/*
 * Copyright (c) 2016 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.v3po.translate.v3po.interfaces;

import io.fd.honeycomb.v3po.translate.Context;
import io.fd.honeycomb.v3po.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.VppApiCustomizer;
import java.util.List;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.vppjapi.vppApi;

/**
 * Ietf interface write customizer that only caches interface objects for child writers
 */
public class InterfaceCustomizer extends VppApiCustomizer implements ListWriterCustomizer<Interface, InterfaceKey> {

    public static final String IFC_AFTER_CTX = InterfaceCustomizer.class.toString() + "ifcAfter";
    public static final String IFC_BEFORE_CTX = InterfaceCustomizer.class.toString() + "ifcBefore";

    public InterfaceCustomizer(final vppApi vppApi) {
        super(vppApi);
    }

    @Override
    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
                                       @Nonnull final Interface dataAfter,
                                       @Nonnull final Context writeContext) {
        writeContext.put(IFC_AFTER_CTX, dataAfter);
    }

    @Override
    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
                                        @Nonnull final Interface dataBefore,
                                        @Nonnull final Interface dataAfter,
                                        @Nonnull final Context writeContext) {
        writeContext.put(IFC_BEFORE_CTX, dataBefore);
        writeContext.put(IFC_AFTER_CTX, dataAfter);
    }

    @Override
    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
                                        @Nonnull final Interface dataBefore,
                                        @Nonnull final Context writeContext) {
        writeContext.put(IFC_BEFORE_CTX, dataBefore);
    }

    @Nonnull
    @Override
    public List<Interface> extract(@Nonnull final InstanceIdentifier<Interface> currentId,
                                   @Nonnull final DataObject parentData) {
        return ((Interfaces) parentData).getInterface();
    }
}