import { Suspense } from 'react';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import { ReactQueryDevtools } from '@tanstack/react-query-devtools';
import { BrowserRouter, useNavigate } from 'react-router-dom';
import { I18nextProvider } from 'react-i18next';
import { Toaster } from 'react-hot-toast';
import { ErrorBoundary } from './components/layout/ErrorBoundary';
import { LoadingSpinner } from './components/ui';
import { AppRouter } from './router/AppRouter';
import { ThemeProvider } from './contexts/ThemeContext';
import { AuthProvider } from './contexts/AuthContext';
import { SSEProvider } from './contexts/SSEContext';
import { SubscriptionEventsProvider } from './contexts/SubscriptionEventsContext';
import GlobalSubscriptionHandler from './components/auth/GlobalSubscriptionHandler';
import { CookieBanner } from './components/ui/CookieConsent';
import { useTenantInitializer } from './stores/useTenantInitializer';
import i18n from './i18n';

const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      staleTime: 5 * 60 * 1000,
      gcTime: 10 * 60 * 1000,
      retry: 3,
      refetchOnWindowFocus: false,
    },
  },
});

function AppContent() {
  const navigate = useNavigate();

  // Initialize tenant data when user is authenticated or in demo mode
  useTenantInitializer();

  return (
    <>
      <Suspense fallback={<LoadingSpinner overlay />}>
        <AppRouter />
        <GlobalSubscriptionHandler />
        <CookieBanner onPreferencesClick={() => navigate('/cookie-preferences')} />
        <Toaster
          position="top-right"
          toastOptions={{
            duration: 4000,
            style: {
              background: '#363636',
              color: '#fff',
            },
          }}
        />
      </Suspense>
    </>
  );
}

function App() {
  return (
    <ErrorBoundary>
      <QueryClientProvider client={queryClient}>
        <I18nextProvider i18n={i18n}>
          <BrowserRouter
            future={{
              v7_startTransition: true,
              v7_relativeSplatPath: true,
            }}
          >
            <ThemeProvider>
              <AuthProvider>
                <SSEProvider>
                  <SubscriptionEventsProvider>
                    <AppContent />
                  </SubscriptionEventsProvider>
                </SSEProvider>
              </AuthProvider>
            </ThemeProvider>
          </BrowserRouter>
          <ReactQueryDevtools initialIsOpen={false} />
        </I18nextProvider>
      </QueryClientProvider>
    </ErrorBoundary>
  );
}

export default App;
