package org.kuali.student.enrollment.class2.courseoffering.service.assembler;

 import org.kuali.student.enrollment.class2.courseoffering.service.transformer.ActivityOfferingTransformer;

 import org.kuali.student.enrollment.courseoffering.dto.ActivityOfferingInfo;

 import org.kuali.student.enrollment.courseoffering.dto.OfferingInstructorInfo;

 import org.kuali.student.enrollment.lpr.dto.LuiPersonRelationInfo;

 import org.kuali.student.enrollment.lpr.service.LuiPersonRelationService;

 import org.kuali.student.enrollment.lui.dto.LuiInfo;

 import org.kuali.student.r2.common.assembler.AssemblyException;

 import org.kuali.student.r2.common.assembler.DTOAssembler;

 import org.kuali.student.r2.common.dto.ContextInfo;

 import org.kuali.student.r2.common.exceptions.*;

 import org.kuali.student.r2.common.util.constants.LuiPersonRelationServiceConstants;

 import java.util.ArrayList;

 import java.util.List;

 public class ActivityOfferingAssembler implements DTOAssembler<ActivityOfferingInfo, LuiInfo> {

     private LuiPersonRelationService lprService;

     private ActivityOfferingTransformer activityTransformer;

     public ActivityOfferingTransformer getActivityTransformer() {

         return activityTransformer;

     }

     public void setActivityTransformer(ActivityOfferingTransformer activityTransformer) {

         this.activityTransformer = activityTransformer;

     }

     public LuiPersonRelationService getLprService() {

         return lprService;

     }

     public void setLprService(LuiPersonRelationService lprService) {

         this.lprService = lprService;

     }

     @Override

     public ActivityOfferingInfo assemble(LuiInfo lui, ContextInfo context) throws AssemblyException {

         ActivityOfferingInfo ao = activityTransformer.transform(lui);

         assembleInstructors(ao, lui.getId(), context);

         return ao;

     }

     private void assembleInstructors(ActivityOfferingInfo ao, String luiId, ContextInfo context) throws AssemblyException {

         List<LuiPersonRelationInfo> lprs = null;

         ;

         try {

             lprs = lprService.getLprsByLui(luiId, context);

         } catch (DoesNotExistException e) {

             throw new AssemblyException("DoesNotExistException: " + e.getMessage());

         } catch (InvalidParameterException e) {

             throw new AssemblyException("InvalidParameterException: " + e.getMessage());

         } catch (MissingParameterException e) {

             throw new AssemblyException("MissingParameterException: " + e.getMessage());

         } catch (OperationFailedException e) {

             throw new AssemblyException("OperationFailedException: " + e.getMessage());

         } catch (PermissionDeniedException e) {

             throw new AssemblyException("PermissionDeniedException: " + e.getMessage());

         }

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

             List<OfferingInstructorInfo> instructors = new ArrayList<OfferingInstructorInfo>();

             for (LuiPersonRelationInfo lpr : lprs) {

                 if (lpr != null && lpr.getTypeKey() != null && lpr.getTypeKey().equals(LuiPersonRelationServiceConstants.INSTRUCTOR_MAIN_TYPE_KEY)) {

                     instructors.add( activityTransformer.transformInstructorForActivityOffering(lpr));

                 }

             }

             ao.setInstructors(instructors);

         }

     }

     @Override

     public LuiInfo disassemble(ActivityOfferingInfo ao, ContextInfo context) throws AssemblyException {

         LuiInfo lui = activityTransformer.transformActivityOfferingToLui(ao);

         return lui;

     }

 }