pollymc/launcher/ResourceDownloadTask.cpp

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// SPDX-License-Identifier: GPL-3.0-only
/*
* Prism Launcher - Minecraft Launcher
* Copyright (c) 2022-2023 flowln <flowlnlnln@gmail.com>
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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, see <https://www.gnu.org/licenses/>.
*/
#include "ResourceDownloadTask.h"
#include "Application.h"
#include "minecraft/mod/ModFolderModel.h"
#include "minecraft/mod/ResourceFolderModel.h"
ResourceDownloadTask::ResourceDownloadTask(ModPlatform::IndexedPack::Ptr pack,
ModPlatform::IndexedVersion version,
const std::shared_ptr<ResourceFolderModel> packs,
bool is_indexed,
QString custom_target_folder)
: m_pack(std::move(pack)), m_pack_version(std::move(version)), m_pack_model(packs), m_custom_target_folder(custom_target_folder)
{
if (auto model = dynamic_cast<ModFolderModel*>(m_pack_model.get()); model && is_indexed) {
m_update_task.reset(new LocalModUpdateTask(model->indexDir(), *m_pack, m_pack_version));
connect(m_update_task.get(), &LocalModUpdateTask::hasOldMod, this, &ResourceDownloadTask::hasOldResource);
addTask(m_update_task);
}
m_filesNetJob.reset(new NetJob(tr("Resource download"), APPLICATION->network()));
m_filesNetJob->setStatus(tr("Downloading resource:\n%1").arg(m_pack_version.downloadUrl));
QDir dir{ m_pack_model->dir() };
{
// FIXME: Make this more generic. May require adding additional info to IndexedVersion,
// or adquiring a reference to the base instance.
if (!m_custom_target_folder.isEmpty()) {
dir.cdUp();
dir.cd(m_custom_target_folder);
}
}
m_filesNetJob->addNetAction(Net::Download::makeFile(m_pack_version.downloadUrl, dir.absoluteFilePath(getFilename())));
connect(m_filesNetJob.get(), &NetJob::succeeded, this, &ResourceDownloadTask::downloadSucceeded);
connect(m_filesNetJob.get(), &NetJob::progress, this, &ResourceDownloadTask::downloadProgressChanged);
connect(m_filesNetJob.get(), &NetJob::stepProgress, this, &ResourceDownloadTask::propogateStepProgress);
connect(m_filesNetJob.get(), &NetJob::failed, this, &ResourceDownloadTask::downloadFailed);
addTask(m_filesNetJob);
}
void ResourceDownloadTask::downloadSucceeded()
{
m_filesNetJob.reset();
auto name = std::get<0>(to_delete);
auto filename = std::get<1>(to_delete);
if (!name.isEmpty() && filename != m_pack_version.fileName) {
if (auto model = dynamic_cast<ModFolderModel*>(m_pack_model.get()); model)
model->uninstallMod(filename, true);
else
m_pack_model->uninstallResource(filename);
}
}
void ResourceDownloadTask::downloadFailed(QString reason)
{
emitFailed(reason);
m_filesNetJob.reset();
}
void ResourceDownloadTask::downloadProgressChanged(qint64 current, qint64 total)
{
emit progress(current, total);
}
// This indirection is done so that we don't delete a mod before being sure it was
// downloaded successfully!
void ResourceDownloadTask::hasOldResource(QString name, QString filename)
{
to_delete = { name, filename };
}