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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 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.sdc.vendorsoftwareproduct.impl;

import org.apache.commons.collections4.CollectionUtils;
import org.openecomp.sdc.common.errors.CoreException;
import org.openecomp.sdc.datatypes.error.ErrorLevel;
import org.openecomp.sdc.logging.context.impl.MdcDataDebugMessage;
import org.openecomp.sdc.logging.context.impl.MdcDataErrorMessage;
import org.openecomp.sdc.logging.types.LoggerConstants;
import org.openecomp.sdc.logging.types.LoggerErrorCode;
import org.openecomp.sdc.logging.types.LoggerTragetServiceName;
import org.openecomp.sdc.vendorsoftwareproduct.NetworkManager;
import org.openecomp.sdc.vendorsoftwareproduct.NicManager;
import org.openecomp.sdc.vendorsoftwareproduct.dao.NicDao;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.NetworkEntity;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.NicEntity;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.VspDetails;
import org.openecomp.sdc.vendorsoftwareproduct.errors.CompositionEditNotAllowedErrorBuilder;
import org.openecomp.sdc.vendorsoftwareproduct.services.composition.CompositionEntityDataManager;
import org.openecomp.sdc.vendorsoftwareproduct.services.schemagenerator.SchemaGenerator;
import org.openecomp.sdc.vendorsoftwareproduct.types.CompositionEntityResponse;
import org.openecomp.sdc.vendorsoftwareproduct.types.QuestionnaireResponse;
import org.openecomp.sdc.vendorsoftwareproduct.types.composition.CompositionEntityType;
import org.openecomp.sdc.vendorsoftwareproduct.types.composition.CompositionEntityValidationData;
import org.openecomp.sdc.vendorsoftwareproduct.types.composition.Nic;
import org.openecomp.sdc.vendorsoftwareproduct.types.schemagenerator.NicCompositionSchemaInput;
import org.openecomp.sdc.vendorsoftwareproduct.types.schemagenerator.SchemaTemplateContext;
import org.openecomp.sdc.vendorsoftwareproduct.types.schemagenerator.SchemaTemplateInput;
import org.openecomp.sdc.versioning.VersioningUtil;
import org.openecomp.sdc.versioning.dao.types.Version;

import java.util.Collection;
import java.util.Map;
import java.util.stream.Collectors;

public class NicManagerImpl implements NicManager {
  private static MdcDataDebugMessage mdcDataDebugMessage = new MdcDataDebugMessage();

  private NicDao nicDao;
  private CompositionEntityDataManager compositionEntityDataManager;
  private NetworkManager networkManager;

  public NicManagerImpl(NicDao nicDao,
                        CompositionEntityDataManager compositionEntityDataManager,
                        NetworkManager networkManager) {
    this.nicDao = nicDao;
    this.compositionEntityDataManager = compositionEntityDataManager;
    this.networkManager = networkManager;
  }

  @Override
  public Collection<NicEntity> listNics(String vspId, Version version, String componentId,
                                        String user) {
    mdcDataDebugMessage.debugEntryMessage("VSP id, component id", vspId, componentId);

    Collection<NicEntity> nics = nicDao.list(new NicEntity(vspId, version, componentId, null));

    if (!nics.isEmpty()) {
      Map<String, String> networksNameById = listNetworksNameById(vspId, version, user);
      nics.forEach(nicEntity -> {
        Nic nic = nicEntity.getNicCompositionData();
        nic.setNetworkName(networksNameById.get(nic.getNetworkId()));
        nicEntity.setNicCompositionData(nic);
      });
    }

    mdcDataDebugMessage.debugExitMessage("VSP id, component id", vspId, componentId);

    return nics;
  }

  private Map<String, String> listNetworksNameById(String vspId, Version version, String user) {
    Collection<NetworkEntity> networks = networkManager.listNetworks(vspId, version, user);
    return networks.stream().collect(Collectors.toMap(NetworkEntity::getId,
        networkEntity -> networkEntity.getNetworkCompositionData().getName()));
  }

  @Override
  public NicEntity createNic(NicEntity nic, String user) {
    mdcDataDebugMessage.debugEntryMessage("VSP id, component id", nic.getVspId(),
        nic.getComponentId());

    if (!isManual(nic.getVspId(), nic.getVersion())) {
      MdcDataErrorMessage.createErrorMessageAndUpdateMdc(LoggerConstants.TARGET_ENTITY_DB,
          LoggerTragetServiceName.CREATE_NIC, ErrorLevel.ERROR.name(),
          LoggerErrorCode.PERMISSION_ERROR.getErrorCode(), "Can't create nic");
      throw new CoreException(
          new CompositionEditNotAllowedErrorBuilder(nic.getVspId(), nic.getVersion()).build());
    }

    //nicDao.updateVspLatestModificationTime(nic.getVspId(), nic.getVersion());

    mdcDataDebugMessage
        .debugExitMessage("VSP id, component id", nic.getVspId(), nic.getComponentId());

    return null;
  }

  @Override
  public CompositionEntityResponse<Nic> getNic(String vspId, Version version, String componentId,
                                               String nicId, String user) {
    mdcDataDebugMessage
        .debugEntryMessage("VSP id, component id, nic id", vspId, componentId, nicId);

    NicEntity nicEntity = getNic(vspId, version, componentId, nicId);
    Nic nic = nicEntity.getNicCompositionData();

    NicCompositionSchemaInput schemaInput = new NicCompositionSchemaInput();
    schemaInput.setManual(isManual(vspId, version));
    schemaInput.setNic(nic);
    Map<String, String> networksNameById = listNetworksNameById(vspId, version, user);
    nic.setNetworkName(networksNameById.get(nic.getNetworkId()));
    schemaInput.setNetworkIds(networksNameById.keySet());

    CompositionEntityResponse<Nic> response = new CompositionEntityResponse<>();
    response.setId(nicId);
    response.setData(nic);
    response.setSchema(getNicCompositionSchema(schemaInput));

    mdcDataDebugMessage
        .debugExitMessage("VSP id, component id", vspId, componentId, nicId);

    return response;
  }


  private NicEntity getNic(String vspId, Version version, String componentId, String nicId) {
    NicEntity retrieved = nicDao.get(new NicEntity(vspId, version, componentId, nicId));
    VersioningUtil
        .validateEntityExistence(retrieved, new NicEntity(vspId, version, componentId, nicId),
            VspDetails.ENTITY_TYPE);
    return retrieved;
  }

  @Override
  public void deleteNic(String vspId, Version version, String componentId, String nicId,
                        String user) {
    mdcDataDebugMessage
        .debugEntryMessage("VSP id, component id", vspId, componentId, nicId);

    if (!isManual(vspId, version)) {
      MdcDataErrorMessage.createErrorMessageAndUpdateMdc(LoggerConstants.TARGET_ENTITY_DB,
          LoggerTragetServiceName.DELETE_NIC, ErrorLevel.ERROR.name(),
          LoggerErrorCode.PERMISSION_ERROR.getErrorCode(), "Can't delete nic");
      throw new CoreException(
          new CompositionEditNotAllowedErrorBuilder(vspId, version).build());
    }

    //nicDao.updateVspLatestModificationTime(vspId, version);

    mdcDataDebugMessage
        .debugExitMessage("VSP id, component id", vspId, componentId, nicId);
  }

  @Override
  public CompositionEntityValidationData updateNic(NicEntity nic, String user) {
    mdcDataDebugMessage
        .debugEntryMessage("VSP id, component id", nic.getVspId(), nic.getComponentId(),
            nic.getId());

    NicEntity retrieved =
        getNic(nic.getVspId(), nic.getVersion(), nic.getComponentId(), nic.getId());

    NicCompositionSchemaInput schemaInput = new NicCompositionSchemaInput();
    schemaInput.setManual(isManual(nic.getVspId(), nic.getVersion()));
    schemaInput.setNic(retrieved.getNicCompositionData());

    CompositionEntityValidationData validationData = compositionEntityDataManager
        .validateEntity(nic, SchemaTemplateContext.composition, schemaInput);
    if (CollectionUtils.isEmpty(validationData.getErrors())) {
      nicDao.update(nic);
    }

    //nicDao.updateVspLatestModificationTime(nic.getVspId(), nic.getVersion());

    mdcDataDebugMessage
        .debugExitMessage("VSP id, component id", nic.getVspId(), nic.getComponentId(),
            nic.getId());

    return validationData;
  }

  @Override
  public QuestionnaireResponse getNicQuestionnaire(String vspId, Version version,
                                                   String componentId, String nicId, String user) {
    mdcDataDebugMessage
        .debugEntryMessage("VSP id, component id", vspId, componentId, nicId);

    QuestionnaireResponse questionnaireResponse = new QuestionnaireResponse();
    NicEntity nicQuestionnaire = nicDao.getQuestionnaireData(vspId, version, componentId, nicId);
    VersioningUtil.validateEntityExistence(nicQuestionnaire,
        new NicEntity(vspId, version, componentId, nicId), VspDetails.ENTITY_TYPE);

    questionnaireResponse.setData(nicQuestionnaire.getQuestionnaireData());
    questionnaireResponse.setSchema(getNicQuestionnaireSchema(null));

    mdcDataDebugMessage
        .debugExitMessage("VSP id, component id", vspId, componentId, nicId);

    return questionnaireResponse;
  }

  @Override
  public void updateNicQuestionnaire(String vspId, Version version, String componentId,
                                     String nicId, String questionnaireData, String user) {
    mdcDataDebugMessage.debugEntryMessage("VSP id, component id", vspId, componentId, nicId);

    getNic(vspId, version, componentId, nicId);

    nicDao.updateQuestionnaireData(vspId, version, componentId, nicId, questionnaireData);

    //nicDao.updateVspLatestModificationTime(vspId, version);

    mdcDataDebugMessage.debugExitMessage("VSP id, component id", vspId, componentId, nicId);
  }

  protected String getNicQuestionnaireSchema(SchemaTemplateInput schemaInput) {
    return SchemaGenerator
        .generate(SchemaTemplateContext.questionnaire, CompositionEntityType.nic, schemaInput);
  }

  protected String getNicCompositionSchema(NicCompositionSchemaInput schemaInput) {
    return SchemaGenerator
        .generate(SchemaTemplateContext.composition, CompositionEntityType.nic, schemaInput);
  }
  // todo *************************** move to reusable place! *************************

  private boolean isManual(String vspId, Version version) {
    return false;
  }
}