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

let
  # Resolve the default username
  username   = config.defaultUser or "henrov";
  moduleName = "stylix";

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

  # Read all files in the asset directory
  programFiles = builtins.readDir assetPath;

  files = lib.genAttrs (builtins.attrNames programFiles) (name: {
    source = "${assetPath}/${name}";
  });

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

  # Cursor defaults
  cursorName = "phinger-cursors-light";
  cursorSize = 24;

  # Merge all config files + optional stylix.conf into one home.file set
  homeFiles = lib.recursiveUpdate
    (lib.genAttrs (builtins.attrNames files) (name: {
      path = "${moduleName}/${name}";
      source = files.${name}.source;
    }))
    (if stylixConf != "" then {
      "${moduleName}/stylix.conf" = { text = stylixConf; };
    } else {});
in
{
  ############################
  # System packages
  ############################
  environment.systemPackages = [
    pkgs.feh
    pkgs.st
  ];

  ############################
  # Home Manager user settings
  ############################
  home-manager.users."${username}" = {
    # Enable Stylix
    stylix = {
      enable  = true;

      # GTK integration for this user
      targets = {
        gtk = { enable = true; };
      };
    };

    # Copy all config files into ~/.config/stylix/
    home.file = homeFiles;

    # Session environment variables
    home.sessionVariables = {
      STYLIX_CONF      = "$HOME/.config/stylix/stylix.conf";

      XCURSOR_THEME    = cursorName;
      XCURSOR_SIZE     = toString cursorSize;
      HYPRCURSOR_THEME = cursorName;
      HYPRCURSOR_SIZE  = toString cursorSize;
    };
  };
}