public void Sell(string stock, int quantity)
{
if (!Shares.ContainsKey(stock))
{
return;
}
Shares[stock] = Shares[stock] - quantity;
Orders[stock] = quantity;
}
public void Buy(string stock, int quantity)
{
if (Shares.ContainsKey(stock))
{
Shares[stock] = Shares[stock] + quantity;
}
else
{
Shares[stock] = quantity;
}
}
public static string AddShare(FileShare share)
{
var key = "";
do
{
key = CryptoHelper.ToSafe64String(Guid.NewGuid().ToByteArray());
} while (Shares.ContainsKey(key));
return(Shares.TryAdd(key, share) ? key : null);
}
public Task BuyAsync(string stock, int quantity)
{
if (Shares.ContainsKey(stock))
{
Shares[stock] = Shares[stock] + quantity;
}
else
{
Shares[stock] = quantity;
}
return(Task.CompletedTask);
}
