/**
 * Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * Licensed 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 com.linkedin.pinot.segments.v1.creator;

import java.io.File;
import java.util.concurrent.TimeUnit;

import org.apache.avro.Schema.Field;
import org.apache.avro.file.DataFileStream;
import org.apache.avro.generic.GenericRecord;
import org.apache.commons.io.FileUtils;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;

import com.linkedin.pinot.core.indexsegment.generator.SegmentGeneratorConfig;
import com.linkedin.pinot.core.indexsegment.utils.AvroUtils;
import com.linkedin.pinot.core.segment.creator.SegmentIndexCreationDriver;
import com.linkedin.pinot.core.segment.creator.impl.SegmentCreationDriverFactory;
import com.linkedin.pinot.util.TestUtils;


public class BlocksTest {

  private static final String AVRO_DATA = "data/test_data-mv.avro";
  private static File INDEX_DIR = new File(FileUtils.getTempDirectory() + File.separator
      + IntArraysTest.class.getName());

  @AfterClass
  public static void cleanup() {
    FileUtils.deleteQuietly(INDEX_DIR);
  }

  @BeforeClass
  public static void before() throws Exception {
    final String filePath = TestUtils.getFileFromResourceUrl(BlocksTest.class.getClassLoader().getResource(AVRO_DATA));
    if (INDEX_DIR.exists()) {
      FileUtils.deleteQuietly(INDEX_DIR);
    }

//    System.out.println(INDEX_DIR.getAbsolutePath());
    final SegmentIndexCreationDriver driver = SegmentCreationDriverFactory.get(null);

    final SegmentGeneratorConfig config =
        SegmentTestUtils.getSegmentGenSpecWithSchemAndProjectedColumns(new File(filePath), INDEX_DIR, "daysSinceEpoch",
            TimeUnit.DAYS, "test");
    config.setTimeColumnName("daysSinceEpoch");
    driver.init(config);
    driver.build();

    final DataFileStream<GenericRecord> avroReader = AvroUtils.getAvroReader(new File(filePath));
    final org.apache.avro.Schema avroSchema = avroReader.getSchema();
    final String[] columns = new String[avroSchema.getFields().size()];
    int i = 0;
    for (final Field f : avroSchema.getFields()) {
      columns[i] = f.name();
      i++;
    }
  }
}