/**
    * Copyright 2005-2012 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.ActionRequestValue;
  import org.kuali.rice.kew.actiontaken.ActionTakenValue;
  import org.kuali.rice.kew.api.exception.WorkflowException;
  import org.kuali.rice.kew.engine.node.ProcessDefinitionBo;
  import org.kuali.rice.kew.api.exception.InvalidActionTakenException;
  import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kew.api.KewApiConstants;
  import org.kuali.rice.kim.api.identity.principal.PrincipalContract;
  
  import java.util.List;
  
  
  /**
   * Action that puts the document in routing.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class RouteDocumentAction extends ActionTakenEvent {
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(RouteDocumentAction.class);
  
      public RouteDocumentAction(DocumentRouteHeaderValue rh, PrincipalContract principal) {
          super(KewApiConstants.ACTION_TAKEN_COMPLETED_CD, rh, principal);
      }
  
      public RouteDocumentAction(DocumentRouteHeaderValue rh, PrincipalContract principal, String annotation) {
          super(KewApiConstants.ACTION_TAKEN_COMPLETED_CD, rh, principal, annotation);
      }
  
      /* (non-Javadoc)
       * @see org.kuali.rice.kew.actions.ActionTakenEvent#getActionPerformedCode()
       */
      @Override
      public String getActionPerformedCode() {
          return KewApiConstants.ACTION_TAKEN_ROUTED_CD;
      }
  
      /* (non-Javadoc)
       * @see org.kuali.rice.kew.actions.ActionTakenEvent#isActionCompatibleRequest(java.util.List)
       */
      @Override
      public String validateActionRules() {
      	// check state before checking kim
          if (!getRouteHeader().isValidActionToTake(getActionPerformedCode())) {
              return "Document is not in a state to be routed";
          }
      	if (! KEWServiceLocator.getDocumentTypePermissionService().canRoute(getPrincipal().getPrincipalId(), getRouteHeader())) {
      		return "User is not authorized to Route document";
      	}
          return "";
      }
  
      @Override
      public String validateActionRules(List<ActionRequestValue> actionRequests) {
      	return validateActionRules();
      }
      
      /**
       * Record the routing action. To route a document, it must be in the proper state. Previous requests and actions have no bearing on the outcome of this action, unless the
       * @throws org.kuali.rice.kew.api.exception.InvalidActionTakenException
       */
      public void recordAction() throws InvalidActionTakenException {
          MDC.put("docId", getRouteHeader().getDocumentId());
          updateSearchableAttributesIfPossible();
  
          LOG.debug("Routing document : " + annotation);
  
          LOG.debug("Checking to see if the action is legal");
          String errorMessage = validateActionRules();
          if (!org.apache.commons.lang.StringUtils.isEmpty(errorMessage)) {
              throw new InvalidActionTakenException(errorMessage);
          }
  
  
          // we want to check that the "RouteDocument" command is valid here, not the "Complete" command (which is in our Action's action taken code)
          LOG.debug("Record the routing action");
          ActionTakenValue actionTaken = saveActionTaken();
  
          //TODO this will get all pending AR's even if they haven't been in an action list... This seems bad
          List<ActionRequestValue> actionRequests = getActionRequestService().findPendingByDoc(getDocumentId());
         LOG.debug("Deactivate all pending action requests");
         // deactivate any requests for the user that routed the document.
         for (ActionRequestValue actionRequest : actionRequests)
         {
             // requests generated to the user who is routing the document should be deactivated
             if ((getPrincipal().getPrincipalId().equals(actionRequest.getPrincipalId())) && (actionRequest.isActive()))
             {
                 getActionRequestService().deactivateRequest(actionTaken, actionRequest);
             }
             // requests generated by a save action should be deactivated
             else if (KewApiConstants.SAVED_REQUEST_RESPONSIBILITY_ID.equals(actionRequest.getResponsibilityId()))
             {
                 getActionRequestService().deactivateRequest(actionTaken, actionRequest);
             }
         }
 
             notifyActionTaken(actionTaken);
 
             try {
                 String oldStatus = getRouteHeader().getDocRouteStatus();
                 getRouteHeader().markDocumentEnroute();
                 
                 if (((ProcessDefinitionBo)getRouteHeader().getDocumentType().getProcesses().get(0)).getInitialRouteNode() == null) {
                     getRouteHeader().markDocumentProcessed();
                     getRouteHeader().markDocumentFinalized();
                 }
 
                 getRouteHeader().setRoutedByUserWorkflowId(getPrincipal().getPrincipalId());
 
                 String newStatus = getRouteHeader().getDocRouteStatus();
                 notifyStatusChange(newStatus, oldStatus);
                 KEWServiceLocator.getRouteHeaderService().saveRouteHeader(getRouteHeader());
             } catch (WorkflowException ex) {
                 LOG.warn(ex, ex);
 	            throw new InvalidActionTakenException(ex.getMessage());
             }
 
     }
 }