/*-
 * ============LICENSE_START=======================================================
 * ONAP CLAMP
 * ================================================================================
 * Copyright (C) 2019 Nokia 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.clamp.policy.operational;

import com.google.gson.JsonObject;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import org.onap.clamp.loop.Loop;
import org.onap.clamp.policy.PolicyService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class OperationalPolicyService implements PolicyService<OperationalPolicy> {

    private final OperationalPolicyRepository operationalPolicyRepository;

    @Autowired
    public OperationalPolicyService(OperationalPolicyRepository repository) {
        this.operationalPolicyRepository = repository;
    }

    @Override
    public Set<OperationalPolicy> updatePolicies(Loop loop, List<OperationalPolicy> operationalPolicies) {
        return operationalPolicies
                .parallelStream()
                .map(policy ->
                        operationalPolicyRepository
                                .findById(policy.getName())
                                .map(p -> setConfigurationJson(p, policy.getConfigurationsJson()))
                                .orElse(new OperationalPolicy(policy.getName(), loop,
                                        policy.getConfigurationsJson(),
                                        policy.getPolicyModel())))
                .collect(Collectors.toSet());
    }

    @Override
    public boolean isExisting(String policyName) {
        return operationalPolicyRepository.existsById(policyName);
    }

    private OperationalPolicy setConfigurationJson(OperationalPolicy policy, JsonObject configurationsJson) {
        policy.setConfigurationsJson(configurationsJson);
        return policy;
    }
}