#ifndef COUCH_H
#define COUCH_H
#include <GL/glew.h>
#include <GLFW/glfw3.h>

#include <vector>

#include "types.h"
#include "Window.h"

typedef void (*KeyHandler)(int key, int code, int action, int mods);
typedef void (*MousePositionHandler)(double xpos, double ypos, double xrel, double yrel);

class Input {
public:
	enum MouseMode {
		VISIBLE, HIDDEN, CAPTURED
	};
	
  static Input *GetInstance();
  void Use(Window *window);
	void SetMouseMode(MouseMode mouseMode);
  std::vector<KeyHandler> keyHandlers;
  std::vector<MousePositionHandler> mousePositionHandlers;
private:
  bool firstMousePositionUpdate = true;
  double lastx, lasty;
	MouseMode mouseMode;
	Window *window;
  Input();
  static void HandleKeys(GLFWwindow *_, int key, int code, int action, int mods);
  static void HandleMousePosition(GLFWwindow *_, double xpos, double ypos);
  static Input *instance;
};

#endif // COUCH_H