/* 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 "PreLaunchCommand.h"
#include <launch/LaunchTask.h>

PreLaunchCommand::PreLaunchCommand(LaunchTask* parent) : LaunchStep(parent)
{
	auto instance = m_parent->instance();
	m_command = instance->getPreLaunchCommand();
	m_process.setProcessEnvironment(instance->createEnvironment());
	connect(&m_process, &LoggedProcess::log, this, &PreLaunchCommand::logLines);
	connect(&m_process, &LoggedProcess::stateChanged, this,
			&PreLaunchCommand::on_state);
}

void PreLaunchCommand::executeTask()
{
	// FIXME: where to put this?
	QString prelaunch_cmd = m_parent->substituteVariables(m_command);
	emit logLine(tr("Running Pre-Launch command: %1").arg(prelaunch_cmd),
				 MessageLevel::MeshMC);
	m_process.start(prelaunch_cmd);
}

void PreLaunchCommand::on_state(LoggedProcess::State state)
{
	auto getError = [&]() {
		return tr("Pre-Launch command failed with code %1.\n\n")
			.arg(m_process.exitCode());
	};
	switch (state) {
		case LoggedProcess::Aborted:
		case LoggedProcess::Crashed:
		case LoggedProcess::FailedToStart: {
			auto error = getError();
			emit logLine(error, MessageLevel::Fatal);
			emitFailed(error);
			return;
		}
		case LoggedProcess::Finished: {
			if (m_process.exitCode() != 0) {
				auto error = getError();
				emit logLine(error, MessageLevel::Fatal);
				emitFailed(error);
			} else {
				emit logLine(tr("Pre-Launch command ran successfully.\n\n"),
							 MessageLevel::MeshMC);
				emitSucceeded();
			}
		}
		default:
			break;
	}
}

void PreLaunchCommand::setWorkingDirectory(const QString& wd)
{
	m_process.setWorkingDirectory(wd);
}

bool PreLaunchCommand::abort()
{
	auto state = m_process.state();
	if (state == LoggedProcess::Running || state == LoggedProcess::Starting) {
		m_process.kill();
	}
	return true;
}
