import {
  Adw,
  Gtk,
  Gtk_,
  kw,
  NamedArgument,
  python,
} from "https://raw.githubusercontent.com/sigmaSd/deno-gtk-py/13f3da6c4890d62e09312747c905fa85263f5ca8/mod.ts";

class MainWindow extends Gtk.ApplicationWindow {
  #slider: Gtk_.Scale;
  constructor(kwArg: NamedArgument) {
    super(kwArg);
    this.set_default_size(600, 250);
    this.#slider = Gtk.Scale();
    this.#slider.set_range(0, 10);
    this.#slider.connect("value-changed", this.slider_changed);

    this.set_child(this.#slider);
  }

  slider_changed = python.callback(
    (_kwargs, slider: Gtk_.Scale): undefined => {
      slider.get_value(); // this line trigger the error/segfault
    },
  );
}

class App extends Adw.Application {
  #win: MainWindow | undefined;
  constructor(kwArg: NamedArgument) {
    super(kwArg);
    this.connect("activate", this.onActivate);
  }
  onActivate = python.callback((_kwarg, app: Gtk_.Application): undefined => {
    this.#win = new MainWindow(new NamedArgument("application", app));
    this.#win.present();
  });
}

const app = new App(kw`application_id=${"com.example.com"}`);
app.run(Deno.args);