extension DurationFormat on Duration {
  /// formats the duration using only 2 units
  ///
  /// if the duration is more than 1 hour, it will return `10h 30m`
  /// if the duration is less than 1 hour, it will return `30m 20s`
  /// if the duration is less than 1 minute, it will return `20s`
  String get smartBinaryFormat {
    final hours = inHours;
    final minutes = inMinutes.remainder(60);
    final seconds = inSeconds.remainder(60);
    if (hours > 0) {
      return '${hours}h ${minutes}m';
    } else if (minutes > 0) {
      return '${minutes}m ${seconds}s';
    } else {
      return '${seconds}s';
    }
  }

  String get smartSingleFormat {
    if (inHours > 0) {
      return '${inHours}h';
    } else if (inMinutes > 0) {
      return '${inMinutes}m';
    } else {
      return '${inSeconds}s';
    }
  }
}

extension OnlyTime on DateTime {
  // in format HH:MM:ss
  // padding with 0
  String get time =>
      '${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}:${second.toString().padLeft(2, '0')}';
}