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//! This crate provides opentelemetry metrics conforming to
//! [semantic conventions for http](https://opentelemetry.io/docs/reference/specification/metrics/semantic_conventions/http-metrics/).
#![forbid(unsafe_code)]
#![deny(
    missing_copy_implementations,
    rustdoc::missing_crate_level_docs,
    missing_debug_implementations,
    nonstandard_style,
    unused_qualifications,
    missing_docs
)]
pub use opentelemetry;

#[cfg(all(feature = "trace", feature = "metrics"))]
mod instrument;
#[cfg(feature = "metrics")]
mod metrics;
#[cfg(feature = "trace")]
mod trace;

#[cfg(feature = "trace")]
mod instrument_handler;

#[cfg(all(feature = "trace", feature = "metrics"))]
pub use instrument::{instrument, Instrument};
#[cfg(feature = "trace")]
pub use instrument_handler::{instrument_handler, InstrumentHandler};
#[cfg(feature = "metrics")]
pub use metrics::{metrics, Metrics};
#[cfg(feature = "trace")]
pub use trace::{trace, Trace};

/// instrumentation using [`opentelemetry::global`]
pub mod global {

    #[cfg(all(feature = "trace", feature = "metrics"))]
    pub use super::instrument::instrument_global as instrument;

    #[cfg(feature = "trace")]
    pub use super::instrument_handler::instrument_handler_global as instrument_handler;

    #[cfg(feature = "trace")]
    ///configure a [`Trace`](crate::trace::Trace) against the global tracer provider
    pub fn trace() -> super::Trace<opentelemetry::global::BoxedTracer> {
        super::Trace::new(opentelemetry::global::tracer("trillium-opentelemetry"))
    }

    #[cfg(feature = "metrics")]
    /// configure a [`Metrics`](crate::metrics::Metrics) against the global meter provider
    pub fn metrics() -> super::Metrics {
        use opentelemetry::metrics::MeterProvider;

        opentelemetry::global::meter_provider()
            .versioned_meter(
                "trillium-opentelemetry",
                Some(env!("CARGO_PKG_VERSION")),
                Some("https://opentelemetry.io/schemas/1.22.0"),
                None,
            )
            .into()
    }
}