public async void Start(TradingViewTiker tiker, TikerValues tikerValues, ShellVm vm, int startDelayMs)
{
await Task.Delay(startDelayMs);
_vm = vm;
_tikerValues = tikerValues;
_tradingViewExtractor = new TradingViewExtractor(tiker);
_tradingViewExtractor.CrossRateFetched += TradingViewExtractorCrossRateFetched;
_tradingViewExtractor.ConnectWebSocketAndRequestSession().Wait();
_tradingViewExtractor.RequestData().Wait();
while (true)
{
var result = _tradingViewExtractor.ReceiveData().Result;
if (result)
{
Thread.Sleep(10);
}
else
{
Thread.Sleep(100);
_tradingViewExtractor = new TradingViewExtractor(tiker);
_tradingViewExtractor.CrossRateFetched += TradingViewExtractorCrossRateFetched;
_tradingViewExtractor.ConnectWebSocketAndRequestSession().Wait();
_tradingViewExtractor.RequestData().Wait();
}
}
// ReSharper disable once FunctionNeverReturns
}
private static string TikerToRequest(this TradingViewTiker tiker)
{
switch (tiker)
{
case TradingViewTiker.EurUsd: return(EurUsdRequest);
case TradingViewTiker.UsdRub: return(UsdRubRequest);
case TradingViewTiker.EurRub: return(EurRubRequest);
case TradingViewTiker.UkOil: return(BrentRequest);
case TradingViewTiker.Gold: return(GoldRequest);
case TradingViewTiker.Voo: return(VooRequest);
case TradingViewTiker.Vix: return(VixRequest);
case TradingViewTiker.Spx: return(SpxRequest);
case TradingViewTiker.Bnd: return(BndRequest);
default: return(UsdRubRequest);
}
}
public static ArraySegment <byte> ToBufferizedRequest(this TradingViewTiker tiker)
{
var request = tiker.TikerToRequest();
var framed = $"~m~{request.Length}~m~{request}";
var bytes = Encoding.UTF8.GetBytes(framed);
return(new ArraySegment <byte>(bytes, 0, bytes.Length));
}
public TradingViewExtractor(TradingViewTiker tiker)
{
_tiker = tiker;
tradingViewUri = new Uri(tradingViewAddress);
var encoded = Encoding.UTF8.GetBytes(sessionRequest);
buffer = new ArraySegment <byte>(encoded, 0, encoded.Length);
ClientWebSocket = new ClientWebSocket();
ClientWebSocket.Options.UseDefaultCredentials = true;
ClientWebSocket.Options.SetRequestHeader("Origin", "https://www.tradingview.com");
cts = new CancellationTokenSource();
}
