module Cucumber::Messages::TimeConversion

def duration_to_seconds(duration)
  seconds_part = duration.seconds
  nanos_part = duration.nanos.to_f / NANOSECONDS_PER_SECOND
  seconds_part + nanos_part
end

def seconds_to_duration(seconds_float)
  seconds, second_modulus = seconds_float.divmod(1)
  nanos = second_modulus * NANOSECONDS_PER_SECOND
  Duration.new(seconds: seconds, nanos: nanos)
end

def time_to_timestamp(time)
  rational = time.to_r
  Timestamp.new(seconds: rational.numerator, nanos: rational.denominator)
end

def timestamp_to_time(timestamp)
  Time.at(Rational(timestamp.seconds, timestamp.nanos))
end