{ config, lib, ... }:
let
  cfg = config.my.i18n.locale;
in
{
  options.my.i18n.locale = {
    enable = lib.mkEnableOption "default locale settings" // {
      default = true;
    };
  };

  config = lib.mkIf cfg.enable {
    i18n = {
      defaultLocale = "en_US.UTF-8";
      extraLocaleSettings = {
        LC_ADDRESS = "zh_CN.UTF-8";
        LC_IDENTIFICATION = "zh_CN.UTF-8";
        LC_MEASUREMENT = "zh_CN.UTF-8";
        LC_MONETARY = "zh_CN.UTF-8";
        LC_NAME = "zh_CN.UTF-8";
        LC_NUMERIC = "zh_CN.UTF-8";
        LC_PAPER = "zh_CN.UTF-8";
        LC_TELEPHONE = "zh_CN.UTF-8";
        LC_TIME = "zh_CN.UTF-8";
      };
    };
  };
}