Use new RVC endpoint; more unit tests

discord/bot.ts

@@ -4,7 +4,6 @@
  */
 
 import {
-    Attachment,
     AttachmentBuilder,
     Client,
     Collection,
@@ -25,7 +24,6 @@ import {
 import fs = require('node:fs');
 import path = require('node:path');
 import fetch, { Blob as NodeFetchBlob } from 'node-fetch';
-import FormData = require('form-data');
 import tmp = require('tmp');
 import { JSDOM } from 'jsdom';
 import { logError, logInfo, logWarn } from '../logging';
@@ -34,6 +32,7 @@ import {
     openDb,
     reactionEmojis,
     recordReaction,
+    requestRVCResponse,
     requestTTSResponse,
     serializeMessageHistory,
     sync,
@@ -354,31 +353,6 @@ async function onNewMessage(message: Message) {
     }
 }
 
-async function requestRVCResponse(src: Attachment): Promise<NodeFetchBlob> {
-    logInfo(`[bot] Downloading audio message ${src.url}`);
-    const srcres = await fetch(src.url);
-    const srcbuf = await srcres.arrayBuffer();
-    const tmpFile = tmp.fileSync();
-    const tmpFileName = tmpFile.name;
-    fs.writeFileSync(tmpFileName, Buffer.from(srcbuf));
-    logInfo(`[bot] Got audio file: ${srcbuf.byteLength} bytes`);
-
-    const queryParams = new URLSearchParams();
-    queryParams.append('token', process.env.LLM_TOKEN || '');
-
-    const fd = new FormData();
-    fd.append('file', fs.readFileSync(tmpFileName), 'voice-message.ogg');
-
-    const rvcEndpoint = `${process.env.RVC_HOST}/rvc?${queryParams.toString()}`;
-    logInfo(`[bot] Requesting RVC response for ${src.id}`);
-    const res = await fetch(rvcEndpoint, {
-        method: 'POST',
-        body: fd,
-    });
-    const resContents = await res.blob();
-    return resContents;
-}
-
 async function scheduleRandomMessage(firstTime = false) {
     if (!firstTime) {
         if (!process.env.MOTD_CHANNEL) {