dendritic/modules/nixos/login-text.nix

{ inputs, ... }: {
  flake.modules.nixos.login-text = { config, lib, ... }:
    let
      defaultServiceStatus = {
        SSH = "sshd.socket";
        "SSH Cert Renewal" = "step-ssh-host-renew.timer";
      };
    in {
    options.loginText.extraServiceStatus = lib.mkOption {
      type = lib.types.attrsOf lib.types.str;
      default = { };
      description = "Additional rust-motd service status entries keyed by display name.";
    };

    config = {
      programs.rust-motd = {
        enable = true;
        refreshInterval = "*:0/5";
        order = [
          "global"
          "last_login"
          "service_status"
          # "uptime"
          "memory"
          "filesystems"
        ];
        settings = {
          global = {
            time_format = "%Y-%m-%d %H:%M:%S %Z";
          };

          last_login = {
            john = 3;
            root = 3;
          };

          service_status = lib.mkMerge [
            defaultServiceStatus
            config.loginText.extraServiceStatus
          ];

          # This calculation is wrong for LXCs
          # uptime = {
          #   prefix = "Uptime";
          # };

          memory = {
            swap_pos = "beside";
          };

          filesystems = {
            root = "/";
          };
        };
      };
    };
  };
}