/**
    * Copyright 2005-2015 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.routelog.web;
  
  import org.apache.struts.action.ActionForm;
  import org.apache.struts.action.ActionForward;
  import org.apache.struts.action.ActionMapping;
  import org.kuali.rice.kew.actionrequest.ActionRequestValue;
  import org.kuali.rice.kew.actionrequest.service.ActionRequestService;
  import org.kuali.rice.kew.actiontaken.ActionTakenValue;
  import org.kuali.rice.kew.api.KewApiServiceLocator;
  import org.kuali.rice.kew.api.WorkflowRuntimeException;
  import org.kuali.rice.kew.api.action.ActionRequest;
  import org.kuali.rice.kew.api.action.ActionRequestStatus;
  import org.kuali.rice.kew.api.action.RoutingReportCriteria;
  import org.kuali.rice.kew.api.document.DocumentDetail;
  import org.kuali.rice.kew.api.document.node.RouteNodeInstanceState;
  import org.kuali.rice.kew.api.exception.InvalidActionTakenException;
  import org.kuali.rice.kew.doctype.SecuritySession;
  import org.kuali.rice.kew.doctype.service.DocumentSecurityService;
  import org.kuali.rice.kew.dto.DTOConverter.RouteNodeInstanceLoader;
  import org.kuali.rice.kew.engine.node.Branch;
  import org.kuali.rice.kew.engine.node.NodeState;
  import org.kuali.rice.kew.engine.node.RouteNode;
  import org.kuali.rice.kew.engine.node.RouteNodeInstance;
  import org.kuali.rice.kew.engine.node.service.RouteNodeService;
  import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kew.util.Utilities;
  import org.kuali.rice.kew.web.KewKualiAction;
  import org.kuali.rice.krad.UserSession;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  
  /**
   * A Struts Action used to display the routelog.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class RouteLogAction extends KewKualiAction {
  
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(RouteLogAction.class);
      private static Comparator<ActionRequestValue> ROUTE_LOG_ACTION_REQUEST_SORTER = new Utilities.RouteLogActionRequestSorter();
      
      @Override
  	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
  
          RouteLogForm rlForm = (RouteLogForm) form;
          String documentId = null;
          if (! org.apache.commons.lang.StringUtils.isEmpty(rlForm.getDocumentId())) {
          	documentId = rlForm.getDocumentId();
          } else if (! org.apache.commons.lang.StringUtils.isEmpty(rlForm.getDocId())) {
          	documentId =rlForm.getDocId();
          } else {
          	throw new WorkflowRuntimeException("No paramater provided to fetch document");
          }
  
          DocumentRouteHeaderValue routeHeader = KEWServiceLocator.getRouteHeaderService().getRouteHeader(documentId);
  
          DocumentSecurityService security = KEWServiceLocator.getDocumentSecurityService();
          if (!security.routeLogAuthorized(getUserSession().getPrincipalId(), routeHeader, new SecuritySession(GlobalVariables.getUserSession().getPrincipalId()))) {
            return mapping.findForward("NotAuthorized");
          }
          
          fixActionRequestsPositions(routeHeader);
          populateRouteLogFormActionRequests(rlForm, routeHeader);
  
          rlForm.setLookFuture(routeHeader.getDocumentType().getLookIntoFuturePolicy().getPolicyValue().booleanValue());
  
          if (rlForm.isShowFuture()) {
              try {
                  populateRouteLogFutureRequests(rlForm, routeHeader);
              } catch (Exception e) {
                  String errorMsg = "Unable to determine Future Action Requests";
                 LOG.info(errorMsg,e);
                 rlForm.setShowFutureError(errorMsg);
             }
         }
         request.setAttribute("routeHeader", routeHeader);
         
 		// check whether action message logging should be enabled, user must
 		// have KIM permission for doc type 
         boolean isAuthorizedToAddRouteLogMessage = KEWServiceLocator.getDocumentTypePermissionService()
 				.canAddRouteLogMessage(GlobalVariables.getUserSession().getPrincipalId(), routeHeader);
 		if (isAuthorizedToAddRouteLogMessage) {
 			rlForm.setEnableLogAction(true);
 		} else {
 			rlForm.setEnableLogAction(false);
 		}
         
         return super.execute(mapping, rlForm, request, response);
     }
 
     @SuppressWarnings("unchecked")
 	public void populateRouteLogFormActionRequests(RouteLogForm rlForm, DocumentRouteHeaderValue routeHeader) {
         List<ActionRequestValue> rootRequests = getActionRequestService().getRootRequests(routeHeader.getActionRequests());
         Collections.sort(rootRequests, ROUTE_LOG_ACTION_REQUEST_SORTER);
         rootRequests = switchActionRequestPositionsIfPrimaryDelegatesPresent(rootRequests);
         int arCount = 0;
         for ( ActionRequestValue actionRequest : rootRequests ) {
             if (actionRequest.isPending()) {
                 arCount++;
 
                 if (ActionRequestStatus.INITIALIZED.getCode().equals(actionRequest.getStatus())) {
                     actionRequest.setDisplayStatus("PENDING");
                 } else if (ActionRequestStatus.ACTIVATED.getCode().equals(actionRequest.getStatus())) {
                     actionRequest.setDisplayStatus("IN ACTION LIST");
                 }
             }
         }
         rlForm.setRootRequests(rootRequests);
         rlForm.setPendingActionRequestCount(arCount);
     }
 
     @SuppressWarnings("unchecked")
 	private ActionRequestValue switchActionRequestPositionIfPrimaryDelegatePresent( ActionRequestValue actionRequest ) {
     	
     	/**
     	 * KULRICE-4756 - The main goal here is to fix the regression of what happened in Rice 1.0.2 with the display
     	 * of primary delegate requests.  The delegate is displayed at the top-most level correctly on action requests
     	 * that are "rooted" at a "role" request.
     	 * 
     	 * If they are rooted at a principal or group request, then the display of the primary delegator at the top-most
     	 * level does not happen (instead it shows the delegator and you have to expand the request to see the primary
     	 * delegate).
     	 * 
     	 * Ultimately, the KAI group and Rice BA need to come up with a specification for how the Route Log should
     	 * display delegate information.  For now, will fix this so that in the non "role" case, it will put the
     	 * primary delegate as the outermost request *except* in the case where there is more than one primary delegate.
     	 */
     	
     	if (!actionRequest.isRoleRequest()) {
     		List<ActionRequestValue> primaryDelegateRequests = actionRequest.getPrimaryDelegateRequests();
     		// only display primary delegate request at top if there is only *one* primary delegate request
     		if ( primaryDelegateRequests.size() != 1) {
     			return actionRequest;
     		}
     		ActionRequestValue primaryDelegateRequest = primaryDelegateRequests.get(0);
     		actionRequest.getChildrenRequests().remove(primaryDelegateRequest);
     		primaryDelegateRequest.setChildrenRequests(actionRequest.getChildrenRequests());
     		primaryDelegateRequest.setParentActionRequest(actionRequest.getParentActionRequest());
 
     		actionRequest.setChildrenRequests( new ArrayList<ActionRequestValue>(0) );
     		actionRequest.setParentActionRequest(primaryDelegateRequest);
 
     		primaryDelegateRequest.getChildrenRequests().add(0, actionRequest);
     		
     		for (ActionRequestValue delegateRequest : primaryDelegateRequest.getChildrenRequests()) {
     			delegateRequest.setParentActionRequest(primaryDelegateRequest);
     		}
     		
     		return primaryDelegateRequest;
     	}
     	
     	return actionRequest;
     }
 
     private List<ActionRequestValue> switchActionRequestPositionsIfPrimaryDelegatesPresent( Collection<ActionRequestValue> actionRequests ) {
     	List<ActionRequestValue> results = new ArrayList<ActionRequestValue>( actionRequests.size() );
     	for ( ActionRequestValue actionRequest : actionRequests ) {
 			results.add( switchActionRequestPositionIfPrimaryDelegatePresent(actionRequest) );
     	}
     	return results;
     }
     
     @SuppressWarnings("unchecked")
     private void fixActionRequestsPositions(DocumentRouteHeaderValue routeHeader) {
         for (ActionTakenValue actionTaken : routeHeader.getActionsTaken()) {
             Collections.sort((List<ActionRequestValue>) actionTaken.getActionRequests(), ROUTE_LOG_ACTION_REQUEST_SORTER);
             actionTaken.setActionRequests( actionTaken.getActionRequests() );
         }
     }
     
     /**
      * executes a simulation of the future routing, and sets the futureRootRequests and futureActionRequestCount
      * properties on the provided RouteLogForm.
      * 
      * @param rlForm the RouteLogForm --used in a write-only fashion.
      * @param document the DocumentRouteHeaderValue for the document whose future routing is being simulated.
      * @throws Exception
      */
     public void populateRouteLogFutureRequests(RouteLogForm rlForm, DocumentRouteHeaderValue document) throws Exception {
 
         RoutingReportCriteria reportCriteria = RoutingReportCriteria.Builder.createByDocumentId(document.getDocumentId()).build();
         String applicationId = document.getDocumentType().getApplicationId();
 
         // gather the IDs for action requests that predate the simulation
 		Set<String> preexistingActionRequestIds = getActionRequestIds(document);
         
 		// run the simulation
         DocumentDetail documentDetail = KewApiServiceLocator.getWorkflowDocumentActionsService(applicationId).executeSimulation(reportCriteria);
 
         // fabricate our ActionRequestValueS from the results
         List<ActionRequestValue> futureActionRequests = 
         	reconstituteActionRequestValues(documentDetail, preexistingActionRequestIds);
 
         Collections.sort(futureActionRequests, ROUTE_LOG_ACTION_REQUEST_SORTER);
         
         futureActionRequests = switchActionRequestPositionsIfPrimaryDelegatesPresent(futureActionRequests);
         
         int pendingActionRequestCount = 0;
         for (ActionRequestValue actionRequest: futureActionRequests) {
             if (actionRequest.isPending()) {
                 pendingActionRequestCount++;
 
                 if (ActionRequestStatus.INITIALIZED.getCode().equals(actionRequest.getStatus())) {
                     actionRequest.setDisplayStatus("PENDING");
                 } else if (ActionRequestStatus.ACTIVATED.getCode().equals(actionRequest.getStatus())) {
                     actionRequest.setDisplayStatus("IN ACTION LIST");
                 }
             }
         }
 
         rlForm.setFutureRootRequests(futureActionRequests);
         rlForm.setFutureActionRequestCount(pendingActionRequestCount);
     }
 
 
 	/**
 	 * This utility method returns a Set of LongS containing the IDs for the ActionRequestValueS associated with 
 	 * this DocumentRouteHeaderValue. 
 	 */
 	@SuppressWarnings("unchecked")
 	private Set<String> getActionRequestIds(DocumentRouteHeaderValue document) {
 		Set<String> actionRequestIds = new HashSet<String>();
 
 		List<ActionRequestValue> actionRequests = 
 			KEWServiceLocator.getActionRequestService().findAllActionRequestsByDocumentId(document.getDocumentId());
 		
 		if (actionRequests != null) {
 			for (ActionRequestValue actionRequest : actionRequests) {
 				if (actionRequest.getActionRequestId() != null) {
 					actionRequestIds.add(actionRequest.getActionRequestId());
 				}
 			}
 		}
 		return actionRequestIds;
 	}
 
 	/**
 	 * This method creates ActionRequestValue objects from the DocumentDetailDTO output from
 	 * 
 	 * @param documentDetail contains the DTOs from which the ActionRequestValues are reconstituted
 	 * @param preexistingActionRequestIds this is a Set of ActionRequest IDs that will not be reconstituted
 	 * @return the ActionRequestValueS that have been created
 	 */
 	private List<ActionRequestValue> reconstituteActionRequestValues(DocumentDetail documentDetail,
 			Set<String> preexistingActionRequestIds) {
 
         RouteNodeInstanceFabricator routeNodeInstanceFabricator = 
     		new RouteNodeInstanceFabricator(KEWServiceLocator.getRouteNodeService());
 
         if (documentDetail.getRouteNodeInstances() != null && !documentDetail.getRouteNodeInstances().isEmpty()) {
         	for (org.kuali.rice.kew.api.document.node.RouteNodeInstance routeNodeInstanceVO : documentDetail.getRouteNodeInstances()) {
         		routeNodeInstanceFabricator.importRouteNodeInstanceDTO(routeNodeInstanceVO);
         	}
 		}
         
         List<ActionRequest> actionRequestVOs = documentDetail.getActionRequests();
         List<ActionRequestValue> futureActionRequests = new ArrayList<ActionRequestValue>();
         if (actionRequestVOs != null) {
 			for (ActionRequest actionRequestVO : actionRequestVOs) {
 				if (actionRequestVO != null) {
 					if (!preexistingActionRequestIds.contains(actionRequestVO.getId())) {
 						ActionRequestValue converted = ActionRequestValue.from(actionRequestVO,
                                 routeNodeInstanceFabricator);
 						futureActionRequests.add(converted);
 					}
 				}
 			}
 		}
 		return futureActionRequests;
 	}
     
     private ActionRequestService getActionRequestService() {
         return (ActionRequestService) KEWServiceLocator.getService(KEWServiceLocator.ACTION_REQUEST_SRV);
     }
     
     private UserSession getUserSession() {
         return GlobalVariables.getUserSession();
     }
     
     /**
      * Creates dummy RouteNodeInstances based on imported data from RouteNodeInstanceDTOs.
      * It is then able to vend those RouteNodeInstanceS back by their IDs.
      * 
      * @author Kuali Rice Team (rice.collab@kuali.org)
      *
      */
     private static class RouteNodeInstanceFabricator implements RouteNodeInstanceLoader {
 
     	private Map<String,Branch> branches = new HashMap<String, Branch>();
     	private Map<String, RouteNodeInstance> routeNodeInstances =
                 new HashMap<String, RouteNodeInstance>();
     	private Map<String,RouteNode> routeNodes = new HashMap<String, RouteNode>();
     	private Map<String,NodeState> nodeStates = new HashMap<String, NodeState>();
 
     	private RouteNodeService routeNodeService;
     	
     	/**
 		 * This constructs a FutureRouteNodeInstanceFabricator, which will generate bogus
 		 * RouteNodeInstances for SimulationEngine results
 		 * 
 		 */
 		public RouteNodeInstanceFabricator(RouteNodeService routeNodeService) {
 			this.routeNodeService = routeNodeService;
 		}
 
 		/**
 		 * 
 		 * This method looks at the given RouteNodeInstanceDTO and imports it (and all it's ancestors)
 		 * as dummy RouteNodeInstanceS
 		 * 
 		 * @param nodeInstanceDTO
 		 */
 		public void importRouteNodeInstanceDTO(org.kuali.rice.kew.api.document.node.RouteNodeInstance nodeInstanceDTO) {
 			_importRouteNodeInstanceDTO(nodeInstanceDTO);
 		}
 		
 		/**
 		 * helper method for {@link #importRouteNodeInstanceDTO(org.kuali.rice.kew.api.document.node.RouteNodeInstance)} which does all
 		 * the work.  The public method just wraps this one but hides the returned RouteNodeInstance,
 		 * which is used for the recursive call to populate the nextNodeInstanceS inside our 
 		 * RouteNodeInstanceS.
 		 * 
 		 * @param nodeInstanceDTO
 		 * @return
 		 */
     	private RouteNodeInstance _importRouteNodeInstanceDTO(org.kuali.rice.kew.api.document.node.RouteNodeInstance nodeInstanceDTO) {
     		if (nodeInstanceDTO == null) {
     			return null;
     		}
     		RouteNodeInstance nodeInstance = new RouteNodeInstance();
     		nodeInstance.setActive(nodeInstanceDTO.isActive());
 
     		nodeInstance.setComplete(nodeInstanceDTO.isComplete());
     		nodeInstance.setDocumentId(nodeInstanceDTO.getDocumentId());
     		nodeInstance.setInitial(nodeInstanceDTO.isInitial());
 
     		Branch branch = getBranch(nodeInstanceDTO.getBranchId());
     		nodeInstance.setBranch(branch);
 
     		if (nodeInstanceDTO.getRouteNodeId() != null) {
     			RouteNode routeNode = routeNodeService.findRouteNodeById(nodeInstanceDTO.getRouteNodeId());
 
     			if (routeNode == null) {
     				routeNode = getRouteNode(nodeInstanceDTO.getRouteNodeId());
     				routeNode.setNodeType(nodeInstanceDTO.getName());
     			}
 
     			nodeInstance.setRouteNode(routeNode);
 
     			if (routeNode.getBranch() != null) {
         			branch.setName(routeNode.getBranch().getName());
         		} 
     		}
 
     		RouteNodeInstance process = getRouteNodeInstance(nodeInstanceDTO.getProcessId());
     		nodeInstance.setProcess(process);
 
     		nodeInstance.setRouteNodeInstanceId(nodeInstanceDTO.getId());
 
     		List<NodeState> nodeState = new ArrayList<NodeState>();
     		if (nodeInstanceDTO.getState() != null) {
 				for (RouteNodeInstanceState stateDTO : nodeInstanceDTO.getState()) {
 					NodeState state = getNodeState(stateDTO.getId());
 					if (state != null) {
 						state.setKey(stateDTO.getKey());
 						state.setValue(stateDTO.getValue());
 						state.setStateId(stateDTO.getId());
 						state.setNodeInstance(nodeInstance);
 						nodeState.add(state);
 					}
 				}
 			}
     		nodeInstance.setState(nodeState);
 
     		List<RouteNodeInstance> nextNodeInstances = new ArrayList<RouteNodeInstance>();
 
 
     		for (org.kuali.rice.kew.api.document.node.RouteNodeInstance nextNodeInstanceVO : nodeInstanceDTO.getNextNodeInstances()) {
     			// recurse to populate nextNodeInstances
     			nextNodeInstances.add(_importRouteNodeInstanceDTO(nextNodeInstanceVO));
     		}
             nodeInstance.setNextNodeInstances(nextNodeInstances);
 
     		routeNodeInstances.put(nodeInstance.getRouteNodeInstanceId(), nodeInstance);
     		return nodeInstance;
     	}
     	
 		/**
 		 * This method returns a dummy RouteNodeInstance for the given ID, or null if it hasn't
 		 * imported from a RouteNodeInstanceDTO with that ID
 		 * 
 		 * @see org.kuali.rice.kew.dto.DTOConverter.RouteNodeInstanceLoader#load(String)
 		 */
 		@Override
 		public RouteNodeInstance load(String routeNodeInstanceID) {
 			return routeNodeInstances.get(routeNodeInstanceID);
 		}
 
 
     	/**
     	 * This method creates bogus BranchES as needed
     	 * 
     	 * @param branchId
     	 * @return
     	 */
     	private Branch getBranch(String branchId) {
     		Branch result = null;
 
     		if (branchId != null) {
     			// if branch doesn't exist, create it
     			if (!branches.containsKey(branchId)) {
     				result = new Branch();
     				result.setBranchId(branchId);
     				branches.put(branchId, result);
     			} else {
     				result = branches.get(branchId);
     			}
     		}
     		return result;
     	}
 
     	/**
     	 * This method creates bogus RouteNodeS as needed
     	 * 
     	 * @param routeNodeId
     	 * @return
     	 */
     	private RouteNode getRouteNode(String routeNodeId) {
     		RouteNode result = null;
 
     		if (routeNodeId != null) {
     			// if RouteNode doesn't exist, create it
     			if (!routeNodes.containsKey(routeNodeId)) {
     				result = new RouteNode();
     				result.setRouteNodeId(routeNodeId);
     				routeNodes.put(routeNodeId, result);
     			} else {
     				result = routeNodes.get(routeNodeId);
     			}
     		}
     		return result;
     	}
 
     	/**
     	 * This method creates bogus RouteNodeInstanceS as needed
     	 * 
     	 * @param routeNodeInstanceId
     	 * @return
     	 */
     	public RouteNodeInstance getRouteNodeInstance(String routeNodeInstanceId) {
     		RouteNodeInstance result = null;
 
     		if (routeNodeInstanceId != null) {
     			// if RouteNodeInstance doesn't exist, create it
     			if (!routeNodeInstances.containsKey(routeNodeInstanceId)) {
                     result = new RouteNodeInstance();
     				result.setRouteNodeInstanceId(routeNodeInstanceId);
     				routeNodeInstances.put(routeNodeInstanceId, result);
     			} else {
     				result = routeNodeInstances.get(routeNodeInstanceId);
     			}
     		}
     		return result;
     	}
 
     	/**
     	 * This method creates bogus NodeStateS as needed
     	 * 
     	 * @param nodeStateId
     	 * @return
     	 */
     	private NodeState getNodeState(String nodeStateId) {
     		NodeState result = null;
 
     		if (nodeStateId != null) {
     			// if NodeState doesn't exist, create it
     			if (!nodeStates.containsKey(nodeStateId)) {
     				result = new NodeState();
     				result.setNodeStateId(nodeStateId);
     				nodeStates.put(nodeStateId, result);
     			} else {
     				result = nodeStates.get(nodeStateId);
     			}
     		}
     		return result;
     	}
 
     } // end inner class FutureRouteNodeInstanceFabricator
 
     /**
      * Logs a new message to the route log for the current document, then refreshes the action taken list to display
      * back the new message in the route log tab. User must have permission to log a message for the doc type and the
      * request must be coming from the route log tab display (not the route log page).
      */
 	public ActionForward logActionMessageInRouteLog(ActionMapping mapping, ActionForm form, HttpServletRequest request,
 			HttpServletResponse response) throws Exception {
 		RouteLogForm routeLogForm = (RouteLogForm) form;
 
 		String documentId = null;
 		if (!org.apache.commons.lang.StringUtils.isEmpty(routeLogForm.getDocumentId())) {
 			documentId = routeLogForm.getDocumentId();
 		} else if (!org.apache.commons.lang.StringUtils.isEmpty(routeLogForm.getDocId())) {
 			documentId = routeLogForm.getDocId();
 		} else {
 			throw new WorkflowRuntimeException("No paramater provided to fetch document");
 		}
 		
 		DocumentRouteHeaderValue routeHeader = KEWServiceLocator.getRouteHeaderService().getRouteHeader(documentId);
 		
 		// check user has permission to add a route log message
 		boolean isAuthorizedToAddRouteLogMessage = KEWServiceLocator.getDocumentTypePermissionService()
 				.canAddRouteLogMessage(GlobalVariables.getUserSession().getPrincipalId(), routeHeader);
 
 		if (!isAuthorizedToAddRouteLogMessage) {
 			throw new InvalidActionTakenException("Principal with name '"
 					+ GlobalVariables.getUserSession().getPrincipalName()
 					+ "' is not authorized to add route log messages for documents of type '"
 					+ routeHeader.getDocumentType().getName());
 		}
 
 		LOG.info("Logging new action message for user " + GlobalVariables.getUserSession().getPrincipalName()
 				+ ", route header " + routeHeader);
 		KEWServiceLocator.getWorkflowDocumentService().logDocumentAction(
 				GlobalVariables.getUserSession().getPrincipalId(), routeHeader,
 				routeLogForm.getNewRouteLogActionMessage());
 
 		routeLogForm.setNewRouteLogActionMessage("");
 
 		// retrieve routeHeader again to pull new action taken
 		routeHeader = KEWServiceLocator.getRouteHeaderService().getRouteHeader(documentId, true);
 		fixActionRequestsPositions(routeHeader);
 		request.setAttribute("routeHeader", routeHeader);
 
 		return mapping.findForward(getDefaultMapping());
 	}
     
 }