/*
 * 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.engine.merge;

import org.apache.iotdb.db.conf.IoTDBDescriptor;
import org.apache.iotdb.db.constant.TestConstant;
import org.apache.iotdb.db.engine.merge.manage.MergeResource;
import org.apache.iotdb.db.engine.merge.task.MergeTask;
import org.apache.iotdb.db.service.IoTDB;
import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding;

import org.apache.commons.io.FileUtils;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

public class MergePerfTest extends MergeTest {

  private long timeConsumption;
  private boolean fullMerge;
  private File tempSGDir;

  public void test() throws Exception {
    IoTDB.metaManager.init();
    tempSGDir = new File(TestConstant.BASE_OUTPUT_PATH.concat("tempSG"));
    tempSGDir.mkdirs();
    setUp();
    timeConsumption = System.currentTimeMillis();
    MergeResource resource = new MergeResource(seqResources, unseqResources);
    resource.setCacheDeviceMeta(true);
    MergeTask mergeTask =
        new MergeTask(
            resource, tempSGDir.getPath(), (k, v, l) -> {}, "test", fullMerge, 100, MERGE_TEST_SG);
    mergeTask.call();
    timeConsumption = System.currentTimeMillis() - timeConsumption;
    tearDown();
    FileUtils.deleteDirectory(tempSGDir);
  }

  public static void main(String[] args) throws Exception {
    IoTDBDescriptor.getInstance().getConfig().setMergeChunkPointNumberThreshold(-1);

    List<Long> timeConsumptions = new ArrayList<>();
    MergePerfTest perfTest = new MergePerfTest();

    perfTest.seqFileNum = 5;
    perfTest.unseqFileNum = 5;
    perfTest.measurementNum = 100;
    perfTest.deviceNum = 10;
    perfTest.ptNum = 5000;
    perfTest.flushInterval = 1000;
    perfTest.fullMerge = true;
    perfTest.encoding = TSEncoding.PLAIN;

    for (int i = 0; i < 1; i++) {
      // cache warm-up
      perfTest.test();
    }

    //    int[] intParameters = new int[10];
    //    for (int i = 1; i <= 10; i++) {
    //      intParameters[i-1] = i;
    //    }
    //    for (int param : intParameters) {
    //      perfTest.unseqFileNum = param;
    //      perfTest.test();
    //      timeConsumptions.add(perfTest.timeConsumption);
    //    }
    //    long[] longParameters = new long[10];
    //    for (int i = 1; i <= 10; i++) {
    //      longParameters[i-1] = i * 200;
    //    }
    //    for (long param : longParameters) {
    //      perfTest.flushInterval = param;
    //      perfTest.test();
    //      timeConsumptions.add(perfTest.timeConsumption);
    //    }
    //    double[] doubleParameters = new double[10];
    //    for (int i = 1; i <= 10; i++) {
    //      doubleParameters[i-1] = 0.1 * i;
    //    }
    //    for (double param : doubleParameters) {
    //      perfTest.unseqRatio = param;
    //      perfTest.test();
    //      timeConsumptions.add(perfTest.timeConsumption);
    //    }

    System.out.println(timeConsumptions);
  }
}
