package org.kuali.student.r2.core.process.service.decorators;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.student.r2.common.datadictionary.DataDictionaryValidator;

 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.common.infc.HoldsValidator;

 import org.kuali.student.r2.core.process.dao.InstructionDao;

 import org.kuali.student.r2.core.process.dto.CheckInfo;

 import org.kuali.student.r2.core.process.dto.InstructionInfo;

 import org.kuali.student.r2.core.process.dto.ProcessCategoryInfo;

 import org.kuali.student.r2.core.process.dto.ProcessInfo;

 import org.kuali.student.r2.core.process.service.ProcessServiceDecorator;

 import java.util.ArrayList;

 import java.util.List;

 public class ProcessServiceValidationDecorator extends ProcessServiceDecorator implements HoldsValidator{

     private DataDictionaryValidator validator;

     private InstructionDao instructionDao;

     @Override

     public DataDictionaryValidator getValidator() {

         return validator;

     }

     @Override

     public void setValidator(DataDictionaryValidator validator) {

         this.validator = validator;

     }

     @Override

     public List<ValidationResultInfo> validateProcessCategory(String validationTypeKey, ProcessCategoryInfo processCategoryInfo, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == validationTypeKey) {

             throw new MissingParameterException("validationTypeKey");

         }

         if (null == processCategoryInfo) {

             throw new MissingParameterException("processCategoryInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         List<ValidationResultInfo> errors;

         errors = new ArrayList<ValidationResultInfo>(); // TODO remove

 /*  TODO Need to add dictionary entry

         errors = ValidationUtils.validateInfo(validator, validationTypeKey, processCategoryInfo, contextInfo);

         List<ValidationResultInfo> nextDecoratorErrors = getNextDecorator().validateProcessCategory(validationTypeKey, processCategoryInfo, contextInfo);

         if (null != nextDecoratorErrors) {

             errors.addAll(nextDecoratorErrors);

         }

 */

         return errors;

     }

     @Override

     public ProcessCategoryInfo createProcessCategory(ProcessCategoryInfo processCategoryInfo, ContextInfo contextInfo) throws AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException {

         if (null == processCategoryInfo) {

             throw new MissingParameterException("processCategoryInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         if (null != processCategoryInfo.getId()) {

             throw new ReadOnlyException("Id is not allowed to be supplied on a create");

         }

         if (null != processCategoryInfo.getMeta()) {

             throw new ReadOnlyException("MetaInfo is not allowed to be supplied on a create");

         }

         // TODO check for existing

         _processCategoryFullValidation(processCategoryInfo, contextInfo);

         return getNextDecorator().createProcessCategory(processCategoryInfo, contextInfo);

     }

     @Override

     public StatusInfo addProcessToProcessCategory(String processKey, String processCategoryId, ContextInfo contextInfo) throws AlreadyExistsException, DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == processKey) {

             throw new MissingParameterException("processKey");

         }

         if (null == processCategoryId) {

             throw new MissingParameterException("processCategoryId");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         return getNextDecorator().addProcessToProcessCategory(processKey, processCategoryId, contextInfo);

     }

     @Override

     public List<ProcessInfo> getProcessesForProcessCategory(String processCategoryId, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == processCategoryId) {

             throw new MissingParameterException("processCategoryId");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         return getNextDecorator().getProcessesForProcessCategory(processCategoryId, contextInfo);

     }

     @Override

     public List<ValidationResultInfo> validateProcess(String validationTypeKey, ProcessInfo processInfo, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == validationTypeKey) {

             throw new MissingParameterException("validationTypeKey");

         }

         if (null == processInfo) {

             throw new MissingParameterException("processInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         List<ValidationResultInfo> errors;

         errors = new ArrayList<ValidationResultInfo>(); // TODO remove

 /*  TODO Need to add dictionary entry

         errors = ValidationUtils.validateInfo(validator, validationTypeKey, processInfo, contextInfo);

         List<ValidationResultInfo> nextDecoratorErrors = getNextDecorator().validateProcess(validationTypeKey, processInfo, contextInfo);

         if (null != nextDecoratorErrors) {

             errors.addAll(nextDecoratorErrors);

         }

 */

         return errors;

     }

     @Override

     public ProcessInfo createProcess(String processKey, ProcessInfo processInfo, ContextInfo contextInfo) throws AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException {

         if (null == processKey) {

             throw new MissingParameterException("processKey");

         }

         if (null == processInfo) {

             throw new MissingParameterException("processInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         if (null != processInfo.getKey() && !processKey.equals(processInfo.getKey())) {

             throw new InvalidParameterException("Process key different than supplied processKey");

         }

         if (null != processInfo.getMeta()) {

             throw new ReadOnlyException("MetaInfo is not allowed to be supplied on a create");

         }

         // TODO check for existing

         _processFullValidation(processInfo, contextInfo);

         return getNextDecorator().createProcess(processKey, processInfo, contextInfo);

     }

     @Override

     public List<ValidationResultInfo> validateCheck(String validationTypeKey, CheckInfo checkInfo, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == validationTypeKey) {

             throw new MissingParameterException("validationTypeKey");

         }

         if (null == checkInfo) {

             throw new MissingParameterException("checkInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         List<ValidationResultInfo> errors;

         errors = new ArrayList<ValidationResultInfo>(); // TODO remove

 /* TODO populate dictionary entry

         errors = ValidationUtils.validateInfo(validator, validationTypeKey, checkInfo, contextInfo);

         List<ValidationResultInfo> nextDecoratorErrors = getNextDecorator().validateCheck(validationTypeKey, checkInfo, contextInfo);

         if (null != nextDecoratorErrors) {

             errors.addAll(nextDecoratorErrors);

         }

 */

         return errors;

     }

     @Override

     public CheckInfo createCheck(String checkKey, CheckInfo checkInfo, ContextInfo contextInfo) throws AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException {

         if (null == checkKey) {

             throw new MissingParameterException("checkKey");

         }

         if (null == checkInfo) {

             throw new MissingParameterException("checkInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         if (StringUtils.isBlank(checkInfo.getTypeKey())){

             throw new InvalidParameterException("Check typeKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getStateKey())){

             throw new InvalidParameterException("Check stateKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getMilestoneTypeKey())){

             throw new InvalidParameterException("Check milestoneTypeKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getIssueKey())){

             throw new InvalidParameterException("Check issueKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getAgendaId())){

             throw new InvalidParameterException("Check agendaId is required");

         }

         if (StringUtils.isBlank(checkInfo.getTypeKey())){

             throw new InvalidParameterException("Check typeKey is required");

         }

         if (null != checkInfo.getKey() && !checkKey.equals(checkInfo.getKey())) {

             throw new InvalidParameterException("Check key different than supplied checkKey");

         }

         if (null != checkInfo.getMeta()) {

             throw new ReadOnlyException("MetaInfo is not allowed to be supplied on a create");

         }

         // TODO check for existing

         _checkFullValidation(checkInfo, contextInfo);

         return getNextDecorator().createCheck(checkKey, checkInfo, contextInfo);

     }

     @Override

     public CheckInfo updateCheck(String checkKey, CheckInfo checkInfo, ContextInfo contextInfo) throws DataValidationErrorException, DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException, VersionMismatchException {

         if (null == checkKey) {

             throw new MissingParameterException("checkKey");

         }

         if (null == checkInfo) {

             throw new MissingParameterException("checkInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         if (StringUtils.isBlank(checkInfo.getTypeKey())){

             throw new InvalidParameterException("Check typeKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getStateKey())){

             throw new InvalidParameterException("Check stateKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getMilestoneTypeKey())){

             throw new InvalidParameterException("Check milestoneTypeKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getIssueKey())){

             throw new InvalidParameterException("Check issueKey is required");

         }

         if (StringUtils.isBlank(checkInfo.getAgendaId())){

             throw new InvalidParameterException("Check agendaId is required");

         }

         if (StringUtils.isBlank(checkInfo.getTypeKey())){

             throw new InvalidParameterException("Check typeKey is required");

         }

         if (null != checkInfo.getKey() && !checkKey.equals(checkInfo.getKey())) {

             throw new InvalidParameterException("Check key different than supplied checkKey");

         }

         return getNextDecorator().updateCheck(checkKey, checkInfo, contextInfo);

     }

     @Override

     public StatusInfo deleteCheck(String checkKey, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == checkKey) {

             throw new MissingParameterException("checkKey");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         return getNextDecorator().deleteCheck(checkKey, contextInfo);

     }

     @Override

     public List<InstructionInfo> getInstructionsByProcess(String processKey, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == processKey) {

             throw new MissingParameterException("processKey");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         return getNextDecorator().getInstructionsByProcess(processKey, contextInfo);

     }

     @Override

     public List<ValidationResultInfo> validateInstruction(String validationTypeKey, String processKey, String checkKey, InstructionInfo instructionInfo, ContextInfo contextInfo) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == validationTypeKey) {

             throw new MissingParameterException("validationTypeKey");

         }

         if (null == processKey) {

             throw new MissingParameterException("processKey");

         }

         if (null == checkKey) {

             throw new MissingParameterException("checkKey");

         }

         if (null == instructionInfo) {

             throw new MissingParameterException("instructionInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         List<ValidationResultInfo> errors;

         errors = new ArrayList<ValidationResultInfo>(); // TODO remove

 /*  TODO Need to add dictionary entry

         errors = ValidationUtils.validateInfo(validator, validationTypeKey, instructionInfo, contextInfo);

         List<ValidationResultInfo> nextDecoratorErrors = getNextDecorator().validateInstruction(validationTypeKey, processKey, checkKey, instructionInfo, contextInfo);

         if (null != nextDecoratorErrors) {

             errors.addAll(nextDecoratorErrors);

         }

 */

         return errors;

     }

     @Override

     public InstructionInfo createInstruction(String processKey, String checkKey, InstructionInfo instructionInfo, ContextInfo contextInfo) throws DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException {

         if (null == processKey) {

             throw new MissingParameterException("processKey");

         }

         if (null == checkKey) {

             throw new MissingParameterException("checkKey");

         }

         if (null == instructionInfo) {

             throw new MissingParameterException("instructionInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         if (null != instructionInfo.getId()) {

             throw new ReadOnlyException("Id is not allowed to be supplied on a create");

         }

         if (null != instructionInfo.getMeta()) {

             throw new ReadOnlyException("MetaInfo is not allowed to be supplied on a create");

         }

         if (null != instructionInfo.getProcessKey() && !processKey.equals(instructionInfo.getProcessKey())) {

             throw new InvalidParameterException("Instruction processKey different than supplied processKey");

         }

         if (null != instructionInfo.getCheckKey() && !checkKey.equals(instructionInfo.getCheckKey())) {

             throw new InvalidParameterException("Instruction checkKey different than supplied checkKey");

         }

         if (StringUtils.isBlank(instructionInfo.getTypeKey())){

             throw new InvalidParameterException("Instruction typeKey is required");

         }

         if (StringUtils.isBlank(instructionInfo.getStateKey())){

             throw new InvalidParameterException("Instruction stateKey is required");

         }

         if (null == instructionInfo.getAppliedAtpTypeKeys() || instructionInfo.getAppliedAtpTypeKeys().isEmpty()){

             throw new InvalidParameterException("Instruction appliedAtpTypeKeys is required");

         }

         _instructionFullValidation(processKey, checkKey, instructionInfo, contextInfo);

         return getNextDecorator().createInstruction(processKey, checkKey, instructionInfo, contextInfo);

     }

     @Override

     public InstructionInfo updateInstruction(String instructionId, InstructionInfo instructionInfo, ContextInfo contextInfo) throws DataValidationErrorException, DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, ReadOnlyException, VersionMismatchException {

         if (null == instructionId) {

             throw new MissingParameterException("instructionId");

         }

         if (null == instructionInfo) {

             throw new MissingParameterException("instructionInfo");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         if (null != instructionInfo.getId() && !instructionId.equals(instructionInfo.getId())) {

             throw new InvalidParameterException("Instruction id different than supplied instructionId");

         }

         if (StringUtils.isBlank(instructionInfo.getProcessKey())) {

             throw new InvalidParameterException("Instruction processKey is required");

         }

         if (StringUtils.isBlank(instructionInfo.getCheckKey())) {

             throw new InvalidParameterException("Instruction checkKey is required");

         }

         if (StringUtils.isBlank(instructionInfo.getTypeKey())){

             throw new InvalidParameterException("Instruction typeKey is required");

         }

         if (StringUtils.isBlank(instructionInfo.getStateKey())){

             throw new InvalidParameterException("Instruction stateKey is required");

         }

         if (null == instructionInfo.getAppliedAtpTypeKeys() || instructionInfo.getAppliedAtpTypeKeys().isEmpty()){

             throw new InvalidParameterException("Instruction appliedAtpTypeKeys is required");

         }

         return getNextDecorator().updateInstruction(instructionId, instructionInfo, contextInfo);

     }

     @Override

     public List<InstructionInfo> getInstructionsForEvaluation(String processKey, ContextInfo contextInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         if (null == processKey) {

             throw new MissingParameterException("processKey");

         }

         if (null == contextInfo) {

             throw new MissingParameterException("contextInfo");

         }

         return getNextDecorator().getInstructionsForEvaluation(processKey, contextInfo);

     }

     private void _processCategoryFullValidation(ProcessCategoryInfo processCategoryInfo, ContextInfo context) throws DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         try {

             List<ValidationResultInfo> errors = this.validateProcessCategory(DataDictionaryValidator.ValidationType.FULL_VALIDATION.toString(), processCategoryInfo, context);

             if (!errors.isEmpty()) {

                 throw new DataValidationErrorException("Error(s) validating process Category", errors);

             }

         } catch (DoesNotExistException ex) {

             throw new OperationFailedException("Error validating process Category", ex);

         }

     }

     private void _processFullValidation(ProcessInfo processInfo, ContextInfo context) throws DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         try {

             List<ValidationResultInfo> errors = this.validateProcess(DataDictionaryValidator.ValidationType.FULL_VALIDATION.toString(), processInfo, context);

             if (!errors.isEmpty()) {

                 throw new DataValidationErrorException("Error(s) validating Process", errors);

             }

         } catch (DoesNotExistException ex) {

             throw new OperationFailedException("Error validating Process", ex);

         }

     }

     private void _checkFullValidation(CheckInfo checkInfo, ContextInfo context) throws DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         try {

             List<ValidationResultInfo> errors = this.validateCheck(DataDictionaryValidator.ValidationType.FULL_VALIDATION.toString(), checkInfo, context);

             if (!errors.isEmpty()) {

                 throw new DataValidationErrorException("Error(s) validating Check", errors);

             }

         } catch (DoesNotExistException ex) {

             throw new OperationFailedException("Error validating Check", ex);

         }

     }

     private void _instructionFullValidation(String processKey, String checkKey, InstructionInfo instructionInfo, ContextInfo context) throws DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         try {

             List<ValidationResultInfo> errors = this.validateInstruction(DataDictionaryValidator.ValidationType.FULL_VALIDATION.toString(), processKey, checkKey, instructionInfo, context);

             if (!errors.isEmpty()) {

                 throw new DataValidationErrorException("Error(s) validating Instruction", errors);

             }

         } catch (DoesNotExistException ex) {

             throw new OperationFailedException("Error validating Instruction", ex);

         }

     }

 }