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/*
 * Copyright © 2016-2017 European Support Limited
 *
 * 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.
 */
package org.openecomp.sdc.vendorlicense.healing.impl;

import java.util.UUID;
import org.openecomp.sdc.vendorlicense.dao.EntitlementPoolDao;
import org.openecomp.sdc.vendorlicense.dao.EntitlementPoolDaoFactory;
import org.openecomp.sdc.vendorlicense.dao.LicenseKeyGroupDao;
import org.openecomp.sdc.vendorlicense.dao.LicenseKeyGroupDaoFactory;
import org.openecomp.sdc.vendorlicense.dao.types.EntitlementPoolEntity;
import org.openecomp.sdc.vendorlicense.dao.types.LicenseKeyGroupEntity;
import org.openecomp.sdc.vendorlicense.healing.HealingService;
import org.openecomp.sdc.versioning.VersioningManager;
import org.openecomp.sdc.versioning.VersioningManagerFactory;
import org.openecomp.sdc.versioning.dao.types.VersionableEntity;

public class SimpleHealingServiceImpl implements HealingService {

    private static final EntitlementPoolDao entitlementPoolDao = EntitlementPoolDaoFactory.getInstance().createInterface();
    private static final LicenseKeyGroupDao licenseKeyGroupDao = LicenseKeyGroupDaoFactory.getInstance().createInterface();
    private static final VersioningManager VERSIONING_MANAGER = VersioningManagerFactory.getInstance().createInterface();

    @Override
    public VersionableEntity heal(VersionableEntity toHeal) {
        return handleMissingVersionId(toHeal);
    }

    @Override
    public void persistNoHealing(VersionableEntity alreadyHealed) {
        if (alreadyHealed instanceof EntitlementPoolEntity) {
            entitlementPoolDao.update((EntitlementPoolEntity) alreadyHealed);
        } else if (alreadyHealed instanceof LicenseKeyGroupEntity) {
            licenseKeyGroupDao.update((LicenseKeyGroupEntity) alreadyHealed);
        }
    }

    private VersionableEntity handleMissingVersionId(VersionableEntity toHeal) {
        if (toHeal != null && toHeal.getVersionUuId() != null) {
            return toHeal;
        }
        if (toHeal instanceof EntitlementPoolEntity) {
            toHeal.setVersionUuId(UUID.randomUUID().toString());
            entitlementPoolDao.update((EntitlementPoolEntity) toHeal);
        } else if (toHeal instanceof LicenseKeyGroupEntity) {
            toHeal.setVersionUuId(UUID.randomUUID().toString());
            licenseKeyGroupDao.update((LicenseKeyGroupEntity) toHeal);
        } else {
            throw new UnsupportedOperationException("Unsupported operation for 1610 release/1607->1610 migration.");
        }
        VERSIONING_MANAGER.publish(toHeal.getFirstClassCitizenId(), toHeal.getVersion(), "Add missing version_uuid on ep/lkg");
        return toHeal;
    }
}