/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 *
 * 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 io.fd.honeycomb.lisp.translate.write;

import static com.google.common.base.Preconditions.checkNotNull;

import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
import io.fd.honeycomb.translate.v3po.util.TranslateUtils;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import java.util.concurrent.TimeoutException;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.map.resolvers.grouping.map.resolvers.MapResolver;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.map.resolvers.grouping.map.resolvers.MapResolverKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.jvpp.VppBaseCallException;
import org.openvpp.jvpp.core.dto.LispAddDelMapResolver;
import org.openvpp.jvpp.core.future.FutureJVppCore;


/**
 * Handles updates of {@link MapResolver} list
 */
public class MapResolverCustomizer extends FutureJVppCustomizer
        implements ListWriterCustomizer<MapResolver, MapResolverKey> {

    public MapResolverCustomizer(final FutureJVppCore vppApi) {
        super(vppApi);
    }

    @Override
    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<MapResolver> id,
                                       @Nonnull final MapResolver dataAfter, @Nonnull final WriteContext writeContext)
            throws WriteFailedException {

        checkNotNull(dataAfter, "Data is null");
        checkNotNull(dataAfter.getIpAddress(), "Address is null");

        try {
            addDelMapResolverAndReply(true, dataAfter);
        } catch (VppBaseCallException | TimeoutException e) {
            throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
        }
    }

    @Override
    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<MapResolver> id,
                                        @Nonnull final MapResolver dataBefore, @Nonnull final MapResolver dataAfter,
                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
        throw new UnsupportedOperationException("Operation not supported");
    }

    @Override
    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<MapResolver> id,
                                        @Nonnull final MapResolver dataBefore, @Nonnull final WriteContext writeContext)
            throws WriteFailedException {

        checkNotNull(dataBefore, "Data is null");
        checkNotNull(dataBefore.getIpAddress(), "Address is null");

        try {
            addDelMapResolverAndReply(false, dataBefore);
        } catch (VppBaseCallException | TimeoutException e) {
            throw new WriteFailedException.CreateFailedException(id, dataBefore, e);
        }
    }

    private void addDelMapResolverAndReply(boolean add, MapResolver data) throws VppBaseCallException,
            TimeoutException {

        LispAddDelMapResolver request = new LispAddDelMapResolver();
        request.isAdd = TranslateUtils.booleanToByte(add);


        boolean ipv6 = TranslateUtils.isIpv6(data.getIpAddress());

        request.isIpv6 = TranslateUtils.booleanToByte(ipv6);
        request.ipAddress = TranslateUtils.ipAddressToArray(ipv6, data.getIpAddress());

        TranslateUtils.getReply(getFutureJVpp().lispAddDelMapResolver(request).toCompletableFuture());
    }
}