private DataProvider()
{
FilesStorage.Instance.Watcher(ContentCategory.Miscellaneous).Update += OnUpdate;
_nameNationalities = Lazier.Create(() => NationalitiesAndNames.SelectMany(
x => from y in x.Value select new NameNationality {
Name = y, Nationality = x.Key
}).ToList());
_countryToIds = Lazier.Create <IReadOnlyDictionary <string, string> >(() => CountryByIds.ToDictionary(x => x.Value, x => x.Key));
_countryToKunosIds = Lazier.Create <IReadOnlyDictionary <string, string> >(() => CountryByKunosIds.ToDictionary(x => x.Value, x => x.Key));
_carYears = Lazier.Create <IReadOnlyDictionary <string, int> >(() => Years.GetValueOrDefault("cars") ?? new Dictionary <string, int>());
_trackYears = Lazier.Create <IReadOnlyDictionary <string, int> >(() => Years.GetValueOrDefault("tracks") ?? new Dictionary <string, int>());
_showroomYears = Lazier.Create <IReadOnlyDictionary <string, int> >(() => Years.GetValueOrDefault("showrooms") ?? new Dictionary <string, int>());
}
