/*

  * Copyright 2005-2007 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.rice.kew.actions;

 import org.apache.log4j.MDC;

 import org.kuali.rice.kew.actionrequest.ActionRequestFactory;

 import org.kuali.rice.kew.actionrequest.ActionRequestValue;

 import org.kuali.rice.kew.actionrequest.KimPrincipalRecipient;

 import org.kuali.rice.kew.actiontaken.ActionTakenValue;

 import org.kuali.rice.kew.engine.node.RouteNodeInstance;

 import org.kuali.rice.kew.exception.InvalidActionTakenException;

 import org.kuali.rice.kew.exception.WorkflowException;

 import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 import org.kuali.rice.kew.util.KEWConstants;

 import org.kuali.rice.kim.api.identity.principal.PrincipalContract;

 import java.util.List;

 /**

  * Saves a document.  Puts the document in the persons action list that saved the document.

  * This can currently only be done by the initiator of the document.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 public class SaveActionEvent extends ActionTakenEvent {

     private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(SaveActionEvent.class);

     private static final String RESPONSIBILITY_DESCRIPTION = "Initiator needs to complete document.";

     public SaveActionEvent(DocumentRouteHeaderValue routeHeader, PrincipalContract principal) {

         super(KEWConstants.ACTION_TAKEN_SAVED_CD, routeHeader, principal);

     }

     public SaveActionEvent(DocumentRouteHeaderValue routeHeader, PrincipalContract principal, String annotation) {

         super(KEWConstants.ACTION_TAKEN_SAVED_CD, routeHeader, principal, annotation);

     }

     /* (non-Javadoc)

      * @see org.kuali.rice.kew.actions.ActionTakenEvent#isActionCompatibleRequest(java.util.List)

      */

     @Override

     public String validateActionRules() {

             return validateActionRulesCustom(true);

     }

     private String validateActionRulesCustom(boolean checkIfActionIsValid) {

             if (checkIfActionIsValid && (!getRouteHeader().isValidActionToTake(getActionPerformedCode()))) {

                     return "Document is not in a state to be saved";

             }

             // check state before checking kim

             if (! KEWServiceLocator.getDocumentTypePermissionService().canSave(getPrincipal().getPrincipalId(), getRouteHeader().getDocumentId(), getRouteHeader().getDocumentType(), getRouteHeader().getCurrentNodeNames(), getRouteHeader().getDocRouteStatus(), getRouteHeader().getInitiatorWorkflowId())) {

                     return "User is not authorized to Save document";

             }

             return "";

     }

     /**

      * This overridden method ...

      * 

      * @see org.kuali.rice.kew.actions.ActionTakenEvent#validateActionRules(java.util.List)

      */

     @Override

     public String validateActionRules(List<ActionRequestValue> actionRequests) {

             return validateActionRules();

     }

     public void recordAction() throws InvalidActionTakenException {

         MDC.put("docId", getRouteHeader().getDocumentId());

         LOG.debug("Checking to see if the action is legal");

         /* Code below for variable 'checkIfActionIsValid' is used to identify when the 

          * DocumentRouteHeaderValue 'legal actions' should be checked for the current

          * document.  The 'legal actions' for a document that is in status ENROUTE or 

          * EXCEPTION will currently say that a Save action is not valid to be performed

          * however we still want to allow the Save action to occur if called for backward

          * compatibility issues.

          */

         boolean checkIfActionIsValid = true;

         if (getRouteHeader().isEnroute() || getRouteHeader().isInException()) {

             // if document is enroute or exception... don't check if the action is valid... we will assume it is valid

             checkIfActionIsValid = false;

         }

         String errorMessage = validateActionRulesCustom(checkIfActionIsValid);

         if (!org.apache.commons.lang.StringUtils.isEmpty(errorMessage)) {

             throw new InvalidActionTakenException(errorMessage);

         }

         updateSearchableAttributesIfPossible();

         //    if (getRouteHeader().isValidActionToTake(getActionTakenCode())) {

         if (getRouteHeader().isStateInitiated()) {

             LOG.debug("Record the save action");

             ActionTakenValue actionTaken = saveActionTaken();

             //getRouteHeader().getActionRequests().add(generateSaveRequest());

             this.getActionRequestService().saveActionRequest(generateSaveRequest());

             notifyActionTaken(actionTaken);

             LOG.debug("Marking document saved");

             try {

                 String oldStatus = getRouteHeader().getDocRouteStatus();

                 getRouteHeader().markDocumentSaved();

                 String newStatus = getRouteHeader().getDocRouteStatus();

                 notifyStatusChange(newStatus, oldStatus);

                 KEWServiceLocator.getRouteHeaderService().saveRouteHeader(routeHeader);

             } catch (WorkflowException ex) {

                 LOG.warn(ex, ex);

                 throw new InvalidActionTakenException(ex.getMessage());

             }

         }

     }

     protected ActionRequestValue generateSaveRequest() {

         RouteNodeInstance initialNode = null;

         List initialNodes = KEWServiceLocator.getRouteNodeService().getInitialNodeInstances(getDocumentId());

             if (!initialNodes.isEmpty()) {

                 initialNode = (RouteNodeInstance)initialNodes.get(0);

             }

         //RouteNodeInstance initialNode = (RouteNodeInstance) KEWServiceLocator.getRouteNodeService().getInitialNodeInstances(getDocumentId()).get(0);

             ActionRequestFactory arFactory = new ActionRequestFactory(getRouteHeader(), initialNode);

             ActionRequestValue saveRequest = arFactory.createActionRequest(KEWConstants.ACTION_REQUEST_COMPLETE_REQ,

                 0, new KimPrincipalRecipient(getPrincipal()), RESPONSIBILITY_DESCRIPTION, KEWConstants.SAVED_REQUEST_RESPONSIBILITY_ID,

                     Boolean.TRUE, annotation);

             //      this.getActionRequestService().saveActionRequest(saveRequest);

             this.getActionRequestService().activateRequest(saveRequest);

             return saveRequest;

     }

 }