// Locale-independent post-date formatting. Uses a fixed month table and
// UTC getters so the rendered string never varies by browser/CI locale
// or timezone (toLocaleDateString would make tests flaky).

const MONTHS = [
  'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
  'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
]

export function formatPostDate(iso) {
  if (!iso) return null
  const d = new Date(iso)
  if (isNaN(d.getTime())) return null
  return `${MONTHS[d.getUTCMonth()]} ${d.getUTCDate()}, ${d.getUTCFullYear()}`
}