import ../make-test-python.nix (
  { lib, pkgs, ... }:

  {
    name = "prometheus-pushgateway";

    nodes = {
      prometheus =
        { config, pkgs, ... }:
        {
          environment.systemPackages = [ pkgs.jq ];

          networking.firewall.allowedTCPPorts = [ config.services.prometheus.port ];

          services.prometheus = {
            enable = true;
            globalConfig.scrape_interval = "2s";

            scrapeConfigs = [
              {
                job_name = "pushgateway";
                static_configs = [
                  {
                    targets = [
                      "pushgateway:9091"
                    ];
                  }
                ];
              }
            ];
          };
        };

      pushgateway =
        { config, pkgs, ... }:
        {
          networking.firewall.allowedTCPPorts = [ 9091 ];

          services.prometheus.pushgateway = {
            enable = true;
          };
        };

      client =
        { config, pkgs, ... }:
        {
        };
    };

    testScript = ''
      pushgateway.wait_for_unit("pushgateway")
      pushgateway.wait_for_open_port(9091)
      pushgateway.wait_until_succeeds("curl -s http://127.0.0.1:9091/-/ready")
      pushgateway.wait_until_succeeds("journalctl -o cat -u pushgateway.service | grep 'version=${pkgs.prometheus-pushgateway.version}'")

      prometheus.wait_for_unit("prometheus")
      prometheus.wait_for_open_port(9090)

      prometheus.wait_until_succeeds(
        "curl -sf 'http://127.0.0.1:9090/api/v1/query?query=count(up\{job=\"pushgateway\"\})' | "
        + "jq '.data.result[0].value[1]' | grep '\"1\"'"
      )

      prometheus.wait_until_succeeds(
        "curl -sf 'http://127.0.0.1:9090/api/v1/query?query=sum(pushgateway_build_info)%20by%20(version)' | "
        + "jq '.data.result[0].metric.version' | grep '\"${pkgs.prometheus-pushgateway.version}\"'"
      )

      client.wait_for_unit("network-online.target")

      # Add a metric and check in Prometheus
      client.wait_until_succeeds(
        "echo 'some_metric 3.14' | curl --data-binary @- http://pushgateway:9091/metrics/job/some_job"
      )

      prometheus.wait_until_succeeds(
        "curl -sf 'http://127.0.0.1:9090/api/v1/query?query=some_metric' | "
        + "jq '.data.result[0].value[1]' | grep '\"3.14\"'"
      )

      prometheus.wait_until_succeeds(
        "curl -sf 'http://127.0.0.1:9090/api/v1/query?query=absent(some_metric)' | "
        + "jq '.data.result[0].value[1]' | grep 'null'"
      )

      # Delete the metric, check not in Prometheus
      client.wait_until_succeeds(
        "curl -X DELETE http://pushgateway:9091/metrics/job/some_job"
      )

      prometheus.wait_until_fails(
        "curl -sf 'http://127.0.0.1:9090/api/v1/query?query=some_metric' | "
        + "jq '.data.result[0].value[1]' | grep '\"3.14\"'"
      )

      prometheus.wait_until_succeeds(
        "curl -sf 'http://127.0.0.1:9090/api/v1/query?query=absent(some_metric)' | "
        + "jq '.data.result[0].value[1]' | grep '\"1\"'"
      )

      pushgateway.log(pushgateway.succeed("systemd-analyze security pushgateway.service | grep -v '✓'"))
    '';
  }
)