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

let
  username = config.defaultUser or "henrov";
in
{
  environment.systemPackages = with pkgs; [
    gtk3
    gtk4
  ];

  # Stylix GTK target
  stylix.targets.gtk.enable = true;

  home-manager.users."${username}" = {
    gtk = {
      enable = true;

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

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

      gtk3.extraConfig = {
        "gtk-application-prefer-dark-theme" = 1;
      };
      gtk4.extraConfig = {
        "gtk-application-prefer-dark-theme" = 1;
      };
    };

    # Ensure GTK apps launched from Hyprland / terminal use dark theme
    home.sessionVariables = {
      GTK_THEME = "Catppuccin-Mocha-Standard-Blue-Dark";
      XDG_DATA_DIRS = "${pkgs.papirus-icon-theme}/share:$XDG_DATA_DIRS";
    };
  };
}