{
  config,
  pkgs,
  lib,
  ...
}:
let
  textfileDir = "/var/lib/prometheus-node-exporter-textfiles";

  intelGpuCollector = pkgs.writeShellApplication {
    name = "intel-gpu-collector";
    runtimeInputs = with pkgs; [
      python3
      intel-gpu-tools
    ];
    text = ''
      exec python3 ${./intel-gpu-collector.py}
    '';
  };
in
lib.mkIf config.services.grafana.enable {
  systemd.services.intel-gpu-collector = {
    description = "Collect Intel GPU metrics for Prometheus";
    serviceConfig = {
      Type = "oneshot";
      ExecStart = lib.getExe intelGpuCollector;
    };
    environment.TEXTFILE = "${textfileDir}/intel-gpu.prom";
  };

  systemd.timers.intel-gpu-collector = {
    wantedBy = [ "timers.target" ];
    timerConfig = {
      OnCalendar = "*:*:0/30";
      RandomizedDelaySec = "10s";
    };
  };
}