{
  pkgs,
  config,
  lib,
  ...
}:
let
  cfg = config.xyno.desktop.wpaperd;
  wpaperdConf = pkgs.writeText "wpaperd.conf" ''
    [default]
    path = "/home/${config.xyno.system.user.name}/Pictures/backgrounds"
    duration = "10m"
    sorting = "random"
    mode = "center"
  '';
in
{
  options.xyno.desktop.wpaperd.enable = lib.mkEnableOption "enable wpaperd notification daemon";
  options.xyno.desktop.wpaperd.wantedBy = lib.mkOption {
    type = lib.types.str;
    default = "niri.service";
  };
  options.xyno.desktop.wpaperd.package = lib.mkOption {
    type = lib.types.package;
    default = pkgs.wpaperd;
  };
  config = lib.mkIf cfg.enable {
    environment.systemPackages = [ cfg.package ];
    systemd.user.services.wpaperd = {
      unitConfig.PartOf = "graphical-session.target";
      unitConfig.After = "graphical-session.target";
      unitConfig.Requisite = "graphical-session.target";
      serviceConfig.Restart = "on-failure";
      wantedBy = [ cfg.wantedBy ];
      script = "${cfg.package}/bin/wpaperd -c ${wpaperdConf}";
      restartTriggers = [wpaperdConf];
    };
  };
}