export function saveLoginInfo(uname: string) {
  const nowUTC = Date.now();
  localStorage.setItem("slidev_is_logged_in", "true");
  // 存储后端返回的token（用于后续接口鉴权）
  localStorage.setItem("slidev_username", uname);
  localStorage.setItem("slidev_logged_in_time", nowUTC + "");
  localStorage.setItem("slidev_logged_in_expire", 3600 * 24 + "");
  console.log("save.");
}

export function isLoggedIn(): boolean {
  if (
    localStorage.getItem("slidev_is_logged_in") === "true" ||
    localStorage.getItem("slidev_logged_in_time") === null ||
    localStorage.getItem("slidev_logged_in_expire") === null
  ) {
    const loginTime = parseInt(localStorage.getItem("slidev_logged_in_time")!);
    const expireTime = parseInt(
      localStorage.getItem("slidev_logged_in_expire")!
    );
    const nowUTC = Date.now();
    if (nowUTC < loginTime + expireTime) {
      return true;
    } else {
      clearLoginInfo();
    }
  }

  return false;
}

export function clearLoginInfo() {
  localStorage.removeItem("slidev_is_logged_in");
  localStorage.removeItem("slidev_logged_in_time");
  localStorage.removeItem("slidev_logged_in_expire");
}