/**
    * Copyright 2004-2013 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.hr.lm.workflow;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.log4j.Logger;
  import org.joda.time.DateTime;
  import org.kuali.kpme.core.KPMENamespace;
  import org.kuali.kpme.core.assignment.Assignment;
  import org.kuali.kpme.core.calendar.entry.CalendarEntry;
  import org.kuali.kpme.core.role.KPMERole;
  import org.kuali.kpme.core.service.HrServiceLocator;
  import org.kuali.kpme.core.workarea.WorkArea;
  import org.kuali.kpme.tklm.common.TkConstants;
  import org.kuali.kpme.tklm.leave.block.LeaveBlock;
  import org.kuali.kpme.tklm.leave.service.LmServiceLocator;
  import org.kuali.kpme.tklm.leave.workflow.LeaveRequestDocument;
  import org.kuali.rice.kew.api.identity.Id;
  import org.kuali.rice.kew.api.identity.PrincipalId;
  import org.kuali.rice.kew.api.rule.RoleName;
  import org.kuali.rice.kew.engine.RouteContext;
  import org.kuali.rice.kew.routeheader.DocumentContent;
  import org.kuali.rice.kew.rule.AbstractRoleAttribute;
  import org.kuali.rice.kew.rule.ResolvedQualifiedRole;
  import org.kuali.rice.kim.api.role.RoleMember;
  
  @Deprecated
  public class LeaveRequestWorkflowAttribute extends AbstractRoleAttribute {
  
  	private static final long serialVersionUID = -6939277052363491806L;
  	
  	private static final Logger LOG = Logger.getLogger(LeaveRequestWorkflowAttribute.class);
  
      @Override
      public List<String> getQualifiedRoleNames(String roleName, DocumentContent documentContent) {
          List<String> roles = new ArrayList<String>();
          String documentNumber = documentContent.getRouteContext().getDocument().getDocumentId();
          LeaveRequestDocument leaveRequestDocument = LmServiceLocator.getLeaveRequestDocumentService().getLeaveRequestDocument(documentNumber);
  
          if (leaveRequestDocument != null) {
              LeaveBlock leaveBlock = leaveRequestDocument.getLeaveBlock();
              CalendarEntry ce = getCalendarEntry(leaveBlock);
              List<Assignment> assignments = HrServiceLocator.getAssignmentService().getAssignmentsByCalEntryForLeaveCalendar(leaveBlock.getPrincipalId(), ce);
              for (Assignment assignment : assignments) {
                  String roleStr = roleName + "_" + assignment.getWorkArea();
                  if (!roles.contains(roleStr)) {
                      roles.add(roleStr);
                  }
              }
          }
          
          return roles;
      }
  
      @Override
      public ResolvedQualifiedRole resolveQualifiedRole(RouteContext routeContext, String roleName, String qualifiedRole) {
          ResolvedQualifiedRole rqr = new ResolvedQualifiedRole();
          Long workAreaNumber = null;
  
          try {
              int pos = qualifiedRole.lastIndexOf("_");
              if (pos > -1) {
                  String subs = qualifiedRole.substring(pos+1, qualifiedRole.length());
                  workAreaNumber = Long.parseLong(subs);
              }
          } catch (NumberFormatException nfe) {
              LOG.error("qualifiedRole did not contain numeric data for work area.");
          }
  
          if (workAreaNumber == null) {
              throw new RuntimeException("Unable to resolve work area during routing.");
          }
  
          List<Id> principals = new ArrayList<Id>();
          String routeHeaderId = routeContext.getDocument().getDocumentId();
          LeaveRequestDocument leaveRequestDocument = LmServiceLocator.getLeaveRequestDocumentService().getLeaveRequestDocument(routeHeaderId);
          LeaveBlock leaveBlock = LmServiceLocator.getLeaveBlockService().getLeaveBlock(leaveRequestDocument.getLmLeaveBlockId());
          WorkArea workArea = HrServiceLocator.getWorkAreaService().getWorkArea(workAreaNumber, leaveBlock.getLeaveLocalDate());
  
          List<RoleMember> roleMembers = new ArrayList<RoleMember>();
          
  		if (TkConstants.ROLE_TK_APPROVER.equals(roleName)) {
  	        roleMembers.addAll(HrServiceLocator.getKPMERoleService().getRoleMembersInWorkArea(KPMENamespace.KPME_HR.getNamespaceCode(), KPMERole.APPROVER.getRoleName(), workAreaNumber, new DateTime(), true));
 	        roleMembers.addAll(HrServiceLocator.getKPMERoleService().getRoleMembersInWorkArea(KPMENamespace.KPME_HR.getNamespaceCode(), KPMERole.APPROVER_DELEGATE.getRoleName(), workAreaNumber, new DateTime(), true));
 		}
 		
         for (RoleMember roleMember : roleMembers) {
         	principals.add(new PrincipalId(roleMember.getMemberId()));
 	    }
 
         if (principals.size() == 0) {
             throw new RuntimeException("No principals to route to. Push to exception routing.");
         }
         
         rqr.setRecipients(principals);
         rqr.setAnnotation("Dept: "+ workArea.getDept()+", Work Area: "+workArea.getWorkArea());
 
         return rqr;
     }
 
     @Override
     public List<RoleName> getRoleNames() {
         return Collections.emptyList();
     }
 
     private CalendarEntry getCalendarEntry(LeaveBlock leaveBlock) {
         return HrServiceLocator.getCalendarEntryService().getCalendarEntry(leaveBlock.getCalendarId());
     }
 }