/// <summary>
/// Register new chat handle and associate it with the connection id.
/// Exception is thrown if handle is in use or invalid
/// </summary>
/// <param name="handle">Handle to register</param>
public async Task RegisterHandle(string handle)
{
if (string.IsNullOrWhiteSpace(handle))
{
throw new ChatHubException("Illegal handle");
}
var activeUsers = await _activeUserRepository.GetActiveUsers();
if (activeUsers.Select(u => u.Handle).Contains(handle))
{
throw new ChatHubException("Handle is taken");
}
await Clients.All.SendAsync(NewUserMethod, handle);
await _activeUserRepository.AddActiveUser(new User
{
Id = Context.ConnectionId,
Handle = handle
});
}
public async Task <IEnumerable <string> > GetAllActive()
{
var users = await _activeUserRepository.GetActiveUsers();
return(users.Select(m => m.Handle));
}