public static OperationResult AsDone(AppliedOperation appliedOperation, string comment = null)
{
return(new OperationResult
{
Status = OperationStatus.Done,
Result = appliedOperation,
Comment = comment
});
}
bool IEquatable <OperationResult> .Equals(OperationResult other)
{
if (other == null)
{
return(false);
}
return(this.Status.Equals(other.Status) &&
string.Equals(this.Comment, other.Comment) &&
AppliedOperation.Equals(this.Result, other.Result));
}
public OperationResult ApplyOn(Account account)
{
if (!IsValidFor(account))
{
return(OperationResult.AsRejected("rejected"));
}
var appliedOperation = new AppliedOperation(
this,
account.CurrentBalance,
account.CurrentBalance - Amount,
DateTime.Now
);
return(OperationResult.AsDone(appliedOperation));
}