# TODO: submit Christian's storagebox exporter to nixpkgs
{ config, lib, pkgs, sources, ... }:

let
  storageboxExporter = pkgs.callPackage ./pkgs/prometheus-storagebox-exporter.nix { inherit sources; };
  cfg = config.services.prometheus-storagebox-exporter;
in
{
  options.services.prometheus-storagebox-exporter = {
    enable = lib.mkEnableOption "storagebox-exporter";
    port = lib.mkOption {
      type = lib.types.int;
    };
    hetznerTokenFile = lib.mkOption {
      type = lib.types.path;
    };
  };

  config = lib.mkIf cfg.enable {
    systemd.services.storagebox-exporter = {
      serviceConfig = {
        ExecStart = "${storageboxExporter}/bin/prometheus-storagebox-exporter";
        DynamicUser = "true";
        LoadCredential = "hetznerToken:${cfg.hetznerTokenFile}";
      };
      environment = {
        HETZNER_TOKEN_FILE = "%d/hetznerToken";
        LISTEN_ADDRESS = ":${toString cfg.port}";
      };
      wantedBy = ["multi-user.target"];
    };
  };
}