Method GetMatchingStreetImpl

libs/search/features_layer_matcher.cpp:110–154

template <class FeatureGetterT>
uint32_t FeaturesLayerMatcher::GetMatchingStreetImpl(FeatureID const & id, FeatureGetterT && getter)
{
  // Check if this feature is modified - the logic will be different.
  string streetName;
  bool const edited = osm::Editor::Instance().GetEditedFeatureStreet(id, streetName);

  // Check the cached result value.
  auto entry = m_matchingStreetsCache.Get(id.m_index);
  if (!edited && !entry.second)
    return entry.first;

  uint32_t & result = entry.first;
  result = kInvalidId;

  FeatureType * pFeature = getter();
  if (pFeature == nullptr)
    return result;

  FeatureID streetId;
  if (!edited && m_reverseGeocoder.GetOriginalStreetByHouse(*pFeature, streetId))
  {
    result = streetId.m_index;
    return result;
  }

  // Get nearby streets and calculate the resulting index.
  auto const & streets = GetNearbyStreets(*pFeature);

  if (edited)
  {
    auto const ret =
        find_if(streets.begin(), streets.end(), [&streetName](Street const & st) { return st.m_name == streetName; });
    if (ret != streets.end())
    {
      result = ret->m_id.m_index;
      return result;
    }
  }

  // If there is no saved street for feature, assume that it's a nearest street if it's too close.
  if (!streets.empty() && streets[0].m_distanceMeters < kMaxApproxStreetDistanceM)
    result = streets[0].m_id.m_index;

  return result;
}
}  // namespace search