Function validateScheduleBlock

apps/sim/lib/workflows/schedules/validation.ts:114–169

(block: BlockState)

 * Returns validation result with error details if invalid
 */
export function validateScheduleBlock(block: BlockState): ScheduleValidationResult {
  const scheduleType = getSubBlockValue(block, 'scheduleType')

  if (!scheduleType) {
    return {
      isValid: false,
      error: 'Schedule type is required',
    }
  }

  const hasValidConfig = hasValidScheduleConfig(scheduleType, block)

  if (!hasValidConfig) {
    return {
      isValid: false,
      error: getMissingConfigError(scheduleType),
      scheduleType,
    }
  }

  const timezone = getSubBlockValue(block, 'timezone') || 'UTC'

  try {
    // Get parsed schedule values (safe to use after validation passes)
    const scheduleValues = getScheduleTimeValues(block)
    const sanitizedScheduleValues =
      scheduleType !== 'custom' ? { ...scheduleValues, cronExpression: null } : scheduleValues

    const cronExpression = generateCronExpression(scheduleType, sanitizedScheduleValues)

    const validation = validateCronExpression(cronExpression, timezone)
    if (!validation.isValid) {
      return {
        isValid: false,
        error: `Invalid cron expression: ${validation.error}`,
        scheduleType,
      }
    }

    const nextRunAt = calculateNextRunTime(scheduleType, sanitizedScheduleValues)

    return {
      isValid: true,
      scheduleType,
      cronExpression,
      nextRunAt,
      timezone,
    }
  } catch (error) {
    return {
      isValid: false,
      error: getErrorMessage(error, 'Failed to generate schedule'),
      scheduleType,
    }
  }
}

/**