private void RequestApproval(double amount)
{
string pendingApprover = approverChain.Approve(amount);
OrderItems.Add(string.IsNullOrEmpty(pendingApprover) ?
$"Expense of {amount} € was not approved by anyone" :
$"Expense of {amount} € is pending at {pendingApprover}");
}
private void RequestApproval(double amount)
{
string approver = approverChain.Approve(amount);
OrderItems.Add(string.IsNullOrEmpty(approver) ?
$"Expense of {amount} € was not approved" :
$"Expense of {amount} € was approved by {approver}");
}