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#pragma once
#include "indexer/cell_id.hpp"
#include "indexer/feature.hpp"
#include "indexer/feature_covering.hpp"
#include "indexer/features_offsets_table.hpp"
#include "indexer/feature_source.hpp"
#include "indexer/features_vector.hpp"
#include "indexer/mwm_set.hpp"
#include "indexer/scale_index.hpp"
#include "indexer/unique_index.hpp"
#include "coding/file_container.hpp"
#include "base/macros.hpp"
#include <algorithm>
#include <cstdint>
#include <functional>
#include <memory>
#include <utility>
#include <vector>
#include "defines.hpp"
class DataSource : public MwmSet
{
public:
using FeatureConstCallback = std::function<void(FeatureType const &)>;
using FeatureCallback = std::function<void(FeatureType &)>;
using FeatureIdCallback = std::function<void(FeatureID const &)>;
explicit DataSource(std::unique_ptr<FeatureSourceFactory> factory) : m_factory(std::move(factory))
{
}
~DataSource() override = default;
/// Guard for loading features from particular MWM by demand.
/// @note This guard is suitable when mwm is loaded.
class FeaturesLoaderGuard
{
public:
FeaturesLoaderGuard(DataSource const & dataSource, MwmId const & id,
FeatureSourceFactory const & factory)
: m_handle(dataSource.GetMwmHandleById(id)), m_source(factory(m_handle))
{
}
MwmSet::MwmId const & GetId() const { return m_handle.GetId(); }
std::string GetCountryFileName() const;
bool IsWorld() const;
std::unique_ptr<FeatureType> GetOriginalFeatureByIndex(uint32_t index) const;
std::unique_ptr<FeatureType> GetOriginalOrEditedFeatureByIndex(uint32_t index) const;
/// Everyone, except Editor core, should use this method.
WARN_UNUSED_RESULT bool GetFeatureByIndex(uint32_t index, FeatureType & ft) const;
/// Editor core only method, to get 'untouched', original version of feature.
WARN_UNUSED_RESULT bool GetOriginalFeatureByIndex(uint32_t index, FeatureType & ft) const;
size_t GetNumFeatures() const { return m_source->GetNumFeatures(); }
private:
MwmHandle m_handle;
std::unique_ptr<FeatureSource> m_source;
};
/// Registers a new map.
std::pair<MwmId, RegResult> RegisterMap(platform::LocalCountryFile const & localFile);
/// Deregisters a map from internal records.
///
/// \param countryFile A countryFile denoting a map to be deregistered.
/// \return True if the map was successfully deregistered. If map is locked
/// now, returns false.
bool DeregisterMap(platform::CountryFile const & countryFile);
void ForEachFeatureIDInRect(FeatureIdCallback const & f, m2::RectD const & rect, int scale) const;
void ForEachInRect(FeatureCallback const & f, m2::RectD const & rect, int scale) const;
void ForEachInScale(FeatureCallback const & f, int scale) const;
void ForEachInRectForMWM(FeatureCallback const & f, m2::RectD const & rect, int scale,
MwmId const & id) const;
// "features" must be sorted using FeatureID::operator< as predicate.
void ReadFeatures(FeatureConstCallback const & fn, std::vector<FeatureID> const & features) const;
void ReadFeature(FeatureConstCallback const & fn, FeatureID const & feature) const
{
return ReadFeatures(fn, {feature});
}
protected:
using ReaderCallback = std::function<void(MwmSet::MwmHandle const & handle,
covering::CoveringGetter & cov, int scale)>;
void ForEachInIntervals(ReaderCallback const & fn, covering::CoveringMode mode,
m2::RectD const & rect, int scale) const;
/// MwmSet overrides:
std::unique_ptr<MwmInfo> CreateInfo(platform::LocalCountryFile const & localFile) const override;
std::unique_ptr<MwmValueBase> CreateValue(MwmInfo & info) const override;
private:
std::unique_ptr<FeatureSourceFactory> m_factory;
};
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