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

with lib;
with lib.metacfg;
let cfg = config.metacfg.system.fonts;
in
{
  options.metacfg.system.fonts = with types; {
    enable = mkBoolOpt false "Whether or not to manage fonts.";
    fonts = mkOpt (listOf package) [ ] "Custom font packages to install.";
  };

  config = mkIf cfg.enable {
    environment.variables = {
      # Enable icons in tooling since we have nerdfonts.
      LOG_ICONS = "true";
    };

    fonts = {
      fontDir = enabled;

      fonts = with pkgs;
        [
          noto-fonts
          noto-fonts-cjk-sans
          noto-fonts-cjk-serif
          noto-fonts-emoji
          (nerdfonts.override { fonts = [ "Hack" ]; })
        ] ++ cfg.fonts;
    };
  };
}