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/* SPDX-FileCopyrightText: 2026 Project Tick
* SPDX-FileContributor: Project Tick
* SPDX-License-Identifier: GPL-3.0-or-later
*
* 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.
*
* 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 "AssetUpdateTask.h"
#include "minecraft/MinecraftInstance.h"
#include "minecraft/PackProfile.h"
#include "net/ChecksumValidator.h"
#include "minecraft/AssetsUtils.h"
#include "Application.h"
AssetUpdateTask::AssetUpdateTask(MinecraftInstance* inst)
{
m_inst = inst;
}
AssetUpdateTask::~AssetUpdateTask() {}
void AssetUpdateTask::executeTask()
{
setStatus(tr("Updating assets index..."));
auto components = m_inst->getPackProfile();
auto profile = components->getProfile();
auto assets = profile->getMinecraftAssets();
QUrl indexUrl = assets->url;
QString localPath = assets->id + ".json";
auto job = new NetJob(tr("Asset index for %1").arg(m_inst->name()),
APPLICATION->network());
auto metacache = APPLICATION->metacache();
auto entry = metacache->resolveEntry("asset_indexes", localPath);
entry->setStale(true);
auto hexSha1 = assets->sha1.toLatin1();
qDebug() << "Asset index SHA1:" << hexSha1;
auto dl = Net::Download::makeCached(indexUrl, entry);
auto rawSha1 = QByteArray::fromHex(assets->sha1.toLatin1());
dl->addValidator(
new Net::ChecksumValidator(QCryptographicHash::Sha1, rawSha1));
job->addNetAction(dl);
downloadJob.reset(job);
connect(downloadJob.get(), &NetJob::succeeded, this,
&AssetUpdateTask::assetIndexFinished);
connect(downloadJob.get(), &NetJob::failed, this,
&AssetUpdateTask::assetIndexFailed);
connect(downloadJob.get(), &NetJob::progress, this,
&AssetUpdateTask::progress);
qDebug() << m_inst->name() << ": Starting asset index download";
downloadJob->start();
}
bool AssetUpdateTask::canAbort() const
{
return true;
}
void AssetUpdateTask::assetIndexFinished()
{
AssetsIndex index;
qDebug() << m_inst->name() << ": Finished asset index download";
auto components = m_inst->getPackProfile();
auto profile = components->getProfile();
auto assets = profile->getMinecraftAssets();
QString asset_fname = "assets/indexes/" + assets->id + ".json";
// FIXME: this looks like a job for a generic validator based on json
// schema?
if (!AssetsUtils::loadAssetsIndexJson(assets->id, asset_fname, index)) {
auto metacache = APPLICATION->metacache();
auto entry =
metacache->resolveEntry("asset_indexes", assets->id + ".json");
metacache->evictEntry(entry);
emitFailed(tr("Failed to read the assets index!"));
}
auto job = index.getDownloadJob();
if (job) {
setStatus(tr("Getting the assets files from Mojang..."));
downloadJob = job;
connect(downloadJob.get(), &NetJob::succeeded, this,
&AssetUpdateTask::emitSucceeded);
connect(downloadJob.get(), &NetJob::failed, this,
&AssetUpdateTask::assetsFailed);
connect(downloadJob.get(), &NetJob::progress, this,
&AssetUpdateTask::progress);
downloadJob->start();
return;
}
emitSucceeded();
}
void AssetUpdateTask::assetIndexFailed(QString reason)
{
qDebug() << m_inst->name() << ": Failed asset index download";
emitFailed(tr("Failed to download the assets index:\n%1").arg(reason));
}
void AssetUpdateTask::assetsFailed(QString reason)
{
emitFailed(tr("Failed to download assets:\n%1").arg(reason));
}
bool AssetUpdateTask::abort()
{
if (downloadJob) {
return downloadJob->abort();
} else {
qWarning() << "Prematurely aborted AssetUpdateTask";
}
return true;
}
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