refactor(desktop): extract window creation into modules/window.ts

surfsense_desktop/src/modules/window.ts

@@ -0,0 +1,67 @@
+import { app, BrowserWindow, shell, session } from 'electron';
+import path from 'path';
+import { showErrorDialog } from './errors';
+import { getServerPort } from './server';
+
+const isDev = !app.isPackaged;
+const HOSTED_FRONTEND_URL = process.env.HOSTED_FRONTEND_URL as string;
+
+let mainWindow: BrowserWindow | null = null;
+
+export function getMainWindow(): BrowserWindow | null {
+  return mainWindow;
+}
+
+export function createMainWindow(): BrowserWindow {
+  mainWindow = new BrowserWindow({
+    width: 1280,
+    height: 800,
+    minWidth: 800,
+    minHeight: 600,
+    webPreferences: {
+      preload: path.join(__dirname, 'preload.js'),
+      contextIsolation: true,
+      nodeIntegration: false,
+      sandbox: true,
+      webviewTag: false,
+    },
+    show: false,
+    titleBarStyle: 'hiddenInset',
+  });
+
+  mainWindow.once('ready-to-show', () => {
+    mainWindow?.show();
+  });
+
+  mainWindow.loadURL(`http://localhost:${getServerPort()}/login`);
+
+  mainWindow.webContents.setWindowOpenHandler(({ url }) => {
+    if (url.startsWith('http://localhost')) {
+      return { action: 'allow' };
+    }
+    shell.openExternal(url);
+    return { action: 'deny' };
+  });
+
+  const filter = { urls: [`${HOSTED_FRONTEND_URL}/*`] };
+  session.defaultSession.webRequest.onBeforeRequest(filter, (details, callback) => {
+    const rewritten = details.url.replace(HOSTED_FRONTEND_URL, `http://localhost:${getServerPort()}`);
+    callback({ redirectURL: rewritten });
+  });
+
+  mainWindow.webContents.on('did-fail-load', (_event, errorCode, errorDescription, validatedURL) => {
+    console.error(`Failed to load ${validatedURL}: ${errorDescription} (${errorCode})`);
+    if (errorCode === -3) return;
+    showErrorDialog('Page failed to load', new Error(`${errorDescription} (${errorCode})\n${validatedURL}`));
+  });
+
+  if (isDev) {
+    mainWindow.webContents.openDevTools();
+  }
+
+  mainWindow.on('closed', () => {
+    mainWindow = null;
+  });
+
+  return mainWindow;
+}