public async Task SendMessage(CreateMessageDto createMessageDto)
{
var username = Context.User.GetUserName();
if (username == createMessageDto.RecipiantUserName)
{
throw new HubException("You cant send yourself messages");
}
var sender = await _unitOfWork.UserRepository.GetUserByUsernameAsync(Context.User.GetUserName());
var recipient = await _unitOfWork.UserRepository.GetUserByUsernameAsync(createMessageDto.RecipiantUserName);
if (recipient == null)
{
throw new HubException("User not found");
}
var message = new Message
{
Sender = sender,
Recipiant = recipient,
SenderUsername = sender.UserName,
RecipiantUsername = recipient.UserName,
Content = createMessageDto.Content
};
var groupName = GetGroupName(sender.UserName, recipient.UserName);
var group = await _unitOfWork.MessageRepository.GetMessageGroup(groupName);
if (group.Connections.Any(x => x.Username == recipient.UserName))
{
message.DateRead = DateTime.UtcNow;
}
else
{
var connections = await _presenceTracker.GetConnectionsDorUser(recipient.UserName);
if (connections != null)
{
await _presenceHub.Clients.Clients(connections).SendAsync("NewMessageReceived",
new { username = sender.UserName, knownAs = sender.KnownAs });
}
}
_unitOfWork.MessageRepository.AddMessage(message);
if (await _unitOfWork.Complete())
{
await Clients.Group(groupName).SendAsync("NewMessage", _mapper.Map <MessageDto>(message));
}
}