Function parseCronToHumanReadable

apps/sim/lib/workflows/schedules/utils.ts:513–536

(cronExpression: string, timezone?: string)

 * @returns Human-readable description of the schedule
 */
export const parseCronToHumanReadable = (cronExpression: string, timezone?: string): string => {
  try {
    const forDisplay = cronExpression.replace(/([0-7])#L\b/g, '$1L')
    const baseDescription = cronstrue
      .toString(forDisplay, {
        use24HourTimeFormat: false,
        verbose: false,
      })
      .replace(/\b0(\d:\d{2})/g, '$1')

    if (timezone && timezone !== 'UTC') {
      const tzAbbr = getTimezoneAbbreviation(timezone)
      return `${baseDescription} (${tzAbbr})`
    }

    return baseDescription
  } catch (error) {
    logger.warn('Failed to parse cron expression with cronstrue:', {
      cronExpression,
      error: toError(error).message,
    })
    return `Schedule: ${cronExpression}${timezone && timezone !== 'UTC' ? ` (${getTimezoneAbbreviation(timezone)})` : ''}`
  }
}

const REVERSE_DAY_MAP: Record<number, string> = {
  0: 'SUN',