#!/usr/bin/env python3
import gi
import argparse

gi.require_version("Gtk", "3.0")
from gi.repository import Gtk, Gdk, Pango  # noqa: E402


parser = argparse.ArgumentParser()
parser.add_argument("message", type=str, nargs="+")
args = parser.parse_args()

message = " ".join(args.message)


window = Gtk.ApplicationWindow()
window.set_keep_above(True)
window.set_decorated(False)
window.set_default_size(800, 100)

scrolled_window = Gtk.ScrolledWindow()
label = Gtk.Label(label=message)
scrolled_window.add(label)
window.add(scrolled_window)


def on_key_release(target, event):
    key = event.keyval
    if key in [Gdk.KEY_Escape, Gdk.KEY_q, Gdk.KEY_Q]:
        window.close()


def on_configure(target, event):
    if target != window or event.type != Gdk.EventType.CONFIGURE:
        return
    font_desc = Pango.FontDescription()
    font_desc.set_size(Pango.SCALE * event.height * 2 / 3)
    label.override_font(font_desc)


window.connect("configure-event", on_configure)
window.connect("key-release-event", on_key_release)
window.show_all()
window.connect("destroy", Gtk.main_quit)
Gtk.main()