/** Human-readable label for a FunZone event name (wallet → کیف پول). */
export function formatEventName(eventName: string | null | undefined): string {
  if (!eventName?.trim()) return '—'
  return eventName.toLowerCase() === 'wallet' ? 'کیف پول' : eventName.trim()
}

/** Raw event name stored on records (wallet stays as wallet). */
export function normalizeEventName(value: string): string {
  const trimmed = value.trim()
  if (!trimmed) return ''
  if (trimmed === 'کیف پول') return 'wallet'
  return trimmed
}

/** Parses event name from a FunZone treasury import description block. */
export function eventNameFromTreasuryDescription(description: string): string | undefined {
  const line = description.split('\n').find((l) => l.startsWith('رویداد:'))
  if (!line) return undefined
  const raw = line.replace(/^رویداد:\s*/, '').trim()
  if (!raw || raw === '—') return undefined
  return raw === 'کیف پول' ? 'wallet' : raw
}

/** Event label with category context for accounting "regarding" fields. */
export function eventNameWithCategory(
  eventName: string | null | undefined,
  categoryName: string | null | undefined,
): string {
  const rawEvent = eventName?.trim() ?? ''
  const rawCategory = categoryName?.trim() ?? ''
  if (!rawEvent) return ''
  if (rawEvent.toLowerCase() === 'wallet') return 'wallet'
  if (!rawCategory) return rawEvent
  return `${rawEvent} (${rawCategory})`
}