/*
 * 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.index.shard;

import org.opensearch.cluster.metadata.IndexMetadata;
import org.opensearch.core.index.shard.ShardId;
import org.opensearch.core.index.Index;
import org.opensearch.test.OpenSearchTestCase;

public class ShardIdTests extends OpenSearchTestCase {

    public void testShardIdFromString() {
        String indexName = randomAlphaOfLengthBetween(3, 50);
        int shardId = randomInt();
        ShardId id = ShardId.fromString("[" + indexName + "][" + shardId + "]");
        assertEquals(indexName, id.getIndexName());
        assertEquals(shardId, id.getId());
        assertEquals(indexName, id.getIndex().getName());
        assertEquals(IndexMetadata.INDEX_UUID_NA_VALUE, id.getIndex().getUUID());

        id = ShardId.fromString("[some]weird[0]Name][-125]");
        assertEquals("some]weird[0]Name", id.getIndexName());
        assertEquals(-125, id.getId());
        assertEquals("some]weird[0]Name", id.getIndex().getName());
        assertEquals(IndexMetadata.INDEX_UUID_NA_VALUE, id.getIndex().getUUID());

        String badId = indexName + "," + shardId; // missing separator
        IllegalArgumentException ex = expectThrows(IllegalArgumentException.class, () -> ShardId.fromString(badId));
        assertEquals("Unexpected shardId string format, expected [indexName][shardId] but got " + badId, ex.getMessage());

        String badId2 = indexName + "][" + shardId + "]"; // missing opening bracket
        ex = expectThrows(IllegalArgumentException.class, () -> ShardId.fromString(badId2));

        String badId3 = "[" + indexName + "][" + shardId; // missing closing bracket
        ex = expectThrows(IllegalArgumentException.class, () -> ShardId.fromString(badId3));
    }

    public void testEquals() {
        Index index1 = new Index("a", "a");
        Index index2 = new Index("a", "b");
        ShardId shardId1 = new ShardId(index1, 0);
        ShardId shardId2 = new ShardId(index1, 0);
        ShardId shardId3 = new ShardId(index2, 0);
        ShardId shardId4 = new ShardId(index1, 1);
        String s = "Some random other object";
        assertEquals(shardId1, shardId1);
        assertEquals(shardId1, shardId2);
        assertNotEquals(shardId1, null);
        assertNotEquals(shardId1, s);
        assertNotEquals(shardId1, shardId3);
        assertNotEquals(shardId1, shardId4);
    }
}