/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

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

import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.cluster.snapshots.create.CreateSnapshotRequest;
import org.elasticsearch.action.admin.cluster.snapshots.create.CreateSnapshotResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestXContentBuilder;

import java.io.IOException;

import static org.elasticsearch.client.Requests.createSnapshotRequest;
import static org.elasticsearch.rest.RestRequest.Method.POST;
import static org.elasticsearch.rest.RestRequest.Method.PUT;

/**
 * Creates a new snapshot
 */
public class RestCreateSnapshotAction extends BaseRestHandler {

    @Inject
    public RestCreateSnapshotAction(Settings settings, Client client, RestController controller) {
        super(settings, client);
        controller.registerHandler(PUT, "/_snapshot/{repository}/{snapshot}", this);
        controller.registerHandler(POST, "/_snapshot/{repository}/{snapshot}/_create", this);
    }

    @Override
    public void handleRequest(final RestRequest request, final RestChannel channel) {
        CreateSnapshotRequest createSnapshotRequest = createSnapshotRequest(request.param("repository"), request.param("snapshot"));
        createSnapshotRequest.listenerThreaded(false);
        createSnapshotRequest.source(request.content().toUtf8());
        createSnapshotRequest.masterNodeTimeout(request.paramAsTime("master_timeout", createSnapshotRequest.masterNodeTimeout()));
        createSnapshotRequest.waitForCompletion(request.paramAsBoolean("wait_for_completion", false));
        client.admin().cluster().createSnapshot(createSnapshotRequest, new ActionListener<CreateSnapshotResponse>() {
            @Override
            public void onResponse(CreateSnapshotResponse response) {
                try {

                    XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
                    builder.startObject();
                    response.toXContent(builder, request);
                    builder.endObject();
                    channel.sendResponse(new XContentRestResponse(request, response.status(), builder));
                } catch (IOException e) {
                    onFailure(e);
                }
            }

            @Override
            public void onFailure(Throwable e) {
                try {
                    channel.sendResponse(new XContentThrowableRestResponse(request, e));
                } catch (IOException e1) {
                    logger.error("Failed to send failure response", e1);
                }
            }
        });
    }
}
