simple login/checkauth/main app components

src/App.jsx

@@ -1,38 +1,63 @@
-import { useState } from 'react'
+import { useState, useEffect } from 'react'
 import reactLogo from './assets/react.svg'
 import viteLogo from '/vite.svg'
 import './App.css'
+
 import Login from './components/login.jsx'
+import MainApp from './components/MainApp.jsx'
 
+export default function App() {
+  const [loading, setLoading] = useState(true); // true while checking auth
+  const [loggedIn, setLoggedIn] = useState(false);
 
-function App() {
-  const [count, setCount] = useState(0)
+  useEffect(() => {
+    async function checkAuth() {
+      try {
+        // This endpoint should validate the refresh token cookie and return an access token
+        const res = await fetch("http://localhost:7080/auth/login_refresh_token", {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+            "User-Agent": "react-app",
+          },
+          credentials: "include", // send cookies automatically
+          body: JSON.stringify({
+            device_id : "147ac10b-58cc-4372-a567-0e02b2c3d479", // or persistent device ID
+          }),
+        });
+        console.log("sent checkAuth request")
+        if (!res.ok) {
+          console.log(res)
+          console.log("checkAuth request not ok")
+          // No valid refresh token → user must log in
+          setLoggedIn(false);
+        } else {
+          // Got short-lived access token
+          console.log("Got short-lived access token")
+          const data = await res.json();
+          console.log(data)
+          localStorage.setItem("access_tokens", JSON.stringify(data.tokens)); // store for API calls
+          setLoggedIn(true);
+        }
+      } catch (err) {
+        console.error("Auth check failed:", err);
+        setLoggedIn(false);
+      } finally {
+        setLoading(false);
+      }
+    }
 
-  return (
-    <>
-      <div>
-        <a href="https://vite.dev" target="_blank">
-          <img src={viteLogo} className="logo" alt="Vite logo" />
-        </a>
-        <a href="https://react.dev" target="_blank">
-          <img src={reactLogo} className="logo react" alt="React logo" />
-        </a>
-      </div>
-      <h1>Vite + React</h1>
-      <div className="card">
-        <button onClick={() => setCount((count) => count + 1)}>
-          count is {count}
-        </button>
-        <p>
-          Edit <code>src/App.jsx</code> and save to test HMR
-        </p>
-      </div>
-      <p className="read-the-docs">
-        Click on the Vite and React logos to learn more
-      </p>
-      <Login />
-    </>
-  )
+    checkAuth();
+  }, []);
+
+  if (loading) return <p>Loading...</p>; // can show a spinner
+
+  // Show main app if logged in, otherwise show login
+  return loggedIn ? (
+    <MainApp />
+  ) : (
+    <Login onLogin={() => setLoggedIn(true)} />
+  );
 }
 
-export default App
+//export default App