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#pragma once
#include "routing/joint.hpp"
#include "coding/reader.hpp"
#include "coding/write_to_sink.hpp"
#include "std/algorithm.hpp"
#include "std/cstdint.hpp"
#include "std/unordered_map.hpp"
#include "std/utility.hpp"
#include "std/vector.hpp"
namespace routing
{
class RoadJointIds final
{
public:
Joint::Id GetJointId(uint32_t pointId) const
{
if (pointId < m_jointIds.size())
return m_jointIds[pointId];
return Joint::kInvalidId;
}
void AddJoint(uint32_t pointId, Joint::Id jointId)
{
if (pointId >= m_jointIds.size())
m_jointIds.insert(m_jointIds.end(), pointId + 1 - m_jointIds.size(), Joint::kInvalidId);
ASSERT_EQUAL(m_jointIds[pointId], Joint::kInvalidId, ());
m_jointIds[pointId] = jointId;
}
template <typename F>
void ForEachJoint(F && f) const
{
for (uint32_t pointId = 0; pointId < m_jointIds.size(); ++pointId)
{
Joint::Id const jointId = m_jointIds[pointId];
if (jointId != Joint::kInvalidId)
f(pointId, jointId);
}
}
pair<Joint::Id, uint32_t> FindNeighbor(uint32_t pointId, bool forward) const
{
uint32_t const size = static_cast<uint32_t>(m_jointIds.size());
if (forward)
{
for (uint32_t i = pointId + 1; i < size; ++i)
{
Joint::Id const jointId = m_jointIds[i];
if (jointId != Joint::kInvalidId)
return make_pair(jointId, i);
}
}
else
{
for (uint32_t i = min(pointId, size) - 1; i < size; --i)
{
Joint::Id const jointId = m_jointIds[i];
if (jointId != Joint::kInvalidId)
return make_pair(jointId, i);
}
}
return make_pair(Joint::kInvalidId, 0);
}
template <class Sink>
void Serialize(Sink & sink) const
{
WriteToSink(sink, static_cast<Joint::Id>(m_jointIds.size()));
for (Joint::Id jointId : m_jointIds)
WriteToSink(sink, jointId);
}
template <class Source>
void Deserialize(Source & src)
{
m_jointIds.clear();
Joint::Id const jointsSize = ReadPrimitiveFromSource<Joint::Id>(src);
m_jointIds.reserve(jointsSize);
for (Joint::Id i = 0; i < jointsSize; ++i)
{
Joint::Id const jointId = ReadPrimitiveFromSource<Joint::Id>(src);
m_jointIds.emplace_back(jointId);
}
}
private:
// Joint ids indexed by point id.
// If some point id doesn't match any joint id, this vector contains Joint::kInvalidId.
vector<Joint::Id> m_jointIds;
};
class RoadIndex final
{
public:
void Import(vector<Joint> const & joints);
void AddJoint(RoadPoint rp, Joint::Id jointId)
{
m_roads[rp.GetFeatureId()].AddJoint(rp.GetPointId(), jointId);
}
// Find nearest point with normal joint id.
// If forward == true: neighbor with larger point id (right neighbor)
// If forward == false: neighbor with smaller point id (left neighbor)
pair<Joint::Id, uint32_t> FindNeighbor(RoadPoint rp, bool forward) const;
template <class Sink>
void Serialize(Sink & sink) const
{
WriteToSink(sink, static_cast<uint32_t>(m_roads.size()));
for (auto const & it : m_roads)
{
uint32_t const featureId = it.first;
WriteToSink(sink, featureId);
it.second.Serialize(sink);
}
}
template <class Source>
void Deserialize(Source & src)
{
m_roads.clear();
size_t const roadsSize = static_cast<size_t>(ReadPrimitiveFromSource<uint32_t>(src));
for (size_t i = 0; i < roadsSize; ++i)
{
uint32_t featureId = ReadPrimitiveFromSource<decltype(featureId)>(src);
m_roads[featureId].Deserialize(src);
}
}
uint32_t GetSize() const { return m_roads.size(); }
Joint::Id GetJointId(RoadPoint rp) const
{
auto const it = m_roads.find(rp.GetFeatureId());
if (it == m_roads.end())
return Joint::kInvalidId;
return it->second.GetJointId(rp.GetPointId());
}
template <typename F>
void ForEachRoad(F && f) const
{
for (auto const & it : m_roads)
f(it.first, it.second);
}
private:
// Map from feature id to RoadJointIds.
unordered_map<uint32_t, RoadJointIds> m_roads;
};
} // namespace routing
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