Add command to join groups with invite link

whatsapp-ext/chat.go

@@ -45,6 +45,7 @@ const (
 	ChatActionAnnounce    ChatActionType = "announce"
 	ChatActionPromote     ChatActionType = "promote"
 	ChatActionDemote      ChatActionType = "demote"
+	ChatActionIntroduce   ChatActionType = "introduce"
 )
 
 type ChatUpdateData struct {
@@ -61,12 +62,20 @@ type ChatUpdateData struct {
 		Topic string `json:"desc"`
 		ID    string `json:"descId"`
 		SetAt int64  `json:"descTime"`
+		SetBy string `json:"descOwner"`
 	}
 
 	RemoveTopic struct {
 		ID string `json:"descId"`
 	}
 
+	Introduce struct {
+		CreationTime int64    `json:"creation"`
+		Admins       []string `json:"admins"`
+		SuperAdmins  []string `json:"superadmins"`
+		Regulars     []string `json:"regulars"`
+	}
+
 	Restrict bool
 
 	Announce bool
@@ -98,6 +107,16 @@ func (cud *ChatUpdateData) UnmarshalJSON(data []byte) error {
 
 	var unmarshalTo interface{}
 	switch cud.Action {
+	case ChatActionIntroduce:
+		err = json.Unmarshal(arr[2], &cud.NameChange)
+		if err != nil {
+			return err
+		}
+		err = json.Unmarshal(arr[2], &cud.AddTopic)
+		if err != nil {
+			return err
+		}
+		unmarshalTo = &cud.Introduce
 	case ChatActionNameChange:
 		unmarshalTo = &cud.NameChange
 	case ChatActionAddTopic:
@@ -121,6 +140,15 @@ func (cud *ChatUpdateData) UnmarshalJSON(data []byte) error {
 	for index, jid := range cud.PermissionChange.JIDs {
 		cud.PermissionChange.JIDs[index] = strings.Replace(jid, OldUserSuffix, NewUserSuffix, 1)
 	}
+	for index, jid := range cud.Introduce.SuperAdmins {
+		cud.Introduce.SuperAdmins[index] = strings.Replace(jid, OldUserSuffix, NewUserSuffix, 1)
+	}
+	for index, jid := range cud.Introduce.Admins {
+		cud.Introduce.Admins[index] = strings.Replace(jid, OldUserSuffix, NewUserSuffix, 1)
+	}
+	for index, jid := range cud.Introduce.Regulars {
+		cud.Introduce.Regulars[index] = strings.Replace(jid, OldUserSuffix, NewUserSuffix, 1)
+	}
 	return nil
 }