/*
    * Copyright 2013 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 org.kuali.ole.select.document.validation.impl;
  
  import org.kuali.ole.module.purap.PurapConstants;
  import org.kuali.ole.module.purap.PurapKeyConstants;
  import org.kuali.ole.module.purap.businessobject.PurApAccountingLine;
  import org.kuali.ole.module.purap.businessobject.PurApItem;
  import org.kuali.ole.select.businessobject.OleCreditMemoItem;
  import org.kuali.ole.select.document.OleVendorCreditMemoDocument;
  import org.kuali.ole.sys.document.validation.GenericValidation;
  import org.kuali.ole.sys.document.validation.event.AttributedDocumentEvent;
  import org.kuali.rice.core.api.util.type.KualiDecimal;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  import java.math.BigDecimal;
  
  public class OleVendorCreditMemoAccountTotalValidation extends GenericValidation {
  
      private PurApItem itemForValidation;
  
      /**
       * Verifies account percent. If the total percent does not equal 100, the validation fails.
       */
      @Override
      public boolean validate(AttributedDocumentEvent event) {
          boolean valid = true;
  
          // validate that the amount total
          OleVendorCreditMemoDocument cmDocument = (OleVendorCreditMemoDocument) event.getDocument();
          BigDecimal totalAmount = BigDecimal.ZERO;
          BigDecimal desiredAmount = (itemForValidation.getTotalAmount() == null) ? new BigDecimal(0) : itemForValidation
                  .getTotalAmount().bigDecimalValue();
  
          KualiDecimal prorateSurcharge = KualiDecimal.ZERO;
  
          OleCreditMemoItem crdtItem = (OleCreditMemoItem) itemForValidation;
          if (crdtItem.getItemType().isQuantityBasedGeneralLedgerIndicator() && crdtItem.getExtendedPrice() != null
                  && crdtItem.getExtendedPrice().compareTo(KualiDecimal.ZERO) != 0) {
              if (crdtItem.getItemSurcharge() != null
                      && (crdtItem.getItemTypeCode().equals("ITEM") || crdtItem.getItemTypeCode()
                      .equalsIgnoreCase("UNOR"))) {
                  prorateSurcharge = new KualiDecimal(crdtItem.getItemSurcharge()).multiply(crdtItem.getItemQuantity());
              }
              if (prorateSurcharge.isNegative()) {
                  prorateSurcharge = prorateSurcharge.negated();
                  desiredAmount = desiredAmount.add(new BigDecimal(prorateSurcharge.toString()));
              } else {
                  desiredAmount = desiredAmount.subtract(new BigDecimal(prorateSurcharge.toString()));
              }
  
          }
          for (PurApAccountingLine account : itemForValidation.getSourceAccountingLines()) {
              if (account.getAmount() != null) {
                  totalAmount = totalAmount.add(account.getAmount().bigDecimalValue());
              } else {
                  totalAmount = totalAmount.add(BigDecimal.ZERO);
              }
          }
          if (desiredAmount.compareTo(totalAmount) != 0 && cmDocument.getInvoiceIdentifier() == null) {
              GlobalVariables.getMessageMap().putError(PurapConstants.ITEM_TAB_ERROR_PROPERTY,
                      PurapKeyConstants.ERROR_ITEM_ACCOUNTING_TOTAL_AMOUNT, itemForValidation.getItemIdentifierString(),
                      desiredAmount.toString());
              valid = false;
          }
  
  
          return valid;
      }
  
  
      public PurApItem getItemForValidation() {
          return itemForValidation;
      }
  
  
      public void setItemForValidation(PurApItem itemForValidation) {
          this.itemForValidation = itemForValidation;
      }
  
  }