39 lines
970 B
TypeScript
39 lines
970 B
TypeScript
/**
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* Get schedule as UTC cron job expression
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* https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/#cron-schedule-syntax
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**/
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export function getUTCSchedule({
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interval,
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minute,
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hour,
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period,
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}: {
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interval: "daily" | "weekly" | "monthly";
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minute: number | string;
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hour: number | string;
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period: "AM" | "PM";
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}): string {
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const localDate = new Date();
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// Convert 12-hr to 24-hr time
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let periodOffset = 0;
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if (hour === 12) {
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if (period === "AM") {
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periodOffset = -12;
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}
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} else if (period === "PM") {
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periodOffset = 12;
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}
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localDate.setHours(+hour + periodOffset);
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localDate.setMinutes(+minute);
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const dayOfMonth = interval === "monthly" ? localDate.getUTCDate() : "*";
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const dayOfWeek = interval === "weekly" ? localDate.getUTCDay() : "*";
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const month = "*";
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const schedule = `${localDate.getUTCMinutes()} ${localDate.getUTCHours()} ${dayOfMonth} ${month} ${dayOfWeek}`;
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return schedule;
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}
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