main.js

const { app, BrowserWindow } = require('electron');
const path = require('path');

function createWindow () {
  const win = new BrowserWindow({
    width: 420,
    height: 800,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      nodeIntegration: true,
      contextIsolation: false
    },
    resizable: false,
    title: "Chat Assistant"
  });

  win.loadFile('index.html');
}

app.whenReady().then(() => {
  createWindow();

  app.on('activate', function () {
    if (BrowserWindow.getAllWindows().length === 0) createWindow();
  });
});

app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit();
});