/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.rest.action.admin.cluster;

import org.elasticsearch.action.admin.cluster.snapshots.clone.CloneSnapshotRequest;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.internal.node.NodeClient;
import org.elasticsearch.common.xcontent.support.XContentMapValues;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.Scope;
import org.elasticsearch.rest.ServerlessScope;
import org.elasticsearch.rest.action.RestToXContentListener;

import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import static org.elasticsearch.rest.RestRequest.Method.PUT;
import static org.elasticsearch.rest.RestUtils.getMasterNodeTimeout;

/**
 * Clones indices from one snapshot into another snapshot in the same repository
 */
@ServerlessScope(Scope.INTERNAL)
public class RestCloneSnapshotAction extends BaseRestHandler {

    @Override
    public List<Route> routes() {
        return List.of(new Route(PUT, "/_snapshot/{repository}/{snapshot}/_clone/{target_snapshot}"));
    }

    @Override
    public String getName() {
        return "clone_snapshot_action";
    }

    @Override
    public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
        try (var parser = request.contentParser()) {
            final Map<String, Object> source = parser.map();
            final CloneSnapshotRequest cloneSnapshotRequest = new CloneSnapshotRequest(
                getMasterNodeTimeout(request),
                request.param("repository"),
                request.param("snapshot"),
                request.param("target_snapshot"),
                XContentMapValues.nodeStringArrayValue(source.getOrDefault("indices", Collections.emptyList()))
            );
            cloneSnapshotRequest.indicesOptions(IndicesOptions.fromMap(source, cloneSnapshotRequest.indicesOptions()));
            return channel -> client.admin().cluster().cloneSnapshot(cloneSnapshotRequest, new RestToXContentListener<>(channel));
        }
    }
}