/*-
 * ============LICENSE_START=======================================================
 * VID
 * ================================================================================
 * Copyright (C) 2017 - 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.onap.vid.aai.util;

import java.util.List;
import java.util.Optional;
import org.onap.vid.aai.model.AaiGetNetworkCollectionDetails.KeyValueModel;
import org.onap.vid.aai.model.AaiGetNetworkCollectionDetails.Relationship;
import org.onap.vid.aai.model.AaiGetNetworkCollectionDetails.RelationshipList;

public class AAITreeNodeUtils {

    private AAITreeNodeUtils() {
    }

    public static Optional<Relationship> findFirstRelationshipByRelatedTo(RelationshipList relationshipList, String relatedTo) {
        if (relationshipList==null || relationshipList.getRelationship()==null) {
            return Optional.empty();
        }
        return relationshipList.getRelationship().stream().filter(x->relatedTo.equals(x.getRelatedTo())).findFirst();
    }

    public static <T extends KeyValueModel> Optional<String> findFirstValue(List<T> data, String key) {
        if (data==null || data.isEmpty()) {
            return Optional.empty();
        }
        Optional<T> optValue = data.stream().filter(x->key.equals(x.getKey())).findFirst();
        return optValue.map(KeyValueModel::getValue);
    }

}