refactor: make hardcoded values configurable via env vars

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,