/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop 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.

It 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.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once

namespace Core {

class Launcher {
public:
	Launcher(int argc, char *argv[]);

	static std::unique_ptr<Launcher> Create(int argc, char *argv[]);

	int exec();

	QString argumentsString() const;
	bool customWorkingDir() const {
		return _customWorkingDir;
	}

protected:
	enum class UpdaterLaunch {
		PerformUpdate,
		JustRelaunch,
	};

private:
	void prepareSettings();
	void processArguments();

	QStringList readArguments(int argc, char *argv[]) const;
	virtual base::optional<QStringList> readArgumentsHook(
			int argc,
			char *argv[]) const {
		return base::none;
	}

	void init();
	virtual void initHook() {
	}

	virtual bool launchUpdater(UpdaterLaunch action) = 0;

	int executeApplication();

	int _argc;
	char **_argv;
	QStringList _arguments;

	bool _customWorkingDir = false;

};

} // namespace Core