Function during

packages/effect/src/Schedule.ts:750–760

(duration: Duration.Input)

 * @since 4.0.0
 */
export const during = (duration: Duration.Input): Schedule<Duration.Duration> => {
  const durationMillis = Duration.toMillis(duration)
  return fromStepWithMetadata(
    effect.succeed((meta) => {
      const elapsed = Duration.millis(meta.elapsed)
      return meta.elapsed > durationMillis
        ? Cause.done(elapsed)
        : effect.succeed([elapsed, Duration.zero])
    })
  )
}

/**
 * Combines schedules by recurring while at least one schedule wants to recur,