/*
 * 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
 *
 *   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.
 */

package org.apache.druid.segment.realtime.appenderator;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Suppliers;
import com.google.common.collect.ImmutableList;
import com.google.inject.Binder;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.name.Names;
import org.apache.druid.data.input.impl.DimensionsSpec;
import org.apache.druid.data.input.impl.JSONParseSpec;
import org.apache.druid.data.input.impl.MapInputRowParser;
import org.apache.druid.data.input.impl.TimestampSpec;
import org.apache.druid.guice.GuiceInjectors;
import org.apache.druid.initialization.Initialization;
import org.apache.druid.java.util.common.Intervals;
import org.apache.druid.java.util.common.granularity.Granularities;
import org.apache.druid.query.DruidProcessingConfig;
import org.apache.druid.query.aggregation.AggregatorFactory;
import org.apache.druid.query.aggregation.CountAggregatorFactory;
import org.apache.druid.query.aggregation.LongSumAggregatorFactory;
import org.apache.druid.segment.column.ColumnConfig;
import org.apache.druid.segment.indexing.DataSchema;
import org.apache.druid.segment.indexing.RealtimeTuningConfig;
import org.apache.druid.segment.indexing.granularity.UniformGranularitySpec;
import org.apache.druid.segment.realtime.FireDepartmentMetrics;
import org.apache.druid.segment.realtime.plumber.Committers;
import org.apache.druid.timeline.partition.LinearShardSpec;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.io.IOException;
import java.util.Map;

public class DefaultOfflineAppenderatorFactoryTest
{
  @Rule
  public TemporaryFolder temporaryFolder = new TemporaryFolder();

  @Test
  public void testBuild() throws IOException, SegmentNotWritableException
  {
    Injector injector = Initialization.makeInjectorWithModules(
        GuiceInjectors.makeStartupInjector(),
        ImmutableList.<Module>of(
            new Module()
            {
              @Override
              public void configure(Binder binder)
              {
                binder.bindConstant().annotatedWith(Names.named("serviceName")).to("druid/tool");
                binder.bindConstant().annotatedWith(Names.named("servicePort")).to(9999);
                binder.bindConstant().annotatedWith(Names.named("tlsServicePort")).to(-1);
                binder.bind(DruidProcessingConfig.class).toInstance(
                    new DruidProcessingConfig()
                    {
                      @Override
                      public String getFormatString()
                      {
                        return "processing-%s";
                      }

                      @Override
                      public int intermediateComputeSizeBytes()
                      {
                        return 100 * 1024 * 1024;
                      }

                      @Override
                      public int getNumThreads()
                      {
                        return 1;
                      }

                      @Override
                      public int columnCacheSizeBytes()
                      {
                        return 25 * 1024 * 1024;
                      }
                    }
                );
                binder.bind(ColumnConfig.class).to(DruidProcessingConfig.class);
              }
            }
        )
    );
    ObjectMapper objectMapper = injector.getInstance(ObjectMapper.class);
    AppenderatorFactory defaultOfflineAppenderatorFactory = objectMapper.readerFor(AppenderatorFactory.class)
                                                                        .readValue("{\"type\":\"offline\"}");

    final Map<String, Object> parserMap = objectMapper.convertValue(
        new MapInputRowParser(
            new JSONParseSpec(
                new TimestampSpec("ts", "auto", null),
                new DimensionsSpec(null, null, null),
                null,
                null,
                null
            )
        ),
        Map.class
    );
    DataSchema schema = new DataSchema(
        "dataSourceName",
        parserMap,
        new AggregatorFactory[]{
            new CountAggregatorFactory("count"),
            new LongSumAggregatorFactory("met", "met")
        },
        new UniformGranularitySpec(Granularities.MINUTE, Granularities.NONE, null),
        null,
        objectMapper
    );

    RealtimeTuningConfig tuningConfig = new RealtimeTuningConfig(
        null,
        75000,
        null,
        null,
        null,
        null,
        temporaryFolder.newFolder(),
        null,
        null,
        null,
        null,
        null,
        null,
        0,
        0,
        null,
        null,
        null,
        null,
        null
    );

    Appenderator appenderator = defaultOfflineAppenderatorFactory.build(
        schema,
        tuningConfig,
        new FireDepartmentMetrics()
    );
    try {
      Assert.assertEquals("dataSourceName", appenderator.getDataSource());
      Assert.assertEquals(null, appenderator.startJob());
      SegmentIdWithShardSpec identifier = new SegmentIdWithShardSpec(
          "dataSourceName",
          Intervals.of("2000/2001"),
          "A",
          new LinearShardSpec(0)
      );
      Assert.assertEquals(0, ((AppenderatorImpl) appenderator).getRowsInMemory());
      appenderator.add(identifier, AppenderatorTest.ir("2000", "bar", 1), Suppliers.ofInstance(Committers.nil()));
      Assert.assertEquals(1, ((AppenderatorImpl) appenderator).getRowsInMemory());
      appenderator.add(identifier, AppenderatorTest.ir("2000", "baz", 1), Suppliers.ofInstance(Committers.nil()));
      Assert.assertEquals(2, ((AppenderatorImpl) appenderator).getRowsInMemory());
      appenderator.close();
      Assert.assertEquals(0, ((AppenderatorImpl) appenderator).getRowsInMemory());
    }
    finally {
      appenderator.close();
    }
  }
}