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/*
* jsonutils.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "jsonutils.h"
#include "../lib/filesystem/FileStream.h"
static QVariantMap JsonToMap(const JsonMap & json)
{
QVariantMap map;
for(auto & entry : json)
{
map.insert(QString::fromStdString(entry.first), JsonUtils::toVariant(entry.second));
}
return map;
}
static QVariantList JsonToList(const JsonVector & json)
{
QVariantList list;
for(auto & entry : json)
{
list.push_back(JsonUtils::toVariant(entry));
}
return list;
}
static JsonVector VariantToList(QVariantList variant)
{
JsonVector vector;
for(auto & entry : variant)
{
vector.push_back(JsonUtils::toJson(entry));
}
return vector;
}
static JsonMap VariantToMap(QVariantMap variant)
{
JsonMap map;
for(auto & entry : variant.toStdMap())
{
map[entry.first.toUtf8().data()] = JsonUtils::toJson(entry.second);
}
return map;
}
VCMI_LIB_NAMESPACE_BEGIN
namespace JsonUtils
{
QVariant toVariant(const JsonNode & node)
{
switch(node.getType())
{
case JsonNode::JsonType::DATA_NULL:
return QVariant();
case JsonNode::JsonType::DATA_BOOL:
return QVariant(node.Bool());
case JsonNode::JsonType::DATA_FLOAT:
return QVariant(node.Float());
case JsonNode::JsonType::DATA_INTEGER:
return QVariant{static_cast<qlonglong>(node.Integer())};
case JsonNode::JsonType::DATA_STRING:
return QVariant(QString::fromStdString(node.String()));
case JsonNode::JsonType::DATA_VECTOR:
return JsonToList(node.Vector());
case JsonNode::JsonType::DATA_STRUCT:
return JsonToMap(node.Struct());
}
return QVariant();
}
QVariant JsonFromFile(QString filename)
{
QFile file(filename);
if(!file.open(QFile::ReadOnly))
{
logGlobal->error("Failed to open file %s. Reason: %s", qUtf8Printable(filename), qUtf8Printable(file.errorString()));
return {};
}
const auto data = file.readAll();
JsonNode node(data.data(), data.size());
return toVariant(node);
}
JsonNode toJson(QVariant object)
{
JsonNode ret;
if(object.canConvert<QVariantMap>())
ret.Struct() = VariantToMap(object.toMap());
else if(object.canConvert<QVariantList>())
ret.Vector() = VariantToList(object.toList());
else if(object.userType() == QMetaType::QString)
ret.String() = object.toString().toUtf8().data();
else if(object.userType() == QMetaType::Bool)
ret.Bool() = object.toBool();
else if(object.canConvert<int>())
ret.Integer() = object.toInt();
else if(object.canConvert<double>())
ret.Float() = object.toFloat();
return ret;
}
void JsonToFile(QString filename, QVariant object)
{
FileStream file(qstringToPath(filename), std::ios::out | std::ios_base::binary);
file << toJson(object).toJson();
}
}
VCMI_LIB_NAMESPACE_END
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