internal string Query(RNG rng, Query query)
{
var index = String.IsNullOrEmpty(query.Subtype) ? 0 : GetSubtypeIndex(query.Subtype);
if (index == -1)
{
return "BAD_SUBTYPE";
}
IEnumerable<DictionaryEntry> pool = _words;
pool = query.Exclusive
? pool.Where(e => e.Classes.Any() && e.Classes.All(c => query.ClassFilters.Any(set => set.Any(t => t.Item2 == c))))
: pool.Where(e => query.ClassFilters.All(set => set.Any(t => t.Item1 == (e.Classes.Contains(t.Item2)))));
pool = query.RegexFilters.Aggregate(pool, (current, regex) => current.Where(e => regex.Item1 == regex.Item2.IsMatch(e.Values[index])));
if (!pool.Any())
{
return "NOT_FOUND";
}
int number = String.IsNullOrEmpty(query.Carrier) ? rng.Next(pool.Sum(e => e.Weight)) + 1
: rng.PeekAt(query.Carrier.Hash(), pool.Sum(e => e.Weight));
foreach (var e in pool)
{
if (number <= e.Weight) return e.Values[index];
number -= e.Weight;
}
return "NOT_FOUND";
}
