optimize service define in pkg/service package

internal/service/service.go

@@ -20,9 +20,11 @@ var (
 )
 
 type Service interface {
+	Name() string
+	PreStart() string
+	PreStop() string
 	Start()
 	Stop()
-	Info() string
 }
 
 func NewWebService() Service {

internal/service/web.go

@@ -12,10 +12,26 @@ import (
 	"github.com/rocboss/paopao-ce/internal/conf"
 )
 
+type baseService struct{}
+
 type webService struct {
+	baseService
+
 	server *http.Server
 }
 
+func (baseService) PreStart() string {
+	return ""
+}
+
+func (baseService) PreStop() string {
+	return ""
+}
+
+func (s *webService) Name() string {
+	return "WebService"
+}
+
 func (s *webService) Start() {
 	if err := s.server.ListenAndServe(); err != nil {
 		log.Fatalf("run app failed: %s", err)
@@ -26,7 +42,7 @@ func (s *webService) Stop() {
 	s.server.Shutdown(context.Background())
 }
 
-func (s *webService) Info() string {
+func (s *webService) PreStart() string {
 	return fmt.Sprintf("PaoPao service listen on %s\n", color.GreenString("http://%s:%s", conf.ServerSetting.HttpIp, conf.ServerSetting.HttpPort))
 }