import type { Product } from "@/lib/data";
import {
  catalogProductToCard,
  fetchCatalogProducts,
  fetchStoreItems,
  variantToProduct,
} from "@/lib/store";

export async function loadCategoryProducts(params: {
  page?: number;
  pageSize?: number;
  categoryId?: string;
  name?: string;
}) {
  const page = params.page ?? 1;
  const pageSize = params.pageSize ?? 20;
  const [storeResult, catalogResult] = await Promise.all([
    fetchStoreItems({
      page,
      pageSize,
      categoryId: params.categoryId,
      name: params.name,
    }),
    fetchCatalogProducts({
      page,
      pageSize,
      categoryId: params.categoryId,
      name: params.name,
    }),
  ]);

  const fromStore = storeResult.items.map(variantToProduct);
  const products: Product[] = fromStore.length
    ? fromStore
    : catalogResult.items.map(catalogProductToCard);
  const total = fromStore.length ? storeResult.total : catalogResult.total;
  const resolvedPageSize = fromStore.length ? storeResult.pageSize : catalogResult.pageSize;
  const pageCount = Math.max(1, Math.ceil((total || products.length) / (resolvedPageSize || pageSize)));

  return { products, total, pageCount, pageSize: resolvedPageSize || pageSize };
}