Add SingleInstanceLock

main.js

@@ -4,17 +4,18 @@ const path = require('node:path')
 const socketio = require('socket.io-client')
 
 
-const socket = socketio('ws://184.83.153.182:5000/')
-socket.emit('join-notifications')
+let win = null
 
-socket.on('connect-notifications', () => {
-  console.log('connected to notification stream')
-  showNotification('Websocket Connected', "You successfully connected to the websocket.")
-})
+let getlock = app.requestSingleInstanceLock()
 
-socket.on('send-notification', (data) => {
-  showNotification(data.title, data.body)
-})
+if(!getlock){
+  app.quit()
+} else {
+  if (win) {
+    if (win.isMinimized()) win.restore()
+    win.focus()
+  }
+}
 
 const createWindow = () => {
   if (!tray){
@@ -76,6 +77,18 @@ app.whenReady().then(() => {
       createWindow()
     }
   })
+  const socket = socketio('ws://184.83.153.182:5000/')
+  socket.emit('join-notifications')
+
+  socket.on('connect-notifications', () => {
+    console.log('connected to notification stream')
+    showNotification('Websocket Connected', "You successfully connected to the websocket.")
+  })
+
+  socket.on('send-notification', (data) => {
+    showNotification(data.title, data.body)
+  })
+
 })
 
 app.on('window-all-closed', (event) => {