private void HandlerOrder(Order order, Action onSuccess, Action <string> onFailure)
{
var validation = ValidateOrder(order);
if (!validation.IsValid)
{
onFailure?.Invoke(validation.Reason);
return;
}
var bestBidPrice = _orderStore.BestBid;
var bestAskPrice = _orderStore.BestAsk;
// Accept bid (buy) and ask (sell) orders of a specified quantity and price for 1 stock
var tradingOrder = TradingOrder.New(order);
_orderStore.Add(tradingOrder);
onSuccess?.Invoke();
// Publishes an event when an order has been accepted (not necessarily matched)
NotifyOrderPlaced(order);
// Find if any matched, Publishes an event when a bid order has been settled with a matching ask order, partially or otherwise
ResolveMatching(tradingOrder);
// Publishes an event when the best bid and ask price changes
if (IsPriceChanging(bestBidPrice, bestAskPrice))
{
NotifyPriceChanged();
}
}
