nixos-config/nixos/machines/chungus/telemetry/opentelemetry-hass.nix

{ config, ... }:
{

  #{
  #  name = "home-assistant";
  #  rules = [
  #    {
  #      record = "home_open_window_sum";
  #      expr = ''sum( homeassistant_binary_sensor_state{entity=~"binary_sensor\\.window_02_contact|binary_sensor\\.window_03_contact|binary_sensor\\.window_04_contact|binary_sensor\\.window_05_contact|binary_sensor\\.window_06_contact|binary_sensor\\.window_07_contact"} )'';
  #    }
  #  ] ++ (map
  #    (number:
  #      {
  #        record = "home_at_least_n_windows_open";
  #        expr = ''home_open_window_sum >= bool ${toString number}'';
  #        labels.n = number;
  #      }) [ 1 2 3 ]);
  #};

  sops.secrets.hass_long_term_token.owner = "prometheus";

  services.opentelemetry-collector.settings = {
    service.pipelines.metrics.receivers = [ "prometheus" ];
    receivers.prometheus.config.scrape_configs = [
      {
        # see https://www.home-assistant.io/integrations/prometheus/
        job_name = "home-assistant";
        scrape_interval = "60s";
        metrics_path = "/api/prometheus";
        bearer_token_file = toString config.sops.secrets.hass_long_term_token.path;
        static_configs = [{
          targets = [ "127.0.0.1:8123" ];
        }];
      }
    ];

  };
}