{ config, pkgs, ... }:

let
  confettiListener = pkgs.writeShellScript "confetti-listener" ''
    #!/usr/bin/env bash
    set -euo pipefail
    exec dbus-monitor "interface='org.freedesktop.Notifications'" | \
    while read -r line; do
      if echo "$line" | grep -q "confetti"; then
        confetti
      fi
    done
  '';
in {
  systemd.user.services.confetti-listener = {
    description = "Listen for notifications and trigger confetti";
    after = [ "graphical-session.target" ];
    partOf = [ "graphical-session.target" ];
    wantedBy = [ "graphical-session.target" ];
    path = with pkgs; [ dbus gnugrep coreutils ];
    serviceConfig = {
      ExecStart = "${confettiListener}";
      Restart = "always";
      RestartSec = "1s";
    };
  };
}