{ pkgs, config, lib, ... }:

let
  # Resolve the username from the host config
  username = config.defaultUser or "henrov";
in
{
  ############################
  # System-level GTK packages
  ############################
  environment.systemPackages = with pkgs; [
    gtk3
    gtk4
  ];

  ############################
  # Home Manager user-level GTK configuration
  ############################
  # Directly assign the GTK config to the user, no recursiveUpdate
  home-manager.users."${username}" = {
    gtk = {
      enable = true;

      # GTK theme
      theme = {
        name    = "Catppuccin-Mocha-Standard-Blue-Dark";
        package = pkgs.magnetic-catppuccin-gtk;
      };

      # Icon theme
      iconTheme = {
        name    = "Papirus-Dark";
        package = pkgs.papirus-icon-theme;
      };

      # Extra GTK3 / GTK4 settings
      gtk3.extraConfig = {
        "gtk-application-prefer-dark-theme" = 1;
      };
      gtk4.extraConfig = {
        "gtk-application-prefer-dark-theme" = 1;
      };
    };
  };
}