import { useEffect } from 'react';
import { Routes, Route, Navigate } from 'react-router-dom';
import { useAuth } from './contexts/AuthContext';
import { useLanguage } from './contexts/LanguageContext';
import { useBranding } from './contexts/BrandingContext';
import Layout from './components/Layout';
import ProtectedRoute from './components/ProtectedRoute';
import Home from './pages/Home';
import Login from './pages/Login';
import Register from './pages/Register';
import VerifyEmail from './pages/VerifyEmail';
import Dashboard from './pages/Dashboard';
import RoomDetail from './pages/RoomDetail';
import Settings from './pages/Settings';
import Admin from './pages/Admin';
import GuestJoin from './pages/GuestJoin';

export default function App() {
  const { user, loading } = useAuth();
  const { setLanguage } = useLanguage();
  const { appName } = useBranding();

  // Sync language from server when user loads
  useEffect(() => {
    if (user?.language) {
      setLanguage(user.language);
    }
  }, [user?.language, setLanguage]);

  // Update document title with branding
  useEffect(() => {
    document.title = `${appName} - BigBlueButton Frontend`;
  }, [appName]);

  if (loading) {
    return (
      <div className="min-h-screen bg-th-bg flex items-center justify-center">
        <div className="animate-spin rounded-full h-12 w-12 border-4 border-th-accent border-t-transparent" />
      </div>
    );
  }

  return (
    <Routes>
      {/* Public routes */}
      <Route path="/" element={user ? <Navigate to="/dashboard" /> : <Home />} />
      <Route path="/login" element={user ? <Navigate to="/dashboard" /> : <Login />} />
      <Route path="/register" element={user ? <Navigate to="/dashboard" /> : <Register />} />
      <Route path="/verify-email" element={<VerifyEmail />} />
      <Route path="/join/:uid" element={<GuestJoin />} />

      {/* Protected routes */}
      <Route element={<ProtectedRoute><Layout /></ProtectedRoute>}>
        <Route path="/dashboard" element={<Dashboard />} />
        <Route path="/rooms/:uid" element={<RoomDetail />} />
        <Route path="/settings" element={<Settings />} />
        <Route path="/admin" element={<Admin />} />
      </Route>

      {/* Catch all */}
      <Route path="*" element={<Navigate to="/" />} />
    </Routes>
  );
}