package org.kuali.ole.docstore.document.jcr;
   
   import org.kuali.ole.docstore.OleDocStoreException;
   import org.kuali.ole.docstore.common.document.content.instance.CallNumber;
   import org.kuali.ole.docstore.common.document.content.instance.OleHoldings;
   import org.kuali.ole.docstore.common.document.content.instance.xstream.HoldingOlemlRecordProcessor;
   import org.kuali.ole.docstore.model.xmlpojo.ingest.RequestDocument;
   import org.kuali.ole.docstore.common.document.content.instance.ShelvingOrder;
   import org.kuali.ole.docstore.common.document.content.instance.ShelvingScheme;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  import java.io.FileNotFoundException;
  import java.util.List;
  
  /**
   * Created with IntelliJ IDEA.
   * User: Pranitha J
   * Date: 27/2/13
   * Time: 3:18 PM
   * To change this template use File | Settings | File Templates.
   */
  public class JcrJcrWorkHoldingsDocumentManager extends JcrWorkInstanceDocumentManager {
  
      private static JcrJcrWorkHoldingsDocumentManager ourInstance = null;
      private static Logger LOG = LoggerFactory.getLogger(JcrJcrWorkHoldingsDocumentManager.class);
  
  
      public static JcrJcrWorkHoldingsDocumentManager getInstance() {
          if (null == ourInstance) {
              ourInstance = new JcrJcrWorkHoldingsDocumentManager();
          }
          return ourInstance;
      }
  
      @Override
      protected void modifyContent(RequestDocument reqDoc, Session session, Node nodeByUUID)
              throws RepositoryException, FileNotFoundException, OleDocStoreException {
          HoldingOlemlRecordProcessor holdProcessor = new HoldingOlemlRecordProcessor();
          if (reqDoc != null && reqDoc.getContent() != null) {
              // getting holdings from request document
              OleHoldings newHold = holdProcessor.fromXML(reqDoc.getContent().getContent());
              if (newHold != null && newHold.getCallNumber() != null) {
                  CallNumber cNum = newHold.getCallNumber();
                  // validate holdings call number
  //                validateCallNumber(cNum);
                  if (cNum.getNumber() != null && cNum.getNumber().trim().length() > 0) {
                      // add new shelving order if null
                      if (cNum.getShelvingOrder() == null) {
                          cNum.setShelvingOrder(new ShelvingOrder());
                      }
                      //get existing holdings from jackrabbit
                      String holdingsXml = nodeManager.getData(nodeByUUID);
                      JcrWorkItemDocumentManager workItemDocumentManager = JcrWorkItemDocumentManager.getInstance();
                      boolean status = true;
                      if (holdingsXml != null) {
                          OleHoldings existHol = holdProcessor.fromXML(holdingsXml);
                          setHoldValuesFromNullToEmpty(existHol.getCallNumber());
                          setHoldValuesFromNullToEmpty(newHold.getCallNumber());
                          if (!(existHol.getCallNumber().getNumber().equalsIgnoreCase(cNum.getNumber()) &&
                                  existHol.getCallNumber().getShelvingScheme().getCodeValue().equalsIgnoreCase(cNum.getShelvingScheme().getCodeValue()))) {
                              processCallNumber(newHold);
                              String newHolXml = holdProcessor.toXML(newHold);
                              reqDoc.getContent().setContent(newHolXml);
                              workItemDocumentManager.updateItemCallNumberFromHoldings(nodeByUUID, newHold, reqDoc);
                              status = false;
                          }
                      }
                      if (status && !(cNum.getShelvingOrder().getFullValue() != null &&
                              cNum.getShelvingOrder().getFullValue().trim().length() > 0)) {
                          processCallNumber(newHold);
  //                        workItemDocumentManager.updateItemCallNumberFromHoldings(nodeByUUID, newHold, reqDoc);
                      }
                  }
  
              }
          }
      }
  
      protected void updateContentToNode(RequestDocument reqDoc, Session session, byte[] documentBytes, Node nodeByUUID)
              throws RepositoryException, OleDocStoreException {
          documentBytes = convertContentToBytes(reqDoc);
          super.updateContentToNode(reqDoc, session, documentBytes, nodeByUUID);
          for (RequestDocument linkReqDoc : reqDoc.getLinkedRequestDocuments()) {
              documentBytes = convertContentToBytes(linkReqDoc);
              Node itemNode = nodeManager.getNodeByUUID(session, linkReqDoc.getId());
              super.updateContentToNode(linkReqDoc, session, documentBytes, itemNode);
          }
      }
  
      private void setHoldValuesFromNullToEmpty(CallNumber callNumber) {
          if (callNumber.getNumber() == null) {
              callNumber.setNumber("");
          }
          if (callNumber.getShelvingScheme() == null) {
              callNumber.setShelvingScheme(new ShelvingScheme());
         }
         if (callNumber.getShelvingScheme().getCodeValue() == null) {
             callNumber.getShelvingScheme().setCodeValue("");
         }
     }
 
     @Override
     public void validateInput(RequestDocument reqDoc, Object object, List<String> valuesList) throws OleDocStoreException {
         HoldingOlemlRecordProcessor holdingOlemlRecordProcessor = new HoldingOlemlRecordProcessor();
         if (reqDoc.getContent() != null && reqDoc.getContent().getContent() != null) {
             OleHoldings oleHoldings = holdingOlemlRecordProcessor.fromXML(reqDoc.getContent().getContent());
             validateHoldings(oleHoldings);
         }
     }
 
     public void validateHoldings(OleHoldings oleHoldings) throws OleDocStoreException {
         if (oleHoldings.getCallNumber() != null) {
             CallNumber callNumber = oleHoldings.getCallNumber();
             validateCallNumber(callNumber);
         }
     }
 }