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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed under the Apache 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.apache.org/licenses/LICENSE-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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.sdcrests.vsp.rest.services;

import org.apache.commons.collections4.CollectionUtils;
import org.openecomp.sdc.vendorsoftwareproduct.ComponentManager;
import org.openecomp.sdc.vendorsoftwareproduct.ComponentManagerFactory;
import org.openecomp.sdc.vendorsoftwareproduct.ComputeManager;
import org.openecomp.sdc.vendorsoftwareproduct.ComputeManagerFactory;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.ComputeEntity;
import org.openecomp.sdc.vendorsoftwareproduct.types.CompositionEntityResponse;
import org.openecomp.sdc.vendorsoftwareproduct.types.ListComputeResponse;
import org.openecomp.sdc.vendorsoftwareproduct.types.QuestionnaireResponse;
import org.openecomp.sdc.vendorsoftwareproduct.types.composition.CompositionEntityValidationData;
import org.openecomp.sdc.vendorsoftwareproduct.types.composition.ComputeData;
import org.openecomp.sdc.versioning.dao.types.Version;
import org.openecomp.sdcrests.vendorsoftwareproducts.types.*;
import org.openecomp.sdcrests.vsp.rest.Compute;
import org.openecomp.sdcrests.vsp.rest.mapping.*;
import org.openecomp.sdcrests.wrappers.GenericCollectionWrapper;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;

import javax.inject.Named;
import javax.ws.rs.core.Response;
import java.util.Collection;

@Named
@Service("computes")
@Scope(value = "prototype")
public class ComputeImpl implements Compute {
  private ComputeManager computetManager =
      ComputeManagerFactory.getInstance().createInterface();
  private ComponentManager componentManager =
      ComponentManagerFactory.getInstance().createInterface();

  @Override
  public Response list(String vspId, String versionId, String componentId, String user) {

    Version version = new Version(versionId);
    componentManager.validateComponentExistence(vspId, version, componentId);
    Collection<ListComputeResponse> computes =
        computetManager.listComputes(vspId, version, componentId);

    MapComputeEntityToComputeDto mapper = new MapComputeEntityToComputeDto();
    GenericCollectionWrapper<ComputeDto> results = new GenericCollectionWrapper<>();
    for (ListComputeResponse compute : computes) {
      results.add(mapper.applyMapping(compute, ComputeDto.class));
    }

    return Response.ok(results).build();
  }

  @Override
  public Response get(String vspId, String versionId, String componentId, String computeId,
                      String user) {

    Version version = new Version(versionId);
    componentManager.validateComponentExistence(vspId, version, componentId);
    CompositionEntityResponse<ComputeData> response =
        computetManager.getCompute(vspId, version, componentId, computeId);

    CompositionEntityResponseDto<ComputeDetailsDto> responseDto = new
        CompositionEntityResponseDto<>();
    new MapCompositionEntityResponseToDto<>(new MapComputeDataToComputeDetailsDto(),
        ComputeDetailsDto.class).doMapping(response, responseDto);
    return Response.ok(responseDto).build();
  }

  @Override
  public Response create(ComputeDetailsDto request, String vspId, String versionId,
                         String componentId, String user) {

    ComputeEntity compute = new MapComputeDetailsDtoToComputeEntity().applyMapping(request,
        ComputeEntity.class);
    compute.setVspId(vspId);
    compute.setVersion(new Version(versionId));
    compute.setComponentId(componentId);
    componentManager.validateComponentExistence(vspId, compute.getVersion(), componentId);

    ComputeEntity createdCompute = computetManager.createCompute(compute);

    MapComputeEntityToComputeCreationDto mapper = new MapComputeEntityToComputeCreationDto();
    ComputeCreationDto createdComputeDto =
        mapper.applyMapping(createdCompute, ComputeCreationDto.class);
    return Response.ok(createdComputeDto != null ? createdComputeDto : null).build();
  }

  @Override
  public Response update(ComputeDetailsDto request, String vspId, String versionId,
                         String componentId, String computeFlavorId, String user) {

    ComputeEntity compute =
        new MapComputeDetailsDtoToComputeEntity().applyMapping(request, ComputeEntity.class);
    compute.setVspId(vspId);
    compute.setVersion(new Version(versionId));
    compute.setComponentId(componentId);
    compute.setId(computeFlavorId);

    componentManager.validateComponentExistence(vspId, compute.getVersion(), componentId);
    CompositionEntityValidationData validationData = computetManager.updateCompute(compute);
    return validationData != null && CollectionUtils.isNotEmpty(validationData.getErrors())
        ? Response.status(Response.Status.EXPECTATION_FAILED).entity(
        new MapCompositionEntityValidationDataToDto().applyMapping(validationData,
            CompositionEntityValidationDataDto.class)).build() : Response.ok().build();
  }

  @Override
  public Response delete(String vspId, String versionId, String componentId, String computeFlavorId,
                         String user) {

    Version version = new Version(versionId);
    componentManager.validateComponentExistence(vspId, version, componentId);
    computetManager.deleteCompute(vspId, version, componentId, computeFlavorId);
    return Response.ok().build();
  }

  @Override
  public Response getQuestionnaire(String vspId, String versionId, String componentId,
                                   String computeFlavorId, String user) {

    Version version = new Version(versionId);
    componentManager.validateComponentExistence(vspId, version, componentId);
    QuestionnaireResponse questionnaireResponse =
        computetManager.getComputeQuestionnaire(vspId, version, componentId, computeFlavorId);

    QuestionnaireResponseDto result = new MapQuestionnaireResponseToQuestionnaireResponseDto()
        .applyMapping(questionnaireResponse, QuestionnaireResponseDto.class);
    return Response.ok(result).build();
  }

  @Override
  public Response updateQuestionnaire(String questionnaireData, String vspId, String versionId,
                                      String componentId, String computeFlavorId, String user) {

    Version version = new Version(versionId);
    componentManager.validateComponentExistence(vspId, version, componentId);
    computetManager.updateComputeQuestionnaire(vspId, version, componentId, computeFlavorId,
        questionnaireData);
    return Response.ok().build();
  }
}