{ options
, config
, lib
, pkgs
, ...
}:
with lib;
with lib.metacfg;
let
  cfg = config.metacfg.base;
  gitconfig = pkgs.writeText "gitconfig" ''
    [filter "rot8000"]
        smudge = ${pkgs.metacfg.rot8000}/bin/rot8000
        clean = ${pkgs.metacfg.rot8000}/bin/rot8000
  '';
in
{
  options.metacfg.base = with types; {
    enable = mkBoolOpt false "Whether or not to enable the base config.";

  };

  config = mkIf cfg.enable {
    # Configure console keymap
    console.keyMap = lib.mkDefault "us";

    # Select internationalisation properties.
    i18n.defaultLocale = "en_US.UTF-8";
    i18n.extraLocaleSettings = {
      LC_ADDRESS = "de_DE.UTF-8";
      LC_IDENTIFICATION = "de_DE.UTF-8";
      LC_MEASUREMENT = "de_DE.UTF-8";
      LC_MESSAGES = "en_US.UTF-8";
      LC_MONETARY = "de_DE.UTF-8";
      LC_NAME = "de_DE.UTF-8";
      LC_NUMERIC = "de_DE.UTF-8";
      LC_TELEPHONE = "de_DE.UTF-8";
      LC_TIME = "de_DE.UTF-8";
    };

    environment = {
      sessionVariables = { PATH = "$HOME/bin"; };
      systemPackages = with pkgs; [
        age
        bash
        cifs-utils
        clevis
        delta
        efibootmgr
        git
        git-crypt
        git-delete-merged-branches
        home-manager
        htop
        mosh
        nixpkgs-fmt
        openssl
        restic
        rrsync
        sbctl
        sops
        strace
        tmux
        tpm2-pkcs11
        tpm2-pkcs11.out
        tpm2-tools
        vim
        virt-manager
        wget
      ];
      shells = [ pkgs.fish pkgs.bash ];
    };

    hardware = {
      cpu = {
        amd.updateMicrocode = lib.mkDefault true;
        intel.updateMicrocode = lib.mkDefault true;
      };
      enableRedistributableFirmware = lib.mkDefault true;
      enableAllFirmware = true;
      opengl.extraPackages = with pkgs; [ intel-compute-runtime ];
    };

    programs = {
      dconf.enable = true;
      bash = {
        ## shellInit = ''
        interactiveShellInit = ''
          bind '"\e[A": history-search-backward'
          bind '"\e[B": history-search-forward'
        '';
      };
      starship.enable = true;
      mosh.enable = true;
      vim.defaultEditor = true;
      fish.enable = true;
    };

    # powerManagement.cpuFreqGovernor = "ondemand";

    services = {
      dbus.implementation = "broker";
      dbus.packages = [ pkgs.gcr ];
      fwupd.enable = true;
      openssh = {
        enable = true;
        settings.PermitRootLogin = "prohibit-password";
        settings.X11Forwarding = true;
      };
    };

    security = {
      tpm2.enable = lib.mkDefault true;
      tpm2.abrmd.enable = lib.mkDefault true;
      sudo = {
        enable = true;
        wheelNeedsPassword = lib.mkDefault true;
      };
    };

    time.timeZone = "Europe/Berlin";

    users.users.root.openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMNsmP15vH8BVKo7bdvIiiEjiQboPGcRPqJK0+bH4jKD harald@lenovo.fritz.box"
      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBACLgT81iB1iWWVuXq6PdQ5GAAGhaZhSKnveQCvcNnAOZ5WKH80bZShKHyAYzrzbp8IGwLWJcZQ7TqRK+qZdfagAAAAEc3NoOg== harald@hoyer.xyz"
      "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIDsb/Tr69YN5MQLweWPuJaRGm+h2kOyxfD6sqKEDTIwoAAAABHNzaDo= harald@fedora.fritz.box"
    ];

    boot = {
      tmp.cleanOnBoot = true;
      loader = {
        systemd-boot.enable = lib.mkDefault true;
        efi.canTouchEfiVariables = true;
        timeout = 2;
      };
      initrd.systemd.enable = true;
    };

    system.autoUpgrade = {
      flags = [
        "--update-input"
        "nixpkgs"
        "--update-input"
        "unstable"
        "--update-input"
        "nixsgx-flake"
        "--update-input"
        "home-manager"
        "--no-write-lock-file"
        "-L"
      ];
      flake = lib.mkDefault "git+https://git.hoyer.xyz/harald/nixcfg";
    };
    systemd.services.nixos-upgrade = {
      path = [ pkgs.metacfg.rot8000 ];
      environment.GIT_CONFIG_GLOBAL = toString gitconfig;
    };

    programs.git.enable = true;

    virtualisation.libvirtd.enable = true;

    boot.tmp.useTmpfs = true;
    systemd.services.nix-daemon.environment.TMPDIR = "/var/tmp";

    services.fstrim.enable = true;
  };
}