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/*
 * ============LICENSE_START=======================================================
 *  Copyright (C) 2023 Nordix Foundation
 *  ================================================================================
 *  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.
 *
 *  SPDX-License-Identifier: Apache-2.0
 *  ============LICENSE_END=========================================================
 */

package org.onap.cps.ncmp.dmi.notifications.cmsubscription;

import com.fasterxml.jackson.databind.ObjectMapper;
import io.cloudevents.CloudEvent;
import io.cloudevents.core.builder.CloudEventBuilder;
import java.net.URI;
import java.util.UUID;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import org.onap.cps.ncmp.dmi.exception.CloudEventConstructionException;
import org.onap.cps.ncmp.events.cmsubscription1_0_0.dmi_to_ncmp.CmSubscriptionDmiOutEvent;

@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class CmSubscriptionDmiOutEventToCloudEventMapper {

    private static final ObjectMapper objectMapper = new ObjectMapper();

    /**
     * Maps SubscriptionEventResponse to a CloudEvent.
     *
     * @param cmSubscriptionDmiOutEvent object.
     * @param subscriptionType          String of subscription type.
     * @param dmiName                   String of dmiName.
     * @return CloudEvent built.
     */
    public static CloudEvent toCloudEvent(final CmSubscriptionDmiOutEvent cmSubscriptionDmiOutEvent,
            final String subscriptionType, final String dmiName) {
        try {
            return CloudEventBuilder.v1().withId(UUID.randomUUID().toString()).withSource(URI.create(dmiName))
                    .withType(subscriptionType)
                    .withDataSchema(URI.create("urn:cps:" + CmSubscriptionDmiOutEvent.class.getName() + ":1.0.0"))
                    .withExtension("correlationid", cmSubscriptionDmiOutEvent.getData().getClientId() + ":"
                                                            + cmSubscriptionDmiOutEvent.getData().getSubscriptionName())
                    .withData(objectMapper.writeValueAsBytes(cmSubscriptionDmiOutEvent)).build();
        } catch (final Exception ex) {
            throw new CloudEventConstructionException("The Cloud Event could not be constructed",
                    "Invalid object to serialize or required headers is missing", ex);
        }
    }


}