import { useEffect, useState } from 'react';
export function ThemeToggle() {
  const [dark, setDark] = useState(false);
  const [ready, setReady] = useState(false);
  useEffect(() => { const sync = () => setDark(document.documentElement.dataset.mode === 'dark'); sync(); setReady(true); window.addEventListener('endoleap-theme', sync); return () => window.removeEventListener('endoleap-theme', sync); }, []);
  return <button type="button" data-theme-ready={ready} className="endoleap-theme-toggle" aria-label="切换明暗主题" title={dark ? '切换浅色模式' : '切换深色模式'} onClick={() => { const mode = document.documentElement.dataset.mode === 'dark' ? 'light' : 'dark'; const scope = document.documentElement.dataset.theme?.startsWith('canvas-') ? 'canvas' : 'home'; document.documentElement.dataset.mode = mode; document.documentElement.dataset.theme = `${scope}-${mode}`; try { localStorage.setItem('endoleap.theme', mode); } catch {} window.dispatchEvent(new Event('endoleap-theme')); }}>◐<span>{dark ? '浅色' : '深色'}</span></button>;
}