Init

src/app/api/catalog/resins/route.ts

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+import { NextRequest, NextResponse } from "next/server";
+import type { CatalogBrand, CatalogResponse } from "@/types/catalog.types";
+import { fetchResins } from "@/lib/catalog/shopify";
+import { deduplicateItems } from "@/lib/catalog/cache";
+
+export async function GET(req: NextRequest) {
+  const { searchParams } = req.nextUrl;
+  const brandFilter = searchParams.get("brand")?.toLowerCase();
+  const search = searchParams.get("search")?.toLowerCase();
+
+  try {
+    let items = deduplicateItems(await fetchResins());
+
+    // Build brand summary from unfiltered data
+    const brandMap = new Map<string, number>();
+    for (const p of items) {
+      brandMap.set(p.brand, (brandMap.get(p.brand) ?? 0) + 1);
+    }
+
+    if (brandFilter) {
+      items = items.filter((p) => p.brand.toLowerCase() === brandFilter);
+    }
+
+    if (search) {
+      items = items.filter(
+        (p) =>
+          p.name.toLowerCase().includes(search) ||
+          p.brand.toLowerCase().includes(search) ||
+          (p.color && p.color.toLowerCase().includes(search)) ||
+          (p.resinType && p.resinType.toLowerCase().includes(search)),
+      );
+    }
+
+    const brands: CatalogBrand[] = Array.from(brandMap.entries())
+      .map(([name, count]) => ({
+        id: name.toLowerCase().replace(/[^a-z0-9]/g, "_"),
+        name,
+        type: "resin" as const,
+        itemCount: count,
+      }))
+      .sort((a, b) => a.name.localeCompare(b.name));
+
+    const response: CatalogResponse = { items, brands };
+    return NextResponse.json(response);
+  } catch (error) {
+    console.error("Failed to fetch resin catalog:", error);
+    return NextResponse.json(
+      { items: [], brands: [], error: "Failed to fetch resin data" },
+      { status: 500 },
+    );
+  }
+}