/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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
 *
 *   https://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.apache.accumulo.test.functional;

import static org.apache.accumulo.core.util.UtilWaitThread.sleepUninterruptibly;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.time.Duration;
import java.util.Collections;
import java.util.concurrent.TimeUnit;

import org.apache.accumulo.core.client.Accumulo;
import org.apache.accumulo.core.client.AccumuloClient;
import org.apache.accumulo.core.client.BatchScanner;
import org.apache.accumulo.core.client.BatchWriter;
import org.apache.accumulo.core.client.BatchWriterConfig;
import org.apache.accumulo.core.client.IteratorSetting;
import org.apache.accumulo.core.client.MutationsRejectedException;
import org.apache.accumulo.core.client.Scanner;
import org.apache.accumulo.core.client.TimedOutException;
import org.apache.accumulo.core.clientImpl.ThriftScanner;
import org.apache.accumulo.core.data.Mutation;
import org.apache.accumulo.core.data.Range;
import org.apache.accumulo.harness.SharedMiniClusterBase;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

public class TimeoutIT extends SharedMiniClusterBase {

  @Override
  protected Duration defaultTimeout() {
    return Duration.ofSeconds(75);
  }

  @BeforeAll
  public static void setup() throws Exception {
    SharedMiniClusterBase.startMiniCluster();
  }

  @AfterAll
  public static void tearDown() throws Exception {
    SharedMiniClusterBase.stopMiniCluster();
  }

  @Test
  public void testBatchWriterTimeout() throws Exception {
    try (AccumuloClient client = Accumulo.newClient().from(getClientProps()).build()) {
      String[] tableNames = getUniqueNames(1);
      String tableName = tableNames[0];
      client.tableOperations().create(tableName);
      client.tableOperations().addConstraint(tableName, SlowConstraint.class.getName());

      // give constraint time to propagate through zookeeper
      sleepUninterruptibly(1, TimeUnit.SECONDS);

      BatchWriter bw = client.createBatchWriter(tableName,
          new BatchWriterConfig().setTimeout(3, TimeUnit.SECONDS));

      Mutation mut = new Mutation("r1");
      mut.put("cf1", "cq1", "v1");

      bw.addMutation(mut);
      var mre =
          assertThrows(MutationsRejectedException.class, bw::close, "batch writer did not timeout");
      if (mre.getCause() instanceof TimedOutException) {
        return;
      }
      throw mre;
    }
  }

  @Test
  public void testBatchScannerTimeout() throws Exception {
    try (AccumuloClient client = Accumulo.newClient().from(getClientProps()).build()) {
      String[] tableNames = getUniqueNames(1);
      String tableName = tableNames[0];
      client.tableOperations().create(tableName);

      try (BatchWriter bw = client.createBatchWriter(tableName)) {
        Mutation m = new Mutation("r1");
        m.put("cf1", "cq1", "v1");
        m.put("cf1", "cq2", "v2");
        m.put("cf1", "cq3", "v3");
        m.put("cf1", "cq4", "v4");
        bw.addMutation(m);
      }

      try (BatchScanner bs = client.createBatchScanner(tableName)) {
        bs.setRanges(Collections.singletonList(new Range()));

        // should not timeout
        bs.setTimeout(5, TimeUnit.SECONDS);
        bs.forEach((k, v) -> {});

        IteratorSetting iterSetting = new IteratorSetting(100, SlowIterator.class);
        iterSetting.addOption("sleepTime", 2000 + "");
        bs.addScanIterator(iterSetting);

        assertThrows(TimedOutException.class, () -> bs.iterator().next(),
            "batch scanner did not time out");
      }
    }
  }

  @Test
  public void testScannerTimeout() throws Exception {
    try (AccumuloClient client = Accumulo.newClient().from(getClientProps()).build()) {
      String[] tableNames = getUniqueNames(1);
      String tableName = tableNames[0];
      client.tableOperations().create(tableName);

      try (BatchWriter bw = client.createBatchWriter(tableName)) {
        Mutation m = new Mutation("r1");
        m.put("cf1", "cq1", "v1");
        m.put("cf1", "cq2", "v2");
        m.put("cf1", "cq3", "v3");
        m.put("cf1", "cq4", "v4");
        bw.addMutation(m);
      }

      try (Scanner scanner = client.createScanner(tableName)) {
        scanner.setRange(new Range());

        // should not timeout
        scanner.setTimeout(5, TimeUnit.SECONDS);
        scanner.forEach((k, v) -> {});

        IteratorSetting iterSetting = new IteratorSetting(100, SlowIterator.class);
        iterSetting.addOption("sleepTime", 6000 + "");
        scanner.addScanIterator(iterSetting);

        var exception = assertThrows(RuntimeException.class, () -> scanner.iterator().next(),
            "scanner did not time out");
        assertEquals(ThriftScanner.ScanTimedOutException.class, exception.getCause().getClass());
      }
    }
  }
}
