/*
    * Copyright 2021 TiKV Project Authors.
    *
    * 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 org.tikv.common;
  
  import java.sql.Timestamp;
  import org.joda.time.DateTime;
  
  /** Extend joda DateTime to support micro second */
  public class ExtendedDateTime {
  
    private final DateTime dateTime;
    private final int microsOfMillis;
  
    /**
     * if timestamp = 2019-11-11 11:11:11 123456, then dateTime = 2019-11-11 11:11:11 123
     * microInMillis = 456
     *
     * @param dateTime
     * @param microsOfMillis
     */
    public ExtendedDateTime(DateTime dateTime, int microsOfMillis) {
      this.dateTime = dateTime;
      this.microsOfMillis = microsOfMillis;
    }
  
    public ExtendedDateTime(DateTime dateTime) {
      this.dateTime = dateTime;
      this.microsOfMillis = 0;
    }
  
    public DateTime getDateTime() {
      return dateTime;
    }
  
    public int getMicrosOfSeconds() {
      return dateTime.getMillisOfSecond() * 1000 + microsOfMillis;
    }
  
    public int getMicrosOfMillis() {
      return microsOfMillis;
    }
  
    public Timestamp toTimeStamp() {
      Timestamp timestamp = new Timestamp(dateTime.getMillis() / 1000 * 1000);
      timestamp.setNanos(dateTime.getMillisOfSecond() * 1000000 + microsOfMillis * 1000);
      return timestamp;
    }
  
    public long toEpochMicro() {
      return toTimeStamp().getTime() * 1000 + getMicrosOfMillis();
    }
  }