expect(resolveSlackTimestampMs("1e3")).toBeUndefined();

expect(resolveSlackTimestampMs("Infinity")).toBeUndefined();

});

it("rejects timestamps that would produce unsafe millisecond values", () => {

expect(resolveSlackTimestampMs("9007199254741")).toBeUndefined();

expect(resolveSlackTimestampMs("9007199254740993")).toBeUndefined();

});

});

import { asFiniteNumberInRange, parseStrictFiniteNumber } from "openclaw/plugin-sdk/number-runtime";

const SLACK_TIMESTAMP_RE = /^\d+(?:\.\d+)?$/;

const MAX_SAFE_SLACK_TIMESTAMP_SECONDS = Number.MAX_SAFE_INTEGER / 1000;

export function resolveSlackTimestampMs(ts: string | undefined): number | undefined {

const trimmed = ts?.trim();

if (!trimmed || !SLACK_TIMESTAMP_RE.test(trimmed)) {

return undefined;

}

const parsed = Number(trimmed);

return Number.isFinite(parsed) ? Math.round(parsed * 1000) : undefined;

const seconds = asFiniteNumberInRange(parseStrictFiniteNumber(trimmed), {

min: 0,

max: MAX_SAFE_SLACK_TIMESTAMP_SECONDS,

});

return seconds === undefined ? undefined : Math.round(seconds * 1000);

}