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/*
 * 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 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 or the Server
 * Side Public License, v 1.
 */

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

import org.elasticsearch.action.admin.indices.alias.IndicesAliasesRequest;
import org.elasticsearch.client.internal.node.NodeClient;
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 org.elasticsearch.xcontent.XContentParser;

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

import static org.elasticsearch.rest.RestRequest.Method.POST;

@ServerlessScope(Scope.PUBLIC)
public class RestIndicesAliasesAction extends BaseRestHandler {

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

    @Override
    public List routes() {
        return List.of(new Route(POST, "/_aliases"));
    }

    @Override
    public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
        IndicesAliasesRequest indicesAliasesRequest = new IndicesAliasesRequest();
        indicesAliasesRequest.masterNodeTimeout(request.paramAsTime("master_timeout", indicesAliasesRequest.masterNodeTimeout()));
        indicesAliasesRequest.timeout(request.paramAsTime("timeout", indicesAliasesRequest.timeout()));
        try (XContentParser parser = request.contentParser()) {
            IndicesAliasesRequest.PARSER.parse(parser, indicesAliasesRequest, null);
        }
        if (indicesAliasesRequest.getAliasActions().isEmpty()) {
            throw new IllegalArgumentException("No action specified");
        }
        return channel -> client.admin().indices().aliases(indicesAliasesRequest, new RestToXContentListener<>(channel));
    }
}