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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.sdc.vendorsoftwareproduct.dao.impl.zusammen;

import com.amdocs.zusammen.adaptor.inbound.api.types.item.Element;
import com.amdocs.zusammen.adaptor.inbound.api.types.item.ElementInfo;
import com.amdocs.zusammen.adaptor.inbound.api.types.item.ZusammenElement;
import com.amdocs.zusammen.datatypes.Id;
import com.amdocs.zusammen.datatypes.SessionContext;
import com.amdocs.zusammen.datatypes.item.Action;
import com.amdocs.zusammen.datatypes.item.ElementContext;
import com.amdocs.zusammen.datatypes.item.Info;
import org.openecomp.core.zusammen.api.ZusammenAdaptor;
import org.openecomp.sdc.datatypes.model.ElementType;
import org.openecomp.sdc.vendorsoftwareproduct.dao.ComponentDependencyModelDao;
import org.openecomp.sdc.vendorsoftwareproduct.dao.impl.zusammen.convertor.ElementToComponentDependencyModelConvertor;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.ComponentDependencyModelEntity;
import org.openecomp.types.ElementPropertyName;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Optional;
import java.util.stream.Collectors;

import static org.openecomp.core.zusammen.api.ZusammenUtil.*;

/**
 * Created by ayalaben on 5/16/2017.
 */
public class ComponentDependencyModelDaoZusammenImpl implements ComponentDependencyModelDao {

  private ZusammenAdaptor zusammenAdaptor;

  public ComponentDependencyModelDaoZusammenImpl(ZusammenAdaptor zusammenAdaptor) {
    this.zusammenAdaptor = zusammenAdaptor;
  }

  @Override
  public ComponentDependencyModelEntity get(ComponentDependencyModelEntity dependency) {

    SessionContext context = createSessionContext();
    ElementContext elementContext =
        new ElementContext(dependency.getVspId(), dependency.getVersion().getId());

    Optional<ElementInfo> componentDependencyElement =
        zusammenAdaptor.getElementInfo(context, elementContext, new Id(dependency.getId()));

    if (componentDependencyElement.isPresent()) {
      ElementToComponentDependencyModelConvertor convertor = new
          ElementToComponentDependencyModelConvertor();

      ComponentDependencyModelEntity entity = convertor.convert(componentDependencyElement.get());
      entity.setVspId(dependency.getVspId());
      entity.setVersion(dependency.getVersion());
      return entity;
    }

    return null;
  }

  @Override
  public void create(ComponentDependencyModelEntity dependency) {
    ZusammenElement componentDependency =
        buildComponentDependencyElement(dependency, Action.CREATE);

    ZusammenElement componentDependencies =
        buildStructuralElement(ElementType.ComponentDependencies, Action.IGNORE);
    componentDependencies.addSubElement(componentDependency);

    ZusammenElement vspModel = buildStructuralElement(ElementType.VspModel, Action.IGNORE);
    vspModel.addSubElement(componentDependencies);

    SessionContext context = createSessionContext();
    ElementContext elementContext =
        new ElementContext(dependency.getVspId(), dependency.getVersion().getId());

    Element compDepsSavedElement = zusammenAdaptor
        .saveElement(context, elementContext, vspModel, "Create component dependency model");

    dependency.setId(compDepsSavedElement.getSubElements().iterator().next()
        .getSubElements().iterator().next().getElementId().getValue());
  }

  @Override
  public void update(ComponentDependencyModelEntity dependency) {
    ZusammenElement componentDependencyElement =
        buildComponentDependencyElement(dependency, Action.UPDATE);

    SessionContext context = createSessionContext();
    ElementContext elementContext =
        new ElementContext(dependency.getVspId(), dependency.getVersion().getId());

    zusammenAdaptor.saveElement(context, elementContext, componentDependencyElement,
        String.format("Update component dependency model with id %s", dependency.getId()));
  }

  @Override
  public void delete(ComponentDependencyModelEntity dependency) {
    ZusammenElement componentDependencyElement =
        buildElement(new Id(dependency.getId()), Action.DELETE);

    SessionContext context = createSessionContext();
    ElementContext elementContext =
        new ElementContext(dependency.getVspId(), dependency.getVersion().getId());

    zusammenAdaptor.saveElement(context, elementContext, componentDependencyElement,
        String.format("Delete component dependency model with id %s", dependency.getId()));
  }

  @Override
  public void registerVersioning(String versionableEntityType) {
    //not implemented?
  }

  @Override
  public Collection<ComponentDependencyModelEntity> list(
      ComponentDependencyModelEntity dependency) {
    SessionContext context = createSessionContext();
    ElementContext elementContext =
        new ElementContext(dependency.getVspId(), dependency.getVersion().getId());

    Optional<ElementInfo> vspModel = zusammenAdaptor
        .getElementInfoByName(context, elementContext, null, ElementType.VspModel.name());
    if (!vspModel.isPresent()) {
      return new ArrayList<>();
    }

    ElementToComponentDependencyModelConvertor convertor =
        new ElementToComponentDependencyModelConvertor();
    return zusammenAdaptor.listElementsByName(context, elementContext, vspModel.get().getId(),
        ElementType.ComponentDependencies.name()).stream()
        .map(elementInfo -> {
          ComponentDependencyModelEntity entity = convertor.convert(elementInfo);
          entity.setVspId(dependency.getVspId());
          entity.setVersion(dependency.getVersion());
          entity.setId(elementInfo.getId().getValue());
          return entity;
        })
        .collect(Collectors.toList());
  }

  private ZusammenElement buildComponentDependencyElement(ComponentDependencyModelEntity compDep,
                                                          Action action) {
    ZusammenElement componentDependencyElement =
        buildElement(compDep.getId() == null ? null : new Id(compDep.getId()), action);

    Info info = new Info();
    info.addProperty(ElementPropertyName.elementType.name(), ElementType.ComponentDependency);
    info.addProperty(ComponentDependencyModelPropertyName.RELATION.getVal(), compDep.getRelation());
    info.addProperty(ComponentDependencyModelPropertyName.SOURCE_COMPONENT_ID.getVal(),
        compDep.getSourceComponentId());
    info.addProperty(ComponentDependencyModelPropertyName.TARGET_COMPONENT_ID.getVal(),
        compDep.getTargetComponentId());

    componentDependencyElement.setInfo(info);

    return componentDependencyElement;
  }

  private enum ComponentDependencyModelPropertyName {
    ID("id"),
    RELATION("relation"),
    SOURCE_COMPONENT_ID("sourcecomponent_id"),
    TARGET_COMPONENT_ID("targetcomponent_id");

    private String val;

    ComponentDependencyModelPropertyName(String val){
      this.val=val;
    }

    public String getVal() {
      return val;
    }
  }
}