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

with lib;

let
  cfg = config.grub2;
in {
  options.grub2 = {
    enable = mkEnableOption "grub2 coreboot primary payload";

    font = mkOption {
      type = types.path;
      default = "${pkgs.unifont}/share/fonts/truetype/unifont.ttf";
    };
  };

  config = lib.mkIf cfg.enable {
    coreboot.extraFiles = {
      "fallback/payload" = {
        type = "payload";
        src = "${pkgs.coreboot-payload-grub2}/default_payload.elf";
      };
      "etc/grub.cfg".src = ./files/grub.cfg;
      "etc/background.png".src = ./files/background.png;
      "font.pf2" = {
        src = pkgs.runCommand "font.pf2" {
          buildInputs = with pkgs; [ grub2 ];
        } ''
          grub-mkfont -o $out ${cfg.font}
        '';
      };
    };
  };
}