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

let
  username   = config.defaultUser or "henrov";
  moduleName = "stylix";

  # Path to stylix assets
  assetPath = "${flakeRoot}/assets/system/conf/${moduleName}";

  # Read all files in the asset directory
  assetFiles = builtins.attrNames (builtins.readDir assetPath);

  # Convert files to Home Manager xdg config entries
  stylixFiles = lib.genAttrs assetFiles (f: {
    name = ".config/${moduleName}/${f}";
    value = { source = "${assetPath}/${f}"; };
  });

  # Optional stylix.conf contents
  stylixConfFile = "${assetPath}/stylix.conf";
  stylixConf =
    if builtins.pathExists stylixConfFile
    then builtins.readFile stylixConfFile
    else "";

  # Cursor defaults
  cursorName = "phinger-cursors-light";
  cursorSize = 24;
in
{
  ############################
  # System packages
  ############################
  environment.systemPackages = [
    pkgs.feh
    pkgs.st
  ];

  ############################
  # Home Manager user-level configuration
  ############################
  # Follow the hyprland pattern to avoid "option does not exist"
  _module.args.hmUsers = {
    "${username}" = {
      # Merge all Stylix asset files into ~/.config/stylix/
      home.file = lib.mkMerge stylixFiles;

      # Include stylix.conf if it exists
      home.file."${moduleName}/stylix.conf".text = stylixConf;

      # Session variables for Stylix & cursors
      home.sessionVariables = {
        STYLIX_CONF      = "$HOME/.config/stylix/stylix.conf";
        XCURSOR_THEME    = cursorName;
        XCURSOR_SIZE     = toString cursorSize;
        HYPRCURSOR_THEME = cursorName;
        HYPRCURSOR_SIZE  = toString cursorSize;
      };
    };
  };
}