const PREFIX = 'fiddle_';

const DEFAULTS = {
  autoRun: true,
  layout: 'default',
  keybindings: 'default',
  panelSizes: null,
  previewTheme: 'light',
};

export function getPref(key) {
  const raw = localStorage.getItem(PREFIX + key);
  if (raw === null) return DEFAULTS[key] ?? null;
  try { return JSON.parse(raw); } catch { return raw; }
}

export function setPref(key, value) {
  localStorage.setItem(PREFIX + key, JSON.stringify(value));
}

export function removePref(key) {
  localStorage.removeItem(PREFIX + key);
}