private void AddStateChange(SaleStateChange stateChange, bool isInitialStateChange)
{
if (stateChange is null)
{
throw new BaristaException("invalid_sale_state_change", "The state change is empty.");
}
ValidateStateChange(stateChange.State, isInitialStateChange);
StateChanges.Add(stateChange);
SetUpdatedNow();
}
public void AddStateChange(SaleStateChange stateChange)
{
AddStateChange(stateChange, MostRecentStateChange is null);
}