import { FORMAT_GROUPS } from "./variants";
import type { MedusaCart } from "./medusa";

/** All physical SKU suffixes (CD, SACD, LP). */
const PHYSICAL_SUFFIXES = new Set(
  FORMAT_GROUPS.find((g) => g.slug === "physical")?.variants?.map((v) => v.suffix.toUpperCase()) ?? [],
);

/** All digital SKU suffixes. */
const DIGITAL_SUFFIXES = new Set(
  FORMAT_GROUPS.find((g) => g.slug === "digital")
    ?.subgroups?.flatMap((sg) => sg.variants.map((v) => v.suffix.toUpperCase())) ?? [],
);

function skuSuffix(sku: string | null | undefined): string | null {
  if (!sku) return null;
  return sku.split("_").pop()?.toUpperCase() ?? null;
}

export function hasPhysicalItems(cart: MedusaCart): boolean {
  return cart.items.some((item) => {
    const suffix = skuSuffix(item.variant?.sku);
    return suffix !== null && PHYSICAL_SUFFIXES.has(suffix);
  });
}

export function hasDigitalItems(cart: MedusaCart): boolean {
  return cart.items.some((item) => {
    const suffix = skuSuffix(item.variant?.sku);
    return suffix !== null && DIGITAL_SUFFIXES.has(suffix);
  });
}