separate action dispatch from server

Summary: This diff moves the first small pieces of getting device detection up and running to `server/`, and the wiring between FlipperServer and flipper core / redux is setting up specific events and dispatch actions from there.

Reviewed By: timur-valiev

Differential Revision: D30276776

fbshipit-source-id: b30b996d03c27459815bebeb97b05b5fe5d24bec

desktop/app/src/server/desktopDevice.tsx

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import MacDevice from '../server/devices/MacDevice';
+import WindowsDevice from '../server/devices/WindowsDevice';
+import {FlipperServer} from './FlipperServer';
+
+export default (flipperServer: FlipperServer) => {
+  let device;
+  if (process.platform === 'darwin') {
+    device = new MacDevice();
+  } else if (process.platform === 'win32') {
+    device = new WindowsDevice();
+  } else {
+    return;
+  }
+  flipperServer.emit('device-connected', device);
+};