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{ config, lib, pkgs, ... }:
let
  cfg = config.orbekk.yubikey;

  yubikey-pkgs = with pkgs; [
    ccid
    libu2f-host
    libusb
    rng_tools
    yubikey-manager
    yubikey-personalization
    gnupg
    pinentry
  ];
in
{
  options = {
    orbekk.yubikey = {
      enable = lib.mkEnableOption "Enable yubikey config";
    };
  };

  config = lib.mkIf cfg.enable {
    services.pcscd.enable = true;
    services.udev.packages = with pkgs; [
      libu2f-host
      yubikey-personalization
    ];

    programs.gnupg.agent = {
      enable = true;
      enableSSHSupport = true;
    };
    # Use GPG agent instead.
    programs.ssh.startAgent = lib.mkDefault false;

    environment = {
      systemPackages = yubikey-pkgs;
    };

    security.sudo.extraRules = [
      {
        groups = [ "wheel" ];
        commands = [ { command = "${pkgs.systemd}/bin/systemctl restart pcscd"; options = [ "NOPASSWD" ]; } ];
      }
    ];

    systemd.user.services.restart-pcscd = {
      description = "Restart pcscd on startup";
      wantedBy = [ "graphical-session.target" ];
      partOf = [ "graphical-session.target" ];
      serviceConfig = {
        ExecStart = ''
        sudo systemctl restart pcscd
      '';
        Type = "oneshot";
      };
    };
  };
}