{ config, pkgs, lib, ... }:

let
  relabelConfigs = [
    {
      source_labels = [ "__address__" ];
      target_label = "instance";
      replacement = "nas";
      action = "replace";
      regex = "192.168.6.10:(.*)";
    }
    {
      source_labels = [ "__address__" ];
      target_label = "instance";
      replacement = "rtr";
      action = "replace";
      regex = "192.168.6.1:(.*)";
    }
    {
      source_labels = [ "__address__" ];
      target_label = "instance";
      replacement = "tahoe";
      action = "replace";
      regex = "192.168.6.20:(.*)";
    }
  ];
in {
  services.prometheus = {
    enable = true;

    globalConfig.scrape_interval = "15s";

    extraFlags = [
      # 3 years of retention
      "--storage.tsdb.retention=${toString (365 * 3)}d"
      "--web.enable-admin-api"
    ];

    scrapeConfigs = [
      {
        job_name = "node";
        static_configs = [{
          targets =
            [ "192.168.6.1:9100" "192.168.6.10:9100" "192.168.6.20:9100" ];
        }];
        relabel_configs = relabelConfigs;
      }
      {
        job_name = "unifi-poller";
        static_configs = [{ targets = [ "192.168.6.20:9130" ]; }];
        relabel_configs = relabelConfigs;
      }
    ];
  };
}