/// <summary>
/// Will scan an array of strings and look for phrases that match the given criteria
/// </summary>
/// <param name="splittedPhrases">The text you want to search</param>
/// <param name="values">The values you want to search for</param>
/// <param name="calculationMethod">The Calculation Methods you want to use</param>
/// <param name="minCharsPerPhrase">Set the minimum number of characters for each phrase</param>
/// <param name="maximumWordsPerPhrase">Set the maximum amount of words for each phrase</param>
/// <returns>A list of phrases that match our criteria</returns>
public static async Task <List <Phrase> > ScanAsync(string[] splittedPhrases, PhraseSeparator phraseSeparator, int[] values, CalculationMethod calculationMethod, int minCharsPerPhrase = 3, int minimumWordsPerPhrase = 1, int maximumWordsPerPhrase = 1, CancellationToken cts = default)
{
HashSet <Phrase> matchedPhrases = new HashSet <Phrase>();
if (splittedPhrases != null && values != null && splittedPhrases.Count() > 0 && values.Count() > 0)
{
await Task.Run(() =>
{
int maxValue = values.Max();
int totalSplitted = splittedPhrases.Count();
if (phraseSeparator.HasFlag(PhraseSeparator.Space))
{
for (int i = 0; i < totalSplitted; i++)
{
if (cts.IsCancellationRequested)
{
matchedPhrases.Clear();
break;
}
int counter = 0;
bool isMaxPassed = false;
bool isLimitReached = false;
while (!isMaxPassed && !isLimitReached)
{
string currentPhrase = "";
for (int p = i; p <= i + counter && p < totalSplitted; p++)
{
currentPhrase = string.Concat(currentPhrase, splittedPhrases[p], " ");
if (p == totalSplitted - 1 || currentPhrase.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries).Count() > maximumWordsPerPhrase)
{
isLimitReached = true;
}
}
Phrase phrase = new Phrase(currentPhrase);
int countPhraseWords = phrase.NormalizedText.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries).Count();
if (phrase.NormalizedText.Length >= minCharsPerPhrase && countPhraseWords >= minimumWordsPerPhrase && countPhraseWords <= maximumWordsPerPhrase)
{
if (phrase.ContainsAnyValue(values, calculationMethod, out int containedValue))
{
matchedPhrases.Add(phrase);
}
//Here we check to see whether the values of a phrase are larger than the maximum value we are looking for.
//If they are, then there is no need to continue adding more words to this phrase.
foreach (CalculationMethod c in Enum.GetValues(typeof(CalculationMethod)))
{
if ((calculationMethod.HasFlag(c) && c != CalculationMethod.None && c != CalculationMethod.All) && (!(phrase.Values[c] < maxValue && phrase.Values[c] != 0)))
{
isMaxPassed = true;
}
}
}
counter++;
}
}
}
else
{
if (phraseSeparator != PhraseSeparator.AllExceptSpace)
{
string[] separators = GetMissingSeparators(phraseSeparator);
for (int i = 0; i < splittedPhrases.Count(); i++)
{
foreach (string s in separators)
{
splittedPhrases[i] = splittedPhrases[i].Replace(s, " ");
}
}
}
for (int i = 0; i < totalSplitted; i++)
{
if (cts.IsCancellationRequested)
{
matchedPhrases.Clear();
break;
}
Phrase phrase = new Phrase(splittedPhrases[i]);
int countWords = phrase.NormalizedText.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries).Count();
if (phrase.NormalizedText.Length >= minCharsPerPhrase && countWords >= minimumWordsPerPhrase && countWords <= maximumWordsPerPhrase)
{
if (phrase.ContainsAnyValue(values, calculationMethod, out int containedValue))
{
matchedPhrases.Add(phrase);
}
}
}
}
});
}
return(matchedPhrases.ToList());
}
