/**
    * Copyright 2005-2014 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 edu.sampleu.bookstore.rule;
  
  import edu.sampleu.bookstore.bo.BookOrder;
  import edu.sampleu.bookstore.document.BookOrderDocument;
  import org.kuali.rice.core.api.util.RiceKeyConstants;
  import org.kuali.rice.krad.document.Document;
  import org.kuali.rice.krad.rules.TransactionalDocumentRuleBase;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.KRADConstants;
  
  import java.util.List;
  
  
  /*
   * Business Rule for Book Order Document that follows prior to submit action.
   * Checks that book order/orders is/are not null or Empty and all the attributes are mentioned for each order.
   */
  
  public class BookOrderDocumentRule extends TransactionalDocumentRuleBase {
  
  	private static final String BOOK_ORDERS_PROPERTY_PATH = KRADConstants.DOCUMENT_PROPERTY_NAME + ".bookOrders";
  	private static final String NO_BOOK_ORDERS_ERROR_KEY = RiceKeyConstants.ERROR_CUSTOM;
  	private static final String ERROR_MESSAGE_NO_ORDERS = "You must add at least one entry to your book order.";
  	
  	private static final String BOOK_ORDERS_EMPTY_ERROR_KEY = RiceKeyConstants.ERROR_CUSTOM;
  	private static final String ERROR_MESSAGE_EMPTY_ORDERS = "You must add attributes to your book order.";
  	
  	@Override
  	protected boolean processCustomRouteDocumentBusinessRules(Document document) {
  		
  		System.out.println("@@@@ IN RULE CHECK");
  		
  		// cast the document to a BookOrderDocument
  		BookOrderDocument bookOrderDocument = (BookOrderDocument)document;
  		
  		// get the list of book orders of the book order document
  		List<BookOrder> bookOrders = bookOrderDocument.getBookOrders();
  		
  		// make sure that the list is not empty
  		if (bookOrders == null || bookOrders.isEmpty()) {
  			GlobalVariables.getMessageMap().putError(BOOK_ORDERS_PROPERTY_PATH, NO_BOOK_ORDERS_ERROR_KEY, ERROR_MESSAGE_NO_ORDERS);
  			System.out.println("@@@@ FALSE RULE CHECK");
  			return false;
  		} else {
  			for(BookOrder bookOrder : bookOrders){				
  				if(bookOrder.getBookId() == null || bookOrder.getDiscount() == null || bookOrder.getQuantity() == null){
  					GlobalVariables.getMessageMap().putError(BOOK_ORDERS_PROPERTY_PATH, BOOK_ORDERS_EMPTY_ERROR_KEY, ERROR_MESSAGE_EMPTY_ORDERS);
  					System.out.println("@@@@ FALSE RULE CHECK");
  					return false;
  				}				
  			}
  			
  		}
  		System.out.println("@@@@ TRUE RULE CHECK");
  		
  		return super.processCustomRouteDocumentBusinessRules(document);
  	}
  
  	
  
  	
  	
  }