/**

  * Copyright 2010 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.osedu.org/licenses/ECL-2.0

  *

  * 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.student.lum.program.server;

 import java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 import org.kuali.student.common.ui.client.widgets.rules.ReqComponentInfoUi;

 import org.kuali.student.common.ui.server.gwt.BaseRpcGwtServletAbstract;

 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.versionmanagement.dto.VersionDisplayInfo;

 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 com.google.gwt.user.client.rpc.AsyncCallback;

 import org.apache.log4j.Logger;

 public class StatementRpcServlet extends BaseRpcGwtServletAbstract<LuService> implements StatementRpcService {

     final static Logger LOG = Logger.getLogger(StatementRpcServlet.class);

     private StatementService statementService;

     private LuService luService;

     private static final long serialVersionUID = 822326113643828855L;

     public List<StatementTypeInfo> getStatementTypesForStatementTypeForCourse(String statementTypeKey) throws Exception {

         String[] desiredSequenceEnrollmentElig = {"kuali.statement.type.course.academicReadiness.studentEligibilityPrereq",

                                                     "kuali.statement.type.course.academicReadiness.coreq",

                                                     "kuali.statement.type.course.recommendedPreparation",

                                                     "kuali.statement.type.course.academicReadiness.antireq"};

         String[] desiredSequenceCreditConstraints = {"kuali.statement.type.course.credit.restriction",

                                                         "kuali.statement.type.course.credit.repeatable"};        

         List<StatementTypeInfo> statementTypesSorted = new ArrayList<StatementTypeInfo>();

         List<String> statementTypeNames = statementService.getStatementTypesForStatementType(statementTypeKey);

         for (String statementTypeName : statementTypeNames) {

             StatementTypeInfo stmtInfo = statementService.getStatementType(statementTypeName);

             statementTypesSorted.add(statementService.getStatementType(statementTypeName));

             //true if we found sub statement type

             List<String> subStmtInfos = stmtInfo.getAllowedStatementTypes();

             List<StatementTypeInfo> statementTypesOrig = new ArrayList<StatementTypeInfo>();

             if ((subStmtInfos != null) && !subStmtInfos.isEmpty()) {

                 List<String> subStatementTypeNames = statementService.getStatementTypesForStatementType(statementTypeName);

                 for (String subStatementTypeName : subStatementTypeNames) {

                     statementTypesOrig.add(statementService.getStatementType(subStatementTypeName));

                 }

                 if (statementTypeName.contains("kuali.statement.type.course.enrollmentEligibility")) {

                     for (String stmtType : desiredSequenceEnrollmentElig) {

                         Iterator<StatementTypeInfo> iter = statementTypesOrig.iterator();

                         while (iter.hasNext()) {

                             StatementTypeInfo stmtT = iter.next();

                             if (stmtT.getId().equals(stmtType)) {

                                 statementTypesSorted.add(stmtT);

                                 break;

                             }

                         }

                     }

                 }

                 if (statementTypeName.contains("kuali.statement.type.course.creditConstraints")) {

                     for (String stmtType : desiredSequenceCreditConstraints) {

                         Iterator<StatementTypeInfo> iter = statementTypesOrig.iterator();

                         while (iter.hasNext()) {

                             StatementTypeInfo stmtT = iter.next();

                             if (stmtT.getId().equals(stmtType)) {

                                 statementTypesSorted.add(stmtT);

                                 break;

                             }

                         }

                     }

                 }

             }            

         }

         return statementTypesSorted;

     }

     @Override

     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;

     }

     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

     public String translateStatementTreeViewToNL(StatementTreeViewInfo statementTreeViewInfo, String nlUsageTypeKey, String language) throws Exception {

         return statementService.translateStatementTreeViewToNL(statementTreeViewInfo, nlUsageTypeKey, language);

     }

     @Override

     public String translateReqComponentToNL(ReqComponentInfo reqComponentInfo, String nlUsageTypeKey, String language) throws Exception {

         return statementService.translateReqComponentToNL(reqComponentInfo, nlUsageTypeKey, language);

     }

     @Override

     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

     public CluInfo getClu(String cluId) throws Exception {

         return luService.getClu(cluId);

     }

     @Override

     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;

     }

 }