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

package org.opensearch.search;

import org.apache.lucene.tests.util.English;
import org.opensearch.action.index.IndexRequestBuilder;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.common.settings.Settings;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.test.OpenSearchIntegTestCase;
import org.opensearch.test.OpenSearchIntegTestCase.ClusterScope;

import java.util.concurrent.ExecutionException;

import static org.opensearch.index.query.QueryBuilders.matchAllQuery;
import static org.opensearch.test.OpenSearchIntegTestCase.Scope.SUITE;
import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertHitCount;
import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertNoFailures;

@ClusterScope(scope = SUITE)
public class StressSearchServiceReaperIT extends OpenSearchIntegTestCase {

    @Override
    protected Settings nodeSettings(int nodeOrdinal) {
        // very frequent checks
        return Settings.builder()
            .put(super.nodeSettings(nodeOrdinal))
            .put(SearchService.KEEPALIVE_INTERVAL_SETTING.getKey(), TimeValue.timeValueMillis(1))
            .build();
    }

    // see issue #5165 - this test fails each time without the fix in pull #5170
    public void testStressReaper() throws ExecutionException, InterruptedException {
        int num = randomIntBetween(100, 150);
        IndexRequestBuilder[] builders = new IndexRequestBuilder[num];
        for (int i = 0; i < builders.length; i++) {
            builders[i] = client().prepareIndex("test").setId("" + i).setSource("f", English.intToEnglish(i));
        }
        createIndex("test");
        indexRandom(true, builders);
        final int iterations = scaledRandomIntBetween(500, 1000);
        for (int i = 0; i < iterations; i++) {
            SearchResponse searchResponse = client().prepareSearch("test").setQuery(matchAllQuery()).setSize(num).get();
            assertNoFailures(searchResponse);
            assertHitCount(searchResponse, num);
        }
    }
}