added project, material, sources to portal

components/portal/MaterialsSwitcher.tsx

@@ -0,0 +1,59 @@
+// components/portal/MaterialsSwitcher.tsx
+"use client";
+
+import { useRouter, useSearchParams } from "next/navigation";
+import dynamic from "next/dynamic";
+import { cn } from "@/lib/utils";
+
+// Reuse the *existing* canonical pages.
+// Adjust paths if your folders differ.
+const MaterialsPanel = dynamic(() => import("@/app/materials/materials/page"), { ssr: false });
+const CoatingsPanel  = dynamic(() => import("@/app/materials/materials-coatings/page"), { ssr: false });
+
+const TABS = [
+    { key: "materials",         label: "Materials" },
+{ key: "materials-coatings", label: "Coatings" },
+];
+
+function Panel({ tab }: { tab: string }) {
+    switch (tab) {
+        case "materials":          return <MaterialsPanel />;
+        case "materials-coatings": return <CoatingsPanel />;
+        default:                   return <MaterialsPanel />;
+    }
+}
+
+export default function MaterialsSwitcher() {
+    const router = useRouter();
+    const sp = useSearchParams();
+    const active = sp.get("t") || "materials";
+
+    function setTab(nextKey: string) {
+        const q = new URLSearchParams(sp.toString());
+        q.set("t", nextKey);
+        router.replace(`/portal/materials?${q.toString()}`, { scroll: false });
+    }
+
+    return (
+        <div>
+        <div className="mb-4 flex flex-wrap items-center gap-2">
+        {TABS.map(({ key, label }) => (
+            <button
+            key={key}
+            onClick={() => setTab(key)}
+            className={cn(
+                "rounded-md border px-3 py-1.5 text-sm transition",
+                active === key ? "bg-primary text-primary-foreground" : "hover:bg-muted"
+            )}
+            >
+            {label}
+            </button>
+        ))}
+        </div>
+
+        <div className="rounded-md border p-4">
+        <Panel tab={active} />
+        </div>
+        </div>
+    );
+}