// Renders a naive local datetime string (e.g. "2026-06-25T14:30:00", no Z/offset)
// as "DD.MM.YYYY HH:MM". Because occurred_at carries no timezone, new Date()
// parses it as local time and the user-typed HH:MM is preserved.
export const formatEventDateTime = (s: string): string => {
  const d = new Date(s)
  if (Number.isNaN(d.getTime())) return s
  return d
    .toLocaleString('de-DE', {
      day: '2-digit',
      month: '2-digit',
      year: 'numeric',
      hour: '2-digit',
      minute: '2-digit',
    })
    // de-DE renders as "25.06.2026, 14:30" — drop the comma to get "25.06.2026 14:30".
    .replace(',', '')
}