Repo created

generator/holes.hpp

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+#pragma once
+
+#include "generator/feature_builder.hpp"
+#include "generator/ways_merger.hpp"
+
+#include "base/control_flow.hpp"
+
+#include <cstdint>
+
+struct OsmElement;
+
+namespace generator
+{
+namespace cache
+{
+class IntermediateDataReaderInterface;
+}  // namespace cache
+
+class HolesAccumulator
+{
+public:
+  explicit HolesAccumulator(std::shared_ptr<cache::IntermediateDataReaderInterface> const & cache);
+
+  void operator()(uint64_t id) { m_merger.AddWay(id); }
+  feature::FeatureBuilder::Geometry & GetHoles();
+
+private:
+  AreaWayMerger m_merger;
+  feature::FeatureBuilder::Geometry m_holes;
+};
+
+/// Find holes for way with 'id' in first relation.
+class HolesProcessor
+{
+public:
+  explicit HolesProcessor(uint64_t id, std::shared_ptr<cache::IntermediateDataReaderInterface> const & cache);
+
+  /// 1. relations process function
+  base::ControlFlow operator()(uint64_t /* id */, RelationElement const & e);
+  /// 2. "ways in relation" process function
+  void operator()(uint64_t id, std::string const & role);
+  feature::FeatureBuilder::Geometry & GetHoles() { return m_holes.GetHoles(); }
+
+private:
+  uint64_t m_id;  ///< id of way to find it's holes
+  HolesAccumulator m_holes;
+};
+
+class HolesRelation
+{
+public:
+  explicit HolesRelation(std::shared_ptr<cache::IntermediateDataReaderInterface> const & cache);
+
+  void Build(OsmElement const * p);
+  feature::FeatureBuilder::Geometry & GetHoles() { return m_holes.GetHoles(); }
+  AreaWayMerger & GetOuter() { return m_outer; }
+
+private:
+  HolesAccumulator m_holes;
+  AreaWayMerger m_outer;
+};
+}  // namespace generator