18 lines
442 B
TypeScript
18 lines
442 B
TypeScript
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const DURATION_PATTERN = /^(\d+)(ms|s|m|h)$/;
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const UNIT_MS: Record<string, number> = {
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ms: 1,
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s: 1_000,
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m: 60_000,
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h: 3_600_000,
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};
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export function parseDuration(value: string): number {
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const match = DURATION_PATTERN.exec(value.trim());
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if (!match) {
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throw new Error(`Invalid duration "${value}" (expected e.g. "500ms", "5s", "1m", "1h")`);
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}
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const [, amount, unit] = match;
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return Number(amount) * UNIT_MS[unit];
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}
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