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

let
  inherit (lib) mkOption types;
  inherit (pkgs.stdenv) isDarwin;
  cfg = config.${optionName}.primaryUser;
in

{
  options.${optionName}.primaryUser = {
    username = mkOption { type = types.str; };
    fullName = mkOption { type = types.str; };
    email = mkOption { type = types.str; };
    homeDirectory = mkOption {
      type = types.str;
      default =
        let prefix = if isDarwin then "/Users" else "/home";
        in "${prefix}/${cfg.username}";
    };
    nixConfigDirectory = mkOption {
      type = types.str;
      default = "${cfg.homeDirectory}/dotfiles.nix";
    };
  };
}