GH-469 Implement support for importing and searching for Technic Platform and Solder modpacks

This does not support any custom modpack.jar for 1.6 or newer, it simply uses standard Forge then.
Supports Forge and Fabric, and JAR mods for 1.5 and older.

1 files changed, 204 insertions, 0 deletions

diff --git a/application/pages/modplatform/technic/TechnicPage.cpp b/application/pages/modplatform/technic/TechnicPage.cpp
new file mode 100644
index 00000000..75efd3ed
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicPage.cpp
@@ -0,0 +1,204 @@
+/* Copyright 2013-2020 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 "TechnicPage.h"
+#include "ui_TechnicPage.h"
+
+#include "MultiMC.h"
+#include "dialogs/NewInstanceDialog.h"
+#include "TechnicModel.h"
+#include <QKeyEvent>
+#include "modplatform/technic/SingleZipPackInstallTask.h"
+#include "modplatform/technic/SolderPackInstallTask.h"
+#include "Json.h"
+
+TechnicPage::TechnicPage(NewInstanceDialog* dialog, QWidget *parent)
+    : QWidget(parent), ui(new Ui::TechnicPage), dialog(dialog)
+{
+    ui->setupUi(this);
+    connect(ui->searchButton, &QPushButton::clicked, this, &TechnicPage::triggerSearch);
+    ui->searchEdit->installEventFilter(this);
+    model = new Technic::ListModel(this);
+    ui->packView->setModel(model);
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &TechnicPage::onSelectionChanged);
+}
+
+bool TechnicPage::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);
+}
+
+TechnicPage::~TechnicPage()
+{
+    delete ui;
+}
+
+bool TechnicPage::shouldDisplay() const
+{
+    return true;
+}
+
+void TechnicPage::openedImpl()
+{
+    dialog->setSuggestedPack();
+}
+
+void TechnicPage::triggerSearch() {
+    model->searchWithTerm(ui->searchEdit->text());
+}
+
+void TechnicPage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    if(!first.isValid())
+    {
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        //ui->frame->clear();
+        return;
+    }
+
+    current = model->data(first, Qt::UserRole).value<Technic::Modpack>();
+    suggestCurrent();
+}
+
+void TechnicPage::suggestCurrent()
+{
+    if (!isOpened)
+    {
+        return;
+    }
+    if (current.broken)
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    QString editedLogoName;
+    editedLogoName = "technic_" + current.logoName.section(".", 0, 0);
+    model->getLogo(current.logoName, current.logoUrl, [this, editedLogoName](QString logo)
+    {
+        dialog->setSuggestedIconFromFile(logo, editedLogoName);
+    });
+
+    if (current.metadataLoaded)
+    {
+        metadataLoaded();
+    }
+    else
+    {
+        NetJob *netJob = new NetJob(QString("Technic::PackMeta(%1)").arg(current.name));
+        std::shared_ptr<QByteArray> response = std::make_shared<QByteArray>();
+        QString slug = current.slug;
+        netJob->addNetAction(Net::Download::makeByteArray(QString("https://api.technicpack.net/modpack/%1?build=multimc").arg(slug), response.get()));
+        QObject::connect(netJob, &NetJob::succeeded, this, [this, response, slug]
+        {
+            if (current.slug != slug)
+            {
+                return;
+            }
+            QJsonParseError parse_error;
+            QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
+            QJsonObject obj = doc.object();
+            if(parse_error.error != QJsonParseError::NoError)
+            {
+                qWarning() << "Error while parsing JSON response from Technic at " << parse_error.offset << " reason: " << parse_error.errorString();
+                qWarning() << *response;
+                return;
+            }
+            if (!obj.contains("url"))
+            {
+                qWarning() << "Json doesn't contain an url key";
+                return;
+            }
+            QJsonValueRef url = obj["url"];
+            if (url.isString())
+            {
+                current.url = url.toString();
+            }
+            else
+            {
+                if (!obj.contains("solder"))
+                {
+                    qWarning() << "Json doesn't contain a valid url or solder key";
+                    return;
+                }
+                QJsonValueRef solderUrl = obj["solder"];
+                if (solderUrl.isString())
+                {
+                    current.url = solderUrl.toString();
+                    current.isSolder = true;
+                }
+                else
+                {
+                    qWarning() << "Json doesn't contain a valid url or solder key";
+                    return;
+                }
+            }
+
+            current.minecraftVersion = Json::ensureString(obj, "minecraft", QString(), "__placeholder__");
+            current.metadataLoaded = true;
+            metadataLoaded();
+        });
+        netJob->start();
+    }
+}
+
+// expects current.metadataLoaded to be true
+void TechnicPage::metadataLoaded()
+{
+    /*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 = [](Technic::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 += tr(" by ") + authorStrs.join(", ");
+    }
+
+    ui->frame->setModText(text);
+    ui->frame->setModDescription(current.description);*/
+    if (!current.isSolder)
+    {
+        dialog->setSuggestedPack(current.name, new Technic::SingleZipPackInstallTask(current.url, current.minecraftVersion));
+    }
+    else
+    {
+        while (current.url.endsWith('/')) current.url.chop(1);
+        dialog->setSuggestedPack(current.name, new Technic::SolderPackInstallTask(current.url + "/modpack/" + current.slug, current.minecraftVersion));
+    }
+}