const KEY = 'filehost.theme';

export function currentTheme() {
  return document.documentElement.classList.contains('dark') ? 'dark' : 'light';
}

export function applyTheme(theme) {
  document.documentElement.classList.toggle('dark', theme === 'dark');
  try {
    localStorage.setItem(KEY, theme);
  } catch {
    /* ignore */
  }
}

export function toggleTheme() {
  const next = currentTheme() === 'dark' ? 'light' : 'dark';
  applyTheme(next);
  return next;
}