NOISSUE continue reshuffling the codebase

launcher/ui/pages/modplatform/technic/TechnicModel.cpp

@@ -0,0 +1,237 @@
+/* Copyright 2020-2021 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 "TechnicModel.h"
+#include "Application.h"
+#include "Json.h"
+
+#include <QIcon>
+
+Technic::ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+Technic::ListModel::~ListModel()
+{
+}
+
+QVariant Technic::ListModel::data(const QModelIndex& index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    Modpack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        if(m_logoMap.contains(pack.logoName))
+        {
+            return (m_logoMap.value(pack.logoName));
+        }
+        QIcon icon = APPLICATION->getThemedIcon("screenshot-placeholder");
+        ((ListModel *)this)->requestLogo(pack.logoName, pack.logoUrl);
+        return icon;
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+    return QVariant();
+}
+
+int Technic::ListModel::columnCount(const QModelIndex&) const
+{
+    return 1;
+}
+
+int Technic::ListModel::rowCount(const QModelIndex&) const
+{
+    return modpacks.size();
+}
+
+void Technic::ListModel::searchWithTerm(const QString& term)
+{
+    if(currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull()) {
+        return;
+    }
+    currentSearchTerm = term;
+    if(jobPtr) {
+        jobPtr->abort();
+        searchState = ResetRequested;
+        return;
+    }
+    else {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+        searchState = None;
+    }
+    performSearch();
+}
+
+void Technic::ListModel::performSearch()
+{
+    NetJob *netJob = new NetJob("Technic::Search");
+    QString searchUrl = "";
+    if (currentSearchTerm.isEmpty()) {
+        searchUrl = "https://api.technicpack.net/trending?build=multimc";
+    }
+    else
+    {
+        searchUrl = QString(
+            "https://api.technicpack.net/search?build=multimc&q=%1"
+        ).arg(currentSearchTerm);
+    }
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
+    jobPtr = netJob;
+    jobPtr->start(APPLICATION->network());
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
+}
+
+void Technic::ListModel::searchRequestFinished()
+{
+    jobPtr.reset();
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+    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;
+    }
+
+    QList<Modpack> newList;
+    try {
+        auto root = Json::requireObject(doc);
+        auto objs = Json::requireArray(root, "modpacks");
+        for (auto technicPack: objs) {
+            Modpack pack;
+            auto technicPackObject = Json::requireObject(technicPack);
+            pack.name = Json::requireString(technicPackObject, "name");
+            pack.slug = Json::requireString(technicPackObject, "slug");
+            if (pack.slug == "vanilla")
+                continue;
+
+            auto rawURL = Json::ensureString(technicPackObject, "iconUrl", "null");
+            if(rawURL == "null") {
+                pack.logoUrl = "null";
+                pack.logoName = "null";
+            }
+            else {
+                pack.logoUrl = rawURL;
+                pack.logoName = rawURL.section(QLatin1Char('/'), -1).section(QLatin1Char('.'), 0, 0);
+            }
+            pack.broken = false;
+            newList.append(pack);
+        }
+    }
+    catch (const JSONValidationError &err)
+    {
+        qCritical() << "Couldn't parse technic search results:" << err.cause() ;
+        return;
+    }
+    searchState = Finished;
+    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
+    modpacks.append(newList);
+    endInsertRows();
+}
+
+void Technic::ListModel::getLogo(const QString& logo, const QString& logoUrl, Technic::LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(APPLICATION->metacache()->resolveEntry("TechnicPacks", QString("logos/%1").arg(logo))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+void Technic::ListModel::searchRequestFailed()
+{
+    jobPtr.reset();
+
+    if(searchState == ResetRequested)
+    {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+
+        performSearch();
+    }
+    else
+    {
+        searchState = Finished;
+    }
+}
+
+
+void Technic::ListModel::logoLoaded(QString logo, QString out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, QIcon(out));
+    for(int i = 0; i < modpacks.size(); i++)
+    {
+        if(modpacks[i].logoName == logo)
+        {
+            emit dataChanged(createIndex(i, 0), createIndex(i, 0), {Qt::DecorationRole});
+        }
+    }
+}
+
+void Technic::ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void Technic::ListModel::requestLogo(QString logo, QString url)
+{
+    if(m_loadingLogos.contains(logo) || m_failedLogos.contains(logo) || logo == "null")
+    {
+        return;
+    }
+
+    MetaEntryPtr entry = APPLICATION->metacache()->resolveEntry("TechnicPacks", QString("logos/%1").arg(logo));
+    NetJob *job = new NetJob(QString("Technic Icon Download %1").arg(logo));
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+
+    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath]
+    {
+        logoLoaded(logo, fullPath);
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, logo]
+    {
+        logoFailed(logo);
+    });
+
+    job->start(APPLICATION->network());
+
+    m_loadingLogos.append(logo);
+}