{ config, pkgs, ... }:

let
  waylandSessions = "${config.services.displayManager.sessionData.desktops}/share/wayland-sessions";
  x11Sessions = "${config.services.displayManager.sessionData.desktops}/share/xsessions";
  moduleName = "hm-greeter";
in
{

  users.users.greeter = {
  isSystemUser = true;
  group = "greeter";
  };
  users.groups.greeter = {};


  services.greetd = {
    enable = true;

    settings = {
      terminal.vt = 1;

      default_session = {
        # Run Hyprland as the greeter compositor
        command = "${pkgs.dbus}/bin/dbus-run-session ${pkgs.hyprland}/bin/start-hyprland -- --config /etc/greetd/greeter.conf";
        user = "greeter";
      };
    };
  };

  # Install the greeter Hyprland config file
  environment.etc."greetd/greeter.conf".source = ./conf/greeter.conf;

  # Give qtgreet access to session files on NixOS
  environment.etc."greetd/qtgreet-session-paths".text = ''
    WAYLAND_SESSIONS=${waylandSessions}
    X11_SESSIONS=${x11Sessions}
  '';

  # Needed for Wayland logins in many setups
  services.seatd.enable = true;

  environment.systemPackages = with pkgs; [
    qtgreet
    qt6Packages.qt6ct
    kdePackages.breeze
    kdePackages.breeze-icons
  ];
  home.file.".nixlog/loaded.${moduleName}-module-loaded".text = "loaded\n";
}