import { prisma } from "@/lib/prisma";
import { resolveShippingCostCents } from "@/lib/shipping-calc";
import type { ShippingTier } from "@/generated/prisma/client";

export async function getShippingTiers(): Promise<ShippingTier[]> {
  return prisma.shippingTier.findMany({ orderBy: { minQuantity: "asc" } });
}

/** Gesamtmenge = Summe aller Artikelmengen im Warenkorb, nicht pro Position. */
export async function getShippingCostCents(totalQuantity: number): Promise<number> {
  const tiers = await getShippingTiers();
  return resolveShippingCostCents(tiers, totalQuantity);
}