	    
          String currentCalendarYear = calendarApprovalForm.getCalendarEntry().getBeginPeriodFullDateTime().toString("yyyy");
          String selectedCalendarYear = StringUtils.isNotBlank(calendarApprovalForm.getSelectedCalendarYear()) ? calendarApprovalForm.getSelectedCalendarYear() : currentCalendarYear;
  	    
          calendarApprovalForm.setCalendarYears(new ArrayList<String>(calendarYears));
          calendarApprovalForm.setPayPeriodsMap(ActionFormUtils.getPayPeriodsMap(ActionFormUtils.getAllCalendarEntriesForYear(calendarEntries, selectedCalendarYear), null));
  	    
          calendarApprovalForm.setSelectedCalendarYear(selectedCalendarYear);
          calendarApprovalForm.setSelectedPayPeriod(calendarApprovalForm.getCalendarEntry().getHrCalendarEntryId());
  	}
  
      protected List<CalendarEntry> getCalendarEntries(CalendarEntry currentCalendarEntry) {
  		return HrServiceLocator.getCalendarEntryService().getAllCalendarEntriesForCalendarId(currentCalendarEntry.getHrCalendarId());
  	}
  	
  //	protected List<String> getSubListPrincipalIds(HttpServletRequest request, List<String> assignmentPrincipalIds) {
  //	    String page = request.getParameter((new ParamEncoder(HrConstants.APPROVAL_TABLE_ID).encodeParameterName(TableTagParameters.PARAMETER_PAGE)));
  //	    // The paging index begins from 1, but the sublist index begins from 0.
  //	    // So the logic below sets the sublist begin index to 0 if the page number is null or equals 1
  //	    Integer beginIndex = StringUtils.isBlank(page) || StringUtils.equals(page, "1") ? 0 : (Integer.parseInt(page) - 1) * HrConstants.PAGE_SIZE;
  //	    Integer endIndex = beginIndex + HrConstants.PAGE_SIZE > assignmentPrincipalIds.size() ? assignmentPrincipalIds.size() : beginIndex + HrConstants.PAGE_SIZE;
  //	
  //	    return assignmentPrincipalIds.subList(beginIndex, endIndex);
  //	}
  
  	protected Boolean getAscending(HttpServletRequest request) {
  	    // returned value 1 = ascending; 2 = descending
  	    String ascending = request.getParameter((new ParamEncoder(HrConstants.APPROVAL_TABLE_ID).encodeParameterName(TableTagParameters.PARAMETER_ORDER)));
  	    return StringUtils.isEmpty(ascending) || StringUtils.equals(ascending, "1");
  	}
 
 	protected String getSortField(HttpServletRequest request) {
 	    return request.getParameter((new ParamEncoder(HrConstants.APPROVAL_TABLE_ID).encodeParameterName(TableTagParameters.PARAMETER_SORT)));
 	}
 
 }