Chore: improve code architecture

adapters/outbound/vmess.go

@@ -1,6 +1,7 @@
 package adapters
 
 import (
+	"encoding/json"
 	"fmt"
 	"net"
 	"strconv"
@@ -43,24 +44,30 @@ type VmessOption struct {
 	SkipCertVerify bool   `proxy:"skip-cert-verify,omitempty"`
 }
 
-func (ss *Vmess) Name() string {
-	return ss.name
+func (v *Vmess) Name() string {
+	return v.name
 }
 
-func (ss *Vmess) Type() C.AdapterType {
+func (v *Vmess) Type() C.AdapterType {
 	return C.Vmess
 }
 
-func (ss *Vmess) Generator(metadata *C.Metadata) (adapter C.ProxyAdapter, err error) {
-	c, err := net.DialTimeout("tcp", ss.server, tcpTimeout)
+func (v *Vmess) Generator(metadata *C.Metadata) (adapter C.ProxyAdapter, err error) {
+	c, err := net.DialTimeout("tcp", v.server, tcpTimeout)
 	if err != nil {
-		return nil, fmt.Errorf("%s connect error", ss.server)
+		return nil, fmt.Errorf("%s connect error", v.server)
 	}
 	tcpKeepAlive(c)
-	c, err = ss.client.New(c, parseVmessAddr(metadata))
+	c, err = v.client.New(c, parseVmessAddr(metadata))
 	return &VmessAdapter{conn: c}, err
 }
 
+func (v *Vmess) MarshalJSON() ([]byte, error) {
+	return json.Marshal(map[string]interface{}{
+		"type": v.Type().String(),
+	})
+}
+
 func NewVmess(option VmessOption) (*Vmess, error) {
 	security := strings.ToLower(option.Cipher)
 	client, err := vmess.NewClient(vmess.Config{