public int Add(string numbers)
{
if (string.IsNullOrEmpty(numbers))
{
AddOccured?.Invoke(numbers, 0);
return(0);
}
string[] delimiters = ExtractDelimiters(ref numbers);
int sum = 0;
var negativeNumbers = new List <int>();
var parsedNumbers = numbers.Split(delimiters, StringSplitOptions.None).Select(int.Parse);
foreach (int number in parsedNumbers.Where(n => n <= 1000))
{
if (number < 0)
{
negativeNumbers.Add(number);
}
sum += number;
}
if (negativeNumbers.Any())
{
throw new Exception("negatives not allowed: " + string.Join(",", negativeNumbers));
}
AddOccured?.Invoke(numbers, sum);
return(sum);
}
public int Add(string numbers)
{
var parser = new StringParser(numbers);
var result = NumberFilterRules.Get
.Aggregate(parser.Numbers, (numbers, rule) => rule.Apply(numbers))
.Sum();
AddOccured?.Invoke(numbers, result);
CallCount++;
return(result);
}
protected virtual void OnAddOccured(EventArgs e)
{
CalledCount = CalledCount + 1;
AddOccured?.Invoke(this, e);
}
