Improve alsa usage

- added command handler to check devices

Client/discord-bot/commands/join.js

@@ -39,7 +39,7 @@ export default async function join({interaction= undefined, guildID= undefined,
         selfDeaf: false,
     });
 
-    const audioInstance = createAudioInstance();
+    const audioInstance = await createAudioInstance();
 
     audioInstance.on('data', buffer => {
         buffer = Buffer.from(buffer);

Client/discord-bot/controllers/audioController.js

@@ -2,7 +2,7 @@
 import { getDeviceID } from '../utilities/configHandler.js';
 // Modules
 import alsaInstance from 'alsa-capture';
-import executeAsyncConsoleCommand from "../utilities/executeConsoleCommand.js";
+import { returnAlsaDeviceObject } from "../utilities/executeConsoleCommands.js";
 // Debug
 import ModuleDebugBuilder from "../utilities/moduleDebugBuilder.js";
 // Global Vars
@@ -16,8 +16,8 @@ const log = new ModuleDebugBuilder("bot", "audioController");
  * @param deviceId The ID of the device being queried
  * @returns {unknown}
  */
-export function confirmAudioDevice({deviceName = undefined, deviceId = undefined}){
-    const deviceList = getAudioDevices();
+export async function confirmAudioDevice({deviceName = undefined, deviceId = undefined}){
+    const deviceList = await getAudioDevices();
     if (!deviceName && !deviceId) throw new Error("No device given");
     if (deviceId) return deviceList.find(device => device.id === deviceId);
     if (deviceName) return deviceList.find(device => device.name === deviceName);
@@ -28,10 +28,12 @@ export function confirmAudioDevice({deviceName = undefined, deviceId = undefined
  *
  * @returns {unknown[]}
  */
-export function getAudioDevices(){
+export async function getAudioDevices(){
     // Exec output contains both stderr and stdout outputs    
-    const deviceList = executeAsyncConsoleCommand("arecord -L");
+    const deviceList = await returnAlsaDeviceObject();
     log.DEBUG("Device list: ", deviceList);
+
+    return deviceList;
 }
 
 /**
@@ -40,15 +42,15 @@ export function getAudioDevices(){
  *
  * @returns new portAudio.AudioIO
  */
-export function createAudioInstance() {
-    const selectedDevice = confirmAudioDevice({deviceId: getDeviceID()});//{deviceName: "VoiceMeeter VAIO3 Output (VB-Au"});
+export async function createAudioInstance() {
+    const selectedDevice = await confirmAudioDevice({deviceId: getDeviceID()});//{deviceName: "VoiceMeeter VAIO3 Output (VB-Au"});
     log.DEBUG("Device selected from config: ", selectedDevice);
     // Create an instance of AudioIO with outOptions (defaults are as below), which will return a WritableStream
     return new alsaInstance({        
         channels: 2,
         format: "S16_BE",
         rate: 48000,
-        device: selectedDevice.id ?? "default",  // Use -1 or omit the deviceId to select the default device
+        device: selectedDevice.name ?? "default",  // Use -1 or omit the deviceId to select the default device
         periodSize: 100,  //(48000 / 1000) * 20, //(48000 * 16 * 2) / 1000 * 20 // (48000 * (16 / 8) * 2) / 60 / 1000 * 20  //0.025 * 48000 / 2
         periodTime: undefined,
 //        highwaterMark: 3840

Client/discord-bot/utilities/executeConsoleCommands.js

@@ -26,3 +26,24 @@ export default async function executeAsyncConsoleCommand(consoleCommand) {
     // TODO add some error checking
     return output;
 }
+
+export async function returnAlsaDeviceObject() {
+    const listAlsaDevicesCommand = "arecord -L";
+    const commandResponse = await executeAsyncConsoleCommand(listAlsaDevicesCommand);
+    const brokenCommand = String(commandResponse).split('\n');
+    var devices = [];
+    var i = 0;
+    
+    for (const responseLine of brokenCommand) {
+        if (!String(responseLine).match(/^\s/g)) {
+            const tempDevice = {
+                id: i,
+                name: responseLine
+            }
+            devices.push(tempDevice);
+            i += 1;
+        }
+    }    
+
+    return devices;
+}