/*
 * Copyright (c) 2016 Hewlett-Packard Enterprise 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.extension.vendor.nicira.convertor.action;

import com.google.common.base.Preconditions;
import org.opendaylight.openflowplugin.extension.api.ConvertorActionFromOFJava;
import org.opendaylight.openflowplugin.extension.api.ConvertorActionToOFJava;
import org.opendaylight.openflowplugin.extension.api.path.ActionPath;
import org.opendaylight.openflowplugin.extension.vendor.nicira.convertor.CodecPreconditionException;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.aug.nx.action.ActionLearn;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.aug.nx.action.ActionLearnBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.learn.grouping.NxActionLearn;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.learn.grouping.NxActionLearnBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.NxActionLearnGrouping;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.flows.statistics.update.flow.and.statistics.map.list.instructions.instruction.instruction.apply.actions._case.apply.actions.action.action.NxActionLearnNotifFlowsStatisticsUpdateApplyActionsCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.flows.statistics.update.flow.and.statistics.map.list.instructions.instruction.instruction.write.actions._case.write.actions.action.action.NxActionLearnNotifFlowsStatisticsUpdateWriteActionsCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.get.flow.statistics.output.flow.and.statistics.map.list.instructions.instruction.instruction.apply.actions._case.apply.actions.action.action.NxActionLearnNotifDirectStatisticsUpdateApplyActionsCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.get.flow.statistics.output.flow.and.statistics.map.list.instructions.instruction.instruction.write.actions._case.write.actions.action.action.NxActionLearnNotifDirectStatisticsUpdateWriteActionsCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.group.desc.stats.updated.group.desc.stats.buckets.bucket.action.action.NxActionLearnNotifGroupDescStatsUpdatedCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nodes.node.table.flow.instructions.instruction.instruction.apply.actions._case.apply.actions.action.action.NxActionLearnNodesNodeTableFlowApplyActionsCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nodes.node.table.flow.instructions.instruction.instruction.write.actions._case.write.actions.action.action.NxActionLearnNodesNodeTableFlowWriteActionsCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.learn.grouping.NxLearn;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.nicira.action.rev140714.nx.action.learn.grouping.NxLearnBuilder;

/**
 * Convert to/from SAL flow model to openflowjava model for NxLearn action.
 *
 * @author Slava Radune
 */
public class LearnConvertor implements
        ConvertorActionToOFJava<org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action,
            Action>, ConvertorActionFromOFJava<Action, ActionPath> {

    @Override
    public org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action convert(
            final Action input, final ActionPath path) {
        NxActionLearn action = ((ActionLearn) input.getActionChoice()).getNxActionLearn();
        NxLearnBuilder builder = new NxLearnBuilder();
        LearnConvertorUtil.convertUp(action, builder);
        return resolveAction(builder.build(), path);
    }

    @Override
    public Action convert(
            final org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action nxActionArg) {
        Preconditions.checkArgument(nxActionArg instanceof NxActionLearnGrouping);
        NxActionLearnGrouping nxAction = (NxActionLearnGrouping) nxActionArg;

        NxActionLearnBuilder nxActionLearnBuilder = new NxActionLearnBuilder();
        LearnConvertorUtil.convertDown(nxAction, nxActionLearnBuilder);
        ActionLearnBuilder actionLearnBuilder = new ActionLearnBuilder();
        actionLearnBuilder.setNxActionLearn(nxActionLearnBuilder.build());
        return ActionUtil.createAction(actionLearnBuilder.build());
    }

    private static org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.Action resolveAction(
            final NxLearn value, final ActionPath path) {
        switch (path) {
            case INVENTORY_FLOWNODE_TABLE_WRITE_ACTIONS:
                return new NxActionLearnNodesNodeTableFlowWriteActionsCaseBuilder().setNxLearn(value).build();
            case FLOWS_STATISTICS_UPDATE_WRITE_ACTIONS:
                return new NxActionLearnNotifFlowsStatisticsUpdateWriteActionsCaseBuilder().setNxLearn(value).build();
            case FLOWS_STATISTICS_UPDATE_APPLY_ACTIONS:
                return new NxActionLearnNotifFlowsStatisticsUpdateApplyActionsCaseBuilder().setNxLearn(value).build();
            case GROUP_DESC_STATS_UPDATED_BUCKET_ACTION:
                return new NxActionLearnNotifGroupDescStatsUpdatedCaseBuilder().setNxLearn(value).build();
            case FLOWS_STATISTICS_RPC_WRITE_ACTIONS:
                return new NxActionLearnNotifDirectStatisticsUpdateWriteActionsCaseBuilder().setNxLearn(value).build();
            case FLOWS_STATISTICS_RPC_APPLY_ACTIONS:
                return new NxActionLearnNotifDirectStatisticsUpdateApplyActionsCaseBuilder().setNxLearn(value).build();
            case INVENTORY_FLOWNODE_TABLE_APPLY_ACTIONS:
                return new NxActionLearnNodesNodeTableFlowApplyActionsCaseBuilder().setNxLearn(value).build();
            default:
                throw new CodecPreconditionException(path);
        }
    }
}