import React from 'react';
import { createBrowserRouter, Outlet, Navigate, useLocation } from 'react-router-dom';
import LoginPage from './pages/LoginPage';
import DashboardPage from './pages/DashboardPage';
import EventsPage from './pages/EventsPage';
import SettingsPage from './pages/SettingsPage';
import EventFormPage from './pages/EventFormPage';
import EventPhotosPage from './pages/EventPhotosPage';
import EventDetailPage from './pages/EventDetailPage';
import EventMembersPage from './pages/EventMembersPage';
import EventTasksPage from './pages/EventTasksPage';
import BillingPage from './pages/BillingPage';
import TasksPage from './pages/TasksPage';
import AuthCallbackPage from './pages/AuthCallbackPage';
import { useAuth } from './auth/context';
import {
  ADMIN_AUTH_CALLBACK_PATH,
  ADMIN_BASE_PATH,
  ADMIN_LOGIN_PATH,
} from './constants';
import WelcomeLandingPage from './onboarding/pages/WelcomeLandingPage';
import WelcomePackagesPage from './onboarding/pages/WelcomePackagesPage';
import WelcomeEventSetupPage from './onboarding/pages/WelcomeEventSetupPage';
import WelcomeOrderSummaryPage from './onboarding/pages/WelcomeOrderSummaryPage';

function RequireAuth() {
  const { status } = useAuth();
  const location = useLocation();

  if (status === 'loading') {
    return (
      <div className="flex min-h-screen items-center justify-center text-sm text-muted-foreground">
        Bitte warten ...
      </div>
    );
  }

  if (status === 'unauthenticated') {
    return <Navigate to={ADMIN_LOGIN_PATH} state={{ from: location }} replace />;
  }

  return <Outlet />;
}

export const router = createBrowserRouter([
  { path: ADMIN_LOGIN_PATH, element: <LoginPage /> },
  { path: ADMIN_AUTH_CALLBACK_PATH, element: <AuthCallbackPage /> },
  {
    path: ADMIN_BASE_PATH,
    element: <RequireAuth />,
    children: [
      { index: true, element: <DashboardPage /> },
      { path: 'dashboard', element: <Navigate to={ADMIN_BASE_PATH} replace /> },
      { path: 'events', element: <EventsPage /> },
      { path: 'events/new', element: <EventFormPage /> },
      { path: 'events/:slug', element: <EventDetailPage /> },
      { path: 'events/:slug/edit', element: <EventFormPage /> },
      { path: 'events/:slug/photos', element: <EventPhotosPage /> },
      { path: 'events/:slug/members', element: <EventMembersPage /> },
      { path: 'events/:slug/tasks', element: <EventTasksPage /> },
      { path: 'tasks', element: <TasksPage /> },
      { path: 'billing', element: <BillingPage /> },
      { path: 'settings', element: <SettingsPage /> },
      { path: 'welcome', element: <WelcomeLandingPage /> },
      { path: 'welcome/packages', element: <WelcomePackagesPage /> },
      { path: 'welcome/summary', element: <WelcomeOrderSummaryPage /> },
      { path: 'welcome/event', element: <WelcomeEventSetupPage /> },
    ],
  },
  { path: '*', element: <Navigate to={ADMIN_BASE_PATH} replace /> },
]);