import { useEffect, useState } from 'react';
import { Link, Route, Routes } from 'react-router-dom';
import { api } from './lib/api.js';
import Overview from './pages/Overview.jsx';
import CreateMatch from './pages/CreateMatch.jsx';
import MatchPage from './pages/MatchPage.jsx';
import { JoinPage, WatchPage } from './pages/AccessPages.jsx';

export default function App() {
  const [config, setConfig] = useState(null);
  const [configError, setConfigError] = useState(null);

  useEffect(() => {
    api('/config').then(setConfig).catch((e) => setConfigError(e.message));
  }, []);

  return (
    <div className="app">
      <header className="topbar">
        <Link to="/" className="brand" aria-label="Zur Übersicht">
          <svg viewBox="0 0 32 32" width="26" height="26" aria-hidden="true">
            <path d="M4 4h24l-4 24H8z" fill="var(--ct)" />
            <path d="M10 10l12 12M22 10L10 22" stroke="var(--bg)" strokeWidth="3" />
          </svg>
          <span>CS2 Mapveto</span>
        </Link>
        {config?.server.simulated && (
          <span className="demo-flag" title="SERVER_ADAPTER=demo – es werden keine echten CS2-Server gestartet">
            Demo-Modus: keine echten Server
          </span>
        )}
        <nav>
          <Link to="/" className="nav-link">Übersicht</Link>
          <Link to="/neu" className="btn btn-primary btn-sm">Match erstellen</Link>
        </nav>
      </header>
      <main className="content">
        {configError && <div className="alert alert-error">Backend nicht erreichbar: {configError}</div>}
        <Routes>
          <Route path="/" element={<Overview />} />
          <Route path="/neu" element={<CreateMatch config={config} />} />
          <Route path="/m/:id" element={<MatchPage />} />
          <Route path="/join/:code" element={<JoinPage config={config} />} />
          <Route path="/watch/:code" element={<WatchPage />} />
          <Route path="*" element={<div className="empty"><h2>Seite nicht gefunden</h2><Link to="/">Zur Übersicht</Link></div>} />
        </Routes>
      </main>
    </div>
  );
}