import React from 'react';
import { HashRouter, Link, Route, Routes, useLocation } from 'react-router-dom';
import { Alert, Breadcrumb } from 'antd';

const Apps = () => (
  <ul className="app-list">
    <li>
      <Link to="/apps/1">Application1</Link>：<Link to="/apps/1/detail">Detail</Link>
    </li>
    <li>
      <Link to="/apps/2">Application2</Link>：<Link to="/apps/2/detail">Detail</Link>
    </li>
  </ul>
);

const breadcrumbNameMap: Record<string, string> = {
  '/apps': 'Application List',
  '/apps/1': 'Application1',
  '/apps/2': 'Application2',
  '/apps/1/detail': 'Detail',
  '/apps/2/detail': 'Detail',
};

const Home = () => {
  const location = useLocation();
  const pathSnippets = location.pathname.split('/').filter((i) => i);

  const extraBreadcrumbItems = pathSnippets.map((_, index) => {
    const url = `/${pathSnippets.slice(0, index + 1).join('/')}`;
    return {
      key: url,
      title: <Link to={url}>{breadcrumbNameMap[url]}</Link>,
    };
  });

  const breadcrumbItems = [
    {
      title: <Link to="/">Home</Link>,
      key: 'home',
    },
  ].concat(extraBreadcrumbItems);

  return (
    <div className="demo">
      <div className="demo-nav">
        <Link to="/">Home</Link>
        <Link to="/apps">Application List</Link>
      </div>
      <Routes>
        <Route path="/apps" element={<Apps />} />
        <Route path="*" element={<span>Home Page</span>} />
      </Routes>
      <Alert style={{ margin: '16px 0' }} message="Click the navigation above to switch:" />
      <Breadcrumb items={breadcrumbItems} />
    </div>
  );
};

const App: React.FC = () => (
  <HashRouter>
    <Home />
  </HashRouter>
);

export default App;