Function createWindow

src/main/windows/main.ts:614–854

(options?: { chatId?: string; subChatId?: string })

 * @param options.subChatId Open this sub-chat in the new window
 */
export function createWindow(options?: { chatId?: string; subChatId?: string }): BrowserWindow {
  // Register IPC handlers before creating first window
  registerIpcHandlers()

  // Read Windows frame preference
  const useNativeFrame = getUseNativeFramePreference()

  const window = new BrowserWindow({
    width: 1400,
    height: 900,
    minWidth: 500, // Allow narrow mobile-like mode
    minHeight: 600,
    show: false,
    title: "1Code",
    backgroundColor: nativeTheme.shouldUseDarkColors ? "#09090b" : "#ffffff",
    // hiddenInset shows native traffic lights inset in the window
    // hiddenInset hides the native title bar but keeps traffic lights visible
    titleBarStyle: process.platform === "darwin" ? "hiddenInset" : "default",
    trafficLightPosition:
      process.platform === "darwin" ? { x: 15, y: 12 } : undefined,
    // Windows: Use native frame or frameless based on user preference
    ...(process.platform === "win32" && {
      frame: useNativeFrame,
      autoHideMenuBar: true,
    }),
    webPreferences: {
      preload: join(__dirname, "../preload/index.js"),
      nodeIntegration: false,
      contextIsolation: true,
      sandbox: false, // Required for electron-trpc
      webSecurity: true,
      partition: "persist:main", // Use persistent session for cookies
    },
  })

  // Register window with manager and get stable ID for localStorage namespacing
  const stableWindowId = windowManager.register(window)
  console.log(
    `[Main] Created window ${window.id} with stable ID "${stableWindowId}" (total: ${windowManager.count()})`,
  )

  // Setup tRPC IPC handler (singleton pattern)
  if (ipcHandler) {
    // Reuse existing handler, just attach new window
    ipcHandler.attachWindow(window)
  } else {
    // Create new handler with context
    ipcHandler = createIPCHandler({
      router: createAppRouter(getWindow),
      windows: [window],
      createContext: async () => ({
        getWindow,
      }),
    })
  }

  // Show window when ready
  window.on("ready-to-show", () => {