/*
 * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.netconf.topology.singleton.impl.netconf;

import static org.opendaylight.mdsal.common.api.LogicalDatastoreType.CONFIGURATION;
import static org.opendaylight.mdsal.common.api.LogicalDatastoreType.OPERATIONAL;

import com.google.common.util.concurrent.ListenableFuture;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.mdsal.common.api.CommitInfo;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.mdsal.common.api.ReadFailedException;
import org.opendaylight.mdsal.dom.api.DOMRpcResult;
import org.opendaylight.netconf.api.ModifyAction;
import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
import org.opendaylight.yangtools.util.concurrent.FluentFutures;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FailedProxyNetconfServiceFacade implements ProxyNetconfServiceFacade {
    private static final Logger LOG = LoggerFactory.getLogger(FailedProxyNetconfServiceFacade.class);

    private final RemoteDeviceId id;
    private final Throwable failure;

    public FailedProxyNetconfServiceFacade(final RemoteDeviceId id, final Throwable failure) {
        this.id = Objects.requireNonNull(id);
        this.failure = Objects.requireNonNull(failure);
    }

    @Override
    public List<ListenableFuture<? extends DOMRpcResult>> lock() {
        LOG.debug("{}: Lock - failure", id, failure);
        return Collections.singletonList(
            FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("lock", failure)));
    }

    @Override
    public void unlock() {
        LOG.debug("{}: Unlock - failure", id, failure);
    }

    @Override
    public void discardChanges() {
        LOG.debug("{}: Discard changes - failure", id, failure);
    }

    @Override
    public ListenableFuture<Optional<NormalizedNode<?, ?>>> get(YangInstanceIdentifier path) {
        LOG.debug("{}: Get {} {} - failure", id, OPERATIONAL, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new ReadFailedException("get", failure));
    }

    @Override
    public ListenableFuture<Optional<NormalizedNode<?, ?>>> getConfig(YangInstanceIdentifier path) {
        LOG.debug("{}: GetConfig {} {} - failure", id, CONFIGURATION, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new ReadFailedException("getConfig", failure));
    }

    @Override
    public ListenableFuture<? extends DOMRpcResult> merge(LogicalDatastoreType store, YangInstanceIdentifier path,
                                                          NormalizedNode<?, ?> data,
                                                          Optional<ModifyAction> defaultOperation) {
        LOG.debug("{}: Merge {} {} - failure", id, store, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("merge", failure));
    }

    @Override
    public ListenableFuture<? extends DOMRpcResult> replace(LogicalDatastoreType store, YangInstanceIdentifier path,
                                                            NormalizedNode<?, ?> data,
                                                            Optional<ModifyAction> defaultOperation) {
        LOG.debug("{}: Replace {} {} - failure", id, store, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("replace", failure));
    }

    @Override
    public ListenableFuture<? extends DOMRpcResult> create(LogicalDatastoreType store, YangInstanceIdentifier path,
                                                           NormalizedNode<?, ?> data,
                                                           Optional<ModifyAction> defaultOperation) {
        LOG.debug("{}: Create {} {} - failure", id, store, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("create", failure));
    }

    @Override
    public ListenableFuture<? extends DOMRpcResult> delete(LogicalDatastoreType store, YangInstanceIdentifier path) {
        LOG.debug("{}: Delete {} {} - failure", id, store, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("delete", failure));
    }

    @Override
    public ListenableFuture<? extends DOMRpcResult> remove(LogicalDatastoreType store, YangInstanceIdentifier path) {
        LOG.debug("{}: Remove {} {} - failure", id, store, path, failure);
        return FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("remove", failure));
    }

    @Override
    public ListenableFuture<? extends CommitInfo> commit(
        List<ListenableFuture<? extends DOMRpcResult>> resultsFutures) {
        LOG.debug("{}: Commit - failure", id, failure);
        return FluentFutures.immediateFailedFluentFuture(new NetconfServiceFailedException("commit", failure));
    }

    @Override
    public @NonNull Object getDeviceId() {
        return id;
    }
}