private void RemoveAllChatUsers(Models.Chat chat, Models.Group group)
{
var chatUsers = _chatUserRepository.GetAllByChatId(chat.Id);
_chatUserRepository.RemoveAllByChatId(chat.Id);
_chatUserStore.RemoveAllByChatId(chat.Id);
foreach (var chatUser in chatUsers)
{
_chatEventService.AddUserRemovedFromChatEvent(group, _authorizedUser, chatUser.User, chat);
}
}