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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 "FlamePage.h"
#include "ui_FlamePage.h"
#include <QKeyEvent>
#include "Application.h"
#include "Json.h"
#include "ui/dialogs/NewInstanceDialog.h"
#include "InstanceImportTask.h"
#include "FlameModel.h"
FlamePage::FlamePage(NewInstanceDialog* dialog, QWidget* parent)
: QWidget(parent), ui(new Ui::FlamePage), dialog(dialog)
{
ui->setupUi(this);
connect(ui->searchButton, &QPushButton::clicked, this,
&FlamePage::triggerSearch);
ui->searchEdit->installEventFilter(this);
listModel = new Flame::ListModel(this);
ui->packView->setModel(listModel);
ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(
Qt::ScrollBarAsNeeded);
ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);
// index is used to set the sorting with the curseforge api
ui->sortByBox->addItem(tr("Sort by featured"));
ui->sortByBox->addItem(tr("Sort by popularity"));
ui->sortByBox->addItem(tr("Sort by last updated"));
ui->sortByBox->addItem(tr("Sort by name"));
ui->sortByBox->addItem(tr("Sort by author"));
ui->sortByBox->addItem(tr("Sort by total downloads"));
connect(ui->sortByBox, SIGNAL(currentIndexChanged(int)), this,
SLOT(triggerSearch()));
connect(ui->packView->selectionModel(),
&QItemSelectionModel::currentChanged, this,
&FlamePage::onSelectionChanged);
connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this,
&FlamePage::onVersionSelectionChanged);
}
FlamePage::~FlamePage()
{
delete ui;
}
bool FlamePage::eventFilter(QObject* watched, QEvent* event)
{
if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
if (keyEvent->key() == Qt::Key_Return) {
triggerSearch();
keyEvent->accept();
return true;
}
}
return QWidget::eventFilter(watched, event);
}
bool FlamePage::shouldDisplay() const
{
return true;
}
void FlamePage::openedImpl()
{
suggestCurrent();
triggerSearch();
}
void FlamePage::triggerSearch()
{
listModel->searchWithTerm(ui->searchEdit->text(),
ui->sortByBox->currentIndex());
}
void FlamePage::onSelectionChanged(QModelIndex first, QModelIndex second)
{
ui->versionSelectionBox->clear();
if (!first.isValid()) {
if (isOpened) {
dialog->setSuggestedPack();
}
return;
}
current = listModel->data(first, Qt::UserRole).value<Flame::IndexedPack>();
QString text = "";
QString name = current.name;
if (current.websiteUrl.isEmpty())
text = name;
else
text = "<a href=\"" + current.websiteUrl + "\">" + name + "</a>";
if (!current.authors.empty()) {
auto authorToStr = [](Flame::ModpackAuthor& author) {
if (author.url.isEmpty()) {
return author.name;
}
return QString("<a href=\"%1\">%2</a>")
.arg(author.url, author.name);
};
QStringList authorStrs;
for (auto& author : current.authors) {
authorStrs.push_back(authorToStr(author));
}
text += "<br>" + tr(" by ") + authorStrs.join(", ");
}
text += "<br><br>";
ui->packDescription->setHtml(text + current.description);
if (isOpened) {
dialog->setSuggestedPack(current.name);
}
if (current.versionsLoaded == false) {
qDebug() << "Loading flame modpack versions";
NetJob* netJob =
new NetJob(QString("Flame::PackVersions(%1)").arg(current.name),
APPLICATION->network());
std::shared_ptr<QByteArray> response = std::make_shared<QByteArray>();
int addonId = current.addonId;
netJob->addNetAction(Net::Download::makeByteArray(
QString("https://api.curseforge.com/v1/mods/%1/files").arg(addonId),
response.get()));
QObject::connect(netJob, &NetJob::succeeded, this, [this, response] {
QJsonParseError parse_error;
QJsonDocument doc =
QJsonDocument::fromJson(*response, &parse_error);
if (parse_error.error != QJsonParseError::NoError) {
qWarning()
<< "Error while parsing JSON response from CurseForge at "
<< parse_error.offset
<< " reason: " << parse_error.errorString();
qWarning() << *response;
return;
}
QJsonArray arr;
if (doc.isObject() && doc.object().contains("data")) {
arr = doc.object().value("data").toArray();
} else {
arr = doc.array();
}
try {
Flame::loadIndexedPackVersions(current, arr);
} catch (const JSONValidationError& e) {
qDebug() << *response;
qWarning() << "Error while reading flame modpack version: "
<< e.cause();
}
for (auto version : current.versions) {
ui->versionSelectionBox->addItem(version.version,
QVariant(version.downloadUrl));
}
suggestCurrent();
});
netJob->start();
} else {
for (auto version : current.versions) {
ui->versionSelectionBox->addItem(version.version,
QVariant(version.downloadUrl));
}
suggestCurrent();
}
}
void FlamePage::suggestCurrent()
{
if (!isOpened) {
return;
}
if (selectedVersionIndex < 0 ||
selectedVersionIndex >= current.versions.size()) {
dialog->setSuggestedPack();
return;
}
auto& version = current.versions[selectedVersionIndex];
if (!version.downloadUrl.isEmpty()) {
// Normal download — direct URL available
dialog->setSuggestedPack(current.name,
new InstanceImportTask(version.downloadUrl));
} else {
// Restricted download — construct CurseForge browser download URL
// This URL triggers a browser download when opened, respecting ToS
QString browserUrl =
QString(
"https://www.curseforge.com/api/v1/mods/%1/files/%2/download")
.arg(version.addonId)
.arg(version.fileId);
dialog->setSuggestedPack(current.name,
new InstanceImportTask(browserUrl));
qDebug() << "Pack has no API download URL, using browser download URL:"
<< browserUrl;
}
QString editedLogoName;
editedLogoName = "curseforge_" + current.logoName.section(".", 0, 0);
listModel->getLogo(current.logoName, current.logoUrl,
[this, editedLogoName](QString logo) {
dialog->setSuggestedIconFromFile(logo,
editedLogoName);
});
}
void FlamePage::onVersionSelectionChanged(QString data)
{
if (data.isNull() || data.isEmpty()) {
selectedVersion = "";
selectedVersionIndex = -1;
return;
}
selectedVersion = ui->versionSelectionBox->currentData().toString();
selectedVersionIndex = ui->versionSelectionBox->currentIndex();
suggestCurrent();
}
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