/*
    * Copyright 2008 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.ole.sys.document;
  
  import java.util.Iterator;
  import java.util.Map;
  
  import org.apache.log4j.Logger;
  import org.kuali.ole.coa.businessobject.Account;
  import org.kuali.ole.coa.service.AccountPersistenceStructureService;
  import org.kuali.ole.coa.service.AccountService;
  import org.kuali.ole.sys.OLEPropertyConstants;
  import org.kuali.ole.sys.context.SpringContext;
  import org.kuali.rice.kns.document.MaintenanceDocument;
  import org.kuali.rice.kns.maintenance.KualiGlobalMaintainableImpl;
  import org.kuali.rice.krad.bo.BusinessObject;
  import org.kuali.rice.krad.bo.PersistableBusinessObject;
  import org.kuali.rice.krad.util.ObjectUtils;
  
  /**
   * This class...
   */
  public abstract class FinancialSystemGlobalMaintainable extends KualiGlobalMaintainableImpl {
      private static final Logger LOG = Logger.getLogger(FinancialSystemGlobalMaintainable.class);
  
      protected boolean answerSplitNodeQuestion(String nodeName) throws UnsupportedOperationException {
          throw new UnsupportedOperationException("FinancialSystemGlobalMaintainable does not implement the answerSplitNodeQuestion method. Node name specified was: " + nodeName); 
      }
  
      /**
       * @see org.kuali.rice.kns.maintenance.KualiMaintainableImpl#refreshReferences(String)
       */
      @Override
      protected void refreshReferences(String referencesToRefresh) {
          // if accounts can't cross charts, populate chart code fields according to corresponding account number fields
          if (!SpringContext.getBean(AccountService.class).accountsCanCrossCharts()) {
              populateChartOfAccountsCodeFields();            
          }
          
          super.refreshReferences(referencesToRefresh);
      }
      
      /**
       * @see org.kuali.rice.kns.maintenance.KualiMaintainableImpl#processAfterAddLine(String)
       */
      @Override
      public void processBeforeAddLine(String colName, Class colClass, BusinessObject bo) {
          super.processBeforeAddLine(colName, colClass, bo);
  
          // if accounts can't cross charts, populate chart code fields according to corresponding account number fields
          if (!SpringContext.getBean(AccountService.class).accountsCanCrossCharts()) {
              populateChartOfAccountsCodeFields();            
          }
      }
  
      /**
       * @see org.kuali.rice.kns.maintenance.KualiMaintainableImpl#processAfterPost(String)
       */
      @Override
      public void processAfterPost(MaintenanceDocument document, Map<String, String[]> parameters) {
          super.processAfterPost(document, parameters);
  
          // if accounts can't cross charts, populate chart code fields according to corresponding account number fields
          if (!SpringContext.getBean(AccountService.class).accountsCanCrossCharts()) {
              populateChartOfAccountsCodeFields();            
          }
      }
      
      /**
       * Populates all chartOfAccountsCode fields according to corresponding accountNumber fields in this BO.  
       * The chartOfAccountsCode-accountNumber pairs are (part of) the FKs for the reference accounts in this BO.    
       */
      protected void populateChartOfAccountsCodeFields() {
          AccountService acctService = SpringContext.getBean(AccountService.class);
          AccountPersistenceStructureService apsService = SpringContext.getBean(AccountPersistenceStructureService.class);
   
          // non-collection reference accounts 
          PersistableBusinessObject bo = getBusinessObject();        
          Iterator<Map.Entry<String, String>> chartAccountPairs = apsService.listChartCodeAccountNumberPairs(bo).entrySet().iterator();        
          while (chartAccountPairs.hasNext()) {
              Map.Entry<String, String> entry = (Map.Entry<String, String>)chartAccountPairs.next();
              String coaCodeName = entry.getKey();            
              String acctNumName = entry.getValue(); 
              String accountNumber = (String)ObjectUtils.getPropertyValue(bo, acctNumName);
              String coaCode = null;
              Account account = acctService.getUniqueAccountForAccountNumber(accountNumber);            
             if (ObjectUtils.isNotNull(account)) {
                 coaCode = account.getChartOfAccountsCode();
             }
             try {
                 ObjectUtils.setObjectProperty(bo, coaCodeName, coaCode); 
             }
             catch (Exception e) {
                 LOG.error("Error in setting property value for " + coaCodeName, e);
             }
         }
         
         // collection reference accounts         
         Iterator<Map.Entry<String, Class>> accountColls = apsService.listCollectionAccountFields(bo).entrySet().iterator();        
         while (accountColls.hasNext()) {
             Map.Entry<String, Class> entry = (Map.Entry<String, Class>)accountColls.next();
             String accountCollName = entry.getKey();
             PersistableBusinessObject newAccount = getNewCollectionLine(accountCollName);
             
             // here we can use hard-coded chartOfAccountsCode and accountNumber field name 
             // since all reference account types do follow the standard naming pattern        
             String accountNumber = (String)ObjectUtils.getPropertyValue(newAccount, OLEPropertyConstants.ACCOUNT_NUMBER);            
             String coaCode = null;
             Account account = acctService.getUniqueAccountForAccountNumber(accountNumber);            
             if (ObjectUtils.isNotNull(account)) {
                 coaCode = account.getChartOfAccountsCode();
                 try {
                     ObjectUtils.setObjectProperty(newAccount, OLEPropertyConstants.CHART_OF_ACCOUNTS_CODE, coaCode); 
                 }
                 catch (Exception e) {
                     LOG.error("Error in setting chartOfAccountsCode property value in account collection " + accountCollName, e);
                 }
             }
         }
     }
     
 }