/**
APM is short for Application Performance Manage
this file implements SkyWalking APM
*/
package apm

import (
	"github.com/SkyAPM/go2sky"
)

type noopReporter struct {
}

func (r *noopReporter) Boot(service string, serviceInstance string) {
}

func (r *noopReporter) Send(spans []go2sky.ReportedSpan) {
}

func (r *noopReporter) Close() {
}

func createTracer(skyWalkingUrl string, serverName string, samplePartitions uint32,
	skyWalkingEnable bool, reporter go2sky.Reporter) (*go2sky.Tracer, go2sky.Reporter) {
	if skyWalkingEnable {
		if reporter == nil {
			rp, err := NewGRPCReporter(skyWalkingUrl, WithSamplePartitions(samplePartitions))
			if err != nil {
				panic(err)
			}
			reporter = rp
		}
	} else {
		reporter = &noopReporter{}
	}
	tr, err := go2sky.NewTracer(serverName, go2sky.WithReporter(reporter))
	if err != nil {
		panic(err)
	}
	return tr, reporter
}