/**
    * Copyright 2004-2013 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.hr.time.approval.web;
  
  import java.text.SimpleDateFormat;
  import java.util.*;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.commons.lang.time.DateUtils;
  import org.apache.log4j.Logger;
  import org.apache.struts.action.ActionForm;
  import org.apache.struts.action.ActionForward;
  import org.apache.struts.action.ActionMapping;
  import org.hsqldb.lib.StringUtil;
  import org.json.simple.JSONValue;
  import org.kuali.hr.time.base.web.TkAction;
  import org.kuali.hr.time.base.web.ApprovalForm;
  import org.kuali.hr.time.person.TKPerson;
  import org.kuali.hr.time.service.base.TkServiceLocator;
  import org.kuali.hr.time.timesheet.TimesheetDocument;
  import org.kuali.hr.time.timesummary.TimeSummary;
  import org.kuali.hr.time.util.TKContext;
  import org.kuali.hr.time.util.TKUtils;
  import org.kuali.hr.time.workflow.TimesheetDocumentHeader;
  
  public class TimeApprovalWSAction extends TkAction {
  
      private static final Logger LOG = Logger.getLogger(TimeApprovalWSAction.class);
  
      /**
       * Action called via AJAX. (ajaj really...)
       * <p/>
       * This search returns quick-results to the search box for the user to further
       * refine upon. The end value can then be form submitted.
       */
      public ActionForward searchApprovalRows(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
          TimeApprovalActionForm taaf = (TimeApprovalActionForm) form;
          List<Map<String, String>> results = new LinkedList<Map<String, String>>();
          if(StringUtils.isNotEmpty(taaf.getPayBeginDateForSearch()) 
          		&& StringUtils.isNotEmpty(taaf.getPayEndDateForSearch()) ) {
  	        Date beginDate = new SimpleDateFormat("MM/dd/yyyy").parse(taaf.getPayBeginDateForSearch());
  	        Date endDate = new SimpleDateFormat("MM/dd/yyyy").parse(taaf.getPayEndDateForSearch());
              //the endDate we get here is coming from approval.js and is extracted from html. we need to add a day to cover the last day in the pay period.
              endDate = DateUtils.addDays(endDate,1);
              List<String> workAreaList = new ArrayList<String>();
  	        if(StringUtil.isEmpty(taaf.getSelectedWorkArea())) {
                  Set<Long> workAreas = TkServiceLocator.getTkRoleService().getWorkAreasForApprover(TKContext.getTargetPrincipalId(), TKUtils.getCurrentDate());
  	        	for(Long workArea : workAreas) {    //taaf.getWorkAreaDescr().keySet()
  	        		workAreaList.add(workArea.toString());
  	        	}
  	        } else {
  	        	workAreaList.add(taaf.getSelectedWorkArea());
  	        }
  	        List<String> principalIds = TkServiceLocator.getTimeApproveService()
  				.getTimePrincipalIdsWithSearchCriteria(workAreaList, taaf.getSelectedPayCalendarGroup(),
  					new java.sql.Date(endDate.getTime()), new java.sql.Date(beginDate.getTime()), new java.sql.Date(endDate.getTime())); 
  	        
  	        List<TKPerson> persons = TkServiceLocator.getPersonService().getPersonCollection(principalIds);
  	        
  	        if (StringUtils.equals(taaf.getSearchField(), ApprovalForm.ORDER_BY_PRINCIPAL)) {
  	            for (String id : principalIds) {
  	                if(StringUtils.contains(id, taaf.getSearchTerm())) {
  	                    Map<String, String> labelValue = new HashMap<String, String>();
  	                    labelValue.put("id", id);
  	                    labelValue.put("result", id);
  	                    results.add(labelValue);
  	                }
  	            }
  	        } else if (StringUtils.equals(taaf.getSearchField(), ApprovalForm.ORDER_BY_DOCID)) {
  	            Map<String, TimesheetDocumentHeader> principalDocumentHeaders =
  	                    TkServiceLocator.getTimeApproveService().getPrincipalDocumehtHeader(persons, beginDate, endDate);
  
  	            for (Map.Entry<String,TimesheetDocumentHeader> entry : principalDocumentHeaders.entrySet()) {
  	                if (StringUtils.contains(entry.getValue().getDocumentId(), taaf.getSearchTerm())) {
  	                    Map<String, String> labelValue = new HashMap<String, String>();
  //                        labelValue.put("id", entry.getValue().getDocumentId() + " (" + entry.getValue().getPrincipalId() + ")");
                          labelValue.put("id", entry.getValue().getDocumentId());
  	                    labelValue.put("result", entry.getValue().getPrincipalId());
  	                    results.add(labelValue);
  	                }
  	            }
  	        }
          }
      
         taaf.setOutputString(JSONValue.toJSONString(results));
         return mapping.findForward("ws");
     }
     
     public ActionForward getTimeSummary(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
         TimeApprovalActionForm taaf = (TimeApprovalActionForm) form;
         TimesheetDocument td = TkServiceLocator.getTimesheetService().getTimesheetDocument(taaf.getDocumentId());
 		TimeSummary ts = TkServiceLocator.getTimeSummaryService().getTimeSummary(td);
 		
         taaf.setOutputString(ts.toJsonString());
         return mapping.findForward("ws");
     }
         
 }