Fix port conflicts

electron/constants.js

@@ -1,4 +1,6 @@
+const PORT_RANGE = { startPort: 39152, endPort: 65535 };
 const ERROR_ADDRESS_IN_USE = 'EADDRINUSE';
 module.exports = {
+  PORT_RANGE,
   ERROR_ADDRESS_IN_USE,
 };

electron/main.js

@@ -25,14 +25,16 @@ const {
   OperateDirectory,
 } = require('./install');
 const { killProcesses } = require('./processes');
+const { isPortAvailable, findAvailablePort } = require('./ports');
+const { PORT_RANGE } = require('./constants');
 
 // Attempt to acquire the single instance lock
 const singleInstanceLock = app.requestSingleInstanceLock();
 if (!singleInstanceLock) app.quit();
 
 const platform = os.platform();
 const isDev = process.env.NODE_ENV === 'development';
-const appConfig = {
+let appConfig = {
   width: 600,
   height: 800,
   ports: {
@@ -41,7 +43,7 @@ const appConfig = {
       next: 3000,
     },
     prod: {
-      operate: 8000, // TOFIX
+      operate: 8000,
       next: 3000,
     },
   },
@@ -170,7 +172,7 @@ async function launchDaemon() {
   const check = new Promise(function (resolve, reject) {
     operateDaemon = spawn(OperateCmd, [
       'daemon',
-      '--port=8000',
+      `--port=${appConfig.ports.prod.operate}`,
       `--home=${OperateDirectory}`,
     ]);
     operateDaemonPid = operateDaemon.pid;
@@ -194,7 +196,7 @@ async function launchDaemonDev() {
       'run',
       'operate',
       'daemon',
-      '--port=8000',
+      `--port=${appConfig.ports.dev.operate}`,
       '--home=.operate',
     ]);
     operateDaemonPid = operateDaemon.pid;
@@ -238,7 +240,12 @@ async function launchNextApp() {
 
 async function launchNextAppDev() {
   await new Promise(function (resolve, reject) {
-    nextAppProcess = spawn('yarn', ['dev:frontend']);
+    process.env.NEXT_PUBLIC_BACKEND_PORT = appConfig.ports.dev.operate; // must set next env var to connect to backend
+    nextAppProcess = spawn('yarn', [
+      'dev:frontend',
+      '--port',
+      appConfig.ports.dev.next,
+    ]);
     nextAppProcessPid = nextAppProcess.pid;
     nextAppProcess.stdout.on('data', (data) => {
       console.log(data.toString().trim());
@@ -268,16 +275,54 @@ ipcMain.on('check', async function (event, argument) {
         'response',
         'Starting Operate Daemon In Development Mode',
       );
+
+      const daemonDevPortAvailable = await isPortAvailable(
+        appConfig.ports.dev.operate,
+      );
+
+      if (!daemonDevPortAvailable) {
+        appConfig.ports.dev.operate = await findAvailablePort({
+          ...PORT_RANGE,
+        });
+      }
       await launchDaemonDev();
       event.sender.send(
         'response',
         'Starting Frontend Server In Development Mode',
       );
+
+      const frontendDevPortAvailable = await isPortAvailable(
+        appConfig.ports.dev.next,
+      );
+
+      if (!frontendDevPortAvailable) {
+        appConfig.ports.dev.next = await findAvailablePort({
+          ...PORT_RANGE,
+          excludePorts: [appConfig.ports.dev.operate],
+        });
+      }
       await launchNextAppDev();
     } else {
       event.sender.send('response', 'Starting Operate Daemon');
+      const daemonPortAvailable = await isPortAvailable(
+        appConfig.ports.prod.operate,
+      );
+      if (!daemonPortAvailable) {
+        appConfig.ports.prod.operate = await findAvailablePort({
+          ...PORT_RANGE,
+        });
+      }
       await launchDaemon();
       event.sender.send('response', 'Starting Frontend Server');
+      const frontendPortAvailable = await isPortAvailable(
+        appConfig.ports.prod.next,
+      );
+      if (!frontendPortAvailable) {
+        appConfig.ports.prod.next = await findAvailablePort({
+          ...PORT_RANGE,
+          excludePorts: [appConfig.ports.prod.operate],
+        });
+      }
       await launchNextApp();
     }
 

electron/ports.js

@@ -1,56 +1,79 @@
 const net = require('net');
 const { ERROR_ADDRESS_IN_USE } = require('./constants');
 
-const portRange = { startPort: 39152, endPort: 65535 }; //only source dynamic and private ports https://www.arubanetworks.com/techdocs/AOS-S/16.10/MRG/YC/content/common%20files/tcp-por-num-ran.htm
-
-const isPortAvailable = async (port) => {
+/**
+ * Finds an available port within the specified range, excluding specified ports.
+ * @param {number} startPort - The start of the port range.
+ * @param {number} endPort - The end of the port range.
+ * @param {Array<number>} excludePorts - An array of ports to be skipped.
+ * @returns {Promise<number>} The first available port found within the range that's not excluded.
+ */
+function findAvailablePort({ startPort, endPort, excludePorts = [] }) {
   return new Promise((resolve, reject) => {
-    const server = net.createServer();
+    let currentPort = startPort;
 
-    server.once('error', (err) => {
-      if (err.code === ERROR_ADDRESS_IN_USE) {
-        resolve(false);
-      } else {
-        reject(err);
+    const tryPort = (port) => {
+      if (excludePorts.includes(port)) {
+        if (currentPort < endPort) {
+          tryPort(++currentPort);
+        } else {
+          reject(
+            new Error(
+              `Unable to find an available port between ${startPort} and ${endPort} excluding specified ports.`,
+            ),
+          );
+        }
+        return;
       }
-    });
 
-    server.once('listening', () => {
-      server.close();
-      resolve(true);
-    });
+      const server = net.createServer();
 
-    server.listen(port, 'localhost');
-  });
-};
-
-const findAvailablePort = async (startPort, endPort) => {
-  return new Promise((resolve, reject) => {
-    const server = net.createServer();
+      server.listen(port, () => {
+        server.close(() => {
+          resolve(port);
+        });
+      });
 
-    server.on('error', (err) => {
-      if (err.code === ERROR_ADDRESS_IN_USE) {
-        if (startPort < endPort) {
-          findAvailablePort(startPort + 1, endPort)
-            .then(resolve)
-            .catch(reject);
+      server.on('error', (err) => {
+        if (err.code === ERROR_ADDRESS_IN_USE && currentPort < endPort) {
+          // Try the next port if the current one is in use or excluded
+          tryPort(++currentPort);
         } else {
-          reject(new Error('No available ports in the specified range'));
+          reject(
+            new Error(
+              `Unable to find an available port between ${startPort} and ${endPort} excluding specified ports.`,
+            ),
+          );
         }
-      } else {
-        reject(err);
-      }
-    });
+      });
+    };
+
+    tryPort(currentPort);
+  });
+}
 
-    server.on('listening', () => {
-      const port = server.address().port;
+/**
+ * Checks if a port is available.
+ * @param {number} port - The port to check.
+ * @returns {Promise<boolean>} Whether the port is available.
+ */
+function isPortAvailable(port) {
+  return new Promise((resolve) => {
+    const server = net.createServer();
+
+    server.listen(port, () => {
       server.close(() => {
-        resolve(port);
+        resolve(true);
       });
     });
 
-    server.listen(startPort, 'localhost');
+    server.on('error', () => {
+      resolve(false);
+    });
   });
-};
+}
 
-module.exports = { isPortAvailable, portRange, findAvailablePort };
+module.exports = {
+  findAvailablePort,
+  isPortAvailable,
+};