function toIsoString(value) {
  return value instanceof Date ? value.toISOString() : value;
}

export function toAdminListingDto(listing) {
  return {
    id: listing.id,
    inventoryItemId: listing.inventoryItemId,
    productName: listing.productName,
    categoryId: listing.categoryId,
    conditionId: listing.conditionId,
    askingPriceMinor: listing.askingPriceMinor,
    imageCount: listing.imageCount,
    status: listing.status,
    notes: listing.notes ?? null,
    createdAt: toIsoString(listing.createdAt),
    updatedAt: toIsoString(listing.updatedAt),
  };
}