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#include "editor/editor_notes.hpp"
#include "platform/platform.hpp"
#include "coding/internal/file_data.hpp"
#include "geometry/mercator.hpp"
#include "base/assert.hpp"
#include "base/logging.hpp"
#include "base/string_utils.hpp"
#include "base/timer.hpp"
#include <chrono>
#include <future>
#include "3party/pugixml/src/pugixml.hpp"
namespace
{
bool LoadFromXml(pugi::xml_document const & xml, std::list<editor::Note> & notes,
uint32_t & uploadedNotesCount)
{
uint64_t notesCount;
auto const root = xml.child("notes");
if (!strings::to_uint64(root.attribute("uploadedNotesCount").value(), notesCount))
{
LOG(LERROR, ("Can't read uploadedNotesCount from file."));
uploadedNotesCount = 0;
}
else
{
uploadedNotesCount = static_cast<uint32_t>(notesCount);
}
for (auto const & xNode : root.select_nodes("note"))
{
ms::LatLon latLon;
auto const node = xNode.node();
auto const lat = node.attribute("lat");
if (!lat || !strings::to_double(lat.value(), latLon.m_lat))
continue;
auto const lon = node.attribute("lon");
if (!lon || !strings::to_double(lon.value(), latLon.m_lon))
continue;
auto const text = node.attribute("text");
if (!text)
continue;
notes.emplace_back(latLon, text.value());
}
return true;
}
void SaveToXml(std::list<editor::Note> const & notes, pugi::xml_document & xml,
uint32_t const uploadedNotesCount)
{
auto constexpr kDigitsAfterComma = 7;
auto root = xml.append_child("notes");
root.append_attribute("uploadedNotesCount") = uploadedNotesCount;
for (auto const & note : notes)
{
auto node = root.append_child("note");
node.append_attribute("lat") =
strings::to_string_dac(note.m_point.m_lat, kDigitsAfterComma).data();
node.append_attribute("lon") =
strings::to_string_dac(note.m_point.m_lon, kDigitsAfterComma).data();
node.append_attribute("text") = note.m_note.data();
}
}
/// Not thread-safe, use only for initialization.
bool Load(std::string const & fileName, std::list<editor::Note> & notes,
uint32_t & uploadedNotesCount)
{
std::string content;
try
{
auto const reader = GetPlatform().GetReader(fileName);
reader->ReadAsString(content);
}
catch (FileAbsentException const &)
{
// It's normal if no notes file is present.
return true;
}
catch (Reader::Exception const & e)
{
LOG(LERROR, ("Can't process file.", fileName, e.Msg()));
return false;
}
pugi::xml_document xml;
if (!xml.load_buffer(content.data(), content.size()))
{
LOG(LERROR, ("Can't load notes, XML is ill-formed.", content));
return false;
}
notes.clear();
if (!LoadFromXml(xml, notes, uploadedNotesCount))
{
LOG(LERROR, ("Can't load notes, file is ill-formed.", content));
return false;
}
return true;
}
/// Not thread-safe, use synchronization.
bool Save(std::string const & fileName, std::list<editor::Note> const & notes,
uint32_t const uploadedNotesCount)
{
pugi::xml_document xml;
SaveToXml(notes, xml, uploadedNotesCount);
return base::WriteToTempAndRenameToFile(fileName, [&xml](std::string const & fileName) {
return xml.save_file(fileName.data(), " ");
});
}
} // namespace
namespace editor
{
std::shared_ptr<Notes> Notes::MakeNotes(std::string const & fileName, bool const fullPath)
{
return std::shared_ptr<Notes>(
new Notes(fullPath ? fileName : GetPlatform().WritablePathForFile(fileName)));
}
Notes::Notes(std::string const & fileName) : m_fileName(fileName)
{
Load(m_fileName, m_notes, m_uploadedNotesCount);
}
void Notes::CreateNote(ms::LatLon const & latLon, std::string const & text)
{
if (text.empty())
{
LOG(LWARNING, ("Attempt to create empty note"));
return;
}
if (!mercator::ValidLat(latLon.m_lat) || !mercator::ValidLon(latLon.m_lon))
{
LOG(LWARNING, ("A note attached to a wrong latLon", latLon));
return;
}
std::lock_guard<std::mutex> g(m_mu);
auto const it = std::find_if(m_notes.begin(), m_notes.end(), [&latLon, &text](Note const & note) {
return latLon.EqualDxDy(note.m_point, kTolerance) && text == note.m_note;
});
// No need to add the same note. It works in case when saved note are not uploaded yet.
if (it != m_notes.end())
return;
m_notes.emplace_back(latLon, text);
Save(m_fileName, m_notes, m_uploadedNotesCount);
}
void Notes::Upload(osm::OsmOAuth const & auth)
{
// Capture self to keep it from destruction until this thread is done.
auto const self = shared_from_this();
auto const doUpload = [self, auth]() {
std::unique_lock<std::mutex> ulock(self->m_mu);
// Size of m_notes is decreased only in this method.
auto & notes = self->m_notes;
size_t size = notes.size();
osm::ServerApi06 api(auth);
while (size > 0)
{
try
{
ulock.unlock();
auto const id = api.CreateNote(notes.front().m_point, notes.front().m_note);
ulock.lock();
LOG(LINFO, ("A note uploaded with id", id));
}
catch (osm::ServerApi06::ServerApi06Exception const & e)
{
LOG(LERROR, ("Can't upload note.", e.Msg()));
// We believe that next iterations will suffer from the same error.
return;
}
notes.pop_front();
--size;
++self->m_uploadedNotesCount;
Save(self->m_fileName, self->m_notes, self->m_uploadedNotesCount);
}
};
static auto future = std::async(std::launch::async, doUpload);
auto const status = future.wait_for(std::chrono::milliseconds(0));
if (status == std::future_status::ready)
future = std::async(std::launch::async, doUpload);
}
std::list<Note> Notes::GetNotes() const
{
std::lock_guard<std::mutex> g(m_mu);
return m_notes;
}
size_t Notes::NotUploadedNotesCount() const
{
std::lock_guard<std::mutex> g(m_mu);
return m_notes.size();
}
size_t Notes::UploadedNotesCount() const
{
std::lock_guard<std::mutex> g(m_mu);
return m_uploadedNotesCount;
}
} // namespace editor
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