Add 'meshmc/' from commit 'fad6a1066616b69d7f5fef01178efdf014c59537'

git-subtree-dir: meshmc
git-subtree-mainline: 934382c8a1ce738589dee9ee0f14e1cec812770e
git-subtree-split: fad6a1066616b69d7f5fef01178efdf014c59537

1 files changed, 285 insertions, 0 deletions

diff --git a/meshmc/launcher/meta/VersionList.cpp b/meshmc/launcher/meta/VersionList.cpp
new file mode 100644
index 0000000000..1bb150616a
--- /dev/null
+++ b/meshmc/launcher/meta/VersionList.cpp
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+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   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, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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, see <https://www.gnu.org/licenses/>.
+ *
+ *  This file incorporates work covered by the following copyright and
+ *  permission notice:
+ *
+ * Copyright 2015-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "VersionList.h"
+
+#include <QDateTime>
+
+#include "Version.h"
+#include "JsonFormat.h"
+#include "Version.h"
+
+namespace Meta
+{
+	VersionList::VersionList(const QString& uid, QObject* parent)
+		: BaseVersionList(parent), m_uid(uid)
+	{
+		setObjectName("Version list: " + uid);
+	}
+
+	Task::Ptr VersionList::getLoadTask()
+	{
+		load(Net::Mode::Online);
+		return getCurrentTask();
+	}
+
+	bool VersionList::isLoaded()
+	{
+		return BaseEntity::isLoaded();
+	}
+
+	const BaseVersionPtr VersionList::at(int i) const
+	{
+		return m_versions.at(i);
+	}
+	int VersionList::count() const
+	{
+		return m_versions.size();
+	}
+
+	void VersionList::sortVersions()
+	{
+		beginResetModel();
+		std::sort(m_versions.begin(), m_versions.end(),
+				  [](const VersionPtr& a, const VersionPtr& b) {
+					  return *a.get() < *b.get();
+				  });
+		endResetModel();
+	}
+
+	QVariant VersionList::data(const QModelIndex& index, int role) const
+	{
+		if (!index.isValid() || index.row() < 0 ||
+			index.row() >= m_versions.size() || index.parent().isValid()) {
+			return QVariant();
+		}
+
+		VersionPtr version = m_versions.at(index.row());
+
+		switch (role) {
+			case VersionPointerRole:
+				return QVariant::fromValue(
+					std::dynamic_pointer_cast<BaseVersion>(version));
+			case VersionRole:
+			case VersionIdRole:
+				return version->version();
+			case ParentVersionRole: {
+				// FIXME: HACK: this should be generic and be replaced by
+				// something else. Anything that is a hard 'equals' dep is a
+				// 'parent uid'.
+				auto& reqs = version->requirements();
+				auto iter = std::find_if(reqs.begin(), reqs.end(),
+										 [](const Require& req) {
+											 return req.uid == "net.minecraft";
+										 });
+				if (iter != reqs.end()) {
+					return (*iter).equalsVersion;
+				}
+				return QVariant();
+			}
+			case TypeRole:
+				return version->type();
+
+			case UidRole:
+				return version->uid();
+			case TimeRole:
+				return version->time();
+			case RequiresRole:
+				return QVariant::fromValue(version->requirements());
+			case SortRole:
+				return version->rawTime();
+			case VersionPtrRole:
+				return QVariant::fromValue(version);
+			case RecommendedRole:
+				return version->isRecommended();
+			// FIXME: this should be determined in whatever view/proxy is
+			// used... case LatestRole: return version == getLatestStable();
+			default:
+				return QVariant();
+		}
+	}
+
+	BaseVersionList::RoleList VersionList::providesRoles() const
+	{
+		return {VersionPointerRole, VersionRole,  VersionIdRole,
+				ParentVersionRole,	TypeRole,	  UidRole,
+				TimeRole,			RequiresRole, SortRole,
+				RecommendedRole,	LatestRole,	  VersionPtrRole};
+	}
+
+	QHash<int, QByteArray> VersionList::roleNames() const
+	{
+		QHash<int, QByteArray> roles = BaseVersionList::roleNames();
+		roles.insert(UidRole, "uid");
+		roles.insert(TimeRole, "time");
+		roles.insert(SortRole, "sort");
+		roles.insert(RequiresRole, "requires");
+		return roles;
+	}
+
+	QString VersionList::localFilename() const
+	{
+		return m_uid + "/index.json";
+	}
+
+	QString VersionList::humanReadable() const
+	{
+		return m_name.isEmpty() ? m_uid : m_name;
+	}
+
+	VersionPtr VersionList::getVersion(const QString& version)
+	{
+		VersionPtr out = m_lookup.value(version, nullptr);
+		if (!out) {
+			out = std::make_shared<Version>(m_uid, version);
+			m_lookup[version] = out;
+		}
+		return out;
+	}
+
+	void VersionList::setName(const QString& name)
+	{
+		m_name = name;
+		emit nameChanged(name);
+	}
+
+	void VersionList::setVersions(const QVector<VersionPtr>& versions)
+	{
+		beginResetModel();
+		m_versions = versions;
+		std::sort(m_versions.begin(), m_versions.end(),
+				  [](const VersionPtr& a, const VersionPtr& b) {
+					  return a->rawTime() > b->rawTime();
+				  });
+		for (int i = 0; i < m_versions.size(); ++i) {
+			m_lookup.insert(m_versions.at(i)->version(), m_versions.at(i));
+			setupAddedVersion(i, m_versions.at(i));
+		}
+
+		// FIXME: this is dumb, we have 'recommended' as part of the metadata
+		// already...
+		auto recommendedIt = std::find_if(
+			m_versions.constBegin(), m_versions.constEnd(),
+			[](const VersionPtr& ptr) { return ptr->type() == "release"; });
+		m_recommended =
+			recommendedIt == m_versions.constEnd() ? nullptr : *recommendedIt;
+		endResetModel();
+	}
+
+	void VersionList::parse(const QJsonObject& obj)
+	{
+		parseVersionList(obj, this);
+	}
+
+	// FIXME: this is dumb, we have 'recommended' as part of the metadata
+	// already...
+	static const Meta::VersionPtr& getBetterVersion(const Meta::VersionPtr& a,
+													const Meta::VersionPtr& b)
+	{
+		if (!a)
+			return b;
+		if (!b)
+			return a;
+		if (a->type() == b->type()) {
+			// newer of same type wins
+			return (a->rawTime() > b->rawTime() ? a : b);
+		}
+		// 'release' type wins
+		return (a->type() == "release" ? a : b);
+	}
+
+	void VersionList::mergeFromIndex(const VersionListPtr& other)
+	{
+		if (m_name != other->m_name) {
+			setName(other->m_name);
+		}
+	}
+
+	void VersionList::merge(const VersionListPtr& other)
+	{
+		if (m_name != other->m_name) {
+			setName(other->m_name);
+		}
+
+		// TODO: do not reset the whole model. maybe?
+		beginResetModel();
+		m_versions.clear();
+		if (other->m_versions.isEmpty()) {
+			qWarning() << "Empty list loaded ...";
+		}
+		for (const VersionPtr& version : other->m_versions) {
+			// we already have the version. merge the contents
+			if (m_lookup.contains(version->version())) {
+				m_lookup.value(version->version())->mergeFromList(version);
+			} else {
+				m_lookup.insert(version->uid(), version);
+			}
+			// connect it.
+			setupAddedVersion(m_versions.size(), version);
+			m_versions.append(version);
+			m_recommended = getBetterVersion(m_recommended, version);
+		}
+		endResetModel();
+	}
+
+	void VersionList::setupAddedVersion(const int row,
+										const VersionPtr& version)
+	{
+		// FIXME: do not disconnect from everythin, disconnect only the lambdas
+		// here
+		version->disconnect();
+		connect(version.get(), &Version::requiresChanged, this, [this, row]() {
+			emit dataChanged(index(row), index(row),
+							 QVector<int>() << RequiresRole);
+		});
+		connect(version.get(), &Version::timeChanged, this, [this, row]() {
+			emit dataChanged(index(row), index(row),
+							 QVector<int>() << TimeRole << SortRole);
+		});
+		connect(version.get(), &Version::typeChanged, this, [this, row]() {
+			emit dataChanged(index(row), index(row),
+							 QVector<int>() << TypeRole);
+		});
+	}
+
+	BaseVersionPtr VersionList::getRecommended() const
+	{
+		return m_recommended;
+	}
+
+} // namespace Meta