public int?GetVariantScore(VariantSet requestedVariants, VariantSet candidateVariants,
VariantSet candidateImplicitVariants)
{
var score = ZeroScore;
var excessVariants = new HashSet <IVariant>(candidateVariants);
foreach (var requestedVariant in requestedVariants)
{
// Matches exact variant?
if (candidateVariants.Contains(requestedVariant))
{
score += ExplicitVariantScore;
excessVariants.Remove(requestedVariant);
}
// Matches another variant in same group? (fail!)
else if (candidateVariants.Any(x => x.Group == requestedVariant.Group))
{
return(null);
}
// Matches implicit variant?
else if (candidateImplicitVariants.Contains(requestedVariant))
{
score += ImplicitVariantScore;
}
// Matches another implicit variant in same group?
else if (candidateImplicitVariants.Any(x => x.Group == requestedVariant.Group))
{
score -= IncorrectImplicitVariantPenality;
}
// No variant specified for that group (is a fallback)
else
{
score += FallbackVariantScore;
}
}
score -= excessVariants.Count * ExcessVariantPenality;
return(score);
}
public override bool Matches(string filter) => base.Matches(filter) || Target.Name.CaseInsensitiveContains(filter) || _implicitVariants.Any(x => x.Name.CaseInsensitiveContains(filter));