fix: fixed cronExpressionRepeatingEveryNMinutes

- fixed issue where cronExpressionRepeatingEveryNMinutes generated an expression that did not handle values larger than 60 properly

apps/demo-api/src/app/function/model/schedule.functions.ts

@@ -4,7 +4,7 @@ import { onScheduleWithDemoNestContext } from '../function';
 // MARK: Example
 export const demoExampleUsageOfSchedule = onScheduleWithDemoNestContext(
   {
-    cron: '* */1 * * *' // Once every hour on the hour
+    cron: 60 // Once every hour on the hour
   },
   exampleUsageOfSchedule
 );

packages/util/src/lib/value/cron.ts

@@ -1,10 +1,35 @@
-import { Minutes } from '../date/date';
+import { Hours, Minutes } from '../date/date';
+import { Maybe } from './maybe.type';
 
 /**
  * A cron schedule expression string
  */
 export type CronExpression = string;
 
-export function cronExpressionRepeatingEveryNMinutes(minutes: Minutes): CronExpression {
-  return `*/${minutes} * * * *`; // every nth minute
+/**
+ * Creates a CronExpression for the input number of minutes.
+ *
+ * Note that if the number of minutes is greater than 60, it will generate an expression that
+ * isn't exactly n number of minutes apart from the previous execution, but instead create
+ * an expression that is n/60 hours apart and take place on the n%60th minute.
+ *
+ * @param inputMinutes
+ * @returns
+ */
+export function cronExpressionRepeatingEveryNMinutes(inputMinutes: Minutes): CronExpression {
+  let minutes: Minutes;
+  let hours: Maybe<Hours>;
+
+  let expression: CronExpression;
+
+  if (inputMinutes >= 60) {
+    hours = Math.floor(inputMinutes / 60);
+    minutes = inputMinutes % 60;
+
+    expression = `${minutes} */${hours} * * *`; // every nth hour at the given minute
+  } else {
+    expression = `*/${inputMinutes} * * * *`; // every nth minute
+  }
+
+  return expression;
 }

setup/templates/apps/api/src/app/function/model/schedule.functions.ts

@@ -4,7 +4,7 @@ import { onScheduleWithAPP_CODE_PREFIXNestContext } from '../function';
 // MARK: Example
 export const APP_CODE_PREFIX_LOWERExampleUsageOfSchedule = onScheduleWithAPP_CODE_PREFIXNestContext(
   {
-    cron: '* */1 * * *' // Once every hour on the hour
+    cron: 60 // Once every hour on the hour
   },
   exampleUsageOfSchedule
 );