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/*
 * sophies.rocks
 *
 * Copyright (C) 2026 Zofia Szweda
 *
 * This file is part of sophies.rocks.
 *
 * sophies.rocks is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * sophies.rocks is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with sophies.rocks. If not, see <https://www.gnu.org/licenses/>.
 */

const LIBREFM_USER = "sophii.xyz";
const LIBREFM_API_KEY = "00000000000000000000000000000000";
const LIBREFM_CACHE_KEY = "scrobbles-cache";
const LIBREFM_CACHE_TTL_MS = 60_000;

async function loadScrobbles(limit = 7) {
  const cached = localStorage.getItem(LIBREFM_CACHE_KEY);
  if (cached) {
    const { data, ts } = JSON.parse(cached);
    if (Date.now() - ts < LIBREFM_CACHE_TTL_MS) return data;
  }

  const url = `https://libre.fm/2.0/?method=user.getrecenttracks&user=${LIBREFM_USER}&api_key=${LIBREFM_API_KEY}&format=json&limit=${limit}`;
  const res = await fetch(url);
  if (!res.ok) throw new Error("Could not fetch scrobbles");
  const data = await res.json();
  const tracks = data.recenttracks?.track ?? [];

  localStorage.setItem(LIBREFM_CACHE_KEY, JSON.stringify({ data: tracks, ts: Date.now() }));
  return tracks;
}

async function renderScrobbles() {
  const list = document.querySelector("#recent-scrobbles ul");
  try {
    const tracks = await loadScrobbles();
    if (tracks.length === 0) {
      list.innerHTML = "<li>No scrobbles yet.</li>";
      return;
    }
    list.innerHTML = "";
    tracks.forEach((track) => {
      const li = document.createElement("li");
      const artist = track.artist?.["#text"] ?? "";
      const nowPlaying = track["@attr"]?.nowplaying === "true";
      li.innerHTML = `
        <a href="${track.url}">${track.name}</a>
        <div>${artist}${nowPlaying ? " - listening now" : ""}</div>
      `;
      list.appendChild(li);
    });
  } catch (err) {
    console.error("Failed to load libre.fm scrobbles:", err);
    list.innerHTML = "<li>Couldn't load scrobbles right now.</li>";
  }
}

renderScrobbles();