/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * 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.
 */

/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

package org.opensearch.cluster;

import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.common.Priority;
import org.opensearch.common.settings.Settings;
import org.opensearch.test.OpenSearchIntegTestCase;
import org.opensearch.test.OpenSearchIntegTestCase.ClusterScope;
import org.opensearch.test.OpenSearchIntegTestCase.Scope;

import static org.opensearch.test.NodeRoles.nonClusterManagerNode;
import static org.opensearch.test.NodeRoles.nonDataNode;
import static org.hamcrest.Matchers.equalTo;

@ClusterScope(scope = Scope.TEST, numDataNodes = 0)
public class UpdateSettingsValidationIT extends OpenSearchIntegTestCase {
    public void testUpdateSettingsValidation() throws Exception {
        internalCluster().startNodes(nonDataNode(), nonClusterManagerNode(), nonClusterManagerNode());

        createIndex("test");
        NumShards test = getNumShards("test");

        ClusterHealthResponse healthResponse = client().admin()
            .cluster()
            .prepareHealth("test")
            .setWaitForEvents(Priority.LANGUID)
            .setWaitForNodes("3")
            .setWaitForGreenStatus()
            .execute()
            .actionGet();
        assertThat(healthResponse.isTimedOut(), equalTo(false));
        assertThat(healthResponse.getIndices().get("test").getActiveShards(), equalTo(test.totalNumShards));

        client().admin()
            .indices()
            .prepareUpdateSettings("test")
            .setSettings(Settings.builder().put("index.number_of_replicas", 0))
            .execute()
            .actionGet();
        healthResponse = client().admin()
            .cluster()
            .prepareHealth("test")
            .setWaitForEvents(Priority.LANGUID)
            .setWaitForGreenStatus()
            .execute()
            .actionGet();
        assertThat(healthResponse.isTimedOut(), equalTo(false));
        assertThat(healthResponse.getIndices().get("test").getActiveShards(), equalTo(test.numPrimaries));

        try {
            client().admin()
                .indices()
                .prepareUpdateSettings("test")
                .setSettings(Settings.builder().put("index.refresh_interval", ""))
                .execute()
                .actionGet();
            fail();
        } catch (IllegalArgumentException ex) {
            logger.info("Error message: [{}]", ex.getMessage());
        }
    }
}