/* SPDX-FileCopyrightText: 2026 Project Tick
 * SPDX-FileContributor: Project Tick
 * SPDX-License-Identifier: GPL-3.0-or-later WITH LicenseRef-MeshMC-MMCO-Module-Exception-1.0
 *
 *   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, with the additional permission
 *   described in the MeshMC MMCO Module Exception 1.0.
 *
 *   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/>.
 *
 *   You should have received a copy of the MeshMC MMCO Module Exception 1.0
 *   along with this program.  If not, see <https://projecttick.org/licenses/>.
 *
 *  This file incorporates work covered by the following copyright and
 *  permission notice:
 *
 * Copyright 2013-2021 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 "InstanceProxyModel.h"

#include "InstanceView.h"
#include "Application.h"
#include <BaseInstance.h>
#include <icons/IconList.h>

#include <QDebug>

InstanceProxyModel::InstanceProxyModel(QObject* parent)
	: QSortFilterProxyModel(parent)
{
	m_naturalSort.setNumericMode(true);
	m_naturalSort.setCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
	// FIXME: use loaded translation as source of locale instead, hook this up
	// to translation changes
	m_naturalSort.setLocale(QLocale::system());
}

QVariant InstanceProxyModel::data(const QModelIndex& index, int role) const
{
	QVariant data = QSortFilterProxyModel::data(index, role);
	if (role == Qt::DecorationRole) {
		return QVariant(APPLICATION->icons()->getIcon(data.toString()));
	}
	return data;
}

bool InstanceProxyModel::lessThan(const QModelIndex& left,
								  const QModelIndex& right) const
{
	const QString leftCategory =
		left.data(InstanceViewRoles::GroupRole).toString();
	const QString rightCategory =
		right.data(InstanceViewRoles::GroupRole).toString();
	if (leftCategory == rightCategory) {
		return subSortLessThan(left, right);
	} else {
		// FIXME: real group sorting happens in
		// InstanceView::updateGeometries(), see LocaleString
		auto result = leftCategory.localeAwareCompare(rightCategory);
		if (result == 0) {
			return subSortLessThan(left, right);
		}
		return result < 0;
	}
}

bool InstanceProxyModel::subSortLessThan(const QModelIndex& left,
										 const QModelIndex& right) const
{
	BaseInstance* pdataLeft =
		static_cast<BaseInstance*>(left.internalPointer());
	BaseInstance* pdataRight =
		static_cast<BaseInstance*>(right.internalPointer());
	QString sortMode = APPLICATION->settings()->get("InstSortMode").toString();
	if (sortMode == "LastLaunch") {
		return pdataLeft->lastLaunch() > pdataRight->lastLaunch();
	} else {
		return m_naturalSort.compare(pdataLeft->name(), pdataRight->name()) < 0;
	}
}
