self:

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

let
  cfg = config.services.rhemawave;
in
{
  options.services.rhemawave = {
    enable = lib.mkEnableOption "RhemaWave kiosk application";

    package = lib.mkOption {
      type = lib.types.package;
      default = self.packages.${pkgs.system}.default;
      description = "The RhemaWave package to use.";
    };

    # There should not be a "kioskUser" defined in the program
    # That should be defined by the system, so everything kioskUser related
    # has been commented out. 
    
    user = lib.mkOption {
      type = lib.types.str;
      default = "kiosk";
      description = "User account that runs the kiosk session.";
    };

    # extraGroups = lib.mkOption {
    #   type = lib.types.listOf lib.types.str;
    #   default = [];
    #   description = "Additional groups for the kiosk user.";
    # };

    autoVolume = lib.mkOption {
      type = lib.types.bool;
      default = true;
      description = "Set all PipeWire sinks to full volume before launching.";
    };
  };

  config = lib.mkIf cfg.enable {
    # # --- Kiosk user ---
    # users.users.${cfg.kioskUser} = {
    #   isNormalUser = true;
    #   group = cfg.kioskUser;
    #   extraGroups = [ "audio" "video" "input" "networkmanager" ] ++ cfg.extraGroups;
    # };
    # users.groups.${cfg.kioskUser} = {};

    # --- Display: agetty + cage ---
    

    # --- Environment ---
    environment.variables.SDL_VIDEODRIVER = "wayland";

    # --- Networking ---
    networking.networkmanager.enable = true;

    # --- Audio: PipeWire + WirePlumber ---
    services.pipewire = {
      enable = true;
      alsa.enable = true;
      pulse.enable = true;
      wireplumber.enable = true;
    };

    # --- Polkit rules ---
    security.polkit.extraConfig = ''
      polkit.addRule(function(action, subject) {
        // Allow restarting getty@tty1
        if (action.id == "org.freedesktop.systemd1.manage-units") {
          var unit = action.lookup("unit");
          if (unit == "getty@tty1.service") {
            return polkit.Result.YES;
          }
        }
      });
    '';

    # --- Make the package available system-wide ---
    environment.systemPackages = [ cfg.package ];
  };
}