Fix validation fo google tokens

src/routes/private/api/gmail/+server.ts

@@ -60,5 +60,24 @@ export const POST: RequestHandler = async ({ request }) => {
 		}
 	}
 
+	/* validate token */
+	if (action === 'validate') {
+		if (!refreshToken) {
+			console.log('No refreshToken provided');
+			return json({ valid: false });
+		}
+		try {
+			console.log('Validating refreshToken:', refreshToken);
+			const oAuth2Client = getOAuthClient();
+			oAuth2Client.setCredentials({ refresh_token: refreshToken });
+			await oAuth2Client.getAccessToken(); // This will throw if invalid
+			console.log('Token is valid');
+			return json({ valid: true });
+		} catch (err) {
+			console.error('Token validation error:', err);
+			return json({ valid: false, error: (err as Error).message });
+		}
+	}
+
 	return new Response('Bad request', { status: 400 });
 };

src/routes/private/creator/+page.svelte

@@ -9,9 +9,21 @@
 	let subject = '';
 	let body = '';
 
-	onMount(() => {
+	async function validateToken(token: string): Promise<boolean> {
+		if (!token) return false;
+		const res = await fetch('/private/api/gmail', {
+			method: 'POST',
+			headers: { 'Content-Type': 'application/json' },
+			body: JSON.stringify({ action: 'validate', refreshToken: token })
+		});
+		if (!res.ok) return false;
+		const data = await res.json();
+		return !!data.valid;
+	}
+
+	onMount(async () => {
 		refreshToken = localStorage.getItem('gmail_refresh_token') ?? '';
-		authorized = !!refreshToken;
+		authorized = await validateToken(refreshToken);
 	});
 
 	/* ⇢ redirects straight to Google via server 302 */