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

package org.opensearch.operateAllIndices;

import org.opensearch.action.support.DestructiveOperations;
import org.opensearch.cluster.ClusterState;
import org.opensearch.cluster.metadata.IndexMetadata;
import org.opensearch.common.settings.Settings;
import org.opensearch.test.OpenSearchIntegTestCase;
import org.junit.After;

import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertAcked;
import static org.hamcrest.Matchers.equalTo;

public class DestructiveOperationsIT extends OpenSearchIntegTestCase {

    @After
    public void afterTest() {
        Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), (String) null).build();
        assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));
    }

    public void testDeleteIndexIsRejected() throws Exception {
        Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), true).build();
        assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));

        createIndex("index1", "1index");

        // Should succeed, since no wildcards
        assertAcked(client().admin().indices().prepareDelete("1index").get());

        expectThrows(IllegalArgumentException.class, () -> client().admin().indices().prepareDelete("i*").get());
        expectThrows(IllegalArgumentException.class, () -> client().admin().indices().prepareDelete("_all").get());
    }

    public void testDeleteIndexDefaultBehaviour() throws Exception {
        if (randomBoolean()) {
            Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), false).build();
            assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));
        }

        createIndex("index1", "1index");

        if (randomBoolean()) {
            assertAcked(client().admin().indices().prepareDelete("_all").get());
        } else {
            assertAcked(client().admin().indices().prepareDelete("*").get());
        }

        assertThat(client().admin().indices().prepareExists("_all").get().isExists(), equalTo(false));
    }

    public void testCloseIndexIsRejected() throws Exception {
        Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), true).build();
        assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));

        createIndex("index1", "1index");

        // Should succeed, since no wildcards
        assertAcked(client().admin().indices().prepareClose("1index").get());

        expectThrows(IllegalArgumentException.class, () -> client().admin().indices().prepareClose("i*").get());
        expectThrows(IllegalArgumentException.class, () -> client().admin().indices().prepareClose("_all").get());
    }

    public void testCloseIndexDefaultBehaviour() throws Exception {
        if (randomBoolean()) {
            Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), false).build();
            assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));
        }

        createIndex("index1", "1index");

        if (randomBoolean()) {
            assertAcked(client().admin().indices().prepareClose("_all").get());
        } else {
            assertAcked(client().admin().indices().prepareClose("*").get());
        }

        ClusterState state = client().admin().cluster().prepareState().get().getState();
        for (final IndexMetadata indexMetadataObjectObjectCursor : state.getMetadata().indices().values()) {
            assertEquals(IndexMetadata.State.CLOSE, indexMetadataObjectObjectCursor.getState());
        }
    }

    public void testOpenIndexIsRejected() throws Exception {
        Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), true).build();
        assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));

        createIndex("index1", "1index");
        assertAcked(client().admin().indices().prepareClose("1index", "index1").get());

        expectThrows(IllegalArgumentException.class, () -> client().admin().indices().prepareOpen("i*").get());
        expectThrows(IllegalArgumentException.class, () -> client().admin().indices().prepareOpen("_all").get());
    }

    public void testOpenIndexDefaultBehaviour() throws Exception {
        if (randomBoolean()) {
            Settings settings = Settings.builder().put(DestructiveOperations.REQUIRES_NAME_SETTING.getKey(), false).build();
            assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(settings));
        }

        createIndex("index1", "1index");
        assertAcked(client().admin().indices().prepareClose("1index", "index1").get());

        if (randomBoolean()) {
            assertAcked(client().admin().indices().prepareOpen("_all").get());
        } else {
            assertAcked(client().admin().indices().prepareOpen("*").get());
        }

        ClusterState state = client().admin().cluster().prepareState().get().getState();
        for (final IndexMetadata indexMetadataObjectObjectCursor : state.getMetadata().indices().values()) {
            assertEquals(IndexMetadata.State.OPEN, indexMetadataObjectObjectCursor.getState());
        }
    }
}