/*
    * Copyright 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.ItemFields;
  import org.kuali.ole.module.purap.PurapConstants.ItemTypeCodes;
  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.sys.OLEKeyConstants;
  import org.kuali.ole.sys.document.validation.GenericValidation;
  import org.kuali.ole.sys.document.validation.event.AttributedDocumentEvent;
  import org.kuali.rice.kns.service.DataDictionaryService;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.ObjectUtils;
  
  import java.math.BigDecimal;
  
  public class PurchasingItemUnitPriceValidation extends GenericValidation {
  
      private PurApItem itemForValidation;
      private DataDictionaryService dataDictionaryService;
  
      /**
       * Validates the unit price for all applicable item types. It validates that the unit price field was
       * entered on the item, and that the price is in the right range for the item type.
       */
      public boolean validate(AttributedDocumentEvent event) {
          boolean valid = true;
          if (itemForValidation.getItemType().isLineItemIndicator()) {
              if (ObjectUtils.isNull(itemForValidation.getItemUnitPrice())) {
                  valid = false;
                  String attributeLabel = dataDictionaryService.getDataDictionary().getBusinessObjectEntry(itemForValidation.getClass().getName()).
                          getAttributeDefinition(PurapPropertyConstants.ITEM_UNIT_PRICE).getLabel();
                  GlobalVariables.getMessageMap().putError(PurapPropertyConstants.ITEM_UNIT_PRICE, OLEKeyConstants.ERROR_REQUIRED, attributeLabel + " in " + itemForValidation.getItemIdentifierString());
              }
          }
  
          if (ObjectUtils.isNotNull(itemForValidation.getItemUnitPrice())) {
              if ((BigDecimal.ZERO.compareTo(itemForValidation.getItemUnitPrice()) > 0) && ((!itemForValidation.getItemTypeCode().equals(ItemTypeCodes.ITEM_TYPE_ORDER_DISCOUNT_CODE)) && (!itemForValidation.getItemTypeCode().equals(ItemTypeCodes.ITEM_TYPE_TRADE_IN_CODE)))) {
                  // If the item type is not full order discount or trade in items, don't allow negative unit price.
                  GlobalVariables.getMessageMap().putError(PurapPropertyConstants.ITEM_UNIT_PRICE, PurapKeyConstants.ERROR_ITEM_AMOUNT_BELOW_ZERO, ItemFields.UNIT_COST, itemForValidation.getItemIdentifierString());
                  valid = false;
              } else if ((BigDecimal.ZERO.compareTo(itemForValidation.getItemUnitPrice()) < 0) && ((itemForValidation.getItemTypeCode().equals(ItemTypeCodes.ITEM_TYPE_ORDER_DISCOUNT_CODE)) || (itemForValidation.getItemTypeCode().equals(ItemTypeCodes.ITEM_TYPE_TRADE_IN_CODE)))) {
                  // If the item type is full order discount or trade in items, its unit price must be negative.
                  GlobalVariables.getMessageMap().putError(PurapPropertyConstants.ITEM_UNIT_PRICE, PurapKeyConstants.ERROR_ITEM_AMOUNT_NOT_BELOW_ZERO, ItemFields.UNIT_COST, itemForValidation.getItemIdentifierString());
                  valid = false;
              }
          }
  
          return valid;
      }
  
      public PurApItem getItemForValidation() {
          return itemForValidation;
      }
  
      public void setItemForValidation(PurApItem itemForValidation) {
          this.itemForValidation = itemForValidation;
      }
  
      public DataDictionaryService getDataDictionaryService() {
          return dataDictionaryService;
      }
  
      public void setDataDictionaryService(DataDictionaryService dataDictionaryService) {
          this.dataDictionaryService = dataDictionaryService;
      }
  
  }