/*
    * Copyright 2008-2009 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.module.purap.document.validation.impl;
  
  import org.kuali.ole.module.purap.businessobject.PurApAccountingLine;
  import org.kuali.ole.module.purap.document.PurchasingAccountsPayableDocument;
  import org.kuali.ole.module.purap.document.service.PurapService;
  import org.kuali.ole.sys.context.SpringContext;
  import org.kuali.ole.sys.document.validation.event.AttributedDocumentEvent;
  import org.kuali.ole.sys.service.FinancialSystemWorkflowHelperService;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  /**
   * A validation that checks whether the given accounting line is accessible to the given user or not
   */
  public class PurchaseOrderAmendmentAccountingLineAccessibleValidation extends PurchasingAccountsPayableAccountingLineAccessibleValidation {
  
      protected PurapService purapService;
  
      /**
       * Validates that the given accounting line is accessible for editing by the current user.
       * <strong>This method expects a document as the first parameter and an accounting line as the second</strong>
       *
       * @see org.kuali.ole.sys.document.validation.Validation#validate(java.lang.Object[])
       */
      @Override
      public boolean validate(AttributedDocumentEvent event) {
  
          if (purapService.isDocumentStoppedInRouteNode((PurchasingAccountsPayableDocument) event.getDocument(), "New Unordered Items")) {
              //DO NOTHING: do not check that user owns acct lines; at this level, they can edit all accounts on PO amendment
              return true;
  
          } else if (SpringContext.getBean(FinancialSystemWorkflowHelperService.class).isAdhocApprovalRequestedForPrincipal(event.getDocument().getDocumentHeader().getWorkflowDocument(), GlobalVariables.getUserSession().getPrincipalId())) {
              return true;
          } else {
              boolean result = false;
              boolean setDummyAccountIdentifier = false;
  
              if (needsDummyAccountIdentifier()) {
                  ((PurApAccountingLine) getAccountingLineForValidation()).setAccountIdentifier(Integer.MAX_VALUE);  // avoid conflicts with any accouting identifier on any other accounting lines in the doc because, you know, you never know...
                  setDummyAccountIdentifier = true;
              }
  
              result = super.validate(event);
  
              if (setDummyAccountIdentifier) {
                  ((PurApAccountingLine) getAccountingLineForValidation()).setAccountIdentifier(null);
              }
  
              return result;
          }
      }
  
      public void setPurapService(PurapService purapService) {
          this.purapService = purapService;
      }
  
  }