#include <imgui-SFML.h>
#include <imgui.h>

#include <SFML/Graphics/Color.hpp>
#include <SFML/Graphics/RectangleShape.hpp>
#include <SFML/Graphics/RenderWindow.hpp>
#include <SFML/System/Clock.hpp>
#include <SFML/System/Vector2.hpp>
#include <SFML/Window/Event.hpp>
#include <SFML/Window/VideoMode.hpp>
#include <optional>

#include "editor.hpp"
#include "level.hpp"
#include "nfd.hpp"
#include "package.hpp"
#include "tileset.hpp"

int main() {
  NFD::Guard nfdGuard;

  sf::RenderWindow window(sf::VideoMode({800, 600}), "sillyeditor");
  window.setFramerateLimit(60);
  ImGui::SFML::Init(window);

  silly::editor::LevelPackage package("test");
  silly::editor::Editor editor(package);

  sf::Clock deltaClock;
  while (window.isOpen()) {
    // zoom size
    float size = 16.0f;

    while (const std::optional<sf::Event> event = window.pollEvent()) {
      if (event.has_value()) {
        sf::Event e = event.value();
        ImGui::SFML::ProcessEvent(window, e);
        editor.update(e, window);
      }

      // (cv pasted from
      // https://www.sfml-dev.org/tutorials/3.0/graphics/view/#showing-more-when-the-window-is-resized)
      // catch the resize events
      if (const auto *resized = event->getIf<sf::Event::Resized>()) {
        // update the view to the new size of the window
        sf::FloatRect visibleArea({0.f, 0.f}, sf::Vector2f(resized->size));
        sf::View view(visibleArea);
        view.setCenter(window.getView().getCenter());
        view.zoom(editor.get_zoom());
        window.setView(view);
      }

      if (event->is<sf::Event::Closed>()) {
        window.close();
      }
    }

    editor.update(window);

    ImGui::SFML::Update(window, deltaClock.restart());

    window.clear();

    if (!package.get_levels().empty()) {
      silly::editor::TileLevel &level = package.get_current_level();
      silly::editor::TileFloor &floor = level.get_current_floor();
      floor.render(window);

      // rendering grid
      for (int x = 0; x < floor.get_width(); x++) {
        for (int y = 0; y < floor.get_height(); y++) {
          sf::RectangleShape shape({size, size});
          shape.setFillColor(sf::Color::Transparent);
          shape.setOutlineColor(sf::Color(80, 80, 80));
          shape.setOutlineThickness(1.0f);
          shape.setPosition({x * size, y * size});
          window.draw(shape);
        }
      }
    }

    editor.render(window);

    ImGui::SFML::Render(window);
    window.display();
  }

  return 0;
}