stateless-uptime-kuma/nixos/module.nix

{
  config,
  lib,
  pkgs,
  ...
}:
let
  probesFormat = pkgs.formats.json { };
  cfg = config.statelessUptimeKuma;
in
{
  options.statelessUptimeKuma = {
    build = {
      json = lib.mkOption { type = lib.types.package; };
      script = lib.mkOption { type = lib.types.package; };
    };
    host = lib.mkOption {
      default = null;
      type = with lib.types; nullOr str;
    };
    extraFlags = lib.mkOption {
      default = [ ];
      example = [ "--scrape-http-keywords" ];
      type = with lib.types; listOf str;
      description = lib.mdDoc ''
        Extra arguments to use for executing `stateless-uptime-kuma`.
      '';
    };
    lib = lib.mkOption { type = lib.types.raw; };
    probesConfig = {
      monitors = lib.mkOption {
        type = with lib.types; attrsOf probesFormat.type;
        default = { };
      };
      tags = lib.mkOption {
        type = with lib.types; attrsOf probesFormat.type;
        default = { };
      };
      notifications = lib.mkOption {
        type = with lib.types; attrsOf probesFormat.type;
        default = { };
      };
    };
  };
  config.statelessUptimeKuma = {
    lib = import ../lib { inherit lib; };
    extraFlags = lib.optional (cfg.host != null) "--host ${cfg.host}";
    build = {
      json = probesFormat.generate "probes.json" cfg.probesConfig;
      script = pkgs.writeShellApplication {
        name = "deploy-uptime-kuma-probes";
        runtimeInputs = [ pkgs.statelessUptimeKuma ];
        text = ''
          args=("$@")
          stateless-uptime-kuma apply-json -f ${cfg.build.json} ${builtins.concatStringsSep " " cfg.extraFlags} "''${args[@]}"
        '';
      };
    };
  };
}