protected IEnumerable <uint> GetAccounts()
{
IReadOnlyCollection <uint> result = Database.GetAccountIds();
FilterTypes filteredBy = FilterTypes.empty;
FilterTypes filteredByUnion = FilterTypes.empty;
if (_filters.ContainsAll(FilterTypes.interests_any | FilterTypes.likes_all))
{
_filters = _filters.ResetFlags(FilterTypes.likes_all);
if (likes.Count == 1)
{
return(LikesIndexer.GetAllWhoLikes(likes[0]));
}
foreach (var likee in likes)
{
_intersect.Add(LikesIndexer.GetAllWhoLikes(likee));
}
foreach (var interest in interestIndexes)
{
_intersect.Add(StringIndexer.Interests.GetList(interest));
}
_filters = _filters.ResetFlags(FilterTypes.interests_any);
return(_intersect);
}
if (_filters.ContainsAll(FilterTypes.fname_any | FilterTypes.sex_eq))
{
if (fnamesIndexes == null || fnamesIndexes.Count == 0)
{
return(Array.Empty <uint>());
}
var probeNameList = StringIndexer.FirstNames.GetList(fnamesIndexes[0]);
var probeSex = Database.GetAccount(probeNameList[0]).SexStatus & SexStatus.AllSex;
if ((probeSex & _sexStatus) == SexStatus.None)
{
return(Array.Empty <uint>());
}
}
if (_filters.ContainsAll(FilterTypes.birth_year) &&
_filters.ContainsAny(FilterTypes.cities_all_types) &&
_filters.ContainsAny(FilterTypes.sex_status_all_types))
{
ref StatusGroup filtered = ref GroupIndex.SexGroupByCity(cityIndex);
var birthYear = (ushort)birth;
var list = filtered.GetListBy(_sexStatus, birthYear, _union);
_filters = _filters.ResetFlags(FilterTypes.birth_year | FilterTypes.cities_all_types | FilterTypes.sex_status_all_types);
return(list);
}
public HList <Account> ExecuteWithoutIndex(Account me)
{
if (me.likes == null || _cityIndex == 0 || _countryIndex == 0)
{
return(HList <Account> .Empty);
}
//TODO: city or country index highly likely to work better cause of smaller final record set
foreach (Like likedByMe in me.likes)
{
HList <uint> candidates = LikesIndexer.GetAllWhoLikes(likedByMe.Id);
_resultSet.UnionWith(candidates);
}
_resultSet.Remove(me.id);
Span <uint> accounts = stackalloc uint[150];
if (_cityIndex < ushort.MaxValue)
{
foreach (uint cid in _resultSet)
{
Account candidate = Database.GetAccount(cid);
if (_cityIndex != candidate.cityIndex)
{
continue;
}
CalcSimilarity(me, candidate, ref accounts);
}
}
else if (_countryIndex < ushort.MaxValue)
{
foreach (uint cid in _resultSet)
{
Account candidate = Database.GetAccount(cid);
if (_countryIndex != candidate.countryIndex)
{
continue;
}
CalcSimilarity(me, candidate, ref accounts);
}
}
else
{
foreach (uint cid in _resultSet)
{
Account candidate = Database.GetAccount(cid);
CalcSimilarity(me, candidate, ref accounts);
}
}
var maxItems = Math.Min(limit, _list.Count);
for (uint i = 0; i < maxItems; i++)
{
_result.Add(Database.GetAccount(_list[i].Key));
}
return(_result);
}