/*
 * 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.iotdb.db.query.reader.series;

import org.apache.iotdb.db.engine.querycontext.QueryDataSource;
import org.apache.iotdb.db.engine.storagegroup.TsFileResource;
import org.apache.iotdb.db.exception.StorageEngineException;
import org.apache.iotdb.db.exception.metadata.MetadataException;
import org.apache.iotdb.db.exception.query.PathException;
import org.apache.iotdb.db.query.context.QueryContext;
import org.apache.iotdb.tsfile.exception.write.WriteProcessException;
import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
import org.apache.iotdb.tsfile.read.common.Path;
import org.apache.iotdb.tsfile.write.schema.MeasurementSchema;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import static org.apache.iotdb.db.conf.IoTDBConstant.PATH_SEPARATOR;

public class SeriesReaderByTimestampTest {

  private static final String SERIES_READER_TEST_SG = "root.seriesReaderTest";
  private List<String> deviceIds = new ArrayList<>();
  private List<MeasurementSchema> measurementSchemas = new ArrayList<>();

  private List<TsFileResource> seqResources = new ArrayList<>();
  private List<TsFileResource> unseqResources = new ArrayList<>();

  @Before
  public void setUp() throws MetadataException, PathException, IOException, WriteProcessException {
    SeriesReaderTestUtil.setUp(measurementSchemas, deviceIds, seqResources, unseqResources);
  }

  @After
  public void tearDown() throws IOException, StorageEngineException {
    SeriesReaderTestUtil.tearDown(seqResources, unseqResources);
  }

  @Test
  public void test() throws IOException {
    QueryDataSource dataSource = new QueryDataSource(
      new Path(SERIES_READER_TEST_SG + PATH_SEPARATOR + "device0", "sensor0"),
      seqResources, unseqResources);

    Set<String> allSensors = new HashSet<>();
    allSensors.add("sensor0");

    SeriesReaderByTimestamp seriesReader = new SeriesReaderByTimestamp(
      new Path(SERIES_READER_TEST_SG + PATH_SEPARATOR + "device0", "sensor0"), allSensors,
      TSDataType.INT32, new QueryContext(), dataSource, null);

    for (int time = 0; time < 500; time++) {
      Integer value = (Integer) seriesReader.getValueInTimestamp(time);
      if (time < 200) {
        Assert.assertEquals(time + 20000, value.intValue());
      } else if (time < 260 || (time >= 300 && time < 380) || (time >= 400)) {
        Assert.assertEquals(time + 10000, value.intValue());
      } else {
        Assert.assertEquals(time, value.intValue());
      }
    }
  }
}
