public override async Task OnDisconnectedAsync(Exception exception)
{
try
{
_visitor.LetOutVisitor(Context.ConnectionId);
var user = _db.Connections.Where(c => Context.ConnectionId == c.ConnectionID && c.Connected)
.OrderByDescending(c => c.ConnectionDate)
.FirstOrDefault();
var host = _db.Connections.Where(c => c.User.UserName == _configuration["HostUser:Name"] && c.Connected)
.OrderByDescending(c => c.ConnectionDate)
.FirstOrDefault();
if (host != null && user != null)
{
_logger.LogDebug($"{host.User.UserName}({host.ConnectionID}) is already connected.");
await Clients.Client(host.ConnectionID).SendAsync("iamout", user.User.UserName);
_logger.LogDebug($"{user.User.UserName} is disconnected. Detail: {exception?.Message}");
}
}
catch (Exception ex)
{
_logger.LogError(ex, $"Unexpected error is occured {ex.Message}");
}
finally
{
await base.OnDisconnectedAsync(exception);
}
}