Update backend/terminalManager.js

backend/terminalManager.js

@@ -1,28 +1,84 @@
 const { spawn } = require("child_process");
+const fs = require("fs");
+const path = require("path");
+
 const terminals = {};
 
+/**
+ * Starts or stops a terminal process for a given directory.
+ * @param {string} directoryName - The name of the user directory.
+ * @param {string|null} userDir - The path to the user directory.
+ * @param {boolean} stop - Whether to stop the running process.
+ */
 function handleTerminal(directoryName, userDir, stop = false) {
+  // Stop the running process if requested
   if (stop) {
     if (terminals[directoryName]) {
       terminals[directoryName].kill();
       delete terminals[directoryName];
+      console.log(`[${directoryName}] Terminal stopped successfully.`);
+    } else {
+      console.warn(`[${directoryName}] No running terminal to stop.`);
     }
     return;
   }
 
-  const terminal = spawn("node", ["index.js"], { cwd: userDir });
+  // Validate user directory path
+  if (!userDir || !fs.existsSync(userDir)) {
+    console.error(`[${directoryName}] Error: User directory does not exist at ${userDir}`);
+    return;
+  }
+
+  // Validate index.js existence
+  const indexPath = path.join(userDir, "index.js");
+  if (!fs.existsSync(indexPath)) {
+    console.error(`[${directoryName}] Error: index.js not found in ${userDir}`);
+    return;
+  }
+
+  // Check if a process is already running
+  if (terminals[directoryName]) {
+    console.warn(`[${directoryName}] Warning: A terminal is already running.`);
+    return;
+  }
+
+  // Use the correct Node.js executable
+  const nodePath = process.execPath;
+
+  // Spawn a new terminal process
+  const terminal = spawn(nodePath, ["index.js"], {
+    cwd: userDir,
+    env: process.env,
+    stdio: "pipe",
+  });
+
   terminals[directoryName] = terminal;
 
+  console.log(`[${directoryName}] Terminal process started.`);
+
+  // Handle standard output
   terminal.stdout.on("data", (data) => {
-    console.log(`[${directoryName}] ${data.toString()}`);
+    console.log(`[${directoryName}] STDOUT: ${data.toString()}`);
   });
 
+  // Handle standard error output
   terminal.stderr.on("data", (data) => {
-    console.error(`[${directoryName}] ${data.toString()}`);
+    console.error(`[${directoryName}] STDERR: ${data.toString()}`);
   });
 
-  terminal.on("exit", (code) => {
-    console.log(`[${directoryName}] Terminal exited with code ${code}`);
+  // Handle process errors (e.g., spawn issues)
+  terminal.on("error", (err) => {
+    console.error(`[${directoryName}] Process error: ${err.message}`);
+    delete terminals[directoryName];
+  });
+
+  // Handle process exit
+  terminal.on("exit", (code, signal) => {
+    if (code !== 0) {
+      console.error(`[${directoryName}] Terminal exited with code ${code} and signal ${signal}`);
+    } else {
+      console.log(`[${directoryName}] Terminal exited successfully.`);
+    }
     delete terminals[directoryName];
   });
 }