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#include "generator/restriction_writer.hpp"
#include "generator/intermediate_elements.hpp"
#include "generator/osm_element.hpp"
#include "generator/restriction_collector.hpp"
#include "routing/restrictions_serialization.hpp"
#include "base/assert.hpp"
#include "base/geo_object_id.hpp"
#include "base/logging.hpp"
#include <algorithm>
#include <fstream>
#include <string>
#include <utility>
#include <vector>
namespace
{
using namespace routing;
std::vector<std::pair<std::string, Restriction::Type>> const kRestrictionTypes ={
{"no_entry", Restriction::Type::No},
{"no_exit", Restriction::Type::No},
{"no_left_turn", Restriction::Type::No},
{"no_right_turn", Restriction::Type::No},
{"no_straight_on", Restriction::Type::No},
{"no_u_turn", Restriction::Type::No},
{"only_left_turn", Restriction::Type::Only},
{"only_right_turn", Restriction::Type::Only},
{"only_straight_on", Restriction::Type::Only},
{"only_u_turn", Restriction::Type::Only}
};
/// \brief Converts restriction type form string to RestrictionCollector::Type.
/// \returns true if conversion was successful and false otherwise.
bool TagToType(std::string const & tag, Restriction::Type & type)
{
auto const it = std::find_if(kRestrictionTypes.cbegin(), kRestrictionTypes.cend(),
[&tag](std::pair<std::string, Restriction::Type> const & v) {
return v.first == tag;
});
if (it == kRestrictionTypes.cend())
return false; // Unsupported restriction type.
type = it->second;
return true;
}
std::vector<RelationElement::Member> GetMembersByTag(RelationElement const & relationElement,
std::string const & tag)
{
std::vector<RelationElement::Member> result;
for (auto const & member : relationElement.ways)
{
if (member.second == tag)
result.emplace_back(member);
}
for (auto const & member : relationElement.nodes)
{
if (member.second == tag)
result.emplace_back(member);
}
return result;
};
OsmElement::EntityType GetType(RelationElement const & relationElement, uint64_t osmId)
{
for (auto const & member : relationElement.ways)
{
if (member.first == osmId)
return OsmElement::EntityType::Way;
}
for (auto const & member : relationElement.nodes)
{
if (member.first == osmId)
return OsmElement::EntityType::Node;
}
UNREACHABLE();
};
} // namespace
namespace routing
{
std::string const RestrictionWriter::kNodeString = "node";
std::string const RestrictionWriter::kWayString = "way";
RestrictionWriter::RestrictionWriter(std::string const & fullPath,
generator::cache::IntermediateDataReader const & cache)
: m_cache(cache)
{
Open(fullPath);
}
//static
RestrictionWriter::ViaType RestrictionWriter::ConvertFromString(std::string const & str)
{
if (str == kNodeString)
return ViaType::Node;
else if (str == kWayString)
return ViaType::Way;
CHECK(false, ("Bad via type in restrictons:", str));
UNREACHABLE();
}
void RestrictionWriter::Open(std::string const & fullPath)
{
LOG(LINFO, ("Saving road restrictions in osm id terms to", fullPath));
m_stream.open(fullPath, std::ofstream::out);
if (!IsOpened())
LOG(LINFO, ("Cannot open file", fullPath));
m_stream << std::setprecision(20);
}
void RestrictionWriter::CollectRelation(RelationElement const & relationElement)
{
if (!IsOpened())
{
LOG(LWARNING, ("Tried to write to a closed restrictions writer"));
return;
}
if (relationElement.GetType() != "restriction")
return;
auto const from = GetMembersByTag(relationElement, "from");
auto const to = GetMembersByTag(relationElement, "to");
auto const via = GetMembersByTag(relationElement, "via");
// TODO (@gmoryes) |from| and |to| can have size more than 1 in case of "no_entry", "no_exit"
if (from.size() != 1 || to.size() != 1 || via.empty())
return;
uint64_t const fromOsmId = from.back().first;
uint64_t const toOsmId = to.back().first;
// Either single node is marked as via or one or more ways are marked as via.
// https://wiki.openstreetmap.org/wiki/Relation:restriction#Members
if (via.size() != 1)
{
bool const allMembersAreWays =
std::all_of(via.begin(), via.end(),
[&](auto const & member)
{
return GetType(relationElement, member.first) == OsmElement::EntityType::Way;
});
if (!allMembersAreWays)
return;
}
// Extracting type of restriction.
auto const tagIt = relationElement.tags.find("restriction");
if (tagIt == relationElement.tags.end())
return;
Restriction::Type type = Restriction::Type::No;
if (!TagToType(tagIt->second, type))
return;
auto const viaType =
GetType(relationElement, via.back().first) == OsmElement::EntityType::Node ? ViaType::Node
: ViaType::Way;
auto const printHeader = [&]() {
m_stream << DebugPrint(type) << "," << DebugPrint(viaType) << ",";
};
if (viaType == ViaType::Way)
{
printHeader();
m_stream << fromOsmId << ",";
for (auto const & viaMember : via)
m_stream << viaMember.first << ",";
}
else
{
double y = 0.0;
double x = 0.0;
uint64_t const viaNodeOsmId = via.back().first;
if (!m_cache.GetNode(viaNodeOsmId, y, x))
return;
printHeader();
m_stream << x << "," << y << ",";
m_stream << fromOsmId << ",";
}
m_stream << toOsmId << '\n';
}
bool RestrictionWriter::IsOpened() const { return m_stream && m_stream.is_open(); }
std::string DebugPrint(RestrictionWriter::ViaType const & type)
{
switch (type)
{
case RestrictionWriter::ViaType::Node: return RestrictionWriter::kNodeString;
case RestrictionWriter::ViaType::Way: return RestrictionWriter::kWayString;
case RestrictionWriter::ViaType::Count: UNREACHABLE();
}
UNREACHABLE();
}
} // namespace routing
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