export const RECENT_VISITS_STORAGE_KEY = "hyb_oa_recent_visits";

export type RecentVisit = {
  path: string;
  title: string;
  visitedAt: string;
};

function isWindowAvailable() {
  return typeof window !== "undefined" && typeof window.localStorage !== "undefined";
}

export function readRecentVisits(): RecentVisit[] {
  if (!isWindowAvailable()) return [];
  try {
    const raw = window.localStorage.getItem(RECENT_VISITS_STORAGE_KEY);
    if (!raw) return [];
    const parsed = JSON.parse(raw);
    return Array.isArray(parsed) ? parsed.filter((item) => item && typeof item.path === "string") : [];
  } catch {
    return [];
  }
}

export function writeRecentVisit(path: string, title: string) {
  if (!isWindowAvailable()) return;
  const current = readRecentVisits().filter((item) => item.path !== path);
  current.unshift({ path, title, visitedAt: new Date().toISOString() });
  window.localStorage.setItem(RECENT_VISITS_STORAGE_KEY, JSON.stringify(current.slice(0, 10)));
}