// "Continue playing": remembered per browser, the server stores only saves.
export interface RecentPlay {
  gameId: number;
  versionId: number;
  title: string;
  coverHash: string | null;
  at: number;
}

const KEY = "pg-recent";
const MAX = 12;

export function getRecent(): RecentPlay[] {
  try {
    const list = JSON.parse(localStorage.getItem(KEY) ?? "[]");
    return Array.isArray(list) ? list : [];
  } catch {
    return [];
  }
}

export function pushRecent(item: Omit<RecentPlay, "at">) {
  try {
    const list = getRecent().filter((r) => r.gameId !== item.gameId);
    localStorage.setItem(KEY, JSON.stringify([{ ...item, at: Date.now() }, ...list].slice(0, MAX)));
  } catch {
    /* storage unavailable */
  }
}

export function dropRecent(gameId: number) {
  try {
    localStorage.setItem(KEY, JSON.stringify(getRecent().filter((r) => r.gameId !== gameId)));
  } catch {
    /* storage unavailable */
  }
}