Plugin and Module implementations

Summary:
Last diff in the the RNW saga.

This change creates the necessary bridgings between the module and the plugin.

With this in place, JS plugins can be written and used. Also, we have a fully functional RNW sample app.

Reviewed By: aigoncharov

Differential Revision: D39087480

fbshipit-source-id: f4fde404716aa619a64553ffa556d060f49c0ac7

react-native/react-native-flipper/windows/ReactNativeFlipper/FlipperReactPluginManager.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#pragma once
+
+#include <FlipperReactPlugin.h>
+#include <folly/dynamic.h>
+#include <unordered_map>
+
+namespace facebook {
+namespace flipper {
+
+class FlipperReactPluginManager {
+  using FlipperReactPluginSubscriptionEvent =
+      std::function<void(std::map<std::string, std::string>)>;
+
+ public:
+  bool registerPlugin(
+      const std::string& pluginId,
+      bool inBackground,
+      FlipperConnectionEvent eventHandler);
+
+  void send(
+      const std::string& pluginId,
+      const std::string& method,
+      const std::string& params);
+
+  void reportError(
+      const std::string& pluginId,
+      const std::string& reason,
+      const std::string& stacktrace);
+
+  void reportError(const std::string& pluginId, const std::string& error);
+  void subscribe(
+      const std::string& pluginId,
+      const std::string& method,
+      FlipperReactPluginSubscriptionEvent eventHandler);
+  void respondSuccess(
+      const std::string& responderId,
+      const std::string& params);
+  void respondError(const std::string& responderId, const std::string& params);
+
+ private:
+  static folly::dynamic getParams(const std::string& param);
+  static void actionWithPlugin(
+      const std::string& pluginId,
+      std::function<void(FlipperReactPlugin*)> action);
+
+  std::unordered_map<
+      std::string,
+      std::shared_ptr<facebook::flipper::FlipperResponder>>
+      responders_;
+};
+
+} // namespace flipper
+} // namespace facebook