#pragma once

#include "GameScreen.h"
#include "SplashScreen.h"
#include "TitleScreen.h"
#include "FadeAnimation.h"
#include "Texture.h"
#include "FileManager.h"

#define ScreenWidth 1280
#define ScreenHeight 720

class ScreenManager
{
public:
    ~ScreenManager();
    static ScreenManager &GetInstance();

    void Initialize(SDL_Renderer *renderer);
    void LoadContent(SDL_Renderer *renderer);
    void UnloadContent();
    void Update(SDL_Renderer *renderer, SDL_Event &event);
    void Draw (SDL_Renderer *renderer);
    void SetScreen(GameScreen *newScreen);

    Texture GetSplashText(void) const { return SplashText; }
    Texture GetTitleText(void) const { return TitleText; }

    GameScreen* GetSplashScreen(void) const { return SplashScreen; }
    GameScreen* GetTitleScreen(void) const { return TitleScreen; }

    Uint8 GetAlpha();

private:

    GameScreen *SplashScreen;
    GameScreen *TitleScreen;
    //GameScreen *MainMenuScreen; <-- exaple state
    //GameScreen *GamePlayScreen; <-- exaple state
    GameScreen *currentScreen;

    Texture SplashText;
    Texture TitleText;

    FileManager file;
    std::vector<std::vector<std::string>> attributes;
    std::vector<std::vector<std::string>> contents;

    void Transition(SDL_Renderer *renderer);
    bool transition;

    FadeAnimation fade;

    ScreenManager();
    ScreenManager(ScreenManager const&);
    void operator = (ScreenManager const&);
};