lmao

frontend/src/hooks/useLicense.ts

@@ -0,0 +1,37 @@
+import { useState, useCallback } from 'react';
+import { apiUrl, authHeaders, assertOk } from '../lib/api';
+
+export function useLicense() {
+  const [checkingOut, setCheckingOut] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const startCheckout = useCallback(async (referralCode?: string) => {
+    setCheckingOut(true);
+    setError(null);
+    try {
+      const body: Record<string, string> = {};
+      if (referralCode) body.referral_code = referralCode;
+
+      const res = await fetch(apiUrl('checkout'), {
+        method: 'POST',
+        ...authHeaders({
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(body),
+        }),
+      });
+      assertOk(res, 'Checkout');
+      const data = await res.json();
+      if (data.url) {
+        window.location.href = data.url;
+      }
+    } catch (err) {
+      const msg = err instanceof Error ? err.message : 'Checkout failed';
+      setError(msg);
+      throw err;
+    } finally {
+      setCheckingOut(false);
+    }
+  }, []);
+
+  return { startCheckout, checkingOut, error };
+}