package proxy

import (
	"log"
	"runtime/debug"
	"sync"
)

var servicesMap = new(sync.Map)

type Service struct {
	TCPConn TCP
	Name    string
}

func (s *Service) Stop() {
	servicesMap.Delete(s.Name)
	s.TCPConn.Close()
}

func Run(name string, args TCPArgs) *Service {
	service := &Service{
		TCPConn: &tcp{cfg: args},
		Name:    name,
	}
	store, loaded := servicesMap.LoadOrStore(name, service)
	if loaded {
		service = store.(*Service)
	}

	go func() {
		defer func() {
			recoverErr := recover()
			if recoverErr != nil {
				log.Fatalf("%s servcie crashed, ERR: %s\ntrace:%s", name, recoverErr, string(debug.Stack()))
			}
		}()
		startErr := service.TCPConn.Start()
		if startErr != nil {
			log.Fatalf("%s servcie fail, ERR: %s", name, startErr)
		}
	}()

	return service
}