/** Formatação compartilhada (moeda/data pt-BR) — Etapa 15 em diante. */

const currencyFormatter = new Intl.NumberFormat('pt-BR', {
  style: 'currency',
  currency: 'BRL',
});

const dateFormatter = new Intl.DateTimeFormat('pt-BR', { dateStyle: 'short' });
const dateTimeFormatter = new Intl.DateTimeFormat('pt-BR', { dateStyle: 'short', timeStyle: 'short' });

/** Aceita `string`/`number` (a API devolve `Decimal` do Prisma como string). */
export function formatCurrency(value: string | number | null | undefined): string {
  if (value === null || value === undefined) return '—';
  const numeric = typeof value === 'string' ? Number(value) : value;
  if (Number.isNaN(numeric)) return '—';
  return currencyFormatter.format(numeric);
}

export function formatDate(value: string | Date | null | undefined): string {
  if (!value) return '—';
  const date = typeof value === 'string' ? new Date(value) : value;
  if (Number.isNaN(date.getTime())) return '—';
  return dateFormatter.format(date);
}

export function formatDateTime(value: string | Date | null | undefined): string {
  if (!value) return '—';
  const date = typeof value === 'string' ? new Date(value) : value;
  if (Number.isNaN(date.getTime())) return '—';
  return dateTimeFormatter.format(date);
}