544 lines
21 KiB
JavaScript
544 lines
21 KiB
JavaScript
(function music() {
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"use strict";
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// ---- config -------------------------------------------------------------
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const DISCORD_ID = "1464890289922641993";
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const LFM_USER = "Real_AlexTLM";
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const LFM_KEY = "768e8bd0d366f4d6c7874740ca6610ad";
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const LFM_OK = !!(LFM_USER && LFM_KEY);
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// LRCLIB-compatible instances, tried in order; falls through on any failure.
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const LRCLIB_HOSTS = [
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"https://lrclib.schuh.wtf",
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"https://lyrics.lanyard.cafe",
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"https://lyrics.kie.ac",
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"https://api.assumi.ng/lyrics",
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"https://lyrics.aureal.dev",
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"https://lrclib.net",
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];
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const reduceMotion = window.matchMedia("(prefers-reduced-motion: reduce)").matches;
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// ---- tiny helpers -------------------------------------------------------
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const $ = (sel) => document.querySelector(sel);
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function esc(s) {
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return String(s == null ? "" : s)
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.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">")
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.replace(/"/g, """).replace(/'/g, "'");
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}
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function mmss(ms) {
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if (!isFinite(ms) || ms < 0) ms = 0;
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const s = Math.floor(ms / 1000);
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return Math.floor(s / 60) + ":" + String(s % 60).padStart(2, "0");
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}
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function clamp(n, lo, hi) { return n < lo ? lo : n > hi ? hi : n; }
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// ---- album art → Catppuccin accent (same maths as now-playing.js) -------
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const ACCENT_VARS = [
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"rosewater", "flamingo", "pink", "mauve", "red", "maroon", "peach",
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"yellow", "green", "teal", "sky", "saphire", "blue", "lavender",
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];
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function hexToRgb(hex) {
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hex = hex.trim().replace("#", "");
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if (hex.length === 3) hex = hex.split("").map((c) => c + c).join("");
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const n = parseInt(hex, 16);
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return [(n >> 16) & 255, (n >> 8) & 255, n & 255];
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}
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function themePalette() {
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const cs = getComputedStyle(document.documentElement);
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const pal = [];
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for (const name of ACCENT_VARS) {
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const v = cs.getPropertyValue("--" + name).trim();
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if (v.startsWith("#")) { const [r, g, b] = hexToRgb(v); pal.push({ r, g, b }); }
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}
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return pal;
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}
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function nearestAccent(r, g, b) {
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const pal = themePalette();
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let best = null, bestD = Infinity;
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for (const c of pal) {
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const rm = (r + c.r) / 2, dr = r - c.r, dg = g - c.g, db = b - c.b;
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const d = (2 + rm / 256) * dr * dr + 4 * dg * dg + (2 + (255 - rm) / 256) * db * db;
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if (d < bestD) { bestD = d; best = c; }
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}
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return best;
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}
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let lastArtUrl = null;
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function applyAccent(url) {
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if (!url) { resetAccent(); return; }
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if (url === lastArtUrl) return;
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lastArtUrl = url;
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const img = new Image();
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img.crossOrigin = "anonymous";
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img.referrerPolicy = "no-referrer";
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img.onload = () => {
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try {
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const c = document.createElement("canvas");
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c.width = c.height = 16;
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const ctx = c.getContext("2d", { willReadFrequently: true });
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ctx.drawImage(img, 0, 0, 16, 16);
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const { data } = ctx.getImageData(0, 0, 16, 16);
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let r = 0, g = 0, b = 0, count = 0;
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for (let i = 0; i < data.length; i += 4) {
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if (data[i + 3] < 125) continue;
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const lum = 0.2126 * data[i] + 0.7152 * data[i + 1] + 0.0722 * data[i + 2];
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if (lum < 24 || lum > 235) continue;
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r += data[i]; g += data[i + 1]; b += data[i + 2]; count++;
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}
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if (!count) { resetAccent(); return; }
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r = Math.round(r / count); g = Math.round(g / count); b = Math.round(b / count);
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const near = nearestAccent(r, g, b);
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const rgb = near ? `${near.r}, ${near.g}, ${near.b}` : `${r}, ${g}, ${b}`;
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document.documentElement.style.setProperty("--accent-rgb", rgb);
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} catch (e) { resetAccent(); }
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};
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img.onerror = resetAccent;
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img.src = url;
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}
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function resetAccent() {
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lastArtUrl = null;
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document.documentElement.style.removeProperty("--accent-rgb");
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}
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// ---- DOM refs -----------------------------------------------------------
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const stage = $("#music");
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if (!stage) return;
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const npArt = $("#np-art");
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const npState = $("#np-state");
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const npTitle = $("#np-title");
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const npArtist = $("#np-artist");
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const npAlbum = $("#np-album");
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const npLink = $("#np-link");
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const barFill = $("#np-fill");
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const barCur = $("#np-cur");
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const barDur = $("#np-dur");
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const progress = $("#np-progress");
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const lyricsBox = $("#lyrics");
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const lockBtn = $("#ly-lock");
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const recentBox = $("#recent");
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const topBox = $("#top");
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// transparent 1x1 — keeps <img> valid (src required) while showing the ♪
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// placeholder via CSS (.mnp-art:not(.has-art)) when there's no real art
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const BLANK_ART = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
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// ---- state --------------------------------------------------------------
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// track: { song, artist, album, art, trackId, url, start, end, duration, live }
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let track = null; // what's on the hero right now
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let lyrics = null; // { synced:[{t,text}], plain, instrumental, key }
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let lyricsReq = 0; // race guard for async lyric fetches
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let activeLine = -1;
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const lyricsCache = new Map(); // trackKey → normalized lyrics (instant on repeat)
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let locked = true; // follow the current line; released when the user scrolls
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function trackKey(t) {
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return t ? [t.song, t.artist, t.album].map((x) => (x || "").toLowerCase()).join("\u241F") : "";
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}
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// =======================================================================
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// NOW PLAYING (hero)
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// =======================================================================
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function paintHero() {
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if (!track) {
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stage.classList.add("is-idle");
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npState.textContent = "Not listening right now";
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npTitle.textContent = "—";
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npArtist.textContent = "";
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npAlbum.textContent = "";
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npArt.src = BLANK_ART;
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npArt.classList.remove("has-art");
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npLink.removeAttribute("href");
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npLink.removeAttribute("target");
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npLink.removeAttribute("rel");
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progress.hidden = true;
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resetAccent();
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return;
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}
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stage.classList.toggle("is-idle", false);
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stage.classList.toggle("is-live", !!track.live);
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npState.textContent = track.live ? "Listening now" : "Last played";
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npTitle.textContent = track.song || "Unknown track";
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npArtist.textContent = track.artist || "";
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npAlbum.textContent = track.album || "";
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if (track.art) { npArt.src = track.art; npArt.classList.add("has-art"); }
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else { npArt.src = BLANK_ART; npArt.classList.remove("has-art"); }
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if (track.url) { npLink.href = track.url; npLink.target = "_blank"; npLink.rel = "noopener"; }
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else { npLink.removeAttribute("href"); npLink.removeAttribute("target"); npLink.removeAttribute("rel"); }
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// progress bar only makes sense for a live track with real timestamps
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progress.hidden = !(track.live && track.start && track.end);
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if (!progress.hidden) barDur.textContent = mmss(track.duration);
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applyAccent(track.art);
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}
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function setTrack(next) {
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const changed = trackKey(next) !== trackKey(track);
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track = next;
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paintHero();
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if (changed) {
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activeLine = -1;
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loadLyrics(next);
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}
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}
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// =======================================================================
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// LYRICS (LRCLIB)
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// =======================================================================
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function parseLRC(text) {
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if (!text) return [];
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const out = [];
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const tag = /\[(\d{1,2}):(\d{1,2}(?:[.:]\d{1,3})?)\]/g;
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text.split(/\r?\n/).forEach((line) => {
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tag.lastIndex = 0;
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const stamps = [];
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let m, last = 0;
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while ((m = tag.exec(line))) {
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const mins = parseInt(m[1], 10);
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const secs = parseFloat(m[2].replace(":", "."));
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stamps.push((mins * 60 + secs) * 1000);
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last = tag.lastIndex;
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}
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if (!stamps.length) return;
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const words = line.slice(last).trim();
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stamps.forEach((t) => out.push({ t, text: words }));
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});
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out.sort((a, b) => a.t - b.t);
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return out;
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}
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function lyricsLoading() {
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lyricsBox.className = "lyrics is-loading";
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lyricsBox.innerHTML = '<p class="ly-note">Finding lyrics…</p>';
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}
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function lyricsEmpty(msg) {
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lyricsBox.className = "lyrics is-empty";
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lyricsBox.innerHTML = '<p class="ly-note">' + esc(msg) + "</p>";
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}
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function renderLyrics(data) {
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lyrics = data;
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activeLine = -1;
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locked = true; // every new track starts in follow mode
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const synced = data && data.synced && data.synced.length;
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updateLock(synced);
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if (!data) { lyricsEmpty("No track playing."); return; }
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if (data.instrumental) {
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lyricsBox.className = "lyrics is-instrumental";
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lyricsBox.innerHTML = '<p class="ly-note">♪ instrumental ♪</p>';
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return;
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}
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if (synced) {
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lyricsBox.className = "lyrics is-synced";
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lyricsBox.innerHTML = data.synced
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.map((l, i) => '<p class="ly-line" data-i="' + i + '">' + (esc(l.text) || " ") + "</p>")
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.join("");
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lyricsBox.scrollTop = 0;
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return;
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}
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if (data.plain) {
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lyricsBox.className = "lyrics is-plain";
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lyricsBox.innerHTML = data.plain.split(/\r?\n/)
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.map((l) => '<p class="ly-line ly-static">' + (esc(l) || " ") + "</p>").join("");
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return;
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}
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lyricsEmpty("No lyrics found for this one.");
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}
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// ---- lock / follow controls --------------------------------------------
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let selfScroll = false; // true while WE are scrolling, so we don't self-release
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function centerLine(i, smooth) {
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const el = lyricsBox.children[i];
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if (!el) return;
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const top = el.offsetTop - lyricsBox.clientHeight / 2 + el.clientHeight / 2;
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selfScroll = true;
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lyricsBox.scrollTo({ top, behavior: smooth && !reduceMotion ? "smooth" : "auto" });
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setTimeout(() => { selfScroll = false; }, smooth && !reduceMotion ? 600 : 50);
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}
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function updateLock(show) {
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if (!lockBtn) return;
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lockBtn.hidden = !show;
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lockBtn.classList.toggle("is-locked", locked);
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lockBtn.setAttribute("aria-pressed", String(locked));
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let label = lockBtn.querySelector(".ly-lock-label");
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if (!label) {
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lockBtn.innerHTML =
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'<span class="ly-bars" aria-hidden="true"><i></i><i></i><i></i><i></i></span>' +
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'<span class="ly-lock-label"></span>';
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label = lockBtn.querySelector(".ly-lock-label");
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}
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label.textContent = locked ? "Synced" : "Sync";
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}
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function release() { // user took over the scroll
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if (!locked) return;
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locked = false;
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if (lockBtn) updateLock(!lockBtn.hidden);
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}
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function reLock() { // jump back to the current line and follow again
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locked = true;
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updateLock(true);
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if (activeLine >= 0) centerLine(activeLine, true);
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}
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if (lockBtn) {
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lockBtn.addEventListener("click", () => (locked ? release() : reLock()));
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}
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// user-driven scroll intent releases the lock (programmatic scrolls don't)
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["wheel", "touchmove"].forEach((ev) =>
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lyricsBox.addEventListener(ev, () => { if (!selfScroll) release(); }, { passive: true }));
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lyricsBox.addEventListener("keydown", (e) => {
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if (["ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End", " "].includes(e.key)) release();
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});
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// LRCLIB lookups, narrowest match first. Walks the instance list until one
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// returns a hit; a 404/non-OK just means "this mirror doesn't have it" → next.
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async function lrclibGet(params) {
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const qs = new URLSearchParams(params).toString();
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for (const host of LRCLIB_HOSTS) {
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try {
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const res = await fetch(host + "/api/get?" + qs, {
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headers: { "X-User-Agent": "c.stupid.cat music (https://c.stupid.cat)" },
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});
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if (res.ok) return res.json();
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} catch (e) { /* network/CORS error → try the next instance */ }
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}
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return null;
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}
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async function lrclibSearch(track_name, artist_name) {
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const qs = new URLSearchParams({ track_name, artist_name }).toString();
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for (const host of LRCLIB_HOSTS) {
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try {
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const res = await fetch(host + "/api/search?" + qs);
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if (!res.ok) continue;
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const arr = await res.json();
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if (!Array.isArray(arr) || !arr.length) continue;
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// prefer a result that actually has synced lyrics
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return arr.find((r) => r.syncedLyrics) || arr.find((r) => r.plainLyrics) || arr[0];
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} catch (e) { /* next instance */ }
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}
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return null;
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}
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function normalize(rec) {
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if (!rec) return null;
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return {
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instrumental: !!rec.instrumental,
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synced: parseLRC(rec.syncedLyrics),
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plain: rec.plainLyrics || "",
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};
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}
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async function loadLyrics(t) {
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const myReq = ++lyricsReq;
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if (!t) { renderLyrics(null); return; }
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const key = trackKey(t);
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if (lyricsCache.has(key)) { renderLyrics(lyricsCache.get(key)); return; } // instant
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lyricsLoading();
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let rec = null;
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try {
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if (t.live && t.duration) {
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// exact-ish match using duration (±2s tolerance handled by LRCLIB)
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rec = await lrclibGet({
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track_name: t.song, artist_name: t.artist,
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album_name: t.album || "", duration: Math.round(t.duration / 1000),
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});
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}
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if (!rec) { // drop album / no-duration → fall back to search
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rec = await lrclibSearch(t.song || "", t.artist || "");
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}
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} catch (e) { rec = null; }
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if (myReq !== lyricsReq) return; // a newer track superseded us
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const data = normalize(rec);
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lyricsCache.set(key, data);
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renderLyrics(data);
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}
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// =======================================================================
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// TICKER — sync the progress bar + active lyric line to playback
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// =======================================================================
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function tick() {
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if (track && track.live && track.start && track.end) {
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const pos = clamp(Date.now() - track.start, 0, track.duration);
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// progress bar
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if (!progress.hidden) {
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barFill.style.width = (pos / track.duration) * 100 + "%";
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barCur.textContent = mmss(pos);
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}
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// active synced line
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if (lyrics && lyrics.synced && lyrics.synced.length) {
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let i = -1;
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for (let k = 0; k < lyrics.synced.length; k++) {
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if (lyrics.synced[k].t <= pos) i = k; else break;
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}
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if (i !== activeLine) {
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const lines = lyricsBox.children;
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if (activeLine >= 0 && lines[activeLine]) lines[activeLine].classList.remove("is-active");
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activeLine = i;
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if (lines[i]) {
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lines[i].classList.add("is-active");
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if (locked) centerLine(i, true);
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}
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}
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}
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}
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requestAnimationFrame(tick);
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}
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// =======================================================================
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// LANYARD — live Discord presence (same socket as the card)
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// =======================================================================
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let ws = null, heartbeat = null, retry = 0;
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function fromSpotify(s) {
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return {
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song: s.song, artist: s.artist, album: s.album,
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art: s.album_art_url || "",
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trackId: s.track_id || "",
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url: s.track_id ? "https://open.spotify.com/track/" + s.track_id : "",
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start: s.timestamps && s.timestamps.start,
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end: s.timestamps && s.timestamps.end,
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duration: s.timestamps ? s.timestamps.end - s.timestamps.start : 0,
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live: true,
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};
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}
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function onPresence(d) {
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if (d && d.listening_to_spotify && d.spotify) {
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setTrack(fromSpotify(d.spotify));
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} else if (track && track.live) {
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// they just stopped — fall back to the latest scrobble for the hero
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track = null;
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showIdle();
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} else if (!track) {
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showIdle();
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}
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}
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function connectLanyard() {
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try { ws = new WebSocket("wss://api.lanyard.rest/socket"); }
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catch (e) { return; }
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ws.onmessage = (ev) => {
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let msg; try { msg = JSON.parse(ev.data); } catch (e) { return; }
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if (msg.op === 1) {
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const interval = (msg.d && msg.d.heartbeat_interval) || 30000;
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if (heartbeat) clearInterval(heartbeat);
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heartbeat = setInterval(() => {
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if (ws && ws.readyState === WebSocket.OPEN) ws.send(JSON.stringify({ op: 3 }));
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}, interval);
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ws.send(JSON.stringify({ op: 2, d: { subscribe_to_id: DISCORD_ID } }));
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} else if (msg.op === 0 && (msg.t === "INIT_STATE" || msg.t === "PRESENCE_UPDATE")) {
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onPresence(msg.d);
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}
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};
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ws.onclose = () => {
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if (heartbeat) { clearInterval(heartbeat); heartbeat = null; }
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retry = Math.min(retry + 1, 6);
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setTimeout(connectLanyard, 1000 * retry);
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};
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ws.onerror = () => { if (ws) ws.close(); };
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}
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// =======================================================================
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// LAST.FM — recently played, top artists, and the idle fallback headline
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// =======================================================================
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const LFM = "https://ws.audioscrobbler.com/2.0/";
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const LFM_PLACEHOLDER = "2a96cbd8b46e442fc41c2b86b821562f"; // last.fm "no art" star
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function lfmImg(images) {
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if (!Array.isArray(images)) return "";
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const big = images[images.length - 1] || images[0] || {};
|
||
const url = big["#text"] || "";
|
||
return url && url.indexOf(LFM_PLACEHOLDER) === -1 ? url : "";
|
||
}
|
||
function timeAgo(uts) {
|
||
const diff = Math.floor(Date.now() / 1000) - Number(uts);
|
||
if (!isFinite(diff) || diff < 0) return "";
|
||
if (diff < 60) return "just now";
|
||
if (diff < 3600) return Math.floor(diff / 60) + " min ago";
|
||
if (diff < 86400) return Math.floor(diff / 3600) + " hr ago";
|
||
return Math.floor(diff / 86400) + " day" + (diff < 172800 ? "" : "s") + " ago";
|
||
}
|
||
async function lfm(method, extra) {
|
||
const qs = new URLSearchParams(Object.assign(
|
||
{ method, user: LFM_USER, api_key: LFM_KEY, format: "json" }, extra || {}
|
||
)).toString();
|
||
const res = await fetch(LFM + "?" + qs);
|
||
if (!res.ok) throw new Error("last.fm " + res.status);
|
||
return res.json();
|
||
}
|
||
|
||
async function showIdle() {
|
||
// pull the latest scrobble so the page isn't a dead end when nobody's listening
|
||
if (!LFM_OK) { paintHero(); return; }
|
||
try {
|
||
const data = await lfm("user.getrecenttracks", { limit: 1 });
|
||
if (track && track.live) return; // a live presence arrived while we waited
|
||
const t = data && data.recenttracks && data.recenttracks.track;
|
||
const last = Array.isArray(t) ? t[0] : t;
|
||
if (last) {
|
||
setTrack({
|
||
song: last.name,
|
||
artist: last.artist && (last.artist["#text"] || last.artist.name),
|
||
album: last.album && last.album["#text"],
|
||
art: lfmImg(last.image),
|
||
url: last.url || "",
|
||
live: false,
|
||
});
|
||
return;
|
||
}
|
||
} catch (e) { /* fall through */ }
|
||
paintHero();
|
||
}
|
||
|
||
async function loadRecent() {
|
||
if (!LFM_OK) {
|
||
recentBox.innerHTML =
|
||
'<li class="rc-note">Add your Last.fm username + key to the ' +
|
||
'<code>music.js</code> script tag to show recent plays.</li>';
|
||
return;
|
||
}
|
||
try {
|
||
const data = await lfm("user.getrecenttracks", { limit: 12 });
|
||
const arr = (data && data.recenttracks && data.recenttracks.track) || [];
|
||
const list = Array.isArray(arr) ? arr : [arr];
|
||
if (!list.length) { recentBox.innerHTML = '<li class="rc-note">No recent scrobbles.</li>'; return; }
|
||
recentBox.innerHTML = list.map((t) => {
|
||
const now = t["@attr"] && t["@attr"].nowplaying === "true";
|
||
const art = lfmImg(t.image);
|
||
const when = now
|
||
? '<span class="rc-now">scrobbling now</span>'
|
||
: '<span class="rc-when">' + esc(timeAgo(t.date && t.date.uts)) + "</span>";
|
||
const artist = t.artist && (t.artist["#text"] || t.artist.name) || "";
|
||
return '<li class="rc-item' + (now ? " is-now" : "") + '">' +
|
||
'<a href="' + esc(t.url || "#") + '" target="_blank" rel="noopener">' +
|
||
(art ? '<img class="rc-art" src="' + esc(art) + '" alt="" loading="lazy">'
|
||
: '<span class="rc-art rc-art-blank" aria-hidden="true">♪</span>') +
|
||
'<span class="rc-text">' +
|
||
'<span class="rc-name">' + esc(t.name) + "</span>" +
|
||
'<span class="rc-artist">' + esc(artist) + "</span>" +
|
||
"</span>" + when +
|
||
"</a></li>";
|
||
}).join("");
|
||
} catch (e) {
|
||
recentBox.innerHTML = '<li class="rc-note">Couldn’t reach Last.fm just now.</li>';
|
||
}
|
||
}
|
||
|
||
async function loadTop() {
|
||
if (!LFM_OK || !topBox) { if (topBox) topBox.hidden = true; return; }
|
||
try {
|
||
const data = await lfm("user.gettopartists", { period: "7day", limit: 8 });
|
||
const arr = (data && data.topartists && data.topartists.artist) || [];
|
||
if (!arr.length) { topBox.hidden = true; return; }
|
||
topBox.hidden = false;
|
||
topBox.innerHTML = '<h2 class="sec-title">Top artists · last 7 days</h2>' +
|
||
'<ol class="top-chips">' + arr.map((a, i) =>
|
||
'<li class="top-chip"><a href="' + esc(a.url) + '" target="_blank" rel="noopener">' +
|
||
'<span class="top-rank">' + (i + 1) + "</span>" +
|
||
'<span class="top-name">' + esc(a.name) + "</span>" +
|
||
'<span class="top-plays">' + esc(a.playcount) + " plays</span>" +
|
||
"</a></li>").join("") + "</ol>";
|
||
} catch (e) { topBox.hidden = true; }
|
||
}
|
||
|
||
// =======================================================================
|
||
// boot
|
||
// =======================================================================
|
||
paintHero();
|
||
showIdle(); // headline + lyrics before the socket warms up
|
||
connectLanyard(); // takes over the hero the moment a presence arrives
|
||
loadRecent();
|
||
loadTop();
|
||
requestAnimationFrame(tick);
|
||
if (LFM_OK) setInterval(loadRecent, 45000);
|
||
})(); |