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

export function toAdminSaleDto({
  sale,
  saleItem,
  inventoryItem,
  saleItems = [saleItem],
  inventoryItems = [inventoryItem],
  netProceedsMinor,
  profitMinor,
  productName,
}) {
  return {
    id: sale.id,
    sellerId: sale.sellerId,
    status: sale.status,
    saleDate: sale.saleDate,
    saleLocation: sale.saleLocation ?? null,
    soldPriceMinor: sale.soldPriceMinor,
    currency: sale.currency,
    platformFeesMinor: sale.platformFeesMinor,
    paymentProcessingFeesMinor: sale.paymentProcessingFeesMinor,
    shippingCostMinor: sale.shippingCostMinor,
    taxesMinor: sale.taxesMinor,
    otherFeesMinor: sale.otherFeesMinor,
    buyerName: sale.buyerName ?? null,
    buyerContact: sale.buyerContact ?? null,
    notes: sale.notes ?? null,
    voidReason: sale.voidReason ?? null,
    voidedAt: toIsoString(sale.voidedAt) ?? null,
    productName: productName ?? null,
    netProceedsMinor: netProceedsMinor ?? null,
    profitMinor: profitMinor ?? null,
    saleItem: {
      id: saleItem.id,
      inventoryItemId: saleItem.inventoryItemId,
      soldPriceMinor: saleItem.soldPriceMinor,
      costBasisMinor: saleItem.costBasisMinor,
    },
    saleItems: saleItems.map((item) => ({
      id: item.id,
      inventoryItemId: item.inventoryItemId,
      soldPriceMinor: item.soldPriceMinor,
      costBasisMinor: item.costBasisMinor,
    })),
    inventoryItem: {
      id: inventoryItem.id,
      status: inventoryItem.status,
    },
    inventoryItems: inventoryItems.map((item) => ({
      id: item.id,
      status: item.status,
    })),
    createdAt: toIsoString(sale.createdAt),
    updatedAt: toIsoString(sale.updatedAt),
  };
}