format everything, make now playying actually good

.env.example

@@ -1,4 +1,100 @@
-WEBHOOK_URL=https://discord.com/api/webhooks/no/no
+import { Client, GatewayIntentBits } from "discord.js";
+import crypto from "crypto";
+import { existsSync, readFileSync, writeFileSync } from "fs";
+
+/* ================= CONFIG ================= */
+const REFRESH_MS = Number(process.env.REFRESH_MS ?? 15_000);
+const STATE_FILE = "./state.json";
+
+/* ================= DISCORD ================= */
+const client = new Client({
+  intents: [GatewayIntentBits.Guilds],
+});
+
+/* ================= STATE ================= */
+let messageId = null;
+let lastSignature = null;
+
+if (existsSync(STATE_FILE)) {
+  try {
+    const state = JSON.parse(readFileSync(STATE_FILE, "utf8"));
+    messageId = state.messageId ?? null;
+    lastSignature = state.lastSignature ?? null;
+  } catch {}
+}
+
+function saveState() {
+  writeFileSync(
+    STATE_FILE,
+    JSON.stringify({ messageId, lastSignature }, null, 2)
+  );
+}
+
+/* ================= NAVIDROME AUTH ================= */
+function navidromeAuth() {
+  const salt = crypto.randomBytes(6).toString("hex");
+  const token = crypto
+    .createHash("md5")
+    .update(process.env.NAVIDROME_PASS + salt)
+    .digest("hex");
+
+  return { salt, token };
+}
+
+function nowPlayingUrl() {
+  const { salt, token } = navidromeAuth();
+  return `${process.env.NAVIDROME_URL}/rest/getNowPlaying` +
+    `?u=${process.env.NAVIDROME_USER}` +
+    `&t=${token}&s=${salt}&f=json&v=1.16.1&c=discord-bot`;
+}
+
+function coverFetchUrl(id) {
+  const { salt, token } = navidromeAuth();
+  return `${process.env.NAVIDROME_URL}/rest/getCoverArt` +
+    `?u=${process.env.NAVIDROME_USER}` +
+    `&t=${token}&s=${salt}&v=1.16.1&c=discord-bot` +
+    `&id=${id}&size=96`;
+}
+
+/* ================= UTIL ================= */
+function colorFromString(str) {
+  let hash = 0;
+  for (const c of str) hash = (hash << 5) - hash + c.charCodeAt(0);
+  return Math.abs(hash) % 0xffffff;
+}
+
+function signature(entries) {
+  return entries
+    .map(e => `${e.username}:${e.id}:${e.minutesAgo ?? 0}`)
+    .join("|");
+}
+
+/* ================= NAVIDROME ================= */
+async function getNowPlaying() {
+  const res = await fetch(nowPlayingUrl());
+  if (!res.ok) throw new Error("Failed to fetch now playing");
+
+  const json = await res.json();
+  return json["subsonic-response"].nowPlaying?.entry ?? [];
+}
+
+/* ================= MESSAGE BUILD ================= */
+async function buildMessage(entries) {
+  if (!entries.length) {
+    return {
+      embeds: [{
+        title: "Nothing playing",
+        description: "No active listeners",
+        color: 0x808080,
+      }],
+      files: [],
+    };
+  }
+
+  const embeds = [];
+  const files = [];
+
+  for (let i = 0; i < e
 DISCORD_TOKEN="no.no"
 LASTFM_API_KEY=no