47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
import cronValidate from "cron-validate"
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const INPUT_CRON_START = "(Input cron: "
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const ERROR_SWAPS = {
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"smaller than lower limit": "less than",
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"bigger than upper limit": "greater than",
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daysOfMonth: "'days of the month'",
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daysOfWeek: "'days of the week'",
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years: "'years'",
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months: "'months'",
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hours: "'hours'",
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minutes: "'minutes'",
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seconds: "'seconds'",
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}
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function improveErrors(errors: string[]): string[] {
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const finalErrors: string[] = []
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for (let error of errors) {
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if (error.includes(INPUT_CRON_START)) {
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error = error.split(INPUT_CRON_START)[0].trim()
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}
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for (let [oldErr, newErr] of Object.entries(ERROR_SWAPS)) {
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if (error.includes(oldErr)) {
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error = error.replace(new RegExp(oldErr, "g"), newErr)
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}
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}
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finalErrors.push(error)
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}
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return finalErrors
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}
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export function validate(
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cronExpression: string
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): { valid: false; err: string[] } | { valid: true } {
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const result = cronValidate(cronExpression, {
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preset: "npm-node-cron",
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override: {
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useSeconds: false,
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},
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})
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if (!result.isValid()) {
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return { valid: false, err: improveErrors(result.getError()) }
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} else {
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return { valid: true }
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}
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}
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