feat(starter): added workflow_schedule table and helper to convert date to cron expression

lib/utils.ts

@@ -23,3 +23,37 @@ export async function hashSecret(
     .digest('hex')
   return { hash, salt: useSalt }
 }
+
+export function convertScheduleOptionsToCron(
+  scheduleType: string,
+  options: Record<string, string>
+): string {
+  switch (scheduleType) {
+    case 'minutes': {
+      const interval = options.minutesInterval || '15'
+      // For example, if options.minutesStartingAt is provided, use that as the start minute.
+      return `*/${interval} * * * *`
+    }
+    case 'hourly': {
+      // When scheduling hourly, take the specified minute offset
+      return `${options.hourlyMinute || '00'} * * * *`
+    }
+    case 'daily': {
+      // Expected dailyTime in HH:MM
+      const [minute, hour] = (options.dailyTime || '00:09').split(':')
+      return `${minute || '00'} ${hour || '09'} * * *`
+    }
+    case 'monthly': {
+      // Expected monthlyDay and monthlyTime in HH:MM
+      const day = options.monthlyDay || '1'
+      const [minute, hour] = (options.monthlyTime || '00:09').split(':')
+      return `${minute || '00'} ${hour || '09'} ${day} * *`
+    }
+    case 'custom': {
+      // Use the provided cron expression directly
+      return options.cronExpression
+    }
+    default:
+      throw new Error('Unsupported schedule type')
+  }
+}