/*
    * 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.PurapConstants;
  import org.kuali.ole.module.purap.PurapKeyConstants;
  import org.kuali.ole.module.purap.PurapPropertyConstants;
  import org.kuali.ole.module.purap.businessobject.PurApItem;
  import org.kuali.ole.module.purap.businessobject.PurchaseOrderItem;
  import org.kuali.ole.module.purap.businessobject.PurchasingItemBase;
  import org.kuali.ole.module.purap.document.PurchaseOrderAmendmentDocument;
  import org.kuali.ole.module.purap.document.service.PurchaseOrderService;
  import org.kuali.ole.sys.document.validation.event.AttributedDocumentEvent;
  import org.kuali.rice.core.api.util.type.KualiDecimal;
  import org.kuali.rice.kew.api.WorkflowDocument;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  public class PurchaseOrderAmendmentNewIndividualItemValidation extends PurchaseOrderNewIndividualItemValidation {
  
      private PurchaseOrderService purchaseOrderService;
  
      /**
       * Overrides the method in PurchaseOrderNewIndividualItemValidation to add additional validations that are specific to Amendment.
       *
       * @see org.kuali.ole.module.purap.document.validation.impl.PurchaseOrderDocumentRule#newIndividualItemValidation(org.kuali.ole.module.purap.document.PurchasingAccountsPayableDocument, java.lang.String, org.kuali.ole.module.purap.businessobject.PurApItem)
       */
      @Override
      public boolean validate(AttributedDocumentEvent event) {
          boolean valid = super.validate(event);
          PurchaseOrderItem item = (PurchaseOrderItem) getItemForValidation();
          String identifierString = item.getItemIdentifierString();
          if ((item.getItemInvoicedTotalQuantity() != null) && (!(item.getItemInvoicedTotalQuantity()).isZero())) {
              if (item.getItemQuantity() == null) {
                  valid = false;
                  GlobalVariables.getMessageMap().putError(PurapConstants.ITEM_TAB_ERROR_PROPERTY, PurapKeyConstants.ERROR_ITEM_AMND_NULL, "Item Quantity", identifierString);
              } else if (item.getItemQuantity().compareTo(item.getItemInvoicedTotalQuantity()) < 0) {
                  valid = false;
                  GlobalVariables.getMessageMap().putError(PurapConstants.ITEM_TAB_ERROR_PROPERTY, PurapKeyConstants.ERROR_ITEM_AMND_INVALID, "Item Quantity", identifierString);
              }
          }
  
          if (item.getItemInvoicedTotalAmount() != null) {
              KualiDecimal total = item.getTotalAmount().abs();
              if ((total == null) || total.compareTo(item.getItemInvoicedTotalAmount().abs()) < 0) {
                  valid = false;
                  GlobalVariables.getMessageMap().putError(PurapConstants.ITEM_TAB_ERROR_PROPERTY, PurapKeyConstants.ERROR_ITEM_AMND_INVALID_AMT, "Item Extended Price", identifierString);
              }
          }
  
          PurchaseOrderAmendmentDocument document = (PurchaseOrderAmendmentDocument) event.getDocument();
          WorkflowDocument workflowDocument = document.getDocumentHeader().getWorkflowDocument();
  
          // run additional accounting line check for items added to POA via receiving line, only after document in enroute
          if (!(workflowDocument.isInitiated() || workflowDocument.isSaved()) && purchaseOrderService.isNewUnorderedItem(item)) {
  
              // check to see if the account lines are empty
              if (item.getSourceAccountingLines() == null || item.getSourceAccountingLines().size() == 0) {
                  valid = false;
                  GlobalVariables.getMessageMap().putError(PurapConstants.ITEM_TAB_ERROR_PROPERTY, PurapKeyConstants.ERROR_ITEM_ACCOUNTING_INCOMPLETE, identifierString, identifierString);
              }
          }
  
          return valid;
      }
  
      /**
       * Overrides to provide validation for PurchaseOrderAmendmentDocument.
       *
       * @see org.kuali.ole.module.purap.document.validation.impl.PurchasingDocumentRuleBase#validateCommodityCodes(org.kuali.ole.module.purap.businessobject.PurApItem, boolean)
       */
      @Override
      protected boolean validateCommodityCodes(PurApItem item, boolean commodityCodeRequired) {
          //If the item is inactive then don't need any of the following validations.
          if (!((PurchaseOrderItem) item).isItemActiveIndicator()) {
              return true;
          } else {
              return super.validateCommodityCodes(item, commodityCodeRequired);
          }
      }
  
      /**
       * Overrides the method in PurchasingDocumentRuleBase so that we'll return true
       * if the item has been previously saved to the database and we'll only check for
       * the commodity code active flag if the item has not been previously saved to
       * the database.
       *
      * @param item
      * @param commodityCodeRequired
      * @return
      */
     protected boolean validateThatCommodityCodeIsActive(PurApItem item) {
         if (item.getVersionNumber() != null) {
             return true;
         } else {
             if (!((PurchasingItemBase) item).getCommodityCode().isActive()) {
                 GlobalVariables.getMessageMap().putError(PurapPropertyConstants.ITEM_COMMODITY_CODE, PurapKeyConstants.PUR_COMMODITY_CODE_INACTIVE, " in " + item.getItemIdentifierString());
                 return false;
             }
             return true;
         }
     }
 
     public PurchaseOrderService getPurchaseOrderService() {
         return purchaseOrderService;
     }
 
     public void setPurchaseOrderService(PurchaseOrderService purchaseOrderService) {
         this.purchaseOrderService = purchaseOrderService;
     }
 }