public static void DetailTheExchange(int keyPush, int preceedingKeyPush) { if (debtToCustomer > ProductStock.ShowProductInfo(keyPush).ProductPrice) { if (keyPush == preceedingKeyPush && Display.RevealCurrentMessage().Contains("to confirm")) { ProductStock.SendProduct(keyPush); debtToCustomer -= ProductStock.ShowProductInfo(keyPush).ProductPrice; } else { ActivityControl.ConcatenateCurrentMessage($"Push {keyPush} to confirm buy"); } } else { ActivityControl.ConcatenateCurrentMessage($"You miss by {debtToCustomer - ProductStock.ShowProductInfo(keyPush - 1).ProductPrice}kr"); } }