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15 lines
598 B
TypeScript
15 lines
598 B
TypeScript
// Convert `t` param to time. Supports having only seconds (like `?t=192`), but also `3:30` or `1:30:02`
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export function parseTimestamp(str: string | undefined | null): number | null {
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const input = str ?? "";
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const isValid = !!input.match(/^\d+(:\d+)*$/);
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if (!isValid) return null;
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const timeArr = input.split(":").map(Number).reverse();
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const hours = timeArr[2] ?? 0;
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const minutes = Math.min(timeArr[1] ?? 0, 59);
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const seconds = Math.min(timeArr[0] ?? 0, minutes > 0 ? 59 : Infinity);
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const timeInSeconds = hours * 60 * 60 + minutes * 60 + seconds;
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return timeInSeconds;
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}
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