package org.kuali.student.lum.program.server;
   
   import java.util.ArrayList;
   import java.util.List;
   
   import org.apache.log4j.Logger;
   import org.kuali.student.common.dictionary.old.dto.ObjectStructure;
   import org.kuali.student.common.exceptions.DoesNotExistException;
   import org.kuali.student.common.search.dto.SearchCriteriaTypeInfo;
  import org.kuali.student.common.search.dto.SearchRequest;
  import org.kuali.student.common.search.dto.SearchResult;
  import org.kuali.student.common.search.dto.SearchResultTypeInfo;
  import org.kuali.student.common.search.dto.SearchTypeInfo;
  import org.kuali.student.common.versionmanagement.dto.VersionDisplayInfo;
  import org.kuali.student.core.statement.dto.ReqComponentInfo;
  import org.kuali.student.core.statement.dto.ReqComponentTypeInfo;
  import org.kuali.student.core.statement.dto.StatementTreeViewInfo;
  import org.kuali.student.core.statement.dto.StatementTypeInfo;
  import org.kuali.student.core.statement.service.StatementService;
  import org.kuali.student.core.statement.ui.client.widgets.rules.ReqComponentInfoUi;
  import org.kuali.student.lum.lu.dto.CluInfo;
  import org.kuali.student.lum.lu.service.LuService;
  import org.kuali.student.lum.program.client.rpc.StatementRpcService;
  import org.springframework.transaction.annotation.Transactional;
  
  public class StatementDataService implements StatementRpcService{
  	final static Logger LOG = Logger.getLogger(StatementDataService.class);
      
      
      private StatementService statementService;
      private LuService luService;
      
      private static final long serialVersionUID = 822326113643828855L;
      @Override
      @Transactional(readOnly=true)
      public List<StatementTypeInfo> getStatementTypesForStatementTypeForCourse(String statementTypeKey) throws Exception {
      
          List<StatementTypeInfo> allStatementTypes = new ArrayList<StatementTypeInfo>();
  
          List<String> topStatementTypes = statementService.getStatementTypesForStatementType(statementTypeKey);
  
          // loop through top statement types like enrollment eligibility and credit constraints
          for (String topStatementType : topStatementTypes) {           
              allStatementTypes.add(statementService.getStatementType(topStatementType));
              List<String> subStatementTypeNames = statementService.getStatementTypesForStatementType(topStatementType);
  
              // loop through statement types belonging to the top statement types
              for (String subStatementTypeName : subStatementTypeNames) {
                  allStatementTypes.add(statementService.getStatementType(subStatementTypeName));
              }
          }
          
          return allStatementTypes;
      }
      
      @Override
      @Transactional(readOnly=true)
      public List<StatementTypeInfo> getStatementTypesForStatementType(String statementTypeKey) throws Exception {
          List<String> statementTypeNames = statementService.getStatementTypesForStatementType(statementTypeKey);
          List<StatementTypeInfo> statementTypes = new ArrayList<StatementTypeInfo>();
          for (String statementTypeName : statementTypeNames) {
              statementTypes.add(statementService.getStatementType(statementTypeName));
          }
          return statementTypes;
      }
      @Override
      @Transactional(readOnly=true)
      public List<ReqComponentTypeInfo> getReqComponentTypesForStatementType(String luStatementTypeKey) throws Exception {
  
          List<ReqComponentTypeInfo> reqComponentTypeInfoList;
          try { 
              reqComponentTypeInfoList = statementService.getReqComponentTypesForStatementType(luStatementTypeKey);
          } catch (Exception ex) {
              LOG.error(ex);
              throw new Exception("Unable to find Requirement Component Types based on LU Statement Type Key:" + luStatementTypeKey, ex);
          }
          
          return reqComponentTypeInfoList;
      }
  
      @Override
      @Transactional(readOnly=true)
      public String translateStatementTreeViewToNL(StatementTreeViewInfo statementTreeViewInfo, String nlUsageTypeKey, String language) throws Exception {
          return statementService.translateStatementTreeViewToNL(statementTreeViewInfo, nlUsageTypeKey, language);
      }
  
      @Override
      @Transactional(readOnly=true)
      public String translateReqComponentToNL(ReqComponentInfo reqComponentInfo, String nlUsageTypeKey, String language) throws Exception {
          return statementService.translateReqComponentToNL(reqComponentInfo, nlUsageTypeKey, language);
      }
  
      @Override
      @Transactional(readOnly=true)
      public List<String> translateReqComponentToNLs(ReqComponentInfoUi reqComponentInfo, String[] nlUsageTypeKeys, String language) throws Exception {
      	List<String> nls = new ArrayList<String>(nlUsageTypeKeys.length);
      	for (String typeKey : nlUsageTypeKeys) {
      		nls.add(statementService.translateReqComponentToNL(reqComponentInfo, typeKey, language));
      	}
     	return nls;
     }
 
     @Override
     @Transactional(readOnly=true)
     public CluInfo getClu(String cluId) throws Exception {
         return luService.getClu(cluId);
     }
 
     @Override
     @Transactional(readOnly=true)
     public VersionDisplayInfo getCurrentVersion(String refObjectTypeURI, String refObjectId) throws Exception {
         return luService.getCurrentVersion(refObjectTypeURI, refObjectId);
     }
 
     public void setStatementService(StatementService statementService) {
         this.statementService = statementService;
     }
 
     public void setLuService(LuService luService) {
         this.luService = luService;
     }
 
 	@Override
 	public List<String> getObjectTypes() {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public ObjectStructure getObjectStructure(String objectTypeKey) {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public List<SearchTypeInfo> getSearchTypes() {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public SearchTypeInfo getSearchType(String searchTypeKey) {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public List<SearchTypeInfo> getSearchTypesByResult(
 			String searchResultTypeKey) {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public List<SearchTypeInfo> getSearchTypesByCriteria(
 			String searchCriteriaTypeKey) {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public List<SearchResultTypeInfo> getSearchResultTypes() {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public SearchResultTypeInfo getSearchResultType(String searchResultTypeKey) {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public List<SearchCriteriaTypeInfo> getSearchCriteriaTypes() {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public SearchCriteriaTypeInfo getSearchCriteriaType(
 			String searchCriteriaTypeKey) {
 		throw new UnsupportedOperationException();
 	}
 
 	@Override
 	public SearchResult search(SearchRequest searchRequest) {
 		throw new UnsupportedOperationException();
 	}
 }