pollymc/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp

// SPDX-License-Identifier: GPL-3.0-only
/*
 *  PolyMC - Minecraft Launcher
 *
 *  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/>.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 *      Copyright 2013-2021 MultiMC Contributors
 *      Copyright 2021-2022 kb1000
 *
 *      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 "ModrinthPage.h"
#include "ui_ModrinthPage.h"

#include "ModrinthModel.h"

#include "InstanceImportTask.h"
#include "Json.h"

#include <HoeDown.h>

#include <QComboBox>
#include <QKeyEvent>
#include <QPushButton>

ModrinthPage::ModrinthPage(NewInstanceDialog* dialog, QWidget* parent) : QWidget(parent), ui(new Ui::ModrinthPage), dialog(dialog)
{
    ui->setupUi(this);

    connect(ui->searchButton, &QPushButton::clicked, this, &ModrinthPage::triggerSearch);
    ui->searchEdit->installEventFilter(this);
    m_model = new Modrinth::ModpackListModel(this);
    ui->packView->setModel(m_model);

    ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
    ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);

    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, &ModrinthPage::onSelectionChanged);
    connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this, &ModrinthPage::onVersionSelectionChanged);
}

ModrinthPage::~ModrinthPage()
{
    delete ui;
}

void ModrinthPage::retranslate()
{
    ui->retranslateUi(this);
}

void ModrinthPage::openedImpl()
{
    BasePage::openedImpl();
    triggerSearch();
}

bool ModrinthPage::eventFilter(QObject* watched, QEvent* event)
{
    if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
        auto* keyEvent = reinterpret_cast<QKeyEvent*>(event);
        if (keyEvent->key() == Qt::Key_Return) {
            this->triggerSearch();
            keyEvent->accept();
            return true;
        }
    }
    return QObject::eventFilter(watched, event);
}

void ModrinthPage::onSelectionChanged(QModelIndex first, QModelIndex second)
{
    ui->versionSelectionBox->clear();

    if (!first.isValid()) {
        if (isOpened) {
            dialog->setSuggestedPack();
        }
        return;
    }

    current = m_model->data(first, Qt::UserRole).value<Modrinth::Modpack>();
    auto name = current.name;

    if (!current.extraInfoLoaded) {
        qDebug() << "Loading modrinth modpack information";

        auto netJob = new NetJob(QString("Modrinth::PackInformation(%1)").arg(current.name), APPLICATION->network());
        auto response = new QByteArray();

        QString id = current.id;

        netJob->addNetAction(Net::Download::makeByteArray(QString("https://staging-api.modrinth.com/v2/project/%1").arg(id), response));

        QObject::connect(netJob, &NetJob::succeeded, this, [this, response, id] {
            if (id != current.id) {
                return;  // wrong request?
            }

            QJsonParseError parse_error;
            QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
            if (parse_error.error != QJsonParseError::NoError) {
                qWarning() << "Error while parsing JSON response from Modrinth at " << parse_error.offset
                           << " reason: " << parse_error.errorString();
                qWarning() << *response;
                return;
            }

            auto obj = Json::requireObject(doc);

            try {
                Modrinth::loadIndexedInfo(current, obj);
            } catch (const JSONValidationError& e) {
                qDebug() << *response;
                qWarning() << "Error while reading modrinth modpack version: " << e.cause();
            }

            updateUI();
            suggestCurrent();
        });
        QObject::connect(netJob, &NetJob::finished, this, [response, netJob] {
            netJob->deleteLater();
            delete response;
        });
        netJob->start();
    } else
        updateUI();

    if (!current.versionsLoaded) {
        qDebug() << "Loading modrinth modpack versions";

        auto netJob = new NetJob(QString("Modrinth::PackVersions(%1)").arg(current.name), APPLICATION->network());
        auto response = new QByteArray();

        QString id = current.id;

        netJob->addNetAction(
            Net::Download::makeByteArray(QString("https://staging-api.modrinth.com/v2/project/%1/version").arg(id), response));

        QObject::connect(netJob, &NetJob::succeeded, this, [this, response, id] {
            if (id != current.id) {
                return;  // wrong request?
            }

            QJsonParseError parse_error;
            QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
            if (parse_error.error != QJsonParseError::NoError) {
                qWarning() << "Error while parsing JSON response from Modrinth at " << parse_error.offset
                           << " reason: " << parse_error.errorString();
                qWarning() << *response;
                return;
            }

            try {
                Modrinth::loadIndexedVersions(current, doc);
            } catch (const JSONValidationError& e) {
                qDebug() << *response;
                qWarning() << "Error while reading modrinth modpack version: " << e.cause();
            }

            for (auto version : current.versions) {
                ui->versionSelectionBox->addItem(version.version, QVariant(version.id));
            }

            updateVersionsUI();
            suggestCurrent();
        });
        QObject::connect(netJob, &NetJob::finished, this, [response, netJob] {
            netJob->deleteLater();
            delete response;
        });
        netJob->start();

    } else {
        for (auto version : current.versions) {
            ui->versionSelectionBox->addItem(QString("%1 - %2").arg(version.name, version.version), QVariant(version.id));
        }

        suggestCurrent();
    }
}

void ModrinthPage::updateUI()
{
    QString text = "";

    if (current.extra.sourceUrl.isEmpty())
        text = current.name;
    else
        text = "<a href=\"" + current.extra.sourceUrl + "\">" + current.name + "</a>";

    if (!current.authors.empty()) {
        // TODO: Implement multiple authors with links
        text += "<br>" + tr(" by ") + current.authors.at(0);
    }

    text += "<br>";

    HoeDown h;
    text += h.process(current.extra.body.toUtf8());

    ui->packDescription->setHtml(text + current.description);
}

void ModrinthPage::updateVersionsUI()
{
    // idk
}

void ModrinthPage::suggestCurrent()
{
    if (!isOpened) {
        return;
    }

    if (selectedVersion.isEmpty()) {
        dialog->setSuggestedPack();
        return;
    }

    for (auto& ver : current.versions) {
        if (ver.id == selectedVersion) {
            dialog->setSuggestedPack(current.name, new InstanceImportTask(ver.download_url));

            break;
        }
    }
}

void ModrinthPage::triggerSearch()
{
    m_model->searchWithTerm(ui->searchEdit->text(), ui->sortByBox->currentIndex());
}

void ModrinthPage::onVersionSelectionChanged(QString data)
{
    if (data.isNull() || data.isEmpty()) {
        selectedVersion = "";
        return;
    }
    selectedVersion = ui->versionSelectionBox->currentData().toString();
    suggestCurrent();
}