package server

import (
	"fmt"
	"net/http"

	"github.com/getsentry/sentry-go"
)

func SentryTracingMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		ctx := r.Context()
		hub := sentry.GetHubFromContext(ctx)
		if hub == nil {
			hub = sentry.CurrentHub().Clone()
			ctx = sentry.SetHubOnContext(ctx, hub)
			r = r.WithContext(ctx)
		}

		options := []sentry.SpanOption{
			sentry.WithOpName("http.server"),
			sentry.ContinueFromRequest(r),
			sentry.WithTransactionSource(sentry.SourceURL),
		}

		transaction := sentry.StartTransaction(
			ctx,
			fmt.Sprintf("%s %s", r.Method, r.URL.Path),
			options...,
		)
		defer transaction.Finish()

		next.ServeHTTP(w, r.WithContext(transaction.Context()))
	})
}