/*
 * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.match.cases;

import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.ConvertorCase;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.data.VersionConvertorData;
import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._4.match.TcpMatch;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.TcpDst;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.TcpSrc;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntry;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.TcpDstCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.TcpSrcCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.tcp.dst._case.TcpDstBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.tcp.src._case.TcpSrcBuilder;

public class SalToOfTcpMatchCase extends ConvertorCase<TcpMatch, List<MatchEntry>, VersionConvertorData> {
    public SalToOfTcpMatchCase() {
        super(TcpMatch.class, true);
    }

    @Override
    public Optional<List<MatchEntry>> process(@Nonnull TcpMatch source, VersionConvertorData data, ConvertorExecutor convertorExecutor) {
        List<MatchEntry> result = new ArrayList<>();

        if (source.getTcpSourcePort() != null) {
            MatchEntryBuilder matchEntryBuilder = new MatchEntryBuilder();
            matchEntryBuilder.setOxmClass(OpenflowBasicClass.class);
            matchEntryBuilder.setOxmMatchField(TcpSrc.class);

            TcpSrcCaseBuilder tcpSrcCaseBuilder = new TcpSrcCaseBuilder();
            TcpSrcBuilder tcpSrcBuilder = new TcpSrcBuilder();
            tcpSrcBuilder.setPort(source.getTcpSourcePort());
            tcpSrcCaseBuilder.setTcpSrc(tcpSrcBuilder.build());

            matchEntryBuilder.setMatchEntryValue(tcpSrcCaseBuilder.build());
            matchEntryBuilder.setHasMask(false);
            result.add(matchEntryBuilder.build());
        }

        if (source.getTcpDestinationPort() != null) {
            MatchEntryBuilder matchEntryBuilder = new MatchEntryBuilder();
            matchEntryBuilder.setOxmClass(OpenflowBasicClass.class);
            matchEntryBuilder.setOxmMatchField(TcpDst.class);

            TcpDstCaseBuilder tcpDstCaseBuilder = new TcpDstCaseBuilder();
            TcpDstBuilder tcpDstBuilder = new TcpDstBuilder();
            tcpDstBuilder.setPort(source.getTcpDestinationPort());
            tcpDstCaseBuilder.setTcpDst(tcpDstBuilder.build());
            matchEntryBuilder.setMatchEntryValue(tcpDstCaseBuilder.build());
            matchEntryBuilder.setHasMask(false);
            result.add(matchEntryBuilder.build());
        }

        return Optional.of(result);
    }
}