#include <iostream>
#include <SFML/System.hpp>
#include <SFML/Window.hpp>
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/Text.hpp>

int main() {
  bool isFullscreen = false;
  int screenWidth = sf::VideoMode::getDesktopMode().width;
  int screenHeight = sf::VideoMode::getDesktopMode().height;

  sf::Font font;
  std::string fontPath = "/usr/share/fonts/truetype/ubuntu/Ubuntu-R.ttf";
  if (!font.loadFromFile(fontPath)) {
    std::cout << "Error loading font: " << fontPath << std::endl;
    exit(EXIT_FAILURE);
  }

  sf::Text text;
  text.setFont(font);
  text.setCharacterSize(24);
  text.setFillColor(sf::Color::White);
  text.setString("Press F keyboard button to toggle fullscreen mode");

  sf::RenderWindow window;
  window.create(sf::VideoMode(640, 480), "Fullscreen example");

  while (window.isOpen()) {
    sf::Event event;

    while (window.pollEvent(event)) {
      if (event.type == sf::Event::Closed)
        window.close();

      if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape))
        window.close();

      if (sf::Keyboard::isKeyPressed(sf::Keyboard::F)) {
        isFullscreen = !isFullscreen;

        window.close();

        if (isFullscreen)
          window.create(sf::VideoMode(screenWidth, screenHeight),
                        "Fullscreen example", sf::Style::Fullscreen);
        else
          window.create(sf::VideoMode(640, 480), "Fullscreen example",
                        sf::Style::Default);
      }
    }

    window.clear(sf::Color::Black);
    window.draw(text);
    window.display();
  }

  return EXIT_SUCCESS;
}