/*
 * 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 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.dao.types.VersionableEntity;

import java.util.UUID;

public class SimpleHealingServiceImpl implements HealingService {
  private static final EntitlementPoolDao entitlementPoolDao =
      EntitlementPoolDaoFactory.getInstance().createInterface();
  private static final LicenseKeyGroupDao licenseKeyGroupDao =
      LicenseKeyGroupDaoFactory.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.");
    }
    return toHeal;
  }
}