export type LibraryHistoryEntry = {
  id: string;
  timestamp: number;
  kind: "playlist" | "identify" | "convert";
  title: string;
  trackCount?: number;
  artworkUrl?: string;
  sourceUrl?: string;
};

const KEY = "aurora-spotirip-history-v1";

export function loadLibraryHistory(): LibraryHistoryEntry[] {
  if (typeof window === "undefined") return [];
  try {
    const parsed = JSON.parse(window.localStorage.getItem(KEY) || "[]");
    return Array.isArray(parsed) ? parsed : [];
  } catch {
    return [];
  }
}

export function addLibraryHistory(entry: Omit<LibraryHistoryEntry, "id" | "timestamp">) {
  const current = loadLibraryHistory();
  const next: LibraryHistoryEntry[] = [
    {
      ...entry,
      id: crypto.randomUUID(),
      timestamp: Date.now(),
    },
    ...current,
  ].slice(0, 200);
  window.localStorage.setItem(KEY, JSON.stringify(next));
}

export function clearLibraryHistory() {
  window.localStorage.removeItem(KEY);
}