package cs3500.lec04;

/**
 * Durations represented as hours, minutes, and seconds.
 */
public final class HmsDuration extends AbstractDuration {
  /**
   * Constructs a duration in terms of its length in hours, minutes, and
   * seconds.
   *
   * @param hours the number of hours
   * @param minutes the number of minutes
   * @param seconds the number of seconds
   * @throws IllegalArgumentException if any argument is negative
   */
  public HmsDuration(int hours, int minutes, int seconds) {
    this(inSeconds(hours, minutes, seconds));
    ensureHms(hours, minutes, seconds);
  }

  /**
   * Constructs a duration in terms of its length in seconds.
   *
   * @param inSeconds the number of seconds (non-negative)
   * @throws IllegalArgumentException {@code inSeconds} is negative
   */
  public HmsDuration(long inSeconds) {
    if (inSeconds < 0) {
      throw new IllegalArgumentException("must be non-negative");
    }

    seconds = secondsOf(inSeconds);
    minutes = minutesOf(inSeconds);
    hours   = hoursOf(inSeconds);
  }

  private final int hours;
  private final int minutes;
  private final int seconds;

  @Override
  protected AbstractDuration fromSeconds(long seconds) {
    return new HmsDuration(seconds);
  }

  @Override
  public long inSeconds() {
    return inSeconds(hours, minutes, seconds);
  }

  @Override
  public String asHms() {
    return asHms(hours, minutes, seconds);
  }
}