/*
    * 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.apache.commons.lang.StringUtils;
  import org.kuali.ole.module.purap.PurapKeyConstants;
  import org.kuali.ole.module.purap.PurapPropertyConstants;
  import org.kuali.ole.module.purap.document.VendorCreditMemoDocument;
  import org.kuali.ole.module.purap.document.service.PaymentRequestService;
  import org.kuali.ole.select.document.OleVendorCreditMemoDocument;
  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.bo.BusinessObject;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.ObjectUtils;
  
  public class VendorCreditMemoInitTabRequiredFieldsValidation extends GenericValidation {
  
      private DataDictionaryService dataDictionaryService;
      private PaymentRequestService paymentRequestService;
  
      /**
       * Validates the necessary fields on the init tab were given and credit memo date is valid. (NOTE: formats for cm date and
       * number already performed by pojo conversion)
       */
      public boolean validate(AttributedDocumentEvent event) {
          OleVendorCreditMemoDocument cmDocument = (OleVendorCreditMemoDocument) event.getDocument();
  
          boolean valid = true;
          if(cmDocument.getInvoiceIdentifier() == null || cmDocument.getInvoiceIdentifier().compareTo(new Integer(0)) == 0) {
              valid = validateRequiredField(cmDocument, PurapPropertyConstants.CREDIT_MEMO_NUMBER);
          }
  
  
          valid = valid && validateRequiredField(cmDocument, PurapPropertyConstants.CREDIT_MEMO_AMOUNT);
          boolean creditMemoDateExist = validateRequiredField(cmDocument, PurapPropertyConstants.CREDIT_MEMO_DATE);
  
          if (creditMemoDateExist) {
              if (paymentRequestService.isInvoiceDateAfterToday(cmDocument.getCreditMemoDate())) {
                  String label = dataDictionaryService.getAttributeErrorLabel(VendorCreditMemoDocument.class, PurapPropertyConstants.CREDIT_MEMO_DATE);
                  GlobalVariables.getMessageMap().putError(PurapPropertyConstants.CREDIT_MEMO_DATE, PurapKeyConstants.ERROR_INVALID_INVOICE_DATE, label);
                  valid = false;
              }
          }
  
          return valid;
  
      }
  
      /**
       * Helper method to perform required field checks add error messages if the validation fails. Adds an error required to
       * GlobalVariables.errorMap using the given fieldName as the error key and retrieving the error label from the data dictionary
       * for the error required message param.
       *
       * @param businessObject - Business object to check for value
       * @param fieldName      - Name of the property in the business object
       */
      protected boolean validateRequiredField(BusinessObject businessObject, String fieldName) {
          boolean valid = true;
  
          Object fieldValue = ObjectUtils.getPropertyValue(businessObject, fieldName);
          if (fieldValue == null || (fieldValue instanceof String && StringUtils.isBlank(fieldName))) {
              String label = dataDictionaryService.getAttributeErrorLabel(businessObject.getClass(), fieldName);
              GlobalVariables.getMessageMap().putError(fieldName, OLEKeyConstants.ERROR_REQUIRED, label);
              valid = false;
          }
  
          return valid;
      }
  
      public DataDictionaryService getDataDictionaryService() {
          return dataDictionaryService;
      }
  
      public void setDataDictionaryService(DataDictionaryService dataDictionaryService) {
          this.dataDictionaryService = dataDictionaryService;
      }
  
      public PaymentRequestService getPaymentRequestService() {
          return paymentRequestService;
      }
  
      public void setPaymentRequestService(PaymentRequestService paymentRequestService) {
          this.paymentRequestService = paymentRequestService;
     }
 
 }