/**
    *
    */
   package org.kuali.student.lum.workflow.qualifierresolver;
   
   import java.util.ArrayList;
   import java.util.LinkedHashMap;
   import java.util.List;
   import java.util.Map;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.kew.engine.RouteContext;
  import org.kuali.rice.student.bo.KualiStudentKimAttributes;
  import org.kuali.student.r2.common.exceptions.DoesNotExistException;
  import org.kuali.student.r2.common.util.ContextUtils;
  import org.kuali.student.r2.core.organization.dto.OrgInfo;
  import org.kuali.student.r2.core.organization.dto.OrgOrgRelationInfo;
  import org.kuali.student.r2.core.organization.service.OrganizationService;
  import org.kuali.student.lum.workflow.node.OrganizationDynamicNode;
  
  /**
   * A qualifier resolver class that is used by the hierarchy routing node {@link OrganizationDynamicNode}.
   *
   * This qualifier resolver will get the organization id value from inside the current route node instance and use the
   * {@link OrganizationService#getOrgOrgRelationsByOrg(String)} method to find all relations to it. From those relations
   * this class will select the ones that are both active and of the relation type matching
   * {@link AbstractOrganizationServiceQualifierResolver.KUALI_ORG_TYPE_CURRICULUM_PARENT}. Once the list of those relations has been
   * determined this qualifier resolver will select any of the organizations that match the above relation details but
   * also only organizations that are of the type {@link AbstractOrganizationServiceQualifierResolver.KUALI_ORG_COC}. Those
   * organizations will be returned as qualifications with the details being the organization id and the organization
   * short name fields.
   *
   * If no relation is found that is both active and of the relation type matching
   * {@link AbstractOrganizationServiceQualifierResolver.KUALI_ORG_TYPE_CURRICULUM_PARENT} then this class will use the organization
   * found on the current route node instance as the qualification returned.
   *
   */
  public class OrganizationCurriculumCommitteeQualifierResolver extends AbstractOrganizationServiceQualifierResolver {
      protected static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(OrganizationCurriculumCommitteeQualifierResolver.class);
  
      @Override
      public List<Map<String,String>> resolve(RouteContext routeContext) {
          // get the organization id from the current route node instance and error out if not found
          String orgIdValue = routeContext.getNodeInstance().getNodeState(OrganizationDynamicNode.NODE_STATE_ORG_ID_KEY).getValue();
          if (StringUtils.isBlank(orgIdValue)) {
              throw new RuntimeException("Cannot find valid organization ID in Route Node Instance Node States");
          }
          if (LOG.isDebugEnabled()) {
              LOG.debug("orgIdValue = '" + orgIdValue + "'");
          }
  
          try {
              List<Map<String,String>> attributeSets = new ArrayList<Map<String,String>>();
              // find the OrgOrgRelationInfo objects associated with the org from the route node instance
              List<OrgOrgRelationInfo> orgRelationInfos = getOrganizationService().getOrgOrgRelationsByOrg(orgIdValue, ContextUtils.getContextInfo());
              for (OrgOrgRelationInfo orgOrgRelationInfo : orgRelationInfos) {
                  // check that the relationship is active
                  if (StringUtils.equals("Active", orgOrgRelationInfo.getStateKey())) {
                      // check for the proper relationship type
                      if (StringUtils.equals(AbstractOrganizationServiceQualifierResolver.KUALI_ORG_TYPE_CURRICULUM_PARENT, orgOrgRelationInfo.getTypeKey())) {
                          OrgInfo nextNodeOrgInfo = getOrganization(orgOrgRelationInfo.getRelatedOrgId());
                          // check the org type of the related org is the proper org type
                          if (StringUtils.equals(AbstractOrganizationServiceQualifierResolver.KUALI_ORG_COC, nextNodeOrgInfo.getTypeKey())) {
                              if (LOG.isDebugEnabled()) {
                                  LOG.debug("---- Related Org Relation: " + nextNodeOrgInfo.getId() + " - " + nextNodeOrgInfo.getShortName() + " (" + nextNodeOrgInfo.getLongName() + ")");
                              }
                              Map<String,String> attributeSet = new LinkedHashMap<String,String>();
                              attributeSet.put(KualiStudentKimAttributes.QUALIFICATION_ORG_ID, nextNodeOrgInfo.getId());
                              attributeSets.add(attributeSet);
                          }
                      }
                  }
              }
              // if no org is found then use the org on the route node instance
              if (attributeSets.isEmpty()) {
                  OrgInfo currentNodeOrg = getOrganization(orgIdValue);
                  Map<String,String> attributeSet = new LinkedHashMap<String,String>();
                  attributeSet.put(KualiStudentKimAttributes.QUALIFICATION_ORG_ID, currentNodeOrg.getId());
                  attributeSets.add(attributeSet);
              }
              return attributeSets;
          } catch (Exception e) {
              LOG.error("Error getting organization(s) or organization relations", e);
              throw new RuntimeException(e);
          }
      }
  
      protected OrgInfo getOrganization(String orgId) throws Exception {
  //        try {
          	OrgInfo orgInfo = getOrganizationService().getOrg(orgId, null);
              return orgInfo;
  //        } catch (DoesNotExistException e) {
  //            LOG.error("No valid organization found for id '" + orgId + "'", e);
  //            throw e;
  //        }
      }
  
  }