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#include "routing/cross_mwm_graph.hpp"
#include "routing/routing_exceptions.hpp"
#include "routing/transit_graph.hpp"
#include "indexer/data_source.hpp"
#include "indexer/scales.hpp"
#include "geometry/mercator.hpp"
#include "base/assert.hpp"
#include "base/math.hpp"
#include "base/stl_helpers.hpp"
#include "defines.hpp"
#include <algorithm>
#include <numeric>
#include <utility>
using namespace routing;
using namespace std;
namespace routing
{
CrossMwmGraph::CrossMwmGraph(shared_ptr<NumMwmIds> numMwmIds,
shared_ptr<m4::Tree<NumMwmId>> numMwmTree,
shared_ptr<VehicleModelFactoryInterface> vehicleModelFactory,
VehicleType vehicleType, CourntryRectFn const & countryRectFn,
DataSource & dataSource)
: m_dataSource(dataSource)
, m_numMwmIds(numMwmIds)
, m_numMwmTree(numMwmTree)
, m_vehicleModelFactory(vehicleModelFactory)
, m_countryRectFn(countryRectFn)
, m_crossMwmIndexGraph(dataSource, numMwmIds, vehicleType)
, m_crossMwmTransitGraph(dataSource, numMwmIds, VehicleType::Transit)
{
CHECK(m_numMwmIds, ());
CHECK(m_vehicleModelFactory, ());
CHECK_NOT_EQUAL(vehicleType, VehicleType::Transit, ());
}
bool CrossMwmGraph::IsTransition(Segment const & s, bool isOutgoing)
{
if (TransitGraph::IsTransitSegment(s))
{
return TransitCrossMwmSectionExists(s.GetMwmId())
? m_crossMwmTransitGraph.IsTransition(s, isOutgoing)
: false;
}
return CrossMwmSectionExists(s.GetMwmId()) ? m_crossMwmIndexGraph.IsTransition(s, isOutgoing)
: false;
}
void CrossMwmGraph::GetAllLoadedNeighbors(NumMwmId numMwmId,
vector<NumMwmId> & neighbors,
bool & allNeighborsHaveCrossMwmSection)
{
CHECK(m_numMwmTree, ());
m2::RectD const rect = m_countryRectFn(m_numMwmIds->GetFile(numMwmId).GetName());
allNeighborsHaveCrossMwmSection = true;
m_numMwmTree->ForEachInRect(rect, [&](NumMwmId id) {
if (id == numMwmId)
return;
MwmStatus const status = GetCrossMwmStatus(id);
if (status == MwmStatus::NotLoaded)
return;
if (status == MwmStatus::NoSection)
allNeighborsHaveCrossMwmSection = false;
neighbors.push_back(id);
});
}
void CrossMwmGraph::DeserializeTransitions(vector<NumMwmId> const & mwmIds)
{
for (auto mwmId : mwmIds)
m_crossMwmIndexGraph.LoadCrossMwmConnectorWithTransitions(mwmId);
}
void CrossMwmGraph::DeserializeTransitTransitions(vector<NumMwmId> const & mwmIds)
{
for (auto mwmId : mwmIds)
{
// Some mwms may not have cross mwm transit section.
if (TransitCrossMwmSectionExists(mwmId))
m_crossMwmTransitGraph.LoadCrossMwmConnectorWithTransitions(mwmId);
}
}
void CrossMwmGraph::GetTwins(Segment const & s, bool isOutgoing, vector<Segment> & twins)
{
CHECK(IsTransition(s, isOutgoing),
("The segment", s, "is not a transition segment for isOutgoing ==", isOutgoing));
// Note. There's an extremely rare case when a segment is ingoing and outgoing at the same time.
// |twins| is not filled for such cases. For details please see a note in
// CrossMwmGraph::GetOutgoingEdgeList().
if (IsTransition(s, !isOutgoing))
return;
twins.clear();
vector<NumMwmId> neighbors;
bool allNeighborsHaveCrossMwmSection = false;
GetAllLoadedNeighbors(s.GetMwmId(), neighbors, allNeighborsHaveCrossMwmSection);
MwmStatus const currentMwmStatus = GetCrossMwmStatus(s.GetMwmId());
CHECK_NOT_EQUAL(currentMwmStatus, MwmStatus::NotLoaded,
("Current mwm is not loaded. Mwm:", m_numMwmIds->GetFile(s.GetMwmId()),
"currentMwmStatus:", currentMwmStatus));
if (TransitGraph::IsTransitSegment(s) && TransitCrossMwmSectionExists(s.GetMwmId()))
{
DeserializeTransitTransitions(neighbors);
m_crossMwmTransitGraph.GetTwinsByCrossMwmId(s, isOutgoing, neighbors, twins);
}
else if (allNeighborsHaveCrossMwmSection && currentMwmStatus == MwmStatus::SectionExists)
{
DeserializeTransitions(neighbors);
m_crossMwmIndexGraph.GetTwinsByCrossMwmId(s, isOutgoing, neighbors, twins);
}
else
{
// TODO (@gmoryes)
// May be we should add ErrorCode about "NeedUpdateMaps" and return it here.
// but until we haven't it, lets do nothing.
return;
}
for (Segment const & t : twins)
CHECK_NOT_EQUAL(s.GetMwmId(), t.GetMwmId(), ());
}
void CrossMwmGraph::GetOutgoingEdgeList(Segment const & s, vector<SegmentEdge> & edges)
{
CHECK(IsTransition(s, false /* isEnter */),
("The segment is not a transition segment. IsTransition(", s, ", false) returns false."));
edges.clear();
if (TransitGraph::IsTransitSegment(s))
{
if (TransitCrossMwmSectionExists(s.GetMwmId()))
m_crossMwmTransitGraph.GetOutgoingEdgeList(s, edges);
return;
}
if (CrossMwmSectionExists(s.GetMwmId()))
m_crossMwmIndexGraph.GetOutgoingEdgeList(s, edges);
}
void CrossMwmGraph::Clear()
{
m_crossMwmIndexGraph.Clear();
m_crossMwmTransitGraph.Clear();
}
void CrossMwmGraph::GetTwinFeature(Segment const & segment, bool isOutgoing, vector<Segment> & twins)
{
std::vector<uint32_t> const & transitSegmentIds =
m_crossMwmIndexGraph.GetTransitSegmentId(segment.GetMwmId(), segment.GetFeatureId());
for (auto transitSegmentId : transitSegmentIds)
{
Segment const transitSegment(segment.GetMwmId(), segment.GetFeatureId(),
transitSegmentId, segment.IsForward());
if (!IsTransition(transitSegment, isOutgoing))
continue;
GetTwins(transitSegment, isOutgoing, twins);
break;
}
}
bool CrossMwmGraph::IsFeatureTransit(NumMwmId numMwmId, uint32_t featureId)
{
return m_crossMwmIndexGraph.IsFeatureTransit(numMwmId, featureId);
}
CrossMwmGraph::MwmStatus CrossMwmGraph::GetMwmStatus(NumMwmId numMwmId,
string const & sectionName) const
{
MwmSet::MwmHandle handle = m_dataSource.GetMwmHandleByCountryFile(m_numMwmIds->GetFile(numMwmId));
if (!handle.IsAlive())
return MwmStatus::NotLoaded;
MwmValue * value = handle.GetValue<MwmValue>();
CHECK(value != nullptr, ("Country file:", m_numMwmIds->GetFile(numMwmId)));
return value->m_cont.IsExist(sectionName) ? MwmStatus::SectionExists : MwmStatus::NoSection;
}
CrossMwmGraph::MwmStatus CrossMwmGraph::GetCrossMwmStatus(NumMwmId numMwmId) const
{
if (m_crossMwmIndexGraph.InCache(numMwmId))
return MwmStatus::SectionExists;
return GetMwmStatus(numMwmId, CROSS_MWM_FILE_TAG);
}
CrossMwmGraph::MwmStatus CrossMwmGraph::GetTransitCrossMwmStatus(NumMwmId numMwmId) const
{
if (m_crossMwmTransitGraph.InCache(numMwmId))
return MwmStatus::SectionExists;
return GetMwmStatus(numMwmId, TRANSIT_CROSS_MWM_FILE_TAG);
}
bool CrossMwmGraph::CrossMwmSectionExists(NumMwmId numMwmId) const
{
CrossMwmGraph::MwmStatus const status = GetCrossMwmStatus(numMwmId);
if (status == MwmStatus::NotLoaded)
MYTHROW(RoutingException, ("Mwm", m_numMwmIds->GetFile(numMwmId), "cannot be loaded."));
return status == MwmStatus::SectionExists;
}
bool CrossMwmGraph::TransitCrossMwmSectionExists(NumMwmId numMwmId) const
{
CrossMwmGraph::MwmStatus const status = GetTransitCrossMwmStatus(numMwmId);
if (status == MwmStatus::NotLoaded)
MYTHROW(RoutingException, ("Mwm", m_numMwmIds->GetFile(numMwmId), "cannot be loaded."));
return status == MwmStatus::SectionExists;
}
string DebugPrint(CrossMwmGraph::MwmStatus status)
{
switch (status)
{
case CrossMwmGraph::MwmStatus::NotLoaded: return "CrossMwmGraph::NotLoaded";
case CrossMwmGraph::MwmStatus::SectionExists: return "CrossMwmGraph::SectionExists";
case CrossMwmGraph::MwmStatus::NoSection: return "CrossMwmGraph::NoSection";
}
return string("Unknown CrossMwmGraph::MwmStatus.");
}
} // namespace routing
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