fix changes from debug, edit groups return, add new connections func

wsServer.go

@@ -27,7 +27,7 @@ func ServeWsConnection(responseWriter http.ResponseWriter, request *http.Request
 	var isAuthenticated bool
 	var ignoreCache bool
 
-	defer closeConnection(&user, ignoreCache)
+	defer func() { closeConnection(&user, ignoreCache) }()
 	for {
 		var userMessage map[string]any
 		err = wsjson.Read(ctx, connection, &userMessage)
@@ -71,8 +71,13 @@ func sendMessageCloseIfTimeout(user *User, message *map[string]any) {
 
 func sendToAllMessageCloseIfTimeout(message *map[string]any) {
 	mu.RLock()
-	defer mu.RUnlock()
+	users := make([]*User, 0, len(CacheUsers))
 	for _, user := range CacheUsers {
+		users = append(users, user)
+	}
+	mu.RUnlock()
+
+	for _, user := range users {
 		sendMessageCloseIfTimeout(user, message)
 	}
 }
@@ -83,7 +88,7 @@ func WsSendToUser(from *User, to *User, message string) {
 		"from":    from.Id,
 		"content": message,
 	}
-	sendMessageCloseIfTimeout(from, &msg)
+	sendMessageCloseIfTimeout(to, &msg)
 }
 
 func WsSendToGroup(group *Group, sender *User, message string) error {
@@ -176,5 +181,7 @@ func closeConnection(user *User, ignoreCache bool) {
 	if !ignoreCache {
 		CacheDeleteUser(user.Id)
 	}
-	user.WsConn.CloseNow()
+	if user.WsConn != nil {
+		user.WsConn.CloseNow()
+	}
 }