/*
    * Copyright 2010 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.module.purap.document.validation.impl;
  
  import org.apache.commons.lang.StringUtils;
  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.document.PurchasingAccountsPayableDocumentBase;
  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.util.List;
  
  public class RequisitionAssignToTradeInValidation extends GenericValidation {
      private DataDictionaryService dataDictionaryService;
  
      public boolean validate(AttributedDocumentEvent event) {
  
          // Initialize the valid and true, and get the requisition document.
          boolean foundTradeIn = false;
          boolean valid = true;
  
          PurchasingAccountsPayableDocumentBase purapDoc =
                  (PurchasingAccountsPayableDocumentBase) event.getDocument();
  
          // First, get all the items from the requisition document.  For each of
          // the items, look for the ones that are assigned to a trade-in value.
          // For these trade-in items, validate that the trade-in line has a valid
          // description and amount.
          List<PurApItem> items = (List<PurApItem>) purapDoc.getItems();
          for (PurApItem item : items) {
              item.refreshReferenceObject(PurapPropertyConstants.ITEM_TYPE);
              if (item.getItemAssignedToTradeInIndicator()) {
                  foundTradeIn = true;
                  break;
              }
          }
  
          // Was a trade-in found for any of the above items?
          if (foundTradeIn) {
  
              // Get the trade-in item.
              PurApItem tradeInItem = purapDoc.getTradeInItem();
              if (tradeInItem != null) {
                  if (StringUtils.isEmpty(tradeInItem.getItemDescription())) {
  
                      String attributeLabel = dataDictionaryService.getDataDictionary().getBusinessObjectEntry(tradeInItem.getClass().getName()).getAttributeDefinition(PurapPropertyConstants.ITEM_DESCRIPTION).getLabel();
                      tradeInItem.getItemLineNumber();
                      GlobalVariables.getMessageMap().putError(
                              "document.item[" + (items.size() - 1) + "]." + PurapPropertyConstants.ITEM_DESCRIPTION,
                              PurapKeyConstants.ERROR_ITEM_BELOW_THE_LINE,
                              "The item description of " + tradeInItem.getItemType().getItemTypeDescription(),
                              "empty");
  
                      valid = false;
                  } else if (ObjectUtils.isNull(tradeInItem.getItemUnitPrice())) {
  
                      String attributeLabel = dataDictionaryService.getDataDictionary().getBusinessObjectEntry(tradeInItem.getClass().getName()).getAttributeDefinition(PurapPropertyConstants.ITEM_UNIT_PRICE).getLabel();
                      GlobalVariables.getMessageMap().putError(
                              "document.item[" + (items.size() - 1) + "]." + PurapPropertyConstants.ITEM_UNIT_PRICE,
                              PurapKeyConstants.ERROR_ITEM_BELOW_THE_LINE,
                              tradeInItem.getItemType().getItemTypeDescription(),
                              "zero");
  
                      valid = false;
                  }
              }
          }
  
          return valid;
      }
  
      /**
       * Sets the dataDictionaryService attribute value.
       *
       * @param dataDictionaryService The dataDictionaryService to set.
       */
      public void setDataDictionaryService(DataDictionaryService dataDictionaryService) {
          this.dataDictionaryService = dataDictionaryService;
      }
  
  }