/**
    * 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.engine.node;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.log4j.Logger;
  import org.jdom.Element;
  import org.kuali.rice.core.api.util.xml.XmlHelper;
  import org.kuali.rice.kew.api.WorkflowRuntimeException;
  import org.kuali.rice.kew.engine.RouteContext;
  import org.kuali.rice.kew.engine.RouteHelper;
  import org.kuali.rice.kew.exception.WorkflowServiceErrorException;
  import org.kuali.rice.kew.routeheader.DocumentContent;
  import org.kuali.rice.kew.routeheader.StandardDocumentContent;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kew.api.KewApiConstants;
  import org.kuali.rice.kim.api.identity.Person;
  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Iterator;
  
  
  /**
   * A node which will generate an FYI request to a university ID specified in the document content.
   *
   * @deprecated Use {@link org.kuali.rice.kew.rule.UniversityIdRoleAttribute} instead
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class FYIByUniversityId extends RequestActivationNode {
      private static final Logger LOG = Logger.getLogger(FYIByUniversityId.class);
  
  	public SimpleResult process(RouteContext context, RouteHelper helper)
  			throws Exception {
  
          LOG.debug("processing FYIByUniversityId node");
          Element rootElement = getRootElement(new StandardDocumentContent(context.getDocument().getDocContent()));
   		Collection<Element> fieldElements = XmlHelper.findElements(rootElement, "field");
          Iterator<Element> elementIter = fieldElements.iterator();
          while (elementIter.hasNext()) {
          	Element field = (Element) elementIter.next();
          	Element version = field.getParentElement();
          	if (version.getAttribute("current").getValue().equals("true")) {
          		LOG.debug("Looking for studentUid field:  " + field.getAttributeValue("name"));
                 	if (field.getAttribute("name")!= null && field.getAttributeValue("name").equals("studentUid")) {
                 		String employeeId = field.getChildText("value");
              		LOG.debug("Should send an FYI to employee ID:  " + employeeId);
                 		if (!StringUtils.isBlank(employeeId)) {
                 			Person person = KimApiServiceLocator.getPersonService().getPerson(employeeId);
  
                 			if (person == null) {
                 				throw new WorkflowRuntimeException("Failed to locate a Person with the given employee ID: " + employeeId);
                 			}
                 			if (!context.isSimulation()) {
                 				KEWServiceLocator.getWorkflowDocumentService().adHocRouteDocumentToPrincipal(person.getPrincipalId(), context.getDocument(), KewApiConstants.ACTION_REQUEST_FYI_REQ, null, null, "Notification Request", person.getPrincipalId(), "Notification Request", true, null);
                 			}
                 			//wfDoc.adHocRouteDocumentToPrincipal(KewApiConstants.ACTION_REQUEST_FYI_REQ, "Notification Request", new EmplIdVO(field.getChildText("value")), "Notification Request", true);
                  		LOG.debug("Sent FYI using the adHocRouteDocumentToPrincipal function to UniversityID:  " + person.getEmployeeId());
                  		break;
                 	}
          	}
          }
          }
  		return super.process(context, helper);
  	}
  
  
      private static Element getRootElement(DocumentContent docContent) {
          Element rootElement = null;
          try {
              rootElement = XmlHelper.buildJDocument(docContent.getDocument()).getRootElement();
          } catch (Exception e) {
              throw new WorkflowServiceErrorException("Invalid XML submitted", new ArrayList<Object>());
          }
          return rootElement;
      }
  
  
  	protected Object getService(String serviceName) {
  		return KEWServiceLocator.getService(serviceName);
  	}
  
  
  }