/*
    * 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 edu.sampleu.travel.service;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import org.kuali.rice.kns.service.BusinessObjectService;
  import org.kuali.rice.kns.service.KNSServiceLocator;
  import org.kuali.rice.kns.service.KNSServiceLocatorWeb;
  import org.kuali.rice.kns.service.LookupService;
  import org.springframework.beans.BeanUtils;
  
  import edu.sampleu.travel.bo.FiscalOfficer;
  import edu.sampleu.travel.bo.TravelAccount;
  import edu.sampleu.travel.dto.FiscalOfficerInfo;
  import edu.sampleu.travel.dto.TravelAccountInfo;
  
  /**
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class FiscalOfficerServiceImpl implements FiscalOfficerService {
  
      protected static String[] FOI_SKIP = { "accounts" };
      
      protected BusinessObjectService businessObjectService;
      protected LookupService lookupService;
      
      @Override
      public FiscalOfficerInfo createFiscalOfficer(FiscalOfficerInfo fiscalOfficerInfo) {
          getBusinessObjectService().save(toFiscalOfficer(fiscalOfficerInfo));
          
          Map<String, Object> criteria = new HashMap<String, Object>();
          criteria.put("id", fiscalOfficerInfo.getId());
          FiscalOfficer fiscalOfficer = getBusinessObjectService().findByPrimaryKey(FiscalOfficer.class, criteria);
          return toFiscalOfficerInfo(fiscalOfficer);
      }
  
      @Override
      public List<FiscalOfficerInfo> lookupFiscalOfficer(Map<String, String> criteria) {
          @SuppressWarnings("unchecked")
          Collection<FiscalOfficer> temp = getLookupService().findCollectionBySearch(FiscalOfficer.class, criteria);
          
          List<FiscalOfficerInfo> results = new ArrayList<FiscalOfficerInfo>();
          if(temp != null) {
              for(FiscalOfficer fiscalOfficer : temp) {
                  results.add(toFiscalOfficerInfo(fiscalOfficer));
              }
          }
          
          return results;
      }
  
      @Override
      public FiscalOfficerInfo retrieveFiscalOfficer(Long id) {
          FiscalOfficer temp = getBusinessObjectService().findBySinglePrimaryKey(FiscalOfficer.class, id);
          FiscalOfficerInfo result = toFiscalOfficerInfo(temp);
          return result;
      }
  
      @Override
      public FiscalOfficerInfo updateFiscalOfficer(FiscalOfficerInfo fiscalOfficerInfo) {
          FiscalOfficer fiscalOfficer = getBusinessObjectService().findBySinglePrimaryKey(FiscalOfficer.class, fiscalOfficerInfo.getId());
          
          if(fiscalOfficer != null) {
              getBusinessObjectService().save(toFiscalOfficerUpdate(fiscalOfficerInfo, fiscalOfficer));
              fiscalOfficer = getBusinessObjectService().findBySinglePrimaryKey(FiscalOfficer.class, fiscalOfficerInfo.getId());
          }
          
          return toFiscalOfficerInfo(fiscalOfficer);
      }
      
      /**
       * This method only copies fields from the dto to the ojb bean that should be copied
       * on an update call.
       * 
       * @param fiscalOfficerInfo dto to convert to ojb bean
       * @param fiscalOfficer target ojb bean to update from info
       * @return
       */
      protected FiscalOfficer toFiscalOfficerUpdate(FiscalOfficerInfo fiscalOfficerInfo,
             FiscalOfficer fiscalOfficer) {
         
         BeanUtils.copyProperties(fiscalOfficerInfo, fiscalOfficer, FOI_SKIP);
         
         List<TravelAccountInfo> newAccounts = new ArrayList<TravelAccountInfo>();
         Map<String, TravelAccountInfo> accountInfoMap = new HashMap<String, TravelAccountInfo>();
         
         // create a map of accounts that are being edited and list of accounts to be added
         for(TravelAccountInfo accountInfo : fiscalOfficerInfo.getAccounts()) {
             if(accountInfo.getVersionNumber() == null) {
                 newAccounts.add(accountInfo);
             }
             else {
                 accountInfoMap.put(accountInfo.getNumber(), accountInfo);
             }
         }
         
         // iterator the accounts from the db, updating or removing if necessary
         Iterator<TravelAccount> iterator = fiscalOfficer.getAccounts().iterator();
         while(iterator.hasNext()) {
             TravelAccount account = iterator.next();
             TravelAccountInfo accountInfo = accountInfoMap.get(account.getNumber());
             
             if(accountInfo == null) {
                 // this really isnt the best example data set, so just orphan
                 // instead of actually deleting
                 //iterator.remove();
                 
                 account.setFoId(null);
                 account.setFiscalOfficer(null);
             }
             else {
                 BeanUtils.copyProperties(accountInfo, account);
             }
         }
         
         // add the new accounts to the list
         for(TravelAccountInfo accountInfo : newAccounts) {
             fiscalOfficer.getAccounts().add(toTravelAccount(accountInfo));
         }
         
         return fiscalOfficer;
     }
     
     protected FiscalOfficer toFiscalOfficer(FiscalOfficerInfo fiscalOfficerInfo) {
         FiscalOfficer fiscalOfficer = new FiscalOfficer();
         
         BeanUtils.copyProperties(fiscalOfficerInfo, fiscalOfficer, FOI_SKIP);
         
         if(fiscalOfficerInfo.getAccounts() != null) {
             for(TravelAccountInfo accountInfo : fiscalOfficerInfo.getAccounts()) {
                 fiscalOfficer.getAccounts().add(toTravelAccount(accountInfo));
             }
         }
        
         return fiscalOfficer;
     }
     
     protected FiscalOfficerInfo toFiscalOfficerInfo(FiscalOfficer fiscalOfficer) {
         FiscalOfficerInfo fiscalOfficerInfo = null;
         
         if(fiscalOfficer != null) {
             fiscalOfficerInfo = new FiscalOfficerInfo();
             
             BeanUtils.copyProperties(fiscalOfficer, fiscalOfficerInfo, FOI_SKIP);
             
             if(fiscalOfficer.getAccounts() != null) {
                 List<TravelAccountInfo> accountInfoList = new ArrayList<TravelAccountInfo>();
                 
                 for(TravelAccount travelAccount : fiscalOfficer.getAccounts()) {
                     accountInfoList.add(toTravelAccountInfo(travelAccount));
                 }
                 
                 fiscalOfficerInfo.setAccounts(accountInfoList);
             }
         }
         
         return fiscalOfficerInfo;
     }
     
     protected TravelAccountInfo toTravelAccountInfo(TravelAccount travelAccount) {
         TravelAccountInfo travelAccountInfo = new TravelAccountInfo();
         
         BeanUtils.copyProperties(travelAccount, travelAccountInfo);
         
         return travelAccountInfo;
     }
     
     protected TravelAccount toTravelAccount(TravelAccountInfo travelAccountInfo) {
         TravelAccount travelAccount = new TravelAccount();
         
         BeanUtils.copyProperties(travelAccountInfo, travelAccount);
         
         return travelAccount;
     }
 
     protected BusinessObjectService getBusinessObjectService() {
         if(businessObjectService == null) {
             businessObjectService = KNSServiceLocator.getBusinessObjectService();
         }
         return this.businessObjectService;
     }
 
     public void setBusinessObjectService(BusinessObjectService businessObjectService) {
         this.businessObjectService = businessObjectService;
     }
 
     protected LookupService getLookupService() {
         if(lookupService == null) {
             lookupService = KNSServiceLocatorWeb.getLookupService();
         }
         return this.lookupService;
     }
 
     public void setLookupService(LookupService lookupService) {
         this.lookupService = lookupService;
     }
 
 }