{ lib }:
let
  # Default MAC address to station number mapping
  defaultHostmap = {
    "00:e0:4c:46:0b:32" = "1";
    "00:e0:4c:46:07:26" = "2";
    "00:e0:4c:46:05:94" = "3";
    "00:e0:4c:46:07:11" = "4";
    "00:e0:4c:46:08:02" = "5";
    "00:e0:4c:46:08:5c" = "6";
  };

  # macCaseBuilder: builds a shell case statement from a hostmap
  # Parameters:
  #   varName: the shell variable to assign
  #   prefix: optional string to prepend to the value (default: "")
  #   hostmap: optional attribute set to use (default: built-in hostmap)
  #
  # Example:
  #   macCaseBuilder { varName = "STATION"; prefix = "nix-"; }
  #   # Generates case statements like: 00:e0:4c:46:0b:32) STATION=nix-1 ;;
  builder =
    {
      varName,
      prefix ? "",
      hostmap ? defaultHostmap,
    }:
    lib.concatStringsSep "\n" (
      lib.mapAttrsToList (mac: val: "      ${mac}) ${varName}=${prefix}${val} ;;") hostmap
    );
in
# Export the builder function with hostmap as an accessible attribute
lib.setFunctionArgs builder { } // { hostmap = defaultHostmap; }