"""Load the two stylesheets as ordered CSS providers.

_colors.css (generated from ~/Dotfiles/colors.conf by apply-theme.sh) defines the
five CyberQueer @define-color names; style.css consumes them. They are loaded as
two separate providers rather than via @import, because GTK4 resolves @import
paths unreliably.
"""

from __future__ import annotations

import gi

gi.require_version("Gtk", "4.0")
from gi.repository import Gdk, Gtk  # noqa: E402

from paths import STYLE_DIR


def load_css() -> None:
    display = Gdk.Display.get_default()
    for name in ("_colors.css", "style.css"):
        path = STYLE_DIR / name
        if not path.exists():
            continue
        provider = Gtk.CssProvider()
        provider.load_from_path(str(path))
        Gtk.StyleContext.add_provider_for_display(
            display, provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
        )