export const USER_INFO_UPDATED_EVENT = 'user-info-updated';

function getCachedUserInfo() {
  try {
    const raw = window.localStorage.getItem('userInfo');
    return raw ? JSON.parse(raw) : {};
  } catch (error) {
    return {};
  }
}

export function updateCachedUserInfo(changes) {
  if (typeof window === 'undefined' || !window.localStorage) {
    return {};
  }

  const nextUserInfo = {
    ...getCachedUserInfo(),
    ...(changes && typeof changes === 'object' ? changes : {})
  };

  try {
    window.localStorage.setItem('userInfo', JSON.stringify(nextUserInfo));
  } catch (error) {
    void error;
  }

  window.dispatchEvent(new CustomEvent(USER_INFO_UPDATED_EVENT, { detail: nextUserInfo }));
  return nextUserInfo;
}