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#pragma once
#include "generator/feature_builder.hpp"
#include <queue>
struct OsmElement;
namespace generator
{
namespace cache
{
class IntermediateDataReader;
} // namespace cache
// Abstract class FeatureMakerBase is responsible for the conversion OsmElement to FeatureBuilder1.
// The main task of this class is to create features of the necessary types.
// At least one feature should turn out from one OSM element. You can get several features from one element.
class FeatureMakerBase
{
public:
explicit FeatureMakerBase(cache::IntermediateDataReader & cache);
virtual ~FeatureMakerBase() = default;
bool Add(OsmElement & element);
// The function returns true when the receiving feature was successful and a false when not successful.
bool GetNextFeature(feature::FeatureBuilder & feature);
size_t Size() const;
bool Empty() const;
protected:
virtual bool BuildFromNode(OsmElement & element, FeatureParams const & params) = 0;
virtual bool BuildFromWay(OsmElement & element, FeatureParams const & params) = 0;
virtual bool BuildFromRelation(OsmElement & element, FeatureParams const & params) = 0;
virtual void ParseParams(FeatureParams & params, OsmElement & element) const = 0;
cache::IntermediateDataReader & m_cache;
std::queue<feature::FeatureBuilder> m_queue;
};
void TransformAreaToPoint(feature::FeatureBuilder & feature);
void TransformAreaToLine(feature::FeatureBuilder & feature);
feature::FeatureBuilder MakePointFromArea(feature::FeatureBuilder const & feature);
feature::FeatureBuilder MakeLineFromArea(feature::FeatureBuilder const & feature);
} // namespace generator
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