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// StatisticsSerializer.cpp
#include "Globals.h"
#include "StatisticsManager.h"
#include "StatisticsSerializer.h"
#include "NamespaceSerializer.h"
#include <json/json.h>
static auto MakeStatisticsDirectory(const std::string & WorldPath, std::string && FileName)
{
// Even though stats are shared between worlds, they are (usually) saved
// inside the folder of the default world.
// Path to the world's statistics folder.
const auto Path = WorldPath + cFile::GetPathSeparator() + "stats";
// Ensure that the directory exists.
cFile::CreateFolder(Path);
return Path + cFile::GetPathSeparator() + std::move(FileName) + ".json";
}
static void SaveStatToJSON(const StatisticsManager & Manager, Json::Value & a_Out)
{
if (Manager.Custom.empty())
{
// Avoid saving "custom": null to disk:
return;
}
auto & Custom = a_Out["custom"];
for (const auto & [Statistic, Value] : Manager.Custom)
{
Custom[NamespaceSerializer::From(Statistic).data()] = Value;
}
}
static void LoadCustomStatFromJSON(StatisticsManager & Manager, const Json::Value & a_In)
{
for (auto it = a_In.begin(); it != a_In.end(); ++it)
{
const auto & Key = it.key().asString();
const auto StatInfo = NamespaceSerializer::SplitNamespacedID(Key);
if (StatInfo.first == NamespaceSerializer::Namespace::Unknown)
{
// Ignore non-Vanilla, non-Cuberite namespaces for now:
continue;
}
const auto & StatName = StatInfo.second;
try
{
Manager.Custom[NamespaceSerializer::ToCustomStatistic(StatName)] = it->asUInt();
}
catch (const std::out_of_range &)
{
FLOGWARNING("Invalid statistic type \"{}\"", StatName);
}
catch (const Json::LogicError &)
{
FLOGWARNING("Invalid statistic value for type \"{}\"", StatName);
}
}
}
void StatisticsSerializer::Load(StatisticsManager & Manager, const std::string & WorldPath, std::string && FileName)
{
Json::Value Root;
InputFileStream(MakeStatisticsDirectory(WorldPath, std::move(FileName))) >> Root;
LoadCustomStatFromJSON(Manager, Root["stats"]["custom"]);
}
void StatisticsSerializer::Save(const StatisticsManager & Manager, const std::string & WorldPath, std::string && FileName)
{
Json::Value Root;
SaveStatToJSON(Manager, Root["stats"]);
Root["DataVersion"] = NamespaceSerializer::DataVersion();
OutputFileStream(MakeStatisticsDirectory(WorldPath, std::move(FileName))) << Root;
}
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