/** German label helpers for enum values and lookups. */
import { de } from '../strings/de'
import type { Gender, GerbilStatus } from '../api/types'

export function genderLabel(gender: Gender): string {
  return de.pages.gerbils.genderLabels[gender]
}

export function statusLabel(status: GerbilStatus): string {
  return de.pages.gerbils.statusLabels[status]
}

/** Format an ISO date ("YYYY-MM-DD") as German "TT.MM.JJJJ"; null -> dash. */
export function formatDate(iso: string | null | undefined): string {
  if (!iso) return '—'
  const [y, m, d] = iso.split('-')
  if (!y || !m || !d) return iso
  return `${d}.${m}.${y}`
}

/** INBOX-1: ISO-Zeitstempel → "TT.MM.JJJJ, HH:MM" (lokale Zeit, de-DE). */
export function formatDateTime(iso: string): string {
  const date = new Date(iso)
  if (Number.isNaN(date.getTime())) return iso
  return date.toLocaleString('de-DE', {
    day: '2-digit',
    month: '2-digit',
    year: 'numeric',
    hour: '2-digit',
    minute: '2-digit',
  })
}