admin / SAynapse-Horizon

const MONTHS = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
const pad = (n) => String(n).padStart(2, '0')

/** Format an ISO string as `DD-MMM-YYYY HH:mm:ss UTC`. */
export function formatUtc(iso) {
  if (!iso) return '—'
  const d = new Date(iso)
  return `${pad(d.getUTCDate())}-${MONTHS[d.getUTCMonth()]}-${d.getUTCFullYear()} ${pad(
    d.getUTCHours()
  )}:${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())} UTC`
}

/** Short UTC time `HH:mm:ss` for dense rows. */
export function formatUtcTime(iso) {
  if (!iso) return '—'
  const d = new Date(iso)
  return `${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())}`
}

/** Compact human-relative age, e.g. "just now", "4m ago", "2h ago". */
export function relativeAge(iso, now = Date.now()) {
  if (!iso) return '—'
  const diff = Math.max(0, now - new Date(iso).getTime())
  const s = Math.floor(diff / 1000)
  if (s < 45) return 'just now'
  const m = Math.floor(s / 60)
  if (m < 60) return `${m}m ago`
  const h = Math.floor(m / 60)
  if (h < 24) return `${h}h ago`
  return `${Math.floor(h / 24)}d ago`
}