index.js

const { ipcRenderer } = require('electron');

const notification = document.getElementById('notification');
const message = document.getElementById('message');
const restartButton = document.getElementById('restart-button');
ipcRenderer.on('update_available', () => {
    ipcRenderer.removeAllListeners('update_available');
    message.innerText = 'A new update is available. Downloading now...';
    notification.classList.remove('hidden');
});

ipcRenderer.on('update_downloaded', () => {
    ipcRenderer.removeAllListeners('update_downloaded');
    message.innerText = 'Update Downloaded. It will be installed on restart. Restart now?';
    restartButton.classList.remove('hidden');
    notification.classList.remove('hidden');
    console.log("update found");
});

function closeNotification() {
    notification.classList.add('hidden');
}
function restartApp() {
    ipcRenderer.send('restart_app');
}