/**
 * Main App Component - Integrated with Real API
 */

import React, { useState, Suspense } from 'react';
import { useTranslation } from 'react-i18next';
import { BrowserRouter as Router, Routes, Route, Navigate } from 'react-router-dom';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import { useCurrentUser, useMasquerade, useLogout } from './hooks/useAuth';
import { useCurrentBusiness } from './hooks/useBusiness';
import { useUpdateBusiness } from './hooks/useBusiness';
import { setCookie } from './utils/cookies';

// Import Login Page
const LoginPage = React.lazy(() => import('./pages/LoginPage'));
const MFAVerifyPage = React.lazy(() => import('./pages/MFAVerifyPage'));
const OAuthCallback = React.lazy(() => import('./pages/OAuthCallback'));

// Import layouts
import BusinessLayout from './layouts/BusinessLayout';
import PlatformLayout from './layouts/PlatformLayout';
import CustomerLayout from './layouts/CustomerLayout';
import MarketingLayout from './layouts/MarketingLayout';

// Import marketing pages
const HomePage = React.lazy(() => import('./pages/marketing/HomePage'));
const FeaturesPage = React.lazy(() => import('./pages/marketing/FeaturesPage'));
const PricingPage = React.lazy(() => import('./pages/marketing/PricingPage'));
const AboutPage = React.lazy(() => import('./pages/marketing/AboutPage'));
const ContactPage = React.lazy(() => import('./pages/marketing/ContactPage'));
const SignupPage = React.lazy(() => import('./pages/marketing/SignupPage'));
const PrivacyPolicyPage = React.lazy(() => import('./pages/marketing/PrivacyPolicyPage'));
const TermsOfServicePage = React.lazy(() => import('./pages/marketing/TermsOfServicePage'));

// Import pages
const Dashboard = React.lazy(() => import('./pages/Dashboard'));
const Scheduler = React.lazy(() => import('./pages/Scheduler'));
const Customers = React.lazy(() => import('./pages/Customers'));
const Settings = React.lazy(() => import('./pages/Settings'));
const Payments = React.lazy(() => import('./pages/Payments'));
const Resources = React.lazy(() => import('./pages/Resources'));
const Services = React.lazy(() => import('./pages/Services'));
const Staff = React.lazy(() => import('./pages/Staff'));
const CustomerDashboard = React.lazy(() => import('./pages/customer/CustomerDashboard'));
const CustomerSupport = React.lazy(() => import('./pages/customer/CustomerSupport'));
const ResourceDashboard = React.lazy(() => import('./pages/resource/ResourceDashboard'));
const BookingPage = React.lazy(() => import('./pages/customer/BookingPage'));
const TrialExpired = React.lazy(() => import('./pages/TrialExpired'));
const Upgrade = React.lazy(() => import('./pages/Upgrade'));

// Import platform pages
const PlatformDashboard = React.lazy(() => import('./pages/platform/PlatformDashboard'));
const PlatformBusinesses = React.lazy(() => import('./pages/platform/PlatformBusinesses'));
const PlatformSupportPage = React.lazy(() => import('./pages/platform/PlatformSupport'));
const PlatformEmailAddresses = React.lazy(() => import('./pages/platform/PlatformEmailAddresses'));
const PlatformUsers = React.lazy(() => import('./pages/platform/PlatformUsers'));
const PlatformStaff = React.lazy(() => import('./pages/platform/PlatformStaff'));
const PlatformSettings = React.lazy(() => import('./pages/platform/PlatformSettings'));
const ProfileSettings = React.lazy(() => import('./pages/ProfileSettings'));
const VerifyEmail = React.lazy(() => import('./pages/VerifyEmail'));
const EmailVerificationRequired = React.lazy(() => import('./pages/EmailVerificationRequired'));
const AcceptInvitePage = React.lazy(() => import('./pages/AcceptInvitePage'));
const TenantOnboardPage = React.lazy(() => import('./pages/TenantOnboardPage'));
const Tickets = React.lazy(() => import('./pages/Tickets')); // Import Tickets page
const HelpGuide = React.lazy(() => import('./pages/HelpGuide')); // Import Platform Guide page
const HelpTicketing = React.lazy(() => import('./pages/HelpTicketing')); // Import Help page for ticketing
const HelpApiDocs = React.lazy(() => import('./pages/HelpApiDocs')); // Import API documentation page
const HelpPluginDocs = React.lazy(() => import('./pages/help/HelpPluginDocs')); // Import Plugin documentation page
const HelpEmailSettings = React.lazy(() => import('./pages/HelpEmailSettings')); // Import Email settings help page

// Import new help pages
const HelpDashboard = React.lazy(() => import('./pages/help/HelpDashboard'));
const HelpScheduler = React.lazy(() => import('./pages/help/HelpScheduler'));
const HelpTasks = React.lazy(() => import('./pages/help/HelpTasks'));
const HelpCustomers = React.lazy(() => import('./pages/help/HelpCustomers'));
const HelpServices = React.lazy(() => import('./pages/help/HelpServices'));
const HelpResources = React.lazy(() => import('./pages/help/HelpResources'));
const HelpStaff = React.lazy(() => import('./pages/help/HelpStaff'));
const HelpMessages = React.lazy(() => import('./pages/help/HelpMessages'));
const HelpPayments = React.lazy(() => import('./pages/help/HelpPayments'));
const HelpPlugins = React.lazy(() => import('./pages/help/HelpPlugins'));
const HelpSettingsGeneral = React.lazy(() => import('./pages/help/HelpSettingsGeneral'));
const HelpSettingsResourceTypes = React.lazy(() => import('./pages/help/HelpSettingsResourceTypes'));
const HelpSettingsBooking = React.lazy(() => import('./pages/help/HelpSettingsBooking'));
const HelpSettingsAppearance = React.lazy(() => import('./pages/help/HelpSettingsAppearance'));
const HelpSettingsEmail = React.lazy(() => import('./pages/help/HelpSettingsEmail'));
const HelpSettingsDomains = React.lazy(() => import('./pages/help/HelpSettingsDomains'));
const HelpSettingsApi = React.lazy(() => import('./pages/help/HelpSettingsApi'));
const HelpSettingsAuth = React.lazy(() => import('./pages/help/HelpSettingsAuth'));
const HelpSettingsBilling = React.lazy(() => import('./pages/help/HelpSettingsBilling'));
const HelpSettingsQuota = React.lazy(() => import('./pages/help/HelpSettingsQuota'));
const HelpComprehensive = React.lazy(() => import('./pages/help/HelpComprehensive'));
const PlatformSupport = React.lazy(() => import('./pages/PlatformSupport')); // Import Platform Support page (for businesses to contact SmoothSchedule)
const PluginMarketplace = React.lazy(() => import('./pages/PluginMarketplace')); // Import Plugin Marketplace page
const MyPlugins = React.lazy(() => import('./pages/MyPlugins')); // Import My Plugins page
const CreatePlugin = React.lazy(() => import('./pages/CreatePlugin')); // Import Create Plugin page
const Tasks = React.lazy(() => import('./pages/Tasks')); // Import Tasks page for scheduled plugin executions
const EmailTemplates = React.lazy(() => import('./pages/EmailTemplates')); // Import Email Templates page

// Settings pages
const SettingsLayout = React.lazy(() => import('./layouts/SettingsLayout'));
const GeneralSettings = React.lazy(() => import('./pages/settings/GeneralSettings'));
const BrandingSettings = React.lazy(() => import('./pages/settings/BrandingSettings'));
const ResourceTypesSettings = React.lazy(() => import('./pages/settings/ResourceTypesSettings'));
const BookingSettings = React.lazy(() => import('./pages/settings/BookingSettings'));
const CustomDomainsSettings = React.lazy(() => import('./pages/settings/CustomDomainsSettings'));
const ApiSettings = React.lazy(() => import('./pages/settings/ApiSettings'));
const AuthenticationSettings = React.lazy(() => import('./pages/settings/AuthenticationSettings'));
const EmailSettings = React.lazy(() => import('./pages/settings/EmailSettings'));
const CommunicationSettings = React.lazy(() => import('./pages/settings/CommunicationSettings'));
const BillingSettings = React.lazy(() => import('./pages/settings/BillingSettings'));
const QuotaSettings = React.lazy(() => import('./pages/settings/QuotaSettings'));

import { Toaster } from 'react-hot-toast'; // Import Toaster for notifications

const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      refetchOnWindowFocus: false,
      retry: 1,
      staleTime: 30000, // 30 seconds
    },
  },
});

/**
 * Loading Component
 */
const LoadingScreen: React.FC = () => {
  const { t } = useTranslation();
  return (
    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900">
      <div className="text-center">
        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600 mx-auto mb-4"></div>
        <p className="text-gray-600 dark:text-gray-400">{t('common.loading')}</p>
      </div>
    </div>
  );
};

/**
 * Error Component
 */
const ErrorScreen: React.FC<{ error: Error }> = ({ error }) => {
  const { t } = useTranslation();
  return (
    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900">
      <div className="text-center max-w-md">
        <h2 className="text-2xl font-bold text-red-600 dark:text-red-400 mb-4">{t('common.error')}</h2>
        <p className="text-gray-600 dark:text-gray-400 mb-4">{error.message}</p>
        <button
          onClick={() => window.location.reload()}
          className="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700"
        >
          {t('common.reload')}
        </button>
      </div>
    </div>
  );
};

/**
 * App Content - Handles routing based on auth state
 */
const AppContent: React.FC = () => {
  // Check for tokens in URL FIRST - before any queries execute
  // This handles login/masquerade redirects that pass tokens in the URL
  const [processingUrlTokens] = useState(() => {
    const params = new URLSearchParams(window.location.search);
    return !!(params.get('access_token') && params.get('refresh_token'));
  });

  const { data: user, isLoading: userLoading, error: userError } = useCurrentUser();
  const { data: business, isLoading: businessLoading, error: businessError } = useCurrentBusiness();
  const [darkMode, setDarkMode] = useState(() => {
    // Check localStorage first, then system preference
    const saved = localStorage.getItem('darkMode');
    if (saved !== null) {
      return JSON.parse(saved);
    }
    return window.matchMedia('(prefers-color-scheme: dark)').matches;
  });
  const updateBusinessMutation = useUpdateBusiness();
  const masqueradeMutation = useMasquerade();
  const logoutMutation = useLogout();

  // Apply dark mode class and persist to localStorage
  React.useEffect(() => {
    document.documentElement.classList.toggle('dark', darkMode);
    localStorage.setItem('darkMode', JSON.stringify(darkMode));
  }, [darkMode]);

  // Handle tokens in URL (from login or masquerade redirect)
  React.useEffect(() => {
    const params = new URLSearchParams(window.location.search);
    const accessToken = params.get('access_token');
    const refreshToken = params.get('refresh_token');

    if (accessToken && refreshToken) {
      // Extract masquerade stack if present (for masquerade banner)
      const masqueradeStackParam = params.get('masquerade_stack');
      if (masqueradeStackParam) {
        try {
          const masqueradeStack = JSON.parse(decodeURIComponent(masqueradeStackParam));
          localStorage.setItem('masquerade_stack', JSON.stringify(masqueradeStack));
        } catch (e) {
          console.error('Failed to parse masquerade stack', e);
        }
      }

      // For backward compatibility, also check for original_user parameter
      const originalUserParam = params.get('original_user');
      if (originalUserParam && !masqueradeStackParam) {
        try {
          const originalUser = JSON.parse(decodeURIComponent(originalUserParam));
          // Convert old format to new stack format (single entry)
          const stack = [{
            user_id: originalUser.id,
            username: originalUser.username,
            role: originalUser.role,
            business_id: originalUser.business,
            business_subdomain: originalUser.business_subdomain,
          }];
          localStorage.setItem('masquerade_stack', JSON.stringify(stack));
        } catch (e) {
          console.error('Failed to parse original user', e);
        }
      }

      // Set cookies using helper (handles domain correctly)
      setCookie('access_token', accessToken, 7);
      setCookie('refresh_token', refreshToken, 7);

      // Clean URL
      const newUrl = window.location.pathname + window.location.hash;
      window.history.replaceState({}, '', newUrl);

      // Force reload to ensure auth state is picked up
      window.location.reload();
    }
  }, []);

  // Show loading while processing URL tokens (before reload happens)
  if (processingUrlTokens) {
    return <LoadingScreen />;
  }

  // Loading state
  if (userLoading) {
    return <LoadingScreen />;
  }

  // Helper to detect root domain (for marketing site)
  const isRootDomain = (): boolean => {
    const hostname = window.location.hostname;
    // Root domain has no subdomain (just the base domain like smoothschedule.com or lvh.me)
    const parts = hostname.split('.');
    return hostname === 'localhost' || hostname === '127.0.0.1' || parts.length === 2;
  };

  // On root domain, ALWAYS show marketing site (even if logged in)
  // Logged-in users will see a "Go to Dashboard" link in the navbar
  if (isRootDomain()) {
    return (
      <Suspense fallback={<LoadingScreen />}>
        <Routes>
          <Route element={<MarketingLayout user={user} />}>
            <Route path="/" element={<HomePage />} />
            <Route path="/features" element={<FeaturesPage />} />
            <Route path="/pricing" element={<PricingPage />} />
            <Route path="/about" element={<AboutPage />} />
            <Route path="/contact" element={<ContactPage />} />
            <Route path="/signup" element={<SignupPage />} />
            <Route path="/privacy" element={<PrivacyPolicyPage />} />
            <Route path="/terms" element={<TermsOfServicePage />} />
          </Route>
          <Route path="/login" element={<LoginPage />} />
          <Route path="/mfa-verify" element={<MFAVerifyPage />} />
          <Route path="/oauth/callback/:provider" element={<OAuthCallback />} />
          <Route path="/verify-email" element={<VerifyEmail />} />
          <Route path="/accept-invite" element={<AcceptInvitePage />} />
          <Route path="/tenant-onboard" element={<TenantOnboardPage />} />
          <Route path="*" element={<Navigate to="/" replace />} />
        </Routes>
      </Suspense>
    );
  }

  // Not authenticated - redirect to root domain for login if on subdomain
  if (!user) {
    // If on a subdomain, redirect to root domain login page
    const currentHostname = window.location.hostname;
    const hostnameParts = currentHostname.split('.');
    const baseDomain = hostnameParts.length >= 2
      ? hostnameParts.slice(-2).join('.')
      : currentHostname;
    const isRootDomainForUnauthUser = currentHostname === baseDomain || currentHostname === 'localhost';

    if (!isRootDomainForUnauthUser) {
      // Redirect to root domain login (preserve port)
      const protocol = window.location.protocol;
      const port = window.location.port ? `:${window.location.port}` : '';
      window.location.href = `${protocol}//${baseDomain}${port}/login`;
      return <LoadingScreen />;
    }

    return (
      <Suspense fallback={<LoadingScreen />}>
        <Routes>
          <Route element={<MarketingLayout user={user} />}>
            <Route path="/" element={<HomePage />} />
            <Route path="/features" element={<FeaturesPage />} />
            <Route path="/pricing" element={<PricingPage />} />
            <Route path="/about" element={<AboutPage />} />
            <Route path="/contact" element={<ContactPage />} />
            <Route path="/signup" element={<SignupPage />} />
            <Route path="/privacy" element={<PrivacyPolicyPage />} />
            <Route path="/terms" element={<TermsOfServicePage />} />
          </Route>
          <Route path="/login" element={<LoginPage />} />
          <Route path="/mfa-verify" element={<MFAVerifyPage />} />
          <Route path="/oauth/callback/:provider" element={<OAuthCallback />} />
          <Route path="/verify-email" element={<VerifyEmail />} />
          <Route path="/accept-invite" element={<AcceptInvitePage />} />
          <Route path="/tenant-onboard" element={<TenantOnboardPage />} />
          <Route path="*" element={<Navigate to="/" replace />} />
        </Routes>
      </Suspense>
    );
  }

  // Error state
  if (userError) {
    return <ErrorScreen error={userError as Error} />;
  }

  // Subdomain validation for logged-in users
  const currentHostname = window.location.hostname;
  const hostnameParts = currentHostname.split('.');
  const baseDomain = hostnameParts.length >= 2
    ? hostnameParts.slice(-2).join('.')
    : currentHostname;
  const protocol = window.location.protocol;
  const isPlatformDomain = currentHostname === `platform.${baseDomain}`;
  const currentSubdomain = hostnameParts[0];
  const isBusinessSubdomain = !isRootDomain() && !isPlatformDomain && currentSubdomain !== 'api' && currentHostname !== baseDomain;

  const isPlatformUser = ['superuser', 'platform_manager', 'platform_support'].includes(user.role);
  const isBusinessUser = ['owner', 'manager', 'staff', 'resource'].includes(user.role);
  const isCustomer = user.role === 'customer';

  // RULE: Platform users on business subdomains should be redirected to platform subdomain
  if (isPlatformUser && isBusinessSubdomain) {
    const port = window.location.port ? `:${window.location.port}` : '';
    window.location.href = `${protocol}//platform.${baseDomain}${port}/`;
    return <LoadingScreen />;
  }

  // RULE: Business users must be on their own business subdomain
  if (isBusinessUser && isBusinessSubdomain && user.business_subdomain && user.business_subdomain !== currentSubdomain) {
    const port = window.location.port ? `:${window.location.port}` : '';
    window.location.href = `${protocol}//${user.business_subdomain}.${baseDomain}${port}/`;
    return <LoadingScreen />;
  }

  // RULE: Customers must be on their business subdomain
  if (isCustomer && isPlatformDomain && user.business_subdomain) {
    const port = window.location.port ? `:${window.location.port}` : '';
    window.location.href = `${protocol}//${user.business_subdomain}.${baseDomain}${port}/`;
    return <LoadingScreen />;
  }

  if (isCustomer && isBusinessSubdomain && user.business_subdomain && user.business_subdomain !== currentSubdomain) {
    const port = window.location.port ? `:${window.location.port}` : '';
    window.location.href = `${protocol}//${user.business_subdomain}.${baseDomain}${port}/`;
    return <LoadingScreen />;
  }

  // Handlers
  const toggleTheme = () => setDarkMode((prev) => !prev);
  const handleSignOut = () => {
    logoutMutation.mutate();
  };
  const handleUpdateBusiness = (updates: Partial<any>) => {
    updateBusinessMutation.mutate(updates);
  };

  const handleMasquerade = (targetUser: any) => {
    // Call the masquerade API with the target user's id
    const userId = targetUser.id;
    if (!userId) {
      console.error('Cannot masquerade: no user id available', targetUser);
      return;
    }
    // Ensure userId is a number
    const userPk = typeof userId === 'string' ? parseInt(userId, 10) : userId;
    masqueradeMutation.mutate(userPk);
  };

  // Helper to check access based on roles
  const hasAccess = (allowedRoles: string[]) => allowedRoles.includes(user.role);

  if (isPlatformUser) {
    return (
      <Suspense fallback={<LoadingScreen />}>
        <Routes>
          <Route
            element={
              <PlatformLayout
                user={user}
                darkMode={darkMode}
                toggleTheme={toggleTheme}
                onSignOut={handleSignOut}
              />
            }
          >
            {(user.role === 'superuser' || user.role === 'platform_manager') && (
              <>
                <Route path="/platform/dashboard" element={<PlatformDashboard />} />
                <Route path="/platform/businesses" element={<PlatformBusinesses onMasquerade={handleMasquerade} />} />
                <Route path="/platform/users" element={<PlatformUsers onMasquerade={handleMasquerade} />} />
                <Route path="/platform/staff" element={<PlatformStaff />} />
              </>
            )}
            <Route path="/platform/support" element={<PlatformSupportPage />} />
            <Route path="/platform/email-addresses" element={<PlatformEmailAddresses />} />
            <Route path="/help/guide" element={<HelpGuide />} />
            <Route path="/help/ticketing" element={<HelpTicketing />} />
            <Route path="/help/api" element={<HelpApiDocs />} />
            <Route path="/help/plugins" element={<HelpPluginDocs />} />
            <Route path="/help/email" element={<HelpEmailSettings />} />
            {user.role === 'superuser' && (
              <Route path="/platform/settings" element={<PlatformSettings />} />
            )}
            <Route path="/platform/profile" element={<ProfileSettings />} />
            <Route path="/verify-email" element={<VerifyEmail />} />
            <Route
              path="*"
              element={
                <Navigate
                  to={
                    user.role === 'superuser' || user.role === 'platform_manager'
                      ? '/platform/dashboard'
                      : '/platform/support'
                  }
                />
              }
            />
          </Route>
        </Routes>
      </Suspense>
    );
  }

  // Customer users
  if (user.role === 'customer') {
    // Wait for business data to load
    if (businessLoading) {
      return <LoadingScreen />;
    }

    // Handle business not found for customers
    if (!business) {
      return (
        <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900">
          <div className="text-center max-w-md p-6">
            <h2 className="text-2xl font-bold text-red-600 dark:text-red-400 mb-4">Business Not Found</h2>
            <p className="text-gray-600 dark:text-gray-400 mb-4">
              Unable to load business data. Please try again.
            </p>
            <button
              onClick={handleSignOut}
              className="px-4 py-2 bg-gray-600 text-white rounded hover:bg-gray-700"
            >
              Sign Out
            </button>
          </div>
        </div>
      );
    }

    return (
      <Suspense fallback={<LoadingScreen />}>
        <Routes>
          <Route
            element={
              <CustomerLayout
                business={business}
                user={user}
                darkMode={darkMode}
                toggleTheme={toggleTheme}
              />
            }
          >
            <Route path="/" element={<CustomerDashboard />} />
            <Route path="/book" element={<BookingPage />} />
            <Route path="/payments" element={<Payments />} />
            <Route path="/support" element={<CustomerSupport />} />
            <Route path="/profile" element={<ProfileSettings />} />
            <Route path="/verify-email" element={<VerifyEmail />} />
            <Route path="*" element={<Navigate to="/" />} />
          </Route>
        </Routes>
      </Suspense>
    );
  }

  // Business loading - show loading with user info
  if (businessLoading) {
    return <LoadingScreen />;
  }

  // Business error or no business found
  if (businessError || !business) {
    // If user has a business subdomain, redirect them there
    if (user.business_subdomain) {
      window.location.href = buildSubdomainUrl(user.business_subdomain, '/');
      return <LoadingScreen />;
    }

    // No business subdomain - show error
    return (
      <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900">
        <div className="text-center max-w-md p-6">
          <h2 className="text-2xl font-bold text-red-600 dark:text-red-400 mb-4">Business Not Found</h2>
          <p className="text-gray-600 dark:text-gray-400 mb-4">
            {businessError instanceof Error ? businessError.message : 'Unable to load business data. Please check your subdomain or try again.'}
          </p>
          <div className="flex gap-4 justify-center">
            <button
              onClick={() => window.location.reload()}
              className="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700"
            >
              Reload
            </button>
            <button
              onClick={handleSignOut}
              className="px-4 py-2 bg-gray-600 text-white rounded hover:bg-gray-700"
            >
              Sign Out
            </button>
          </div>
        </div>
      </div>
    );
  }

  // Business users (owner, manager, staff, resource)
  if (['owner', 'manager', 'staff', 'resource'].includes(user.role)) {
    // Check if email verification is required
    if (!user.email_verified) {
      return (
        <Suspense fallback={<LoadingScreen />}>
          <Routes>
            <Route path="/email-verification-required" element={<EmailVerificationRequired />} />
            <Route path="/verify-email" element={<VerifyEmail />} />
            <Route path="*" element={<Navigate to="/email-verification-required" replace />} />
          </Routes>
        </Suspense>
      );
    }

    // Check if trial has expired
    const isTrialExpired = business.isTrialExpired || (business.status === 'Trial' && business.trialEnd && new Date(business.trialEnd) < new Date());

    // Allowed routes when trial is expired
    const allowedWhenExpired = ['/trial-expired', '/upgrade', '/settings', '/profile'];
    const currentPath = window.location.pathname;
    const isOnAllowedRoute = allowedWhenExpired.some(route => currentPath.startsWith(route));

    // If trial expired and not on allowed route, redirect to trial-expired
    if (isTrialExpired && !isOnAllowedRoute) {
      return (
        <Suspense fallback={<LoadingScreen />}>
          <Routes>
            <Route path="/trial-expired" element={<TrialExpired />} />
            <Route path="/upgrade" element={<Upgrade />} />
            <Route path="/profile" element={<ProfileSettings />} />
            {/* Trial-expired users can access billing settings to upgrade */}
            <Route
              path="/settings/*"
              element={hasAccess(['owner']) ? <Navigate to="/upgrade" /> : <Navigate to="/trial-expired" />}
            />
            <Route path="*" element={<Navigate to="/trial-expired" replace />} />
          </Routes>
        </Suspense>
      );
    }

    return (
      <Suspense fallback={<LoadingScreen />}>
        <Routes>
          <Route
            element={
              <BusinessLayout
                business={business}
                user={user}
                darkMode={darkMode}
                toggleTheme={toggleTheme}
                onSignOut={handleSignOut}
                updateBusiness={handleUpdateBusiness}
              />
            }
          >
            {/* Trial and Upgrade Routes */}
            <Route path="/trial-expired" element={<TrialExpired />} />
            <Route path="/upgrade" element={<Upgrade />} />

            {/* Regular Routes */}
            <Route
              path="/"
              element={user.role === 'resource' ? <ResourceDashboard /> : <Dashboard />}
            />
            <Route path="/scheduler" element={<Scheduler />} />
            <Route path="/tickets" element={<Tickets />} />
            <Route path="/help" element={<HelpComprehensive />} />
            <Route path="/help/guide" element={<HelpGuide />} />
            <Route path="/help/ticketing" element={<HelpTicketing />} />
            <Route path="/help/api" element={<HelpApiDocs />} />
            <Route path="/help/plugins/docs" element={<HelpPluginDocs />} />
            <Route path="/help/email" element={<HelpEmailSettings />} />
            {/* New help pages */}
            <Route path="/help/dashboard" element={<HelpDashboard />} />
            <Route path="/help/scheduler" element={<HelpScheduler />} />
            <Route path="/help/tasks" element={<HelpTasks />} />
            <Route path="/help/customers" element={<HelpCustomers />} />
            <Route path="/help/services" element={<HelpServices />} />
            <Route path="/help/resources" element={<HelpResources />} />
            <Route path="/help/staff" element={<HelpStaff />} />
            <Route path="/help/messages" element={<HelpMessages />} />
            <Route path="/help/payments" element={<HelpPayments />} />
            <Route path="/help/plugins" element={<HelpPlugins />} />
            <Route path="/help/settings/general" element={<HelpSettingsGeneral />} />
            <Route path="/help/settings/resource-types" element={<HelpSettingsResourceTypes />} />
            <Route path="/help/settings/booking" element={<HelpSettingsBooking />} />
            <Route path="/help/settings/appearance" element={<HelpSettingsAppearance />} />
            <Route path="/help/settings/email" element={<HelpSettingsEmail />} />
            <Route path="/help/settings/domains" element={<HelpSettingsDomains />} />
            <Route path="/help/settings/api" element={<HelpSettingsApi />} />
            <Route path="/help/settings/auth" element={<HelpSettingsAuth />} />
            <Route path="/help/settings/billing" element={<HelpSettingsBilling />} />
            <Route path="/help/settings/quota" element={<HelpSettingsQuota />} />
            <Route
              path="/plugins/marketplace"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <PluginMarketplace />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/plugins/my-plugins"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <MyPlugins />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/plugins/create"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <CreatePlugin />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/tasks"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <Tasks />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/email-templates"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <EmailTemplates />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route path="/support" element={<PlatformSupport />} />
            <Route
              path="/customers"
              element={
                hasAccess(['owner', 'manager', 'staff']) ? (
                  <Customers onMasquerade={handleMasquerade} effectiveUser={user} />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/services"
              element={
                hasAccess(['owner', 'manager', 'staff']) ? (
                  <Services />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/resources"
              element={
                hasAccess(['owner', 'manager', 'staff']) ? (
                  <Resources onMasquerade={handleMasquerade} effectiveUser={user} />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/staff"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <Staff onMasquerade={handleMasquerade} effectiveUser={user} />
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            <Route
              path="/payments"
              element={
                hasAccess(['owner', 'manager']) ? <Payments /> : <Navigate to="/" />
              }
            />
            <Route
              path="/messages"
              element={
                hasAccess(['owner', 'manager']) ? (
                  <div className="p-8">
                    <h1 className="text-2xl font-bold mb-4">Messages</h1>
                    <p className="text-gray-600">Messages feature coming soon...</p>
                  </div>
                ) : (
                  <Navigate to="/" />
                )
              }
            />
            {/* Settings Routes with Nested Layout */}
            {hasAccess(['owner']) ? (
              <Route path="/settings" element={<SettingsLayout />}>
                <Route index element={<Navigate to="/settings/general" replace />} />
                <Route path="general" element={<GeneralSettings />} />
                <Route path="branding" element={<BrandingSettings />} />
                <Route path="resource-types" element={<ResourceTypesSettings />} />
                <Route path="booking" element={<BookingSettings />} />
                <Route path="email-templates" element={<EmailTemplates />} />
                <Route path="custom-domains" element={<CustomDomainsSettings />} />
                <Route path="api" element={<ApiSettings />} />
                <Route path="authentication" element={<AuthenticationSettings />} />
                <Route path="email" element={<EmailSettings />} />
                <Route path="sms-calling" element={<CommunicationSettings />} />
                <Route path="billing" element={<BillingSettings />} />
                <Route path="quota" element={<QuotaSettings />} />
              </Route>
            ) : (
              <Route path="/settings/*" element={<Navigate to="/" />} />
            )}
            <Route path="/profile" element={<ProfileSettings />} />
            <Route path="/verify-email" element={<VerifyEmail />} />
            <Route path="*" element={<Navigate to="/" />} />
          </Route>
        </Routes>
      </Suspense>
    );
  }

  // Fallback
  return <Navigate to="/" />;
};

/**
 * Main App Component
 */
const App: React.FC = () => {
  return (
    <QueryClientProvider client={queryClient}>
      <Router>
        <AppContent />
      </Router>
      <Toaster /> {/* Add Toaster component for notifications */}
    </QueryClientProvider>
  );
};

export default App;