lots of fixes. cant remember them all

lib/catalog.ts

@@ -0,0 +1,90 @@
+// app/lib/catalog.ts
+export const API_BASE_URL =
+  process.env.NEXT_PUBLIC_API_BASE_URL ?? "http://localhost:8080";
+
+export type ProductListItem = {
+  id: string;
+  name: string;
+  brand: string;
+  platform: string;
+  partRole: string;
+  categoryKey?: string | null;
+  price?: number | null;
+  buyUrl?: string | null;
+  imageUrl?: string | null;
+  slug?: string | null; // if your API returns it; otherwise we derive it client-side
+};
+
+export type ProductDetail = {
+  id: string;
+  name: string;
+  brand: string;
+  platform: string;
+  partRole: string;
+  rawCategoryKey?: string | null;
+  description?: string | null;
+  shortDescription?: string | null;
+  imageUrl?: string | null;
+  offers?: Array<{
+    merchantName?: string;
+    price?: number | null;
+    buyUrl?: string | null;
+    inStock?: boolean | null;
+  }>;
+};
+
+export function slugify(input: string) {
+  return (input ?? "")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/(^-|-$)/g, "");
+}
+
+/**
+ * Your existing list endpoint:
+ * GET /api/products?platform=AR-15&partRoles=complete-upper
+ */
+export async function fetchProducts(params: {
+  platform: string;
+  partRole: string;
+}) {
+  const { platform, partRole } = params;
+
+  const url =
+    `${API_BASE_URL}/api/products?` +
+    new URLSearchParams({
+      platform,
+      partRoles: partRole,
+    });
+
+  const res = await fetch(url, { cache: "no-store" });
+  if (!res.ok) throw new Error(`Failed to load products (${res.status})`);
+  const data = (await res.json()) as ProductListItem[];
+
+  // Ensure each item has a "productSlug" of the form "{id}-{slugified-name}"
+  return data.map((p) => ({
+    ...p,
+    productSlug: `${p.id}-${slugify(p.name)}`,
+  }));
+}
+
+/**
+ * You likely have (or should add) a detail endpoint like:
+ * GET /api/products/{id}?platform=AR-15   OR  GET /api/products/{id}
+ *
+ * We'll call /api/products/{id} and optionally include platform as a query param.
+ */
+export async function fetchProductById(params: {
+  id: string;
+  platform?: string;
+}) {
+  const { id, platform } = params;
+
+  const url =
+    `${API_BASE_URL}/api/products/${encodeURIComponent(id)}` +
+    (platform ? `?${new URLSearchParams({ platform })}` : "");
+
+  const res = await fetch(url, { cache: "no-store" });
+  if (!res.ok) throw new Error(`Failed to load product (${res.status})`);
+  return (await res.json()) as ProductDetail;
+}