/**
    * 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.lm.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.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.lm.workflow.LeaveCalendarDocumentHeader;
  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.util.TKContext;
  import org.kuali.hr.time.util.TKUtils;
  
  public class LeaveApprovalWSAction extends TkAction {
  
  	 public ActionForward getLeaveSummary(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
      	LeaveApprovalWSActionForm laaf = (LeaveApprovalWSActionForm) form;
      	String docId = laaf.getDocumentId();
      	LeaveCalendarDocumentHeader lcdh = TkServiceLocator.getLeaveCalendarDocumentHeaderService().getDocumentHeader(docId);
      	if(lcdh != null) {
      		List<Map<String, Object>> detailMap = TkServiceLocator.getLeaveApprovalService().getLeaveApprovalDetailSections(lcdh);
      		
      		String jsonString = JSONValue.toJSONString(detailMap);
      		laaf.setOutputString(jsonString);
      	}
      	
      	return mapping.findForward("ws");
  	 }
  	 
  	  public ActionForward searchApprovalRows(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
  		  LeaveApprovalWSActionForm laaf = (LeaveApprovalWSActionForm) form;
  	        List<Map<String, String>> results = new LinkedList<Map<String, String>>();
  	        if(StringUtils.isNotEmpty(laaf.getPayBeginDateForSearch()) 
  	        		&& StringUtils.isNotEmpty(laaf.getPayEndDateForSearch()) ) {
  		        Date beginDate = new SimpleDateFormat("MM/dd/yyyy").parse(laaf.getPayBeginDateForSearch());
  		        Date endDate = new SimpleDateFormat("MM/dd/yyyy").parse(laaf.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(laaf.getSelectedWorkArea())) {
                      Set<Long> workAreas = TkServiceLocator.getTkRoleService().getWorkAreasForApprover(TKContext.getPrincipalId(), TKUtils.getCurrentDate());
  		        	for(Long workArea : workAreas) {                             //laaf.getWorkAreaDescr().keySet()
  		        		workAreaList.add(workArea.toString());
  		        	}
  		        } else {
  		        	workAreaList.add(laaf.getSelectedWorkArea());
  		        } 
  		        List<String> principalIds = TkServiceLocator.getLeaveApprovalService()
          			.getLeavePrincipalIdsWithSearchCriteria(workAreaList, laaf.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(laaf.getSearchField(), ApprovalForm.ORDER_BY_PRINCIPAL)) {
  		            for (String id : principalIds) {
  		                if(StringUtils.contains(id, laaf.getSearchTerm())) {
  		                    Map<String, String> labelValue = new HashMap<String, String>();
  		                    labelValue.put("id", id);
  		                    labelValue.put("result", id);
  		                    results.add(labelValue);
  		                }
  		            }
  		        } else if (StringUtils.equals(laaf.getSearchField(), ApprovalForm.ORDER_BY_DOCID)) {
  		            Map<String, LeaveCalendarDocumentHeader> principalDocumentHeaders =
  		                    TkServiceLocator.getLeaveApprovalService().getPrincipalDocumehtHeader(persons, beginDate, endDate);
  	
  		            for (Map.Entry<String,LeaveCalendarDocumentHeader> entry : principalDocumentHeaders.entrySet()) {
  		                if (StringUtils.contains(entry.getValue().getDocumentId(), laaf.getSearchTerm())) {
  		                    Map<String, String> labelValue = new HashMap<String, String>();
  //                            labelValue.put("id", entry.getValue().getDocumentId() + " (" + entry.getValue().getPrincipalId() + ")");
                              //removing principalId to make select/submit the result from dropdown work
                              labelValue.put("id", entry.getValue().getDocumentId());
  		                    labelValue.put("result", entry.getValue().getPrincipalId());
  		                    results.add(labelValue);
 		                }
 		            }
 		        }
 	        }
 		
 	      laaf.setOutputString(JSONValue.toJSONString(results));
 	        
 	      return mapping.findForward("ws");
 	    }
 }