#include <stdlib.h>
#include <iostream>
#include <SFML/Window.hpp>

// ============================================================================

bool gameActive = true;
sf::Mutex mutexWindow;

// ============================================================================

class GameThread: public sf::Thread
{
public:

    GameThread(sf::Window& window)
        :window(window)
    {
    }

    virtual ~GameThread() {}

private:

    sf::Window& window;

    virtual void Run()
    {
        const sf::Input& input = window.GetInput();
        sf::Clock clock;
        while (gameActive) {

            float elapsedTime = clock.GetElapsedTime();
            if (elapsedTime < .01f) {
                sf::Sleep(.01f - elapsedTime);
            }
            elapsedTime = clock.GetElapsedTime();
            clock.Reset();


        }
    }
};

// ============================================================================

class RenderThread: public sf::Thread
{
public:

    RenderThread(sf::Window& window)
        :window(window)
    {
    }

    virtual ~RenderThread() {}

private:

    sf::Window& window;

    virtual void Run()
    {
        while (gameActive) {
//          sf::Lock lock(mutexWindow);
            window.SetActive(true);
            glClear(GL_COLOR_BUFFER_BIT);
            window.Display();
//          window.SetActive(false);
        }
    }
};

// ============================================================================

int main(int argc, char **argv)
{

    sf::Window window(sf::VideoMode(1024, 768, 32), "Gaya", sf::Style::Close);
    window.SetActive(false);
    window.UseVerticalSync(true);

    bool mouseCaptured = false;
    int windowWidthHalf = window.GetWidth() >> 1;
    int windowHeightHalf = window.GetHeight() >> 1;

//  GameThread gameThread(window);
//  gameThread.Launch();
    RenderThread renderThread(window);
    renderThread.Launch();

    sf::Clock clock;
    sf::Event event;
    while (gameActive) {

        float elapsedTime = clock.GetElapsedTime();
        if (elapsedTime < .01f) {
            sf::Sleep(.01f - elapsedTime);
        }
        elapsedTime = clock.GetElapsedTime();
        clock.Reset();

        {
//          sf::Lock lock(mutexWindow);
//          window.SetActive(true);

            while (window.GetEvent(event)) {
                if (event.Type == sf::Event::Closed) {
                    gameActive = false;
                }
//              if (mouseCaptured) {
//                  if (event.Type == sf::Event::KeyPressed && event.Key.Code == sf::Key::Escape) {
//                      window.ShowMouseCursor(true);
//                      mouseCaptured = false;
//                  }
//              } else {
//                  if (event.Type == sf::Event::MouseButtonPressed && event.MouseButton.Button == 0) {
//                      window.ShowMouseCursor(false);
//                      mouseCaptured = true;
//                  }
//              }
            }

//          if (mouseCaptured) {
//              window.SetCursorPosition(windowWidthHalf, windowHeightHalf);
//          }

//          window.SetActive(false);
        }
    }

//  gameThread.Wait();
    renderThread.Wait();
    window.Close();

    return EXIT_SUCCESS;
}