#pragma once

#include <map>

#include <glm/glm.hpp>

#include "KeyObserver.h"

struct KeyState {
	bool IsPressed;
	bool WasPressed;
	bool WasReleased;
};

class InputSystem
{
private:
	GLFWwindow* _window;

	std::map<int, KeyObserver> _keyCodeDictionaryObserver;

public:
	InputSystem() { _window = nullptr; }

	void ObserveKey(int key);
	void Update();
	void SetWindow(GLFWwindow* window);

	bool IsLeftMouseDown() const;
	bool IsRightMouseDown() const;

	void GetMousePos(glm::vec2& position) const;
	void GetPickingRay(const glm::mat4& tansform, glm::vec3& startingPoint, glm::vec3& direction) const;
	

	bool IsKeyPressed(int key) { return _keyCodeDictionaryObserver[key].IsPressed; }
	bool WasKeyPressed(int key) { return _keyCodeDictionaryObserver[key].WasPressed; }
	bool WasKeyReleased(int key) { return _keyCodeDictionaryObserver[key].WasReleased; }
};