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package org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration;

import org.apache.commons.collections4.MapUtils;
import org.openecomp.core.utilities.file.FileContentHandler;
import org.openecomp.core.utilities.file.FileUtils;
import org.openecomp.core.utilities.orchestration.OnboardingTypesEnum;
import org.openecomp.sdc.common.errors.Messages;
import org.openecomp.sdc.common.utils.SdcCommon;
import org.openecomp.sdc.datatypes.error.ErrorLevel;
import org.openecomp.sdc.datatypes.error.ErrorMessage;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
import org.openecomp.sdc.logging.context.impl.MdcDataDebugMessage;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.VspDetails;
import org.openecomp.sdc.vendorsoftwareproduct.services.filedatastructuremodule.CandidateService;
import org.openecomp.sdc.vendorsoftwareproduct.types.UploadFileResponse;
import org.openecomp.sdc.versioning.dao.types.Version;

import java.io.InputStream;
import java.util.Optional;
import static org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder.getErrorWithParameters;
public abstract class BaseOrchestrationTemplateHandler implements OrchestrationTemplateFileHandler {
    protected static final Logger logger =
            LoggerFactory.getLogger(BaseOrchestrationTemplateHandler.class);
    protected static MdcDataDebugMessage mdcDataDebugMessage = new MdcDataDebugMessage();

    @Override
    public UploadFileResponse upload(String vspId, Version version, InputStream fileToUpload, String user,
                                     CandidateService candidateService, VspDetails vspDetails) {
        UploadFileResponse uploadFileResponse = new UploadFileResponse();
        uploadFileResponse.setOnboardingType(getHandlerType());
        if (isNotEmptyFileToUpload(fileToUpload, uploadFileResponse, candidateService)) {
            return uploadFileResponse;
        }

        byte[] uploadedFileData = FileUtils.toByteArray(fileToUpload);
        if (isInvalidRawZipData(uploadFileResponse, uploadedFileData, candidateService)) {
            return uploadFileResponse;
        }

        Optional<FileContentHandler> optionalContentMap =
                getFileContentMap(uploadFileResponse, uploadedFileData);
        if (!optionalContentMap.isPresent()) {
            logger.error(getErrorWithParameters(Messages.FILE_CONTENT_MAP.getErrorMessage(), getHandlerType().toString()));
            uploadFileResponse
                    .addStructureError(
                            SdcCommon.UPLOAD_FILE,
                            new ErrorMessage(ErrorLevel.ERROR,
                                    getErrorWithParameters(Messages.FILE_CONTENT_MAP.getErrorMessage(), getHandlerType().toString())));

            mdcDataDebugMessage.debugExitMessage("VSP id", vspId);
            return uploadFileResponse;
        }

        if (!MapUtils.isEmpty(uploadFileResponse.getErrors())) {

            mdcDataDebugMessage.debugExitMessage("VSP id", vspId);
            return uploadFileResponse;
        }
        if (updateCandidateData(vspId, user, candidateService, vspDetails, uploadFileResponse,
                uploadedFileData, optionalContentMap))
            return uploadFileResponse;

        mdcDataDebugMessage.debugExitMessage("VSP id", vspId);
        return uploadFileResponse;

    }

    protected abstract boolean updateCandidateData(String vspId, String user, CandidateService candidateService,
                                                   VspDetails vspDetails, UploadFileResponse uploadFileResponse,
                                                   byte[] uploadedFileData,
                                                   Optional<FileContentHandler> optionalContentMap);


    private boolean isNotEmptyFileToUpload(InputStream fileToUpload,
                                           UploadFileResponse uploadFileResponse, CandidateService candidateService) {
        Optional<ErrorMessage> errorMessage =
                candidateService.validateNonEmptyFileToUpload(fileToUpload);
        if (errorMessage.isPresent()) {
            uploadFileResponse.addStructureError(SdcCommon.UPLOAD_FILE, errorMessage.get());
            return true;
        }
        return false;
    }

    protected boolean isInvalidRawZipData(UploadFileResponse uploadFileResponse,
                                        byte[] uploadedFileData, CandidateService candidateService) {
        Optional<ErrorMessage> errorMessage;
        errorMessage = candidateService.validateRawZipData(uploadedFileData);
        if (errorMessage.isPresent()) {
            uploadFileResponse.addStructureError(SdcCommon.UPLOAD_FILE, errorMessage.get());
            return true;
        }
        return false;
    }

    public abstract Optional<FileContentHandler> getFileContentMap(UploadFileResponse uploadFileResponse,
                                                                   byte[] uploadedFileData);
    protected abstract OnboardingTypesEnum getHandlerType();
}