Implement routes to start and stop client recording

Client/controllers/botController.js

@@ -10,6 +10,7 @@ const { closeProcessWrapper } = require("../utilities/utilities");
 
 // Global vars
 let pythonProcess;
+let recordingProcess;
 
 /**
  * Get Status of the discord process
@@ -81,4 +82,78 @@ exports.leaveServer = async (req, res) => {
     pythonProcess = await closeProcessWrapper(pythonProcess);
     
     return res.sendStatus(202);
+}
+
+/**
+ * Start a recording of what the bot is listening to, if it's currently connected
+ * 
+ * @param {*} req 
+ * @param {*} res 
+ */
+exports.startRecording = async (req, res) => {
+    log.INFO("Starting recording")
+    //if (pythonProcess === undefined) return res.sendStatus(204);
+    if (!recordingProcess === undefined) return res.sendStatus(202);
+    const deviceId = process.env.AUDIO_DEVICE_ID;
+    const filename = "./recordings/" + new Date().toJSON().slice(0,10) + ".wav";
+
+    // Joining the server to record
+    log.INFO("Start recording: ", deviceId, filename);
+    if (process.platform === "win32") {
+        log.DEBUG("Starting Windows Python");        
+        recordingProcess = await spawn('python', [resolve(__dirname, "../pdab/recorder.py"), deviceId, filename ], { cwd: resolve(__dirname, "../pdab/").toString() });        
+    }
+    else {
+        log.DEBUG("Starting Linux Python");
+        recordingProcess = await spawn('python3', [resolve(__dirname, "../pdab/recorder.py"), deviceId, filename ], { cwd: resolve(__dirname, "../pdab/") });
+    }
+
+    await this.getProcessOutput(recordingProcess);
+    
+    return res.sendStatus(200);
+}
+
+/**
+ * Stop the recording if the bot is currently recording
+ * 
+ * @param {*} req 
+ * @param {*} res 
+ */
+exports.stopRecording = async (req, res) => {
+    log.INFO("Stopping recording the server");
+    if (!recordingProcess) return res.sendStatus(202)
+
+    recordingProcess = await closeProcessWrapper(recordingProcess);
+    
+    return res.sendStatus(200);
+}
+
+
+/**
+ * Get the output of a running process
+ * 
+ * @param {*} runningProcess 
+ * @returns 
+ */
+exports.getProcessOutput = async (runningProcess) => {
+    let fullOutput;
+    runningProcess.stdout.setEncoding('utf8');    
+    runningProcess.stdout.on("data", (data) => {
+        botLog.VERBOSE("From Process: ", data);
+        fullOutput += data.toString();
+    });
+
+    runningProcess.stderr.on('data', (data) => {
+        botLog.VERBOSE(`stderr: ${data}`);
+        fullOutput += data.toString();
+      });
+      
+      runningProcess.on('close', (code) => {
+    log.DEBUG(`child process exited with code ${code}`);
+    log.VERBOSE("Full output from bot: ", fullOutput);
+    }); 
+
+    runningProcess.on("error", (code, signal) => {
+        log.ERROR("Error from the process: ", code, signal);
+    });
 }