public void RemoveUserFromGroup(Models.User user, Guid groupId)
{
RemoveUserFromAssociatedChatsInGroup(user, groupId);
RemoveUserFromAssociatedChannelsInGroup(user, groupId);
var groupUser = _groupUserRepository.GetByUserIdAndGroupId(user.Id, groupId);
_groupUserRepository.Remove(groupUser);
_groupUserStore.RemoveByUserIdAndGroupId(user.Id, groupId);
var group = _groupRepository.Get(groupId);
_groupEventService.AddUserRemovedFromGroupEvent(group, _authorizedUser, user);
}
