package org.kuali.student.r2.core.class1.state.service.impl;

 import java.util.ArrayList;

 import java.util.List;

 import javax.jws.WebParam;

 import javax.jws.WebService;

 import javax.persistence.NoResultException;

 import org.kuali.rice.core.api.criteria.GenericQueryResults;

 import org.kuali.rice.core.api.criteria.QueryByCriteria;

 import org.kuali.student.r2.common.criteria.CriteriaLookupService;

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

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

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

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

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

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

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

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

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

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

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

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

 import org.kuali.student.r2.core.class1.state.dao.LifecycleDao;

 import org.kuali.student.r2.core.class1.state.dao.StateDao;

 import org.kuali.student.r2.core.class1.state.model.LifecycleEntity;

 import org.kuali.student.r2.core.class1.state.model.StateEntity;

 import org.kuali.student.r2.core.state.dto.LifecycleInfo;

 import org.kuali.student.r2.core.state.dto.StateInfo;

 import org.kuali.student.r2.core.state.service.StateService;

 import org.springframework.transaction.annotation.Transactional;

 @WebService(name = "StateService", serviceName = "StateService", portName = "StateService", targetNamespace = "http://student.kuali.org/wsdl/state")

 @Transactional(readOnly = true, noRollbackFor = {DoesNotExistException.class}, rollbackFor = {Throwable.class})

 public class StateServiceImpl implements StateService {

     private StateDao stateDao;

     private LifecycleDao lifecycleDao;

     private CriteriaLookupService criteriaLookupService;

     public StateDao getStateDao() {

         return stateDao;

     }

     public void setStateDao(StateDao stateDao) {

         this.stateDao = stateDao;

     }

     public LifecycleDao getLifecycleDao() {

         return lifecycleDao;

     }

     public void setLifecycleDao(LifecycleDao lifecycleDao) {

         this.lifecycleDao = lifecycleDao;

     }

     public CriteriaLookupService getCriteriaLookupService() {

         return criteriaLookupService;

     }

     public void setCriteriaLookupService(CriteriaLookupService criteriaLookupService) {

         this.criteriaLookupService = criteriaLookupService;

     }

     @Override

     public LifecycleInfo getLifecycle(String lifecycleKey, ContextInfo context) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException {

         try {

             LifecycleEntity sp = lifecycleDao.getProcessByKey(lifecycleKey);

             if (null == sp) {

                 throw new DoesNotExistException(lifecycleKey);

             }

             return sp.toDto();

         } catch (NoResultException ex) {

             throw new DoesNotExistException(lifecycleKey);

         }

     }

     @Override

     public StateInfo getState(String stateKey, ContextInfo context)

             throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException {

         try {

             StateEntity state = stateDao.getState(stateKey);

             if (null == state) {

                 throw new DoesNotExistException(stateKey);

             }

             return state.toDto();

         } catch (NoResultException ex) {

             throw new DoesNotExistException(stateKey);

         }

     }

     @Override

     public List<LifecycleInfo> getLifecyclesByKeys(List<String> lifecycleKeys, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<LifecycleEntity> lifecycles = lifecycleDao.findByIds(lifecycleKeys);

         List<LifecycleInfo> result = new ArrayList<LifecycleInfo>(lifecycles.size());

         for (int i = 0; i < lifecycles.size(); i++) {

             LifecycleEntity entity = lifecycles.get(i);

             if (entity == null) {

                 // if one of the entities from "findByIds" is returned as null,

                 // then one of the keys in the list was not found

                 throw new DoesNotExistException(lifecycleKeys.get(i));

             }

             result.add(entity.toDto());

         }

         return result;

     }

     @Override

     public List<String> getLifecycleKeysByRefObjectUri(String refObjectUri, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<LifecycleEntity> lifecycles = lifecycleDao.getLifecyclesByRefObjectUri(refObjectUri);

         List<String> result = new ArrayList<String>();

         for (LifecycleEntity entity : lifecycles) {

             if (entity != null) {

                 result.add(entity.getId());

             }

         }

         return result;

     }

     @Override

     public List<String> searchForLifecycleKeys(QueryByCriteria criteria, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<String> lifecycleKeys = new ArrayList<String>();

         GenericQueryResults<LifecycleEntity> results = criteriaLookupService.lookup(LifecycleEntity.class, criteria);

         if (null != results && results.getResults().size() > 0) {

             for (LifecycleEntity lifecycle : results.getResults()) {

                 lifecycleKeys.add(lifecycle.getId());

             }

         }

         return lifecycleKeys;

     }

     @Override

     public List<LifecycleInfo> searchForLifecycles(QueryByCriteria criteria, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<LifecycleInfo> lifecycleInfos = new ArrayList<LifecycleInfo>();

         GenericQueryResults<LifecycleEntity> results = criteriaLookupService.lookup(LifecycleEntity.class, criteria);

         if (null != results && results.getResults().size() > 0) {

             for (LifecycleEntity lifecycle : results.getResults()) {

                 lifecycleInfos.add(lifecycle.toDto());

             }

         }

         return lifecycleInfos;

     }

     @Override

     public List<ValidationResultInfo> validateLifecycle(String validationTypeKey, LifecycleInfo lifecycleInfo, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         return new ArrayList<ValidationResultInfo>();

     }

     @Override

     @Transactional

     public LifecycleInfo createLifecycle(String lifecycleKey, LifecycleInfo lifecycleInfo, ContextInfo contextInfo)

             throws AlreadyExistsException, DataValidationErrorException, InvalidParameterException,

             MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException {

         LifecycleEntity entity = lifecycleDao.find(lifecycleKey);

         if (entity != null) {

             throw new AlreadyExistsException(lifecycleKey);

         }

         if (!lifecycleKey.equals(lifecycleInfo.getKey())) {

             throw new InvalidParameterException(lifecycleKey + " does not match the key in the info object " + lifecycleInfo.getKey());

         }

         entity = new LifecycleEntity(lifecycleInfo);

         entity.setId(lifecycleKey);

         entity.setEntityCreated(contextInfo);

         lifecycleDao.persist(entity);

         return entity.toDto();

     }

     @Override

     @Transactional

     public LifecycleInfo updateLifecycle(String lifecycleKey, LifecycleInfo lifecycleInfo, ContextInfo contextInfo)

             throws DataValidationErrorException, DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException, VersionMismatchException {

         LifecycleEntity entity = lifecycleDao.find(lifecycleKey);

         if (entity == null) {

             throw new DoesNotExistException(lifecycleKey);

         }

         entity.fromDto(lifecycleInfo);

         entity.setEntityUpdated(contextInfo);

         lifecycleDao.merge(entity);

         return entity.toDto();

     }

     @Override

     @Transactional

     public StatusInfo deleteLifecycle(String lifecycleKey, ContextInfo contextInfo)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException, PermissionDeniedException {

         LifecycleEntity lifecycle = lifecycleDao.find(lifecycleKey);

         if (lifecycle == null) {

             throw new DoesNotExistException(lifecycleKey);

         }

         lifecycleDao.remove(lifecycle);

         StatusInfo status = new StatusInfo();

         status.setSuccess(Boolean.TRUE);

         return status;

     }

     @Override

     public List<StateInfo> getStatesByKeys(List<String> stateKeys, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<StateEntity> list = stateDao.findByIds(stateKeys);

         List<StateInfo> result = new ArrayList<StateInfo>(list.size());

         for (int i = 0; i < list.size(); i++) {

             StateEntity entity = list.get(i);

             if (entity == null) {

                 // if one of the entities from "findByIds" is returned as null,

                 // then one of the keys in the list was not found

                 throw new DoesNotExistException(stateKeys.get(i));

             }

             result.add(entity.toDto());

         }

         return result;

     }

     @Override

     public List<StateInfo> getStatesByLifecycle(String lifecycleKey, ContextInfo contextInfo)

             throws DoesNotExistException, InvalidParameterException, MissingParameterException,

             OperationFailedException, PermissionDeniedException {

         // check that the key is valid

         this.getLifecycle(lifecycleKey, contextInfo);

         List<StateEntity> entities = null;

         entities = stateDao.getStatesByLifecycle(lifecycleKey);

         List<StateInfo> infos = new ArrayList<StateInfo>();

         for (StateEntity state : entities) {

             infos.add(state.toDto());

         }

         return infos;

     }

     @Override

     public List<String> searchForStateKeys(QueryByCriteria criteria, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<String> stateKeys = new ArrayList<String>();

         GenericQueryResults<StateEntity> results = criteriaLookupService.lookup(StateEntity.class, criteria);

         if (null != results && results.getResults().size() > 0) {

             for (StateEntity state : results.getResults()) {

                 stateKeys.add(state.getId());

             }

         }

         return stateKeys;

     }

     @Override

     public List<StateInfo> searchForStates(QueryByCriteria criteria, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         List<StateInfo> stateInfos = new ArrayList<StateInfo>();

         GenericQueryResults<StateEntity> results = criteriaLookupService.lookup(StateEntity.class, criteria);

         if (null != results && results.getResults().size() > 0) {

             for (StateEntity state : results.getResults()) {

                 stateInfos.add(state.toDto());

             }

         }

         return stateInfos;

     }

     @Override

     public List<ValidationResultInfo> validateState(String validationTypeKey, String lifecycleKey, StateInfo stateInfo, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         return new ArrayList<ValidationResultInfo>();

     }

     @Override

     @Transactional

     public StateInfo createState(String lifecycleKey, String stateKey, StateInfo stateInfo, ContextInfo contextInfo) throws AlreadyExistsException, DataValidationErrorException, DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException {

         StateEntity entity = stateDao.find(stateKey);

         if (entity != null) {

             throw new AlreadyExistsException(stateKey);

         }

         if (!lifecycleKey.equals(stateInfo.getLifecycleKey())) {

             throw new InvalidParameterException(lifecycleKey + " life cycle key does not match the key in the info object " + stateInfo.getLifecycleKey());

         }

         if (!stateKey.equals(stateInfo.getKey())) {

             throw new InvalidParameterException(stateKey + " state key does not match the key in the info object " + stateInfo.getKey());

         }

         entity = new StateEntity(stateInfo);

         entity.setId(stateKey);

         entity.setLifecycleKey(lifecycleKey);

         entity.setEntityCreated(contextInfo);

         stateDao.persist(entity);

         return entity.toDto();

     }

     @Override

     @Transactional

     public StateInfo updateState(String stateKey, StateInfo stateInfo, ContextInfo contextInfo)

             throws DataValidationErrorException, DoesNotExistException, 

             InvalidParameterException, MissingParameterException, OperationFailedException, 

             PermissionDeniedException, ReadOnlyException, VersionMismatchException {

         StateEntity entity = stateDao.find(stateKey);

         if (entity == null) {

             throw new DoesNotExistException(stateKey);

         }

         entity.fromDto(stateInfo);

         entity.setEntityUpdated(contextInfo);

         stateDao.merge(entity);

         return entity.toDto();

     }

     @Override

     @Transactional

     public StatusInfo deleteState(String stateKey, ContextInfo contextInfo) 

             throws DoesNotExistException, InvalidParameterException, MissingParameterException, 

             OperationFailedException, PermissionDeniedException {

         StateEntity entity = stateDao.find(stateKey);

         if (entity == null) {

             throw new DoesNotExistException(stateKey);

         }

         stateDao.remove(entity);

         StatusInfo deleteStatus = new StatusInfo();

         deleteStatus.setSuccess(true);

         return deleteStatus;

     }

 }