/*
 * 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.desirednodes.UpdateDesiredNodesAction;
import org.elasticsearch.action.admin.cluster.desirednodes.UpdateDesiredNodesRequest;
import org.elasticsearch.client.internal.node.NodeClient;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.action.RestToXContentListener;
import org.elasticsearch.xcontent.XContentParser;

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

import static org.elasticsearch.rest.RestUtils.getAckTimeout;
import static org.elasticsearch.rest.RestUtils.getMasterNodeTimeout;

public class RestUpdateDesiredNodesAction extends BaseRestHandler {

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

    @Override
    public List<Route> routes() {
        return List.of(new Route(RestRequest.Method.PUT, "_internal/desired_nodes/{history_id}/{version}"));
    }

    @Override
    protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) throws IOException {
        final String historyId = request.param("history_id");
        final long version = request.paramAsLong("version", Long.MIN_VALUE);
        boolean dryRun = request.paramAsBoolean("dry_run", false);

        final UpdateDesiredNodesRequest updateDesiredNodesRequest;
        try (XContentParser parser = request.contentParser()) {
            updateDesiredNodesRequest = UpdateDesiredNodesRequest.fromXContent(
                getMasterNodeTimeout(request),
                getAckTimeout(request),
                historyId,
                version,
                dryRun,
                parser
            );
        }

        return restChannel -> client.execute(
            UpdateDesiredNodesAction.INSTANCE,
            updateDesiredNodesRequest,
            new RestToXContentListener<>(restChannel)
        );
    }
}