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#pragma once
#include "search/feature_offset_match.hpp"
#include "search/query_params.hpp"
#include "platform/mwm_traits.hpp"
#include "coding/reader.hpp"
#include "geometry/rect2d.hpp"
#include "base/cancellable.hpp"
#include "base/dfa_helpers.hpp"
#include "base/levenshtein_dfa.hpp"
#include "std/unique_ptr.hpp"
class MwmValue;
namespace coding
{
class CompressedBitVector;
}
namespace search
{
class MwmContext;
class TokenSlice;
class Retrieval
{
public:
template<typename Value>
using TrieRoot = trie::Iterator<ValueList<Value>>;
Retrieval(MwmContext const & context, base::Cancellable const & cancellable);
// Following functions retrieve from the search index corresponding to
// |value| all features matching to |request|.
unique_ptr<coding::CompressedBitVector> RetrieveAddressFeatures(
SearchTrieRequest<strings::UniStringDFA> const & request) const;
unique_ptr<coding::CompressedBitVector> RetrieveAddressFeatures(
SearchTrieRequest<strings::PrefixDFAModifier<strings::UniStringDFA>> const & request) const;
unique_ptr<coding::CompressedBitVector> RetrieveAddressFeatures(
SearchTrieRequest<strings::LevenshteinDFA> const & request) const;
unique_ptr<coding::CompressedBitVector> RetrieveAddressFeatures(
SearchTrieRequest<strings::PrefixDFAModifier<strings::LevenshteinDFA>> const & request) const;
// Retrieves from the search index corresponding to |value| all
// postcodes matching to |slice|.
unique_ptr<coding::CompressedBitVector> RetrievePostcodeFeatures(TokenSlice const & slice) const;
// Retrieves from the geometry index corresponding to |value| all features belonging to |rect|.
unique_ptr<coding::CompressedBitVector> RetrieveGeometryFeatures(m2::RectD const & rect,
int scale) const;
private:
template <template <typename> class R, typename... Args>
unique_ptr<coding::CompressedBitVector> Retrieve(Args &&... args) const;
MwmContext const & m_context;
base::Cancellable const & m_cancellable;
ModelReaderPtr m_reader;
version::MwmTraits::SearchIndexFormat m_format;
unique_ptr<TrieRoot<FeatureWithRankAndCenter>> m_root0;
unique_ptr<TrieRoot<FeatureIndexValue>> m_root1;
};
} // namespace search
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