use prometheus_http_query::{Client, Error, Selector, RuleKind};

#[tokio::main(flavor = "current_thread")]
async fn main() -> Result<(), Error> {
    let client = Client::default();

    // Evaluate a PromQL query.
    let q = "topk by (code) (5, prometheus_http_requests_total)";
    let response = client.query(q).get().await?;
    assert!(response.data().as_vector().is_some());

    // Retrieve active alerts.
    let alerts = client.alerts().await;
    assert!(alerts.is_ok());

    // Retrieve recording rules.
    let recording_rules = client.rules().kind(RuleKind::Recording).get().await;
    assert!(recording_rules.is_ok());

    // Retrieve a list of time series that match certain labels sets ("series selectors").
    let select1 = Selector::new()
        .eq("handler", "/api/v1/query");

    let select2 = Selector::new()
        .eq("job", "node")
        .regex_eq("mode", ".+");

    let time_series = client.series(&[select1, select2]).get().await;
    assert!(time_series.is_ok());

    Ok(())
}