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#include "openlr/openlr_sample.hpp"
#include "indexer/index.hpp"
#include "base/string_utils.hpp"
#include <cerrno>
#include <cstring>
#include <fstream>
namespace
{
void ParseMWMSegments(std::string const & line, uint32_t const lineNumber,
std::vector<openlr::SampleItem::MWMSegment> & segments, Index const & index)
{
std::vector<string> parts;
strings::ParseCSVRow(line, '=', parts);
for (auto const & seg : parts)
{
std::vector<string> segParts;
strings::ParseCSVRow(seg, '-', segParts);
CHECK_EQUAL(segParts.size(), 5, ());
auto const mwmId = index.GetMwmIdByCountryFile(platform::CountryFile(segParts[0]));
uint32_t featureIndex;
if (!strings::to_uint(segParts[1], featureIndex))
MYTHROW(openlr::SamplePoolLoadError, ("Can't parse MWMSegment", seg, "line:", lineNumber));
uint32_t segId;
if (!strings::to_uint(segParts[2], segId))
MYTHROW(openlr::SamplePoolLoadError, ("Can't parse MWMSegment", seg, "line:", lineNumber));
bool const isForward = (segParts[3] == "fwd");
double length = 0;
if (!strings::to_double(segParts[4], length))
MYTHROW(openlr::SamplePoolLoadError, ("Can't parse MWMSegment", seg, "line:", lineNumber));
segments.push_back({FeatureID(mwmId, featureIndex), segId, isForward, length});
}
}
void ParseSampleItem(std::string const & line, uint32_t const lineNumber, openlr::SampleItem & item,
Index const & index)
{
std::vector<string> parts;
strings::ParseCSVRow(line, '\t', parts);
CHECK_GREATER_OR_EQUAL(parts.size(), 2, ());
CHECK_LESS_OR_EQUAL(parts.size(), 3, ());
auto nextFieldIndex = 0;
if (parts.size() == 3)
{
item.m_evaluation = openlr::ParseItemEvaluation(parts[nextFieldIndex]);
++nextFieldIndex;
}
else
{
item.m_evaluation = openlr::ItemEvaluation::Unevaluated;
}
if (!strings::to_uint(parts[nextFieldIndex], item.m_partnerSegmentId.Get()))
{
MYTHROW(openlr::SamplePoolLoadError, ("Error: can't parse field", nextFieldIndex,
"(number expected) in line:", lineNumber));
}
++nextFieldIndex;
ParseMWMSegments(parts[nextFieldIndex], lineNumber, item.m_segments, index);
}
} // namepsace
namespace openlr
{
ItemEvaluation ParseItemEvaluation(std::string const & s)
{
if (s == "Unevaluated")
return openlr::ItemEvaluation::Unevaluated;
if (s == "Positive")
return openlr::ItemEvaluation::Positive;
if (s == "Negative")
return openlr::ItemEvaluation::Negative;
if (s == "RelPositive")
return openlr::ItemEvaluation::RelPositive;
if (s == "RelNegative")
return openlr::ItemEvaluation::RelNegative;
if (s == "Ignore")
return openlr::ItemEvaluation::Ignore;
return openlr::ItemEvaluation::NotAValue;
}
std::string ToString(ItemEvaluation const e)
{
switch (e)
{
case openlr::ItemEvaluation::Unevaluated: return "Unevaluated";
case openlr::ItemEvaluation::Positive: return "Positive";
case openlr::ItemEvaluation::Negative: return "Negative";
case openlr::ItemEvaluation::RelPositive: return "RelPositive";
case openlr::ItemEvaluation::RelNegative: return "RelNegative";
case openlr::ItemEvaluation::Ignore: return "Ignore";
default: return "NotAValue";
}
}
SamplePool LoadSamplePool(std::string const & fileName, Index const & index)
{
std::ifstream sample(fileName);
if (!sample.is_open())
MYTHROW(SamplePoolLoadError, ("Can't read from file", fileName, strerror(errno)));
SamplePool pool;
for (struct {uint32_t lineNumber = 0; string line; } st; getline(sample, st.line); ++st.lineNumber)
{
SampleItem item = SampleItem::Uninitialized();
ParseSampleItem(st.line, st.lineNumber, item, index);
pool.push_back(item);
}
return pool;
}
void SaveSamplePool(std::string const & fileName, SamplePool const & sample,
bool const saveEvaluation)
{
LOG(LDEBUG, ("Saving sample to file:", fileName));
std::ofstream out(fileName);
if (!out.is_open())
MYTHROW(SamplePoolSaveError, ("Can't write to file", fileName, strerror(errno)));
out << std::fixed; // Avoid scientific notation cause '-' is used as fields separator.
for (auto const & item : sample)
{
if (saveEvaluation)
out << ToString(item.m_evaluation) << '\t';
out << item.m_partnerSegmentId.Get() << '\t';
for (auto it = begin(item.m_segments); it != end(item.m_segments); ++it)
{
auto const & fid = it->m_fid;
out << fid.m_mwmId.GetInfo()->GetCountryName() << '-'
<< fid.m_index << '-' << it->m_segId
<< '-' << (it->m_isForward ? "fwd" : "bwd")
<< '-' << it->m_length;
if (next(it) != end(item.m_segments))
out << '=';
}
out << endl;
}
if (out.fail())
MYTHROW(SamplePoolSaveError, ("An error occured while writing file", fileName, strerror(errno)));
}
} // namespace openlr
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