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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.vendorlicense.dao.impl.zusammen;

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

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 java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
import org.openecomp.core.zusammen.api.ZusammenAdaptor;
import org.openecomp.core.zusammen.api.ZusammenUtil;
import org.openecomp.sdc.datatypes.model.ElementType;
import org.openecomp.sdc.vendorlicense.dao.EntitlementPoolDao;
import org.openecomp.sdc.vendorlicense.dao.impl.zusammen.convertor.ElementToEntitlementPoolConvertor;
import org.openecomp.sdc.vendorlicense.dao.types.EntitlementPoolEntity;
import org.openecomp.types.ElementPropertyName;

public class EntitlementPoolZusammenDaoImpl implements EntitlementPoolDao {

    private ZusammenAdaptor zusammenAdaptor;

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

    @Override
    public void registerVersioning(String versionableEntityType) {
        //no need
    }

    @Override
    public void create(EntitlementPoolEntity entitlementPool) {
        ZusammenElement entitlementPoolElement = buildEntitlementPoolElement(entitlementPool, Action.CREATE);
        ZusammenElement entitlementPoolsElement = ZusammenUtil.buildStructuralElement(ElementType.EntitlementPools, Action.IGNORE);
        ZusammenElement limitsElement = ZusammenUtil.buildStructuralElement(ElementType.Limits, Action.CREATE);
        entitlementPoolElement.addSubElement(limitsElement);
        entitlementPoolsElement.addSubElement(entitlementPoolElement);
        SessionContext context = ZusammenUtil.createSessionContext();
        Element epsSavedElement = zusammenAdaptor
            .saveElement(context, new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId()),
                entitlementPoolsElement, "Create entitlement pool");
        entitlementPool.setId(epsSavedElement.getSubElements().iterator().next().getElementId().getValue());
    }

    @Override
    public void update(EntitlementPoolEntity entitlementPool) {
        ZusammenElement entitlmentpoolElement = buildEntitlementPoolElement(entitlementPool, Action.UPDATE);
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        Optional<ElementInfo> epFromDb = zusammenAdaptor.getElementInfo(context, elementContext, new Id(entitlementPool.getId()));
        if (epFromDb.isPresent()) {
            if (entitlmentpoolElement.getRelations() == null) {
                entitlmentpoolElement.setRelations(new ArrayList<>());
            }
            if (epFromDb.get().getRelations() != null && !epFromDb.get().getRelations().isEmpty()) {
                entitlmentpoolElement.getRelations().addAll(epFromDb.get().getRelations());
            }
        }
        zusammenAdaptor.saveElement(context, elementContext, entitlmentpoolElement,
            String.format("Update entitlement pool with id %s", entitlementPool.getId()));
    }

    @Override
    public EntitlementPoolEntity get(EntitlementPoolEntity entitlementPool) {
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        ElementToEntitlementPoolConvertor convertor = new ElementToEntitlementPoolConvertor();
        return zusammenAdaptor.getElementInfo(context, elementContext, new Id(entitlementPool.getId())).map(elementInfo -> {
            EntitlementPoolEntity entity = convertor.convert(elementInfo);
            entity.setVendorLicenseModelId(entitlementPool.getVendorLicenseModelId());
            entity.setVersion(entitlementPool.getVersion());
            return entity;
        }).orElse(null);
    }

    @Override
    public void delete(EntitlementPoolEntity entitlementPool) {
        ZusammenElement zusammenElement = buildElement(new Id(entitlementPool.getId()), Action.DELETE);
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        zusammenAdaptor.saveElement(context, elementContext, zusammenElement, "delete entitlement pool. id:" + entitlementPool.getId() + ".");
    }

    @Override
    public Collection<EntitlementPoolEntity> list(EntitlementPoolEntity entitlementPool) {
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        ElementToEntitlementPoolConvertor convertor = new ElementToEntitlementPoolConvertor();
        return zusammenAdaptor.listElementsByName(context, elementContext, null, ElementType.EntitlementPools.name()).stream().map(elementInfo -> {
            EntitlementPoolEntity entity = convertor.convert(elementInfo);
            entity.setVendorLicenseModelId(entitlementPool.getVendorLicenseModelId());
            entity.setVersion(entitlementPool.getVersion());
            return entity;
        }).collect(Collectors.toList());
    }

    @Override
    public long count(EntitlementPoolEntity entitlementPool) {
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        return zusammenAdaptor.listElementsByName(context, elementContext, null, ElementType.EntitlementPools.name()).size();
    }

    @Override
    public void removeReferencingFeatureGroup(EntitlementPoolEntity entitlementPool, String referencingFeatureGroupId) {
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        Optional<ElementInfo> elementInfo = zusammenAdaptor.getElementInfo(context, elementContext, new Id(entitlementPool.getId()));
        if (elementInfo.isPresent()) {
            ZusammenElement zusammenElement = VlmZusammenUtil.getZusammenElement(elementInfo.get());
            zusammenElement.setAction(Action.UPDATE);
            zusammenElement.setRelations(elementInfo.get().getRelations().stream()
                .filter(relation -> !referencingFeatureGroupId.equals(relation.getEdge2().getElementId().getValue())).collect(Collectors.toList()));
            zusammenAdaptor.saveElement(context, elementContext, zusammenElement, "remove referencing feature group");
        }
    }

    @Override
    public void addReferencingFeatureGroup(EntitlementPoolEntity entitlementPool, String referencingFeatureGroupId) {
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPool.getVendorLicenseModelId(), entitlementPool.getVersion().getId());
        Optional<ElementInfo> elementInfo = zusammenAdaptor.getElementInfo(context, elementContext, new Id(entitlementPool.getId()));
        if (elementInfo.isPresent()) {
            ZusammenElement zusammenElement = VlmZusammenUtil.getZusammenElement(elementInfo.get());
            zusammenElement.setAction(Action.UPDATE);
            if (zusammenElement.getRelations() == null) {
                zusammenElement.setRelations(new ArrayList<>());
            }
            zusammenElement.getRelations()
                .add(VlmZusammenUtil.createRelation(RelationType.EntitlmentPoolToReferencingFeatureGroup, referencingFeatureGroupId));
            zusammenAdaptor.saveElement(context, elementContext, zusammenElement, "add referencing feature group");
        }
    }

    @Override
    public void deleteAll(EntitlementPoolEntity entitlementPool) {
        //not supported
    }

    @Override
    public String getManufacturerReferenceNumber(EntitlementPoolEntity entitlementPoolEntity) {
        SessionContext context = ZusammenUtil.createSessionContext();
        ElementContext elementContext = new ElementContext(entitlementPoolEntity.getVendorLicenseModelId(),
            entitlementPoolEntity.getVersion().getId());
        Optional<ElementInfo> elementInfo1 = zusammenAdaptor.getElementInfo(context, elementContext, new Id(entitlementPoolEntity.getId()));
        Map<String, Object> properties = elementInfo1.get().getInfo().getProperties();
        String manufacturerReferenceNumber = null;
        if (properties != null && properties.containsKey("manufacturerReferenceNumber")) {
            manufacturerReferenceNumber = (String) properties.get("manufacturerReferenceNumber");
        }
        return manufacturerReferenceNumber;
    }

    private ZusammenElement buildEntitlementPoolElement(EntitlementPoolEntity entitlementPool, Action action) {
        ZusammenElement entitlementPoolElement = buildElement(entitlementPool.getId() == null ? null : new Id(entitlementPool.getId()), action);
        Info info = new Info();
        info.setName(entitlementPool.getName());
        info.setDescription(entitlementPool.getDescription());
        info.addProperty(ElementPropertyName.elementType.name(), ElementType.EntitlementPool);
        info.addProperty("version_uuid", entitlementPool.getVersionUuId());
        info.addProperty("EntitlementPoolType", entitlementPool.getType());
        info.addProperty("thresholdValue", entitlementPool.getThresholdValue());
        info.addProperty("threshold_unit", entitlementPool.getThresholdUnit());
        info.addProperty("increments", entitlementPool.getIncrements());
        info.addProperty("operational_scope", entitlementPool.getOperationalScope());
        info.addProperty("startDate", entitlementPool.getStartDate());
        info.addProperty("expiryDate", entitlementPool.getExpiryDate());
        info.addProperty("manufacturerReferenceNumber", entitlementPool.getManufacturerReferenceNumber());
        entitlementPoolElement.setInfo(info);
        if (entitlementPool.getReferencingFeatureGroups() != null && !entitlementPool.getReferencingFeatureGroups().isEmpty()) {
            entitlementPoolElement.setRelations(entitlementPool.getReferencingFeatureGroups().stream()
                .map(rel -> VlmZusammenUtil.createRelation(RelationType.EntitlmentPoolToReferencingFeatureGroup, rel)).collect(Collectors.toList()));
        }
        return entitlementPoolElement;
    }
}