Function match

packages/effect/src/Cron.ts:388–422

(cron: Cron, date: DateTime.DateTime.Input)

 * @since 2.0.0
 */
export const match = (cron: Cron, date: DateTime.DateTime.Input): boolean => {
  const parts = dateTime.unsafeMakeZoned(date, {
    timeZone: Option.getOrUndefined(cron.tz)
  }).pipe(dateTime.toParts)

  if (cron.seconds.size !== 0 && !cron.seconds.has(parts.seconds)) {
    return false
  }

  if (cron.minutes.size !== 0 && !cron.minutes.has(parts.minutes)) {
    return false
  }

  if (cron.hours.size !== 0 && !cron.hours.has(parts.hours)) {
    return false
  }

  if (cron.months.size !== 0 && !cron.months.has(parts.month)) {
    return false
  }

  if (cron.days.size === 0 && cron.weekdays.size === 0) {
    return true
  }

  if (cron.weekdays.size === 0) {
    return cron.days.has(parts.day)
  }

  if (cron.days.size === 0) {
    return cron.weekdays.has(parts.weekDay)
  }

  return cron.days.has(parts.day) || cron.weekdays.has(parts.weekDay)
}

const daysInMonth = (date: Date): number =>
  new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth() + 1, 0)).getUTCDate()