// SPDX-License-Identifier: GPL-3.0-only AND Apache-2.0
// 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.
 *
 * === Upstream License Block (Do Not Modify) ==============================
 *
 * 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.
 * ======================================================================== */

#pragma once

#include <QAbstractListModel>
#include <memory>
#include <optional>

struct Language;

class TranslationsModel : public QAbstractListModel
{
	Q_OBJECT
  public:
	explicit TranslationsModel(QString path, QObject* parent = 0);
	virtual ~TranslationsModel();

	QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
	QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
	int rowCount(const QModelIndex& parent = QModelIndex()) const override;
	int columnCount(const QModelIndex& parent) const override;

	bool selectLanguage(QString key);
	void updateLanguage(QString key);
	QModelIndex selectedIndex();
	QString selectedLanguage();

	void downloadIndex();
	void setUseSystemLocale(bool useSystemLocale);

  private:
	QList<Language>::Iterator findLanguage(const QString& key);
	std::optional<Language> findLanguageAsOptional(const QString& key);
	void reloadLocalFiles();
	void downloadTranslation(QString key);
	void downloadNext();

	// hide copy constructor
	TranslationsModel(const TranslationsModel&) = delete;
	// hide assign op
	TranslationsModel& operator=(const TranslationsModel&) = delete;

  private slots:
	void indexReceived();
	void indexFailed(QString reason);
	void dlFailed(QString reason);
	void dlGood();
	void translationDirChanged(const QString& path);

  private: /* data */
	struct Private;
	std::unique_ptr<Private> d;
};