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#pragma once
#include "routing/route.hpp"
#include "routing/routing_session.hpp"
#include "routing/segment.hpp"
#include "routing/speed_camera.hpp"
#include "coding/file_container.hpp"
#include "coding/file_writer.hpp"
#include "coding/point_coding.hpp"
#include "coding/reader.hpp"
#include "coding/varint.hpp"
#include "coding/write_to_sink.hpp"
#include "geometry/point2d.hpp"
#include "base/assert.hpp"
#include <cstdint>
#include <limits>
#include <map>
#include <string>
#include <utility>
#include <vector>
namespace routing
{
static uint8_t constexpr kMaxCameraSpeedKmpH = std::numeric_limits<uint8_t>::max();
/// \brief |m_featureId| and |m_segmentId| identify the place where the camera is located.
/// |m_coef| is a factor [0, 1] where the camera is placed at the segment. |m_coef| == 0
/// means the camera is placed at the beginning of the segment.
struct SpeedCameraMwmPosition
{
SpeedCameraMwmPosition() = default;
SpeedCameraMwmPosition(uint32_t fId, uint32_t sId, double k)
: m_featureId(fId), m_segmentId(sId), m_coef(k) {}
uint32_t m_featureId = 0;
uint32_t m_segmentId = 0;
double m_coef = 0.0;
};
// Don't touch the order of enum (this is the part of mwm).
enum class SpeedCameraDirection
{
Unknown = 0,
Forward = 1,
Backward = 2,
Both = 3
};
struct SpeedCameraMetadata
{
SpeedCameraMetadata() = default;
SpeedCameraMetadata(m2::PointD const & center, uint8_t maxSpeed,
std::vector<routing::SpeedCameraMwmPosition> && ways)
: m_center(center), m_maxSpeedKmPH(maxSpeed), m_ways(std::move(ways)) {}
m2::PointD m_center;
uint8_t m_maxSpeedKmPH = 0;
std::vector<routing::SpeedCameraMwmPosition> m_ways;
SpeedCameraDirection m_direction = SpeedCameraDirection::Unknown;
};
class SpeedCameraMwmHeader
{
public:
static uint32_t constexpr kLatestVersion = 0;
void SetVersion(uint32_t version) { m_version = version; }
void SetAmount(uint32_t amount) { m_amount = amount; }
uint32_t GetAmount() const { return m_amount; }
template <typename T>
void Serialize(T & sink) const
{
WriteToSink(sink, m_version);
WriteToSink(sink, m_amount);
}
template <typename T>
void Deserialize(T & sink)
{
ReadPrimitiveFromSource(sink, m_version);
ReadPrimitiveFromSource(sink, m_amount);
}
bool IsValid() const { return m_version <= kLatestVersion; }
private:
uint32_t m_version = 0;
uint32_t m_amount = 0;
};
static_assert(sizeof(SpeedCameraMwmHeader) == 8, "Strange size of speed camera section header");
struct SegmentCoord
{
SegmentCoord() = default;
SegmentCoord(uint32_t fId, uint32_t sId) : m_featureId(fId), m_segmentId(sId) {}
bool operator<(SegmentCoord const & rhs) const
{
if (m_featureId != rhs.m_featureId)
return m_featureId < rhs.m_featureId;
return m_segmentId < rhs.m_segmentId;
}
uint32_t m_featureId = 0;
uint32_t m_segmentId = 0;
};
void SerializeSpeedCamera(FileWriter & writer, SpeedCameraMetadata const & data,
uint32_t & prevFeatureId);
template <typename Reader>
std::pair<SegmentCoord, RouteSegment::SpeedCamera> DeserializeSpeedCamera(
ReaderSource<Reader> & src, uint32_t & prevFeatureId)
{
auto featureId = ReadVarUint<uint32_t>(src);
featureId += prevFeatureId; // delta coding
prevFeatureId = featureId;
auto const segmentId = ReadVarUint<uint32_t>(src);
uint32_t coefInt = 0;
ReadPrimitiveFromSource(src, coefInt);
double const coef = Uint32ToDouble(coefInt, 0.0 /* min */, 1.0 /* max */, 32 /* bits */);
uint8_t speed = 0;
ReadPrimitiveFromSource(src, speed);
CHECK_LESS(speed, kMaxCameraSpeedKmpH, ());
if (speed == 0)
speed = routing::SpeedCameraOnRoute::kNoSpeedInfo;
// We don't use direction of camera, because of bad data in OSM.
UNUSED_VALUE(ReadPrimitiveFromSource<uint8_t>(src)); // direction
// Number of time conditions of camera.
auto const conditionsNumber = ReadVarUint<uint32_t>(src);
CHECK_EQUAL(conditionsNumber, 0,
("Number of conditions should be 0, non zero number is not implemented now"));
return {{featureId, segmentId} /* SegmentCoord */,
{coef, speed} /* RouteSegment::SpeedCamera */};
}
template <typename Reader>
void DeserializeSpeedCamsFromMwm(
ReaderSource<Reader> & src,
std::map<SegmentCoord, std::vector<RouteSegment::SpeedCamera>> & map)
{
SpeedCameraMwmHeader header;
header.Deserialize(src);
CHECK(header.IsValid(), ("Bad header of speed cam section"));
uint32_t const amount = header.GetAmount();
SegmentCoord segment;
RouteSegment::SpeedCamera speedCamera;
uint32_t prevFeatureId = 0;
for (uint32_t i = 0; i < amount; ++i)
{
std::tie(segment, speedCamera) = DeserializeSpeedCamera(src, prevFeatureId);
map[segment].emplace_back(speedCamera);
}
}
std::string DebugPrint(SegmentCoord const & segment);
} // namespace routing
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