public IDictionary <string, Tuple <string, bool> > GetAllGenres(string startsWith)
{
const string field = "genre";
using (var directory = new SimpleFSDirectory(new DirectoryInfo(Settings.Instance.DatabaseIndex)))
using (var reader = IndexReader.Open(directory, true)) {
var result = new SortedDictionary <string, Tuple <string, bool> >();
var terms = reader.Terms(new Term(field));
while (terms.Next())
{
var term = terms.Term;
if (term.Field == field && term.Text.StartsWith(startsWith))
{
var name = GenreExtensions.Cut(term.Text, startsWith);
var displayName = GenreExtensions.GetNthName(name, 0);
var fullName = GenreExtensions.Combine(startsWith, displayName);
var isLast = GenreExtensions.IsLast(name);
result[displayName] = new Tuple <string, bool>(fullName, isLast);
}
}
return(result);
}
}
