chore: move desktop files

desktop/main.js

@@ -0,0 +1,68 @@
+const {app, BrowserWindow, shell} = require('electron')
+const path = require('path')
+const express = require('express')
+const eApp = express()
+const portInUse = require('./portInUse.js')
+
+const frontendPath = 'frontend/'
+
+function createWindow() {
+	// Create the browser window.
+	const mainWindow = new BrowserWindow({
+		width: 1680,
+		height: 960,
+		webPreferences: {
+			nodeIntegration: true,
+		}
+	})
+
+	// Open external links in the browser
+	mainWindow.webContents.setWindowOpenHandler(({ url }) => {
+  	shell.openExternal(url);
+	  return { action: 'deny' };
+	});
+
+	// Hide the toolbar
+	mainWindow.setMenuBarVisibility(false)
+
+	// We try to use the same port every time and only use a different one if that does not succeed.
+	let port = 45735
+	portInUse(port, used => {
+		if(used) {
+			console.log(`Port ${port} already used, switching to a random one`)
+			port = 0 // This lets express choose a random port
+		}
+
+		// Start a local express server to serve static files
+		eApp.use(express.static(path.join(__dirname, frontendPath)))
+		// Handle urls set by the frontend
+		eApp.get('*', (request, response, next) => {
+			response.sendFile(`${__dirname}/${frontendPath}index.html`);
+		})
+		const server = eApp.listen(port,  '127.0.0.1', () => {
+			console.log(`Server started on port ${server.address().port}`)
+			mainWindow.loadURL(`http://127.0.0.1:${server.address().port}`)
+		})
+	})
+}
+
+// This method will be called when Electron has finished
+// initialization and is ready to create browser windows.
+// Some APIs can only be used after this event occurs.
+app.whenReady().then(() => {
+	createWindow()
+
+	app.on('activate', function () {
+		// On macOS it's common to re-create a window in the app when the
+		// dock icon is clicked and there are no other windows open.
+		if (BrowserWindow.getAllWindows().length === 0) createWindow()
+	})
+})
+
+// Quit when all windows are closed, except on macOS. There, it's common
+// for applications and their menu bar to stay active until the user quits
+// explicitly with Cmd + Q.
+app.on('window-all-closed', () => {
+	if (process.platform !== 'darwin') app.quit()
+})
+