chore: Added comments to code

Author: CodeMaster17

express_backend/code/generateFile.js

@@ -9,10 +9,19 @@ if (!fs.existsSync(dirCodes)) {
 }
 
 const generateFile = async (format, content) => {
+
+  // generating random id
   const jobId = uuid();
+
+  // generating name of the file
   const filename = `${jobId}.${format}`;
+
+  // fetching file name
   const filepath = path.join(dirCodes, filename);
-  await fs.writeFileSync(filepath, content);
+
+  // write incoming on the file
+  fs.writeFileSync(filepath, content);
+
   return filepath;
 };
 

express_backend/code/job_queue_playground.js

@@ -8,26 +8,51 @@ const NUM_WORKERS = 5;
 
 jobQueuePlayground.process(NUM_WORKERS, async ({ data }) => {
     const jobId = data.id;
+
+    // finding the job with id of the job
     const job = await jobs.findById(jobId);
+
+    // if job not found, throw error
     if (job === undefined) {
         throw Error(`cannot find Job with id ${jobId}`);
     }
-    console.log("data", data)
+
+
     try {
-        console.log("Inside try block of jobQueue of playground")
+
         let output;
+
+        // writing started at time
         job["startedAt"] = new Date();
+
+        // 
         if (job.language === "cpp") {
+
+            // executing code for C++
             output = await executeCpp(job.filepath, data.inputs);
+
         } else if (job.language === "py") {
-            console.log("Inside python block")
+
+            // executing code for python
             output = await executePy(job.filepath, data.inputs);
         }
+
         job["completedAt"] = new Date();
+
+        // setting up the output generated by the code
         job["output"] = output;
+
+        // output generated -> success, job executed successfully
+        // doesn't matter if code contains error
+        // it just shows, wheather code entered executed correctly
+        // or not
         job["status"] = "success";
+
+        // saving the job
         await job.save();
+
         return true;
+
     } catch (err) {
         job["completedAt"] = new Date();
         job["output"] = JSON.stringify(err);