refactor: make hardcoded values configurable via env vars

src/config.ts

@@ -5,6 +5,15 @@ export interface AppConfig {
   recordingSegmentMs: number;
   decoderRotateMs: number;
   decoderCooldownMs: number;
+  webserverPort: number;
+  voiceConnectionTimeoutMs: number;
+  reconnectTimeoutMs: number;
+  audioStreamSilenceDurationMs: number;
+  packetFilterMinSize: number;
+  opusFrameSize: number;
+  audioSampleRate: number;
+  audioChannels: number;
+  avatarSize: number;
 }
 
 export function parseBoolean(
@@ -30,7 +39,22 @@ export function loadConfig(env: NodeJS.ProcessEnv = process.env): AppConfig {
     recordingsDir: env.RECORDINGS_DIR ?? "./recordings",
     recordingSegmentMs: parsePositiveNumber(env.RECORDING_SEGMENT_MS, 5_000),
     decoderRotateMs: parsePositiveNumber(env.DECODER_ROTATE_MS, 5_000),
-    decoderCooldownMs: 30_000,
+    decoderCooldownMs: parsePositiveNumber(env.DECODER_COOLDOWN_MS, 30_000),
+    webserverPort: parsePositiveNumber(env.WEBSERVER_PORT, 3000),
+    voiceConnectionTimeoutMs: parsePositiveNumber(
+      env.VOICE_CONNECTION_TIMEOUT_MS,
+      15_000,
+    ),
+    reconnectTimeoutMs: parsePositiveNumber(env.RECONNECT_TIMEOUT_MS, 5_000),
+    audioStreamSilenceDurationMs: parsePositiveNumber(
+      env.AUDIO_STREAM_SILENCE_DURATION_MS,
+      3000,
+    ),
+    packetFilterMinSize: parsePositiveNumber(env.PACKET_FILTER_MIN_SIZE, 8),
+    opusFrameSize: parsePositiveNumber(env.OPUS_FRAME_SIZE, 960),
+    audioSampleRate: parsePositiveNumber(env.AUDIO_SAMPLE_RATE, 48000),
+    audioChannels: parsePositiveNumber(env.AUDIO_CHANNELS, 2),
+    avatarSize: parsePositiveNumber(env.AVATAR_SIZE, 64),
   };
 }
 

src/index.ts

@@ -59,7 +59,7 @@ client.on("ready", async () => {
   }
 
   // Start Webserver
-  startWebserver(3000);
+  startWebserver(config.webserverPort);
 });
 
 client.on("error", (err) => {

src/recorder.ts

@@ -59,7 +59,11 @@ export async function startRecording(
 
   // Tunggu sampai benar-benar terhubung
   try {
-    await entersState(connection, VoiceConnectionStatus.Ready, 15_000);
+    await entersState(
+      connection,
+      VoiceConnectionStatus.Ready,
+      config.voiceConnectionTimeoutMs,
+    );
     if (config.verbose) {
       console.log("[recorder] Connected to voice channel. Recording started.");
     }
@@ -97,7 +101,7 @@ export async function startRecording(
 
     try {
       // --- OGG file recording with segment rotation ---
-      const packetFilterForOgg = new PacketFilter(8);
+      const packetFilterForOgg = new PacketFilter(config.packetFilterMinSize);
       const audioStream = receiver.subscribe(userId, {
         end: {
           behavior: EndBehaviorType.AfterSilence,
@@ -201,8 +205,16 @@ export async function startRecording(
     }
     try {
       await Promise.race([
-        entersState(connection, VoiceConnectionStatus.Signalling, 5_000),
-        entersState(connection, VoiceConnectionStatus.Connecting, 5_000),
+        entersState(
+          connection,
+          VoiceConnectionStatus.Signalling,
+          config.reconnectTimeoutMs,
+        ),
+        entersState(
+          connection,
+          VoiceConnectionStatus.Connecting,
+          config.reconnectTimeoutMs,
+        ),
       ]);
       // Berhasil reconnect
     } catch {

src/recorder/audioStream.ts

@@ -1,4 +1,5 @@
 import { EndBehaviorType, type VoiceReceiver } from "@discordjs/voice";
+import { config } from "../config";
 
 export interface AudioStreamHandlers {
   onPacket: (chunk: Buffer) => void;
@@ -14,7 +15,7 @@ export function subscribeToAudioStream(
   const audioStream = receiver.subscribe(userId, {
     end: {
       behavior: EndBehaviorType.AfterSilence,
-      duration: 3000,
+      duration: config.audioStreamSilenceDurationMs,
     },
   });
 

src/recorder/decoder.ts

@@ -1,4 +1,5 @@
 import prism from "prism-media";
+import { config } from "../config";
 
 export interface OpusDecoderOptions {
   cooldownMs: number;
@@ -23,7 +24,11 @@ export class OpusDecoder {
     this.createDecoderFn =
       options.createDecoder ??
       (() =>
-        new prism.opus.Decoder({ frameSize: 960, channels: 2, rate: 48000 }));
+        new prism.opus.Decoder({
+          frameSize: config.opusFrameSize,
+          channels: config.audioChannels as 1 | 2,
+          rate: config.audioSampleRate as 8000 | 12000 | 16000 | 24000 | 48000,
+        }));
   }
 
   rotateIfNeeded(): void {

src/recorder/metadata.ts

@@ -1,5 +1,6 @@
 import path from "node:path";
 import type { Client, VoiceChannel } from "discord.js-selfbot-v13";
+import { config } from "../config";
 import type { SegmentMetadata, SegmentState, UserMetadata } from "../types";
 
 export async function collectUserMetadata(
@@ -30,8 +31,19 @@ export async function collectUserMetadata(
     tag: user?.tag ?? "Unknown#0000",
     displayName: member?.displayName ?? username,
     avatarUrl:
-      user?.displayAvatarURL({ format: "png", size: 64 }) ??
-      "https://cdn.discordapp.com/embed/avatars/0.png",
+      user?.displayAvatarURL({
+        format: "png",
+        size: config.avatarSize as
+          | 16
+          | 32
+          | 64
+          | 128
+          | 256
+          | 512
+          | 1024
+          | 2048
+          | 4096,
+      }) ?? "https://cdn.discordapp.com/embed/avatars/0.png",
     bot: user?.bot ?? false,
     roles,
     highestRole: roles[0] ?? null,