#!/usr/bin/env tsx
/**
* Prints UTC time with optional elapsed minutes from PROMPT_START_TIME.
*/
function parseEnvNumber(value: string | undefined, fallback: number): number {
if (!value) return fallback;
const n = Number(value);
return Number.isFinite(n) ? n : fallback;
}
function parseStart(value: string | undefined): Date | null {
if (!value) return null;
const d = new Date(value);
return Number.isNaN(d.getTime()) ? null : d;
}
function main() {
const now = new Date();
const start = parseStart(process.env.PROMPT_START_TIME);
const targetMin = parseEnvNumber(process.env.TARGET_MINUTES, 45);
const elapsed = start ? (now.getTime() - start.getTime()) / 60000 : null;
const payload = {
utc: now.toISOString(),
elapsed_min: elapsed == null ? null : Number(elapsed.toFixed(2)),
target_min: targetMin,
};
process.stdout.write(`${JSON.stringify(payload, null, 2)}\n`);
}
main();
