import os
import subprocess
import sys
import gi

if 'QRCODE_TESTER_SELF_RUN' not in os.environ:
    ARCH_TRIPLET = subprocess.check_output(
        ["dpkg-architecture", "-qDEB_HOST_MULTIARCH"]).decode().strip()

    os.environ['GI_TYPELIB_PATH'] = ':'.join([
        f'/usr/lib/{ARCH_TRIPLET}/gnome-shell',
        f'/usr/lib/gnome-shell',
        f'/usr/lib/{ARCH_TRIPLET}/mutter-14',
        f'/usr/lib/{ARCH_TRIPLET}/girepository-1.0',
        os.getenv('GI_TYPELIB_PATH', ''),
    ])
    os.environ['LD_LIBRARY_PATH'] = ':'.join([
        f'/usr/lib/{ARCH_TRIPLET}/gnome-shell',
        f'/usr/lib/gnome-shell',
        f'/usr/lib/{ARCH_TRIPLET}/mutter-14',
        f'/usr/lib/{ARCH_TRIPLET}/girepository-1.0',
        os.getenv('LD_LIBRARY_PATH', ''),
    ])

    os.environ['QRCODE_TESTER_SELF_RUN'] = "1"
    os.execv(sys.executable, [sys.executable] + sys.argv)

gi.require_version('Shell', '14')
gi.require_version('Meta', '14')
gi.require_version('Gtk', '4.0')

from gi.repository import Gtk, Shell, Meta

os.environ["XDG_RUNTIME_DIR"] = "/tmp/mutter-tester"

SIZE = 350

image = Gtk.Image.new()

def on_activate(app):
    win = Gtk.ApplicationWindow(application=app)
    win.set_default_size(SIZE, SIZE)
    image.set_from_icon_name('start-here')
    win.set_child(image)
    win.present()

def on_generate_cb(generator, res):
    icon = generator.generate_qr_code_finish(res)
    print("finished", icon)
    image.set_from_gicon(icon)
    image.set_pixel_size(SIZE)

app = Gtk.Application()
app.connect('activate', on_activate)

ctx = Meta.create_context("tester")
ctx.set_plugin_name("libdefault")
ctx.configure([sys.argv[0], "--wayland", "--headless"])
ctx.setup()
qrcode_generator = Shell.QrCodeGenerator.new()
qrcode_generator.generate_qr_code(url="https://bugs.launchpad.net/ubuntu/+source/gnome-shell",
                                  width=SIZE, height=SIZE,
                                  callback=on_generate_cb)

app.run(None)