package mercure

import (

"context"

"go.opentelemetry.io/otel/codes"

"go.opentelemetry.io/otel/trace"

)

const tracerName = "github.com/dunglas/mercure"

// startSpan starts a span using the TracerProvider attached to the active span

// in ctx. When no tracer is active (e.g. Caddy's `tracing` directive is not

// enabled), this falls back to the OpenTelemetry no-op tracer: no exporters,

// no globals touched.

func startSpan(ctx context.Context, name string, opts ...trace.SpanStartOption) (context.Context, trace.Span) {

tracer := trace.SpanFromContext(ctx).TracerProvider().Tracer(tracerName)

return tracer.Start(ctx, name, opts...)

}

// recordSpanError marks the span as errored.

func recordSpanError(span trace.Span, err error) {

span.RecordError(err)

span.SetStatus(codes.Error, err.Error())

}