#pragma once

#ifndef SNAKE_GAMESTATEMANAGER_HXX
#define SNAKE_GAMESTATEMANAGER_HXX

#include "LoadingState.hxx"
#include "SplashState.hxx"
#include "MenuState.hxx"
#include "PlayingState.hxx"
#include "GameOverState.hxx"
#include "HighScoreState.hxx"
#include "CreditsState.hxx"

#include <stack>

#include "../NonCopyable.hxx"

class SDLWindow;

enum class GameStates {
  Loading,
  Splash,
  MainMenu,
  Game,
  GameOver,
  HighScores,
  Credits,
};

class GameStateManager final : private NonCopyable {
public:
  explicit GameStateManager(SDLWindow& window);

  ~GameStateManager();

  GameState* current();

  GameState* parent();

  void push_state(GameStates new_state);

  void pop_state();

  void replace_state(GameStates new_state);

  SDLWindow& window()
  {
    return window_;
  }

private:
  SDLWindow& window_;
  std::stack<GameStates> states_;

  GameState* enum_to_state(GameStates state);

  LoadingState loading_;
  SplashState splash_;
  MenuState menu_;
  PlayingState game_;
  GameOverState game_over_;
  HighScoreState high_score_;
  CreditsState credits_;
};

#endif // SNAKE_GAMESTATEMANAGER_HXX