feat(frontend): implemented CSAS button responsiveness

7project/frontend/src/api.ts

@@ -133,6 +133,9 @@ export type User = {
   is_active: boolean;
   is_superuser: boolean;
   is_verified: boolean;
+  // Optional JSON config object for user-level integrations and settings
+  // Example: { csas: "{\"expires_at\": 1761824615, ...}" } or { csas: { expires_at: 1761824615, ... } }
+  config?: Record<string, any> | null;
 };
 
 export async function getMe(): Promise<User> {

7project/frontend/src/pages/Dashboard.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useMemo, useState, useCallback } from 'react';
-import { type Category, type Transaction, type BalancePoint, deleteTransaction, getCategories, getTransactions, createTransaction, updateTransaction, getBalanceSeries } from '../api';
+import { type Category, type Transaction, type BalancePoint, type User, getMe, deleteTransaction, getCategories, getTransactions, createTransaction, updateTransaction, getBalanceSeries } from '../api';
 import AccountPage from './AccountPage';
 import AppearancePage from './AppearancePage';
 import BalanceChart from './BalanceChart';
@@ -118,6 +118,49 @@ export default function Dashboard({ onLogout }: { onLogout: () => void }) {
   const [isMockModalOpen, setMockModalOpen] = useState(false);
   const [isGenerating, setIsGenerating] = useState(false);
 
+  // Current user and CSAS connection status
+  const [me, setMe] = useState<User | null>(null);
+  const [csasConnected, setCsasConnected] = useState(false);
+
+  useEffect(() => {
+    (async () => {
+      try {
+        const u = await getMe();
+        setMe(u);
+        // Determine CSAS connection validity
+        const csas = (u as any)?.config?.csas;
+        let obj: any = null;
+        if (csas) {
+          if (typeof csas === 'string') {
+            try { obj = JSON.parse(csas); } catch {}
+          } else if (typeof csas === 'object') {
+            obj = csas;
+          }
+        }
+        let exp: number | null = null;
+        const raw = obj?.expires_at;
+        if (typeof raw === 'number') {
+          exp = raw;
+        } else if (typeof raw === 'string') {
+          const asNum = Number(raw);
+          if (!Number.isNaN(asNum)) {
+            exp = asNum;
+          } else {
+            const ms = Date.parse(raw);
+            if (!Number.isNaN(ms)) exp = Math.floor(ms / 1000);
+          }
+        }
+        if (exp && exp > Math.floor(Date.now() / 1000)) {
+          setCsasConnected(true);
+        } else {
+          setCsasConnected(false);
+        }
+      } catch (e) {
+        // ignore, user may not be loaded; keep button enabled
+      }
+    })();
+  }, []);
+
   // Start CSAS (George) OAuth after login
   async function startOauthCsas() {
     const base = BACKEND_URL.replace(/\/$/, '');
@@ -364,7 +407,7 @@ export default function Dashboard({ onLogout }: { onLogout: () => void }) {
                   <h3>Bank connections</h3>
                   <div className="connection-row">
                     <p className="muted" style={{ margin: 0 }}>Connect your CSAS (George) account.</p>
-                    <button className="btn primary" onClick={startOauthCsas}>Connect CSAS (George)</button>
+                    <button className="btn primary" onClick={startOauthCsas} disabled={csasConnected}>{csasConnected ? 'Successfully connected to CSAS' : 'Connect CSAS (George)'}</button>
                   </div>
                   <div className="connection-row">
                     <p className="muted" style={{ margin: 0 }}>Generate data from a mock bank.</p>