BusinessLogic.Logic.Users.GamingGroupInviteConsumer.AddExistingUserToGamingGroup C# (CSharp) Метод

        public AddUserToGamingGroupResult AddExistingUserToGamingGroup(string gamingGroupInvitationId)
        {
            var invitation = ValidateGamingGroupInvitation(gamingGroupInvitationId);
            var result = new AddUserToGamingGroupResult
            {
                EmailAddress = invitation.InviteeEmail
            };

            if (invitation.RegisteredUserId == null)
            {
                result.UserAddedToExistingGamingGroup = false;
            }
            else
            {
                var existingUser = ValidateExistingUser(invitation);

                AddNewGamingGroupAssociation(invitation);
                SwitchCurrentGamingGroup(existingUser, invitation);
                result.UserAddedToExistingGamingGroup = true;

                UpdateGamingGroupInvitation(invitation, existingUser);
                AssociatePlayerWithApplicationUser(invitation, existingUser);
            }

            return result;
        }