main.js

const { app, BrowserWindow, Menu, shell } = require('electron')
const fs = require('fs')

const levelDbDir = 'config/icloud-for-linux/Local Storage/leveldb'
const levelDbFile = '/000003.log'
if (!fs.existsSync(process.env.SNAP_USER_DATA + '/.' + levelDbDir)) {
  fs.mkdirSync(process.env.SNAP_USER_DATA + '/.' + levelDbDir, { recursive: true })
  fs.copyFileSync(process.env.SNAP + '/' + levelDbDir + levelDbFile, process.env.SNAP_USER_DATA + '/.' + levelDbDir + levelDbFile)
}

let tld
try {
  tld = fs.readFileSync(process.env.SNAP_USER_COMMON + '/tld', 'utf8').trim()
}
catch {
  tld = '.com'
  fs.writeFileSync(process.env.SNAP_USER_COMMON + '/tld', tld)
}

const appName = 'iCloud' 
const appUrl = 'https://www.icloud' + tld + '/'

function createWindow() {
  Menu.setApplicationMenu(null)

  const mainWindow = new BrowserWindow({
    width: 1000,
    height: 600,
    title: appName
  })

  mainWindow.loadURL(appUrl + process.argv[2])

  mainWindow.webContents.on('will-navigate', (event, url) => {
    if (!url.startsWith(appUrl)) {
      event.preventDefault()
      shell.openExternal(url)
    }
  })

  mainWindow.on('close', () => {
    app.exit(0)
 })
}

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

app.on('window-all-closed', function () {
  app.quit()
})