Let us start here, from square one. No, from Zero!

api/websocket.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <cstdint>
+#include <thread>
+
+namespace api {
+
+    struct WebSocketControllerState;
+    class Controller;
+
+    class WebSocketController {
+    public:
+
+        WebSocketController(Controller *controller, uint16_t port);
+        ~WebSocketController();
+
+        void free_socket();
+        Controller *controller = nullptr;
+        WebSocketControllerState *state = nullptr;
+    };
+}