package middleware

import (
	"github.com/gin-gonic/gin"
	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/attribute"
)

func Tracing(serviceName string) gin.HandlerFunc {
	tracer := otel.Tracer(serviceName)

	return func(c *gin.Context) {
		ctx, span := tracer.Start(c.Request.Context(), c.FullPath())
		defer span.End()

		span.SetAttributes(
			attribute.String("http.method", c.Request.Method),
			attribute.String("http.path", c.Request.URL.Path),
		)

		c.Request = c.Request.WithContext(ctx)
		c.Next()
	}
}