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// SPDX-License-Identifier: GPL-3.0-only
// SPDX-FileCopyrightText: 2026 Project Tick
// SPDX-FileContributor: Project Tick Team
/*
* ProjT Launcher - Minecraft Launcher
* Copyright (C) 2026 Project Tick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "JsonFormat.hpp"
#include <QJsonArray>
#include <QDateTime>
#include "Index.hpp"
#include "Json.h"
#include "Version.hpp"
#include "VersionList.hpp"
#include "minecraft/OneSixVersionFormat.h"
namespace projt::meta
{
SchemaVersion currentSchema()
{
return SchemaVersion::V1;
}
SchemaVersion detectSchemaVersion(const QJsonObject& root, bool required)
{
if (!root.contains("formatVersion"))
return required ? SchemaVersion::Unknown : SchemaVersion::V1;
QJsonValue val = root.value("formatVersion");
if (!val.isDouble())
return SchemaVersion::Unknown;
int ver = val.toInt();
return (ver == 0 || ver == 1) ? SchemaVersion::V1 : SchemaVersion::Unknown;
}
void writeSchemaVersion(QJsonObject& target, SchemaVersion version)
{
if (version != SchemaVersion::Unknown)
target.insert("formatVersion", static_cast<int>(version));
}
DependencySet parseDependencies(const QJsonObject& source, const QString& fieldName)
{
DependencySet result;
if (!source.contains(fieldName))
return result;
QJsonArray arr = Json::requireArray(source, fieldName);
for (const QJsonValue& item : arr)
{
QJsonObject depObj = Json::requireObject(item);
ComponentDependency dep;
dep.uid = Json::requireString(depObj, "uid");
dep.equalsVersion = Json::ensureString(depObj, "equals", QString());
dep.suggests = Json::ensureString(depObj, "suggests", QString());
result.insert(dep);
}
return result;
}
void writeDependencies(QJsonObject& target, const DependencySet& deps, const QString& fieldName)
{
if (deps.empty())
return;
QJsonArray arr;
for (const auto& dep : deps)
{
QJsonObject obj;
obj.insert("uid", dep.uid);
if (!dep.equalsVersion.isEmpty())
obj.insert("equals", dep.equalsVersion);
if (!dep.suggests.isEmpty())
obj.insert("suggests", dep.suggests);
arr.append(obj);
}
target.insert(fieldName, arr);
}
namespace
{
MetaVersionList::Ptr buildVersionListFromPackage(const QJsonObject& pkg)
{
QString uid = Json::requireString(pkg, "uid");
auto list = std::make_shared<MetaVersionList>(uid);
list->setDisplayName(Json::ensureString(pkg, "name", QString()));
list->setExpectedChecksum(Json::ensureString(pkg, "sha256", QString()));
return list;
}
MetaVersion::Ptr buildVersionFromJson(const QString& componentUid, const QJsonObject& obj, bool markStability)
{
QString verId = Json::requireString(obj, "version");
auto ver = std::make_shared<MetaVersion>(componentUid, verId);
QString timeStr = Json::requireString(obj, "releaseTime");
QDateTime dt = QDateTime::fromString(timeStr, Qt::ISODate);
ver->setReleaseTimestamp(dt.toMSecsSinceEpoch() / 1000);
ver->setReleaseType(Json::ensureString(obj, "type", QString()));
ver->setStable(Json::ensureBoolean(obj, QStringLiteral("recommended"), false));
ver->setVolatile(Json::ensureBoolean(obj, QStringLiteral("volatile"), false));
DependencySet deps = parseDependencies(obj, "requires");
DependencySet conflicts = parseDependencies(obj, "conflicts");
ver->setDependencies(deps, conflicts);
QString sha = Json::ensureString(obj, "sha256", QString());
if (!sha.isEmpty())
ver->setExpectedChecksum(sha);
if (markStability)
ver->markAsStableCandidate();
return ver;
}
MetaVersion::Ptr buildFullVersionFromJson(const QJsonObject& obj)
{
QString uid = Json::requireString(obj, "uid");
auto ver = buildVersionFromJson(uid, obj, false);
VersionFilePtr data =
OneSixVersionFormat::versionFileFromJson(QJsonDocument(obj),
QString("%1/%2.json").arg(uid, ver->versionId()),
obj.contains("order"));
ver->setDetailedData(data);
return ver;
}
MetaVersionList::Ptr buildVersionListFromPackageJson(const QJsonObject& obj)
{
QString uid = Json::requireString(obj, "uid");
QList<QJsonObject> versionObjects = Json::requireIsArrayOf<QJsonObject>(obj, "versions");
QList<MetaVersion::Ptr> versions;
versions.reserve(versionObjects.size());
for (const QJsonObject& vObj : versionObjects)
versions.append(buildVersionFromJson(uid, vObj, true));
auto list = std::make_shared<MetaVersionList>(uid);
list->setDisplayName(Json::ensureString(obj, "name", QString()));
list->setVersionEntries(versions);
return list;
}
std::shared_ptr<MetaIndex> buildIndexFromJson(const QJsonObject& obj)
{
QList<QJsonObject> packages = Json::requireIsArrayOf<QJsonObject>(obj, "packages");
QList<MetaVersionList::Ptr> components;
components.reserve(packages.size());
for (const QJsonObject& pkg : packages)
components.append(buildVersionListFromPackage(pkg));
return std::make_shared<MetaIndex>(components);
}
} // anonymous namespace
void loadIndexFromJson(const QJsonObject& json, MetaIndex* index)
{
SchemaVersion schema = detectSchemaVersion(json);
if (schema == SchemaVersion::V1)
index->mergeWith(buildIndexFromJson(json));
else
throw MetaParseError(QObject::tr("Unsupported metadata schema version"));
}
void loadVersionListFromJson(const QJsonObject& json, MetaVersionList* list)
{
SchemaVersion schema = detectSchemaVersion(json);
if (schema == SchemaVersion::V1)
list->mergeWith(buildVersionListFromPackageJson(json));
else
throw MetaParseError(QObject::tr("Unsupported metadata schema version"));
}
void loadVersionFromJson(const QJsonObject& json, MetaVersion* version)
{
SchemaVersion schema = detectSchemaVersion(json);
if (schema == SchemaVersion::V1)
version->updateFrom(buildFullVersionFromJson(json));
else
throw MetaParseError(QObject::tr("Unsupported metadata schema version"));
}
} // namespace projt::meta
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