Merge branch 'develop' of https://github.com/PolyMC/PolyMC into flatpak_properly

32 files changed, 1079 insertions, 1422 deletions

diff --git a/launcher/Application.cpp b/launcher/Application.cpp
index abdfc06d..af1cfe85 100644
--- a/launcher/Application.cpp
+++ b/launcher/Application.cpp
@@ -727,6 +727,7 @@ Application::Application(int &argc, char **argv) : QApplication(argc, argv)
         m_settings->registerSetting("PastebinURL", "https://0x0.st");
 
         m_settings->registerSetting("CloseAfterLaunch", false);
+        m_settings->registerSetting("QuitAfterGameStop", false);
 
         // Custom MSA credentials
         m_settings->registerSetting("MSAClientIDOverride", "");
diff --git a/launcher/CMakeLists.txt b/launcher/CMakeLists.txt
index 98cb0a3b..32c7ea71 100644
--- a/launcher/CMakeLists.txt
+++ b/launcher/CMakeLists.txt
@@ -144,6 +144,8 @@ set(LAUNCH_SOURCES
     launch/steps/TextPrint.h
     launch/steps/Update.cpp
     launch/steps/Update.h
+    launch/steps/QuitAfterGameStop.cpp
+    launch/steps/QuitAfterGameStop.h
     launch/LaunchStep.cpp
     launch/LaunchStep.h
     launch/LaunchTask.cpp
@@ -485,6 +487,16 @@ set(META_SOURCES
     meta/Index.h
 )
 
+set(API_SOURCES
+    modplatform/ModAPI.h
+
+    modplatform/flame/FlameAPI.h
+    modplatform/modrinth/ModrinthAPI.h
+    
+    modplatform/helpers/NetworkModAPI.h
+    modplatform/helpers/NetworkModAPI.cpp
+)
+
 set(FTB_SOURCES
     modplatform/legacy_ftb/PackFetchTask.h
     modplatform/legacy_ftb/PackFetchTask.cpp
@@ -564,6 +576,7 @@ set(LOGIC_SOURCES
     ${TOOLS_SOURCES}
     ${META_SOURCES}
     ${ICONS_SOURCES}
+    ${API_SOURCES}
     ${FTB_SOURCES}
     ${FLAME_SOURCES}
     ${MODRINTH_SOURCES}
@@ -713,6 +726,11 @@ SET(LAUNCHER_SOURCES
     ui/pages/modplatform/VanillaPage.cpp
     ui/pages/modplatform/VanillaPage.h
 
+    ui/pages/modplatform/ModPage.cpp
+    ui/pages/modplatform/ModPage.h
+    ui/pages/modplatform/ModModel.cpp
+    ui/pages/modplatform/ModModel.h
+
     ui/pages/modplatform/atlauncher/AtlFilterModel.cpp
     ui/pages/modplatform/atlauncher/AtlFilterModel.h
     ui/pages/modplatform/atlauncher/AtlListModel.cpp
@@ -871,13 +889,12 @@ qt5_wrap_ui(LAUNCHER_UI
     ui/pages/modplatform/atlauncher/AtlOptionalModDialog.ui
     ui/pages/modplatform/atlauncher/AtlPage.ui
     ui/pages/modplatform/VanillaPage.ui
+    ui/pages/modplatform/ModPage.ui
     ui/pages/modplatform/flame/FlamePage.ui
-    ui/pages/modplatform/flame/FlameModPage.ui
     ui/pages/modplatform/legacy_ftb/Page.ui
     ui/pages/modplatform/ImportPage.ui
     ui/pages/modplatform/ftb/FtbPage.ui
     ui/pages/modplatform/technic/TechnicPage.ui
-    ui/pages/modplatform/modrinth/ModrinthPage.ui
     ui/widgets/InstanceCardWidget.ui
     ui/widgets/CustomCommands.ui
     ui/widgets/MCModInfoFrame.ui
diff --git a/launcher/launch/steps/QuitAfterGameStop.cpp b/launcher/launch/steps/QuitAfterGameStop.cpp
new file mode 100644
index 00000000..f9eced99
--- /dev/null
+++ b/launcher/launch/steps/QuitAfterGameStop.cpp
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 dada513 <dada513@protonmail.com>
+ *
+ *  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/>.
+ */
+
+#include "QuitAfterGameStop.h"
+#include <launch/LaunchTask.h>
+#include "Application.h"
+
+void QuitAfterGameStop::executeTask()
+{
+    APPLICATION->quit();
+}
diff --git a/launcher/launch/steps/QuitAfterGameStop.h b/launcher/launch/steps/QuitAfterGameStop.h
new file mode 100644
index 00000000..1ce14da9
--- /dev/null
+++ b/launcher/launch/steps/QuitAfterGameStop.h
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 dada513 <dada513@protonmail.com>
+ *
+ *  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/>.
+ */
+
+#pragma once
+
+#include <launch/LaunchStep.h>
+
+class QuitAfterGameStop: public LaunchStep
+{
+    Q_OBJECT
+public:
+    explicit QuitAfterGameStop(LaunchTask *parent) :LaunchStep(parent){};
+    virtual ~QuitAfterGameStop() {};
+
+    virtual void executeTask();
+    virtual bool canAbort() const
+    {
+        return false;
+    }
+};
diff --git a/launcher/minecraft/MinecraftInstance.cpp b/launcher/minecraft/MinecraftInstance.cpp
index 6db12c42..90bb92a1 100644
--- a/launcher/minecraft/MinecraftInstance.cpp
+++ b/launcher/minecraft/MinecraftInstance.cpp
@@ -20,6 +20,7 @@
 #include "launch/steps/PreLaunchCommand.h"
 #include "launch/steps/TextPrint.h"
 #include "launch/steps/CheckJava.h"
+#include "launch/steps/QuitAfterGameStop.h"
 
 #include "minecraft/launch/LauncherPartLaunch.h"
 #include "minecraft/launch/DirectJavaLaunch.h"
@@ -935,6 +936,11 @@ shared_qobject_ptr<LaunchTask> MinecraftInstance::createLaunchTask(AuthSessionPt
     {
         process->setCensorFilter(createCensorFilterFromSession(session));
     }
+    if(APPLICATION->settings()->get("QuitAfterGameStop").toBool())
+    {
+        auto step = new QuitAfterGameStop(pptr);
+        process->appendStep(step);
+    }
     m_launchProcess = process;
     emit launchTaskChanged(m_launchProcess);
     return m_launchProcess;
diff --git a/launcher/minecraft/launch/LauncherPartLaunch.cpp b/launcher/minecraft/launch/LauncherPartLaunch.cpp
index d15d7e9d..173f29b5 100644
--- a/launcher/minecraft/launch/LauncherPartLaunch.cpp
+++ b/launcher/minecraft/launch/LauncherPartLaunch.cpp
@@ -170,6 +170,7 @@ void LauncherPartLaunch::on_state(LoggedProcess::State state)
         {
             if (APPLICATION->settings()->get("CloseAfterLaunch").toBool())
                 APPLICATION->showMainWindow();
+
             m_parent->setPid(-1);
             // if the exit code wasn't 0, report this as a crash
             auto exitCode = m_process.exitCode();
diff --git a/launcher/modplatform/ModAPI.h b/launcher/modplatform/ModAPI.h
new file mode 100644
index 00000000..5c7c6349
--- /dev/null
+++ b/launcher/modplatform/ModAPI.h
@@ -0,0 +1,29 @@
+#pragma once
+
+#include <QString>
+
+namespace ModPlatform {
+class ListModel;
+}
+
+class ModAPI {
+   protected:
+    using CallerType = ModPlatform::ListModel;
+
+   public:
+    virtual ~ModAPI() = default;
+
+    // https://docs.curseforge.com/?http#tocS_ModLoaderType
+    enum ModLoaderType { Any = 0, Forge = 1, Cauldron = 2, LiteLoader = 3, Fabric = 4 };
+
+    struct SearchArgs {
+        int offset;
+        QString search;
+        QString sorting;
+        ModLoaderType mod_loader;
+        QString version;
+    };
+
+    virtual void searchMods(CallerType* caller, SearchArgs&& args) const = 0;
+    virtual void getVersions(CallerType* caller, const QString& addonId) const = 0;
+};
diff --git a/launcher/modplatform/ModIndex.h b/launcher/modplatform/ModIndex.h
new file mode 100644
index 00000000..7e1cf254
--- /dev/null
+++ b/launcher/modplatform/ModIndex.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <QList>
+#include <QMetaType>
+#include <QString>
+#include <QVariant>
+#include <QVector>
+
+namespace ModPlatform {
+
+struct ModpackAuthor {
+    QString name;
+    QString url;
+};
+
+struct IndexedVersion {
+    QVariant addonId;
+    QVariant fileId;
+    QString version;
+    QVector<QString> mcVersion;
+    QString downloadUrl;
+    QString date;
+    QString fileName;
+    QVector<QString> loaders = {};
+};
+
+struct IndexedPack {
+    QVariant addonId;
+    QString name;
+    QString description;
+    QList<ModpackAuthor> authors;
+    QString logoName;
+    QString logoUrl;
+    QString websiteUrl;
+
+    bool versionsLoaded = false;
+    QVector<IndexedVersion> versions;
+};
+
+}  // namespace ModPlatform
+
+Q_DECLARE_METATYPE(ModPlatform::IndexedPack)
diff --git a/launcher/modplatform/flame/FlameAPI.h b/launcher/modplatform/flame/FlameAPI.h
new file mode 100644
index 00000000..62accfa4
--- /dev/null
+++ b/launcher/modplatform/flame/FlameAPI.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#include "modplatform/helpers/NetworkModAPI.h"
+
+class FlameAPI : public NetworkModAPI {
+   private:
+    inline auto getModSearchURL(SearchArgs& args) const -> QString override
+    {
+        return QString(
+                   "https://addons-ecs.forgesvc.net/api/v2/addon/search?"
+                   "gameId=432&"
+                   "categoryId=0&"
+                   "sectionId=6&"
+
+                   "index=%1&"
+                   "pageSize=25&"
+                   "searchFilter=%2&"
+                   "sort=%3&"
+                   "modLoaderType=%4&"
+                   "gameVersion=%5")
+            .arg(args.offset)
+            .arg(args.search)
+            .arg(args.sorting)
+            .arg(args.mod_loader)
+            .arg(args.version);
+    };
+
+    inline auto getVersionsURL(const QString& addonId) const -> QString override
+    {
+        return QString("https://addons-ecs.forgesvc.net/api/v2/addon/%1/files").arg(addonId);
+    };
+};
diff --git a/launcher/modplatform/flame/FlameModIndex.cpp b/launcher/modplatform/flame/FlameModIndex.cpp
index 4adaf5f1..2c3adee4 100644
--- a/launcher/modplatform/flame/FlameModIndex.cpp
+++ b/launcher/modplatform/flame/FlameModIndex.cpp
@@ -1,13 +1,11 @@
-#include <QObject>
 #include "FlameModIndex.h"
+
 #include "Json.h"
-#include "net/NetJob.h"
-#include "BaseInstance.h"
 #include "minecraft/MinecraftInstance.h"
 #include "minecraft/PackProfile.h"
+#include "net/NetJob.h"
 
-
-void FlameMod::loadIndexedPack(FlameMod::IndexedPack & pack, QJsonObject & obj)
+void FlameMod::loadIndexedPack(ModPlatform::IndexedPack& pack, QJsonObject& obj)
 {
     pack.addonId = Json::requireInteger(obj, "id");
     pack.name = Json::requireString(obj, "name");
@@ -16,10 +14,10 @@ void FlameMod::loadIndexedPack(FlameMod::IndexedPack & pack, QJsonObject & obj)
 
     bool thumbnailFound = false;
     auto attachments = Json::requireArray(obj, "attachments");
-    for(auto attachmentRaw: attachments) {
+    for (auto attachmentRaw : attachments) {
         auto attachmentObj = Json::requireObject(attachmentRaw);
         bool isDefault = attachmentObj.value("isDefault").toBool(false);
-        if(isDefault) {
+        if (isDefault) {
             thumbnailFound = true;
             pack.logoName = Json::requireString(attachmentObj, "title");
             pack.logoUrl = Json::requireString(attachmentObj, "thumbnailUrl");
@@ -27,37 +25,35 @@ void FlameMod::loadIndexedPack(FlameMod::IndexedPack & pack, QJsonObject & obj)
         }
     }
 
-    if(!thumbnailFound) {
-        throw JSONValidationError(QString("Pack without an icon, skipping: %1").arg(pack.name));
-    }
-
+    if (!thumbnailFound) { throw JSONValidationError(QString("Pack without an icon, skipping: %1").arg(pack.name)); }
 
     auto authors = Json::requireArray(obj, "authors");
-    for(auto authorIter: authors) {
+    for (auto authorIter : authors) {
         auto author = Json::requireObject(authorIter);
-        FlameMod::ModpackAuthor packAuthor;
+        ModPlatform::ModpackAuthor packAuthor;
         packAuthor.name = Json::requireString(author, "name");
         packAuthor.url = Json::requireString(author, "url");
         pack.authors.append(packAuthor);
     }
 }
 
-void FlameMod::loadIndexedPackVersions(FlameMod::IndexedPack & pack, QJsonArray & arr, const shared_qobject_ptr<QNetworkAccessManager>& network, BaseInstance * inst)
+void FlameMod::loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
+                                       QJsonArray& arr,
+                                       const shared_qobject_ptr<QNetworkAccessManager>& network,
+                                       BaseInstance* inst)
 {
-    QVector<FlameMod::IndexedVersion> unsortedVersions;
-    bool hasFabric = !((MinecraftInstance *)inst)->getPackProfile()->getComponentVersion("net.fabricmc.fabric-loader").isEmpty();
-    QString mcVersion = ((MinecraftInstance *)inst)->getPackProfile()->getComponentVersion("net.minecraft");
+    QVector<ModPlatform::IndexedVersion> unsortedVersions;
+    bool hasFabric = !(dynamic_cast<MinecraftInstance*>(inst))->getPackProfile()->getComponentVersion("net.fabricmc.fabric-loader").isEmpty();
+    QString mcVersion = (dynamic_cast<MinecraftInstance*>(inst))->getPackProfile()->getComponentVersion("net.minecraft");
 
-    for(auto versionIter: arr) {
+    for (auto versionIter : arr) {
         auto obj = versionIter.toObject();
 
         auto versionArray = Json::requireArray(obj, "gameVersion");
-        if (versionArray.isEmpty()) {
-            continue;
-        }
+        if (versionArray.isEmpty()) { continue; }
 
-        FlameMod::IndexedVersion file;
-        for(auto mcVer : versionArray){
+        ModPlatform::IndexedVersion file;
+        for (auto mcVer : versionArray) {
             file.mcVersion.append(mcVer.toString());
         }
 
@@ -70,29 +66,27 @@ void FlameMod::loadIndexedPackVersions(FlameMod::IndexedPack & pack, QJsonArray
 
         auto modules = Json::requireArray(obj, "modules");
         bool is_valid_fabric_version = false;
-        for(auto m : modules){
-            auto fname = Json::requireString(m.toObject(),"foldername");
+        for (auto m : modules) {
+            auto fname = Json::requireString(m.toObject(), "foldername");
             // FIXME: This does not work properly when a mod supports more than one mod loader, since
             // they bundle the meta files for all of them in the same arquive, even when that version
             // doesn't support the given mod loader.
-            if(hasFabric){
-                if(fname == "fabric.mod.json"){
+            if (hasFabric) {
+                if (fname == "fabric.mod.json") {
                     is_valid_fabric_version = true;
                     break;
                 }
-            }
-            else break;
+            } else
+                break;
             // NOTE: Since we're not validating forge versions, we can just skip this loop.
         }
 
-        if(hasFabric && !is_valid_fabric_version)
-            continue;
+        if (hasFabric && !is_valid_fabric_version) continue;
 
         unsortedVersions.append(file);
     }
-    auto orderSortPredicate = [](const IndexedVersion & a, const IndexedVersion & b) -> bool
-    {
-        //dates are in RFC 3339 format
+    auto orderSortPredicate = [](const ModPlatform::IndexedVersion& a, const ModPlatform::IndexedVersion& b) -> bool {
+        // dates are in RFC 3339 format
         return a.date > b.date;
     };
     std::sort(unsortedVersions.begin(), unsortedVersions.end(), orderSortPredicate);
diff --git a/launcher/modplatform/flame/FlameModIndex.h b/launcher/modplatform/flame/FlameModIndex.h
index 0293bb23..d3171d94 100644
--- a/launcher/modplatform/flame/FlameModIndex.h
+++ b/launcher/modplatform/flame/FlameModIndex.h
@@ -3,48 +3,18 @@
 //
 
 #pragma once
-#include <QList>
-#include <QMetaType>
-#include <QString>
-#include <QVector>
-#include <QNetworkAccessManager>
-#include <QObjectPtr.h>
-#include "net/NetJob.h"
-#include "BaseInstance.h"
-
-namespace FlameMod {
-    struct ModpackAuthor {
-        QString name;
-        QString url;
-    };
 
-    struct IndexedVersion {
-        int addonId;
-        int fileId;
-        QString version;
-        QVector<QString> mcVersion;
-        QString downloadUrl;
-        QString date;
-        QString fileName;
-    };
+#include "modplatform/ModIndex.h"
 
-    struct IndexedPack
-    {
-        int addonId;
-        QString name;
-        QString description;
-        QList<ModpackAuthor> authors;
-        QString logoName;
-        QString logoUrl;
-        QString websiteUrl;
-
-        bool versionsLoaded = false;
-        QVector<IndexedVersion> versions;
-    };
+#include "BaseInstance.h"
+#include <QNetworkAccessManager>
 
-    void loadIndexedPack(IndexedPack & m, QJsonObject & obj);
-    void loadIndexedPackVersions(IndexedPack &pack, QJsonArray &arr, const shared_qobject_ptr<QNetworkAccessManager> &network, BaseInstance *inst);
+namespace FlameMod {
 
-}
+void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj);
+void loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
+                             QJsonArray& arr,
+                             const shared_qobject_ptr<QNetworkAccessManager>& network,
+                             BaseInstance* inst);
 
-Q_DECLARE_METATYPE(FlameMod::IndexedPack)
+}  // namespace FlameMod
diff --git a/launcher/modplatform/helpers/NetworkModAPI.cpp b/launcher/modplatform/helpers/NetworkModAPI.cpp
new file mode 100644
index 00000000..25c7b9fd
--- /dev/null
+++ b/launcher/modplatform/helpers/NetworkModAPI.cpp
@@ -0,0 +1,60 @@
+#include "NetworkModAPI.h"
+
+#include "ui/pages/modplatform/ModModel.h"
+
+#include "Application.h"
+#include "net/NetJob.h"
+
+void NetworkModAPI::searchMods(CallerType* caller, SearchArgs&& args) const
+{
+    auto netJob = new NetJob(QString("%1::Search").arg(caller->debugName()), APPLICATION->network());
+    auto searchUrl = getModSearchURL(args);
+
+    auto response = new QByteArray();
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), response));
+
+    QObject::connect(netJob, &NetJob::started, caller, [caller, netJob] { caller->setActiveJob(netJob); });
+    QObject::connect(netJob, &NetJob::failed, caller, &CallerType::searchRequestFailed);
+    QObject::connect(netJob, &NetJob::succeeded, caller, [caller, response] {
+        QJsonParseError parse_error{};
+        QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
+        if (parse_error.error != QJsonParseError::NoError) {
+            qWarning() << "Error while parsing JSON response from " << caller->debugName() << " at " << parse_error.offset
+                       << " reason: " << parse_error.errorString();
+            qWarning() << *response;
+            return;
+        }
+
+        caller->searchRequestFinished(doc);
+    });
+
+    netJob->start();
+}
+
+void NetworkModAPI::getVersions(CallerType* caller, const QString& addonId) const
+{
+    auto netJob = new NetJob(QString("%1::ModVersions(%2)").arg(caller->debugName()).arg(addonId), APPLICATION->network());
+    auto response = new QByteArray();
+
+    netJob->addNetAction(Net::Download::makeByteArray(getVersionsURL(addonId), response));
+
+    QObject::connect(netJob, &NetJob::succeeded, caller, [response, caller, addonId] {
+        QJsonParseError parse_error{};
+        QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
+        if (parse_error.error != QJsonParseError::NoError) {
+            qWarning() << "Error while parsing JSON response from " << caller->debugName() << " at " << parse_error.offset
+                       << " reason: " << parse_error.errorString();
+            qWarning() << *response;
+            return;
+        }
+
+        caller->versionRequestSucceeded(doc, addonId);
+    });
+
+    QObject::connect(netJob, &NetJob::finished, caller, [response, netJob] {
+        netJob->deleteLater();
+        delete response;
+    });
+
+    netJob->start();
+}
diff --git a/launcher/modplatform/helpers/NetworkModAPI.h b/launcher/modplatform/helpers/NetworkModAPI.h
new file mode 100644
index 00000000..4d3f7005
--- /dev/null
+++ b/launcher/modplatform/helpers/NetworkModAPI.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include "modplatform/ModAPI.h"
+
+class NetworkModAPI : public ModAPI {
+   public:
+    void searchMods(CallerType* caller, SearchArgs&& args) const override;
+    void getVersions(CallerType* caller, const QString& addonId) const override;
+
+   protected:
+    virtual auto getModSearchURL(SearchArgs& args) const -> QString = 0;
+    virtual auto getVersionsURL(const QString& addonId) const -> QString = 0;
+};
diff --git a/launcher/modplatform/modrinth/ModrinthAPI.h b/launcher/modplatform/modrinth/ModrinthAPI.h
new file mode 100644
index 00000000..cf4dec1a
--- /dev/null
+++ b/launcher/modplatform/modrinth/ModrinthAPI.h
@@ -0,0 +1,57 @@
+#pragma once
+
+#include "modplatform/helpers/NetworkModAPI.h"
+
+#include <QDebug>
+
+class ModrinthAPI : public NetworkModAPI {
+   public:
+    inline auto getAuthorURL(const QString& name) const -> QString { return "https://modrinth.com/user/" + name; };
+
+   private:
+    inline auto getModSearchURL(SearchArgs& args) const -> QString override
+    {
+        if (!validateModLoader(args.mod_loader)) {
+            qWarning() << "Modrinth only have Forge and Fabric-compatible mods!";
+            return "";
+        }
+
+        return QString(
+                   "https://api.modrinth.com/v2/search?"
+                   "offset=%1&"
+                   "limit=25&"
+                   "query=%2&"
+                   "index=%3&"
+                   "facets=[[\"categories:%4\"],[\"versions:%5\"],[\"project_type:mod\"]]")
+            .arg(args.offset)
+            .arg(args.search)
+            .arg(args.sorting)
+            .arg(getModLoaderString(args.mod_loader))
+            .arg(args.version);
+    };
+
+    inline auto getVersionsURL(const QString& addonId) const -> QString override
+    {
+        return QString("https://api.modrinth.com/v2/project/%1/version").arg(addonId);
+    };
+
+    inline auto getModLoaderString(ModLoaderType modLoader) const -> QString
+    {
+        switch (modLoader) {
+            case Any:
+                return "fabric, forge";
+            case Forge:
+                return "forge";
+            case Fabric:
+                return "fabric";
+            default:
+                return "";
+        }
+    }
+
+    inline auto validateModLoader(ModLoaderType modLoader) const -> bool
+    {
+        return modLoader == Any || modLoader == Forge || modLoader == Fabric;
+    }
+
+};
diff --git a/launcher/modplatform/modrinth/ModrinthPackIndex.cpp b/launcher/modplatform/modrinth/ModrinthPackIndex.cpp
index 992d6657..82988cf6 100644
--- a/launcher/modplatform/modrinth/ModrinthPackIndex.cpp
+++ b/launcher/modplatform/modrinth/ModrinthPackIndex.cpp
@@ -1,14 +1,14 @@
-#include <QObject>
 #include "ModrinthPackIndex.h"
+#include "ModrinthAPI.h"
 
 #include "Json.h"
-#include "net/NetJob.h"
-#include "BaseInstance.h"
 #include "minecraft/MinecraftInstance.h"
 #include "minecraft/PackProfile.h"
+#include "net/NetJob.h"
 
+static ModrinthAPI api;
 
-void Modrinth::loadIndexedPack(Modrinth::IndexedPack & pack, QJsonObject & obj)
+void Modrinth::loadIndexedPack(ModPlatform::IndexedPack& pack, QJsonObject& obj)
 {
     pack.addonId = Json::requireString(obj, "project_id");
     pack.name = Json::requireString(obj, "title");
@@ -16,35 +16,36 @@ void Modrinth::loadIndexedPack(Modrinth::IndexedPack & pack, QJsonObject & obj)
     pack.description = Json::ensureString(obj, "description", "");
 
     pack.logoUrl = Json::requireString(obj, "icon_url");
-    pack.logoName = pack.addonId;
+    pack.logoName = pack.addonId.toString();
 
-    Modrinth::ModpackAuthor modAuthor;
+    ModPlatform::ModpackAuthor modAuthor;
     modAuthor.name = Json::requireString(obj, "author");
-    modAuthor.url = "https://modrinth.com/user/"+modAuthor.name;
-    pack.author = modAuthor;
+    modAuthor.url = api.getAuthorURL(modAuthor.name);
+    pack.authors.append(modAuthor);
 }
 
-void Modrinth::loadIndexedPackVersions(Modrinth::IndexedPack & pack, QJsonArray & arr, const shared_qobject_ptr<QNetworkAccessManager>& network, BaseInstance * inst)
+void Modrinth::loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
+                                       QJsonArray& arr,
+                                       const shared_qobject_ptr<QNetworkAccessManager>& network,
+                                       BaseInstance* inst)
 {
-    QVector<Modrinth::IndexedVersion> unsortedVersions;
-    bool hasFabric = !((MinecraftInstance *)inst)->getPackProfile()->getComponentVersion("net.fabricmc.fabric-loader").isEmpty();
-    QString mcVersion = ((MinecraftInstance *)inst)->getPackProfile()->getComponentVersion("net.minecraft");
+    QVector<ModPlatform::IndexedVersion> unsortedVersions;
+    bool hasFabric = !(static_cast<MinecraftInstance*>(inst))->getPackProfile()->getComponentVersion("net.fabricmc.fabric-loader").isEmpty();
+    QString mcVersion = (static_cast<MinecraftInstance*>(inst))->getPackProfile()->getComponentVersion("net.minecraft");
 
-    for(auto versionIter: arr) {
+    for (auto versionIter : arr) {
         auto obj = versionIter.toObject();
-        Modrinth::IndexedVersion file;
-        file.addonId = Json::requireString(obj,"project_id") ;
+        ModPlatform::IndexedVersion file;
+        file.addonId = Json::requireString(obj, "project_id");
         file.fileId = Json::requireString(obj, "id");
         file.date = Json::requireString(obj, "date_published");
         auto versionArray = Json::requireArray(obj, "game_versions");
-        if (versionArray.empty()) {
-            continue;
-        }
-        for(auto mcVer : versionArray){
+        if (versionArray.empty()) { continue; }
+        for (auto mcVer : versionArray) {
             file.mcVersion.append(mcVer.toString());
         }
-        auto loaders = Json::requireArray(obj,"loaders");
-        for(auto loader : loaders){
+        auto loaders = Json::requireArray(obj, "loaders");
+        for (auto loader : loaders) {
             file.loaders.append(loader.toString());
         }
         file.version = Json::requireString(obj, "name");
@@ -78,18 +79,16 @@ void Modrinth::loadIndexedPackVersions(Modrinth::IndexedPack & pack, QJsonArray
             i++;
         }
 
-
         auto parent = files[i].toObject();
-        if(parent.contains("url")) {
+        if (parent.contains("url")) {
             file.downloadUrl = Json::requireString(parent, "url");
             file.fileName = Json::requireString(parent, "filename");
 
             unsortedVersions.append(file);
         }
     }
-    auto orderSortPredicate = [](const IndexedVersion & a, const IndexedVersion & b) -> bool
-    {
-        //dates are in RFC 3339 format
+    auto orderSortPredicate = [](const ModPlatform::IndexedVersion& a, const ModPlatform::IndexedVersion& b) -> bool {
+        // dates are in RFC 3339 format
         return a.date > b.date;
     };
     std::sort(unsortedVersions.begin(), unsortedVersions.end(), orderSortPredicate);
diff --git a/launcher/modplatform/modrinth/ModrinthPackIndex.h b/launcher/modplatform/modrinth/ModrinthPackIndex.h
index 3a4cd270..fd17847a 100644
--- a/launcher/modplatform/modrinth/ModrinthPackIndex.h
+++ b/launcher/modplatform/modrinth/ModrinthPackIndex.h
@@ -1,48 +1,16 @@
 #pragma once
 
-#include <QList>
-#include <QMetaType>
-#include <QString>
-#include <QVector>
-#include <QNetworkAccessManager>
-#include <QObjectPtr.h>
-#include "net/NetJob.h"
+#include "modplatform/ModIndex.h"
+
 #include "BaseInstance.h"
+#include <QNetworkAccessManager>
 
 namespace Modrinth {
 
-struct ModpackAuthor {
-    QString name;
-    QString url;
-};
-
-struct IndexedVersion {
-    QString addonId;
-    QString fileId;
-    QString version;
-    QVector<QString> mcVersion;
-    QString downloadUrl;
-    QString date;
-    QString fileName;
-    QVector<QString> loaders;
-};
-
-struct IndexedPack
-{
-    QString addonId;
-    QString name;
-    QString description;
-    ModpackAuthor author;
-    QString logoName;
-    QString logoUrl;
-    QString websiteUrl;
-
-    bool versionsLoaded = false;
-    QVector<IndexedVersion> versions;
-};
-
-void loadIndexedPack(IndexedPack & m, QJsonObject & obj);
-void loadIndexedPackVersions(IndexedPack &pack, QJsonArray &arr, const shared_qobject_ptr<QNetworkAccessManager> &network, BaseInstance *inst);
-}
+void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj);
+void loadIndexedPackVersions(ModPlatform::IndexedPack& pack,
+                             QJsonArray& arr,
+                             const shared_qobject_ptr<QNetworkAccessManager>& network,
+                             BaseInstance* inst);
 
-Q_DECLARE_METATYPE(Modrinth::IndexedPack)
+}  // namespace Modrinth
diff --git a/launcher/ui/pages/global/MinecraftPage.cpp b/launcher/ui/pages/global/MinecraftPage.cpp
index 9abae425..f49f5a92 100644
--- a/launcher/ui/pages/global/MinecraftPage.cpp
+++ b/launcher/ui/pages/global/MinecraftPage.cpp
@@ -94,6 +94,7 @@ void MinecraftPage::applySettings()
 
     // Miscellaneous
     s->set("CloseAfterLaunch", ui->closeAfterLaunchCheck->isChecked());
+    s->set("QuitAfterGameStop", ui->quitAfterGameStopCheck->isChecked());
 }
 
 void MinecraftPage::loadSettings()
@@ -113,6 +114,7 @@ void MinecraftPage::loadSettings()
     ui->recordGameTime->setChecked(s->get("RecordGameTime").toBool());
 
     ui->closeAfterLaunchCheck->setChecked(s->get("CloseAfterLaunch").toBool());
+    ui->quitAfterGameStopCheck->setChecked(s->get("QuitAfterGameStop").toBool());
 }
 
 void MinecraftPage::retranslate()
diff --git a/launcher/ui/pages/global/MinecraftPage.ui b/launcher/ui/pages/global/MinecraftPage.ui
index a28b1f59..decc9b8b 100644
--- a/launcher/ui/pages/global/MinecraftPage.ui
+++ b/launcher/ui/pages/global/MinecraftPage.ui
@@ -180,6 +180,16 @@
             </property>
            </widget>
           </item>
+          <item>
+            <widget class="QCheckBox" name="quitAfterGameStopCheck">
+             <property name="toolTip">
+              <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;PolyMC will automatically exit if the game crashes or exists.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+             </property>
+             <property name="text">
+              <string>Quit PolyMC after game window stops</string>
+             </property>
+            </widget>
+           </item>
          </layout>
         </widget>
        </item>
diff --git a/launcher/ui/pages/modplatform/ModModel.cpp b/launcher/ui/pages/modplatform/ModModel.cpp
new file mode 100644
index 00000000..cc3c5326
--- /dev/null
+++ b/launcher/ui/pages/modplatform/ModModel.cpp
@@ -0,0 +1,223 @@
+#include "ModModel.h"
+
+#include "Json.h"
+#include "minecraft/MinecraftInstance.h"
+#include "minecraft/PackProfile.h"
+#include "ui/dialogs/ModDownloadDialog.h"
+
+#include <QMessageBox>
+
+namespace ModPlatform {
+
+ListModel::ListModel(ModPage* parent) : QAbstractListModel(parent), m_parent(parent) {}
+
+auto ListModel::debugName() const -> QString
+{
+    return m_parent->debugName();
+}
+
+
+/******** Make data requests ********/
+
+void ListModel::fetchMore(const QModelIndex& parent)
+{
+    if (parent.isValid()) return;
+    if (nextSearchOffset == 0) {
+        qWarning() << "fetchMore with 0 offset is wrong...";
+        return;
+    }
+    performPaginatedSearch();
+}
+
+auto ListModel::data(const QModelIndex& index, int role) const -> QVariant
+{
+    int pos = index.row();
+    if (pos >= modpacks.size() || pos < 0 || !index.isValid()) { return QString("INVALID INDEX %1").arg(pos); }
+
+    ModPlatform::IndexedPack pack = modpacks.at(pos);
+    if (role == Qt::DisplayRole) {
+        return pack.name;
+    } else if (role == Qt::ToolTipRole) {
+        if (pack.description.length() > 100) {
+            // some magic to prevent to long tooltips and replace html linebreaks
+            QString edit = pack.description.left(97);
+            edit = edit.left(edit.lastIndexOf("<br>")).left(edit.lastIndexOf(" ")).append("...");
+            return edit;
+        }
+        return pack.description;
+    } 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 {};
+}
+
+void ListModel::requestModVersions(ModPlatform::IndexedPack const& current)
+{
+    m_parent->apiProvider()->getVersions(this, current.addonId.toString());
+}
+
+void ListModel::performPaginatedSearch()
+{
+    QString mcVersion = (dynamic_cast<MinecraftInstance*>((dynamic_cast<ModPage*>(parent()))->m_instance))->getPackProfile()->getComponentVersion("net.minecraft");
+    bool hasFabric = !(dynamic_cast<MinecraftInstance*>((dynamic_cast<ModPage*>(parent()))->m_instance))
+                          ->getPackProfile()
+                          ->getComponentVersion("net.fabricmc.fabric-loader")
+                          .isEmpty();
+
+    m_parent->apiProvider()->searchMods(
+        this, { nextSearchOffset, currentSearchTerm, getSorts()[currentSort], hasFabric ? ModAPI::Fabric : ModAPI::Forge, mcVersion });
+}
+
+void ListModel::searchWithTerm(const QString& term, const int sort)
+{
+    if (currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull() && currentSort == sort) { return; }
+    currentSearchTerm = term;
+    currentSort = sort;
+    if (jobPtr) {
+        jobPtr->abort();
+        searchState = ResetRequested;
+        return;
+    } else {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+        searchState = None;
+    }
+    nextSearchOffset = 0;
+    performPaginatedSearch();
+}
+
+void ListModel::getLogo(const QString& logo, const QString& logoUrl, LogoCallback callback)
+{
+    if (m_logoMap.contains(logo)) {
+        callback(APPLICATION->metacache()
+                     ->resolveEntry(m_parent->metaEntryBase(), QString("logos/%1").arg(logo.section(".", 0, 0)))
+                     ->getFullPath());
+    } else {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+void ListModel::requestLogo(QString logo, QString url)
+{
+    if (m_loadingLogos.contains(logo) || m_failedLogos.contains(logo)) { return; }
+
+    MetaEntryPtr entry =
+        APPLICATION->metacache()->resolveEntry(m_parent->metaEntryBase(), QString("logos/%1").arg(logo.section(".", 0, 0)));
+    auto job = new NetJob(QString("%1 Icon Download %2").arg(m_parent->debugName()).arg(logo), APPLICATION->network());
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath, job] {
+        job->deleteLater();
+        emit logoLoaded(logo, QIcon(fullPath));
+        if (waitingCallbacks.contains(logo)) { waitingCallbacks.value(logo)(fullPath); }
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, logo, job] {
+        job->deleteLater();
+        emit logoFailed(logo);
+    });
+
+    job->start();
+    m_loadingLogos.append(logo);
+}
+
+
+/******** Request callbacks ********/
+
+void ListModel::logoLoaded(QString logo, QIcon out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, 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 ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void ListModel::searchRequestFinished(QJsonDocument& doc)
+{
+    jobPtr.reset();
+
+    QList<ModPlatform::IndexedPack> newList;
+    auto packs = documentToArray(doc);
+
+    for (auto packRaw : packs) {
+        auto packObj = packRaw.toObject();
+
+        ModPlatform::IndexedPack pack;
+        try {
+            loadIndexedPack(pack, packObj);
+            newList.append(pack);
+        } catch (const JSONValidationError& e) {
+            qWarning() << "Error while loading mod from " << m_parent->debugName() << ": " << e.cause();
+            continue;
+        }
+    }
+
+    if (packs.size() < 25) {
+        searchState = Finished;
+    } else {
+        nextSearchOffset += 25;
+        searchState = CanPossiblyFetchMore;
+    }
+
+    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
+    modpacks.append(newList);
+    endInsertRows();
+}
+
+void ListModel::searchRequestFailed(QString reason)
+{
+    if (jobPtr->first()->m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 409) {
+        // 409 Gone, notify user to update
+        QMessageBox::critical(nullptr, tr("Error"),
+                              QString("%1 %2").arg(m_parent->displayName()).arg(tr("API version too old!\nPlease update PolyMC!")));
+        // self-destruct
+        (dynamic_cast<ModDownloadDialog*>((dynamic_cast<ModPage*>(parent()))->parentWidget()))->reject();
+    }
+    jobPtr.reset();
+
+    if (searchState == ResetRequested) {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+
+        nextSearchOffset = 0;
+        performPaginatedSearch();
+    } else {
+        searchState = Finished;
+    }
+}
+
+void ListModel::versionRequestSucceeded(QJsonDocument doc, QString addonId)
+{
+    auto& current = m_parent->getCurrent();
+    if (addonId != current.addonId) { return; }
+    
+    QJsonArray arr = doc.array();
+    try {
+        loadIndexedPackVersions(current, arr);
+    } catch (const JSONValidationError& e) {
+        qDebug() << doc;
+        qWarning() << "Error while reading " << debugName() << " mod version: " << e.cause();
+    }
+
+    m_parent->updateModVersions();
+}
+
+}  // namespace ModPlatform
diff --git a/launcher/ui/pages/modplatform/ModModel.h b/launcher/ui/pages/modplatform/ModModel.h
new file mode 100644
index 00000000..02be6049
--- /dev/null
+++ b/launcher/ui/pages/modplatform/ModModel.h
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <QAbstractListModel>
+
+#include "modplatform/ModAPI.h"
+#include "modplatform/ModIndex.h"
+#include "net/NetJob.h"
+
+class ModPage;
+
+namespace ModPlatform {
+
+using LogoMap = QMap<QString, QIcon>;
+using LogoCallback = std::function<void (QString)>;
+
+class ListModel : public QAbstractListModel {
+    Q_OBJECT
+
+   public:
+    ListModel(ModPage* parent);
+    ~ListModel() override = default;
+
+    inline auto rowCount(const QModelIndex& parent) const -> int override { return modpacks.size(); };
+    inline auto columnCount(const QModelIndex& parent) const -> int override { return 1; };
+    inline auto flags(const QModelIndex& index) const -> Qt::ItemFlags override { return QAbstractListModel::flags(index); };
+
+    auto debugName() const -> QString;
+
+    /* Retrieve information from the model at a given index with the given role */
+    auto data(const QModelIndex& index, int role) const -> QVariant override;
+
+    inline void setActiveJob(NetJob::Ptr ptr) { jobPtr = ptr; }
+
+    /* Ask the API for more information */
+    void fetchMore(const QModelIndex& parent) override;
+    void searchWithTerm(const QString& term, const int sort);
+    void requestModVersions(const ModPlatform::IndexedPack& current);
+
+    virtual void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj) = 0;
+    virtual void loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr) = 0;
+
+    void getLogo(const QString& logo, const QString& logoUrl, LogoCallback callback);
+
+    inline auto canFetchMore(const QModelIndex& parent) const -> bool override { return searchState == CanPossiblyFetchMore; };
+
+   public slots:
+    void searchRequestFinished(QJsonDocument& doc);
+    void searchRequestFailed(QString reason);
+
+    void versionRequestSucceeded(QJsonDocument doc, QString addonId);
+
+   protected slots:
+
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, QIcon out);
+
+    void performPaginatedSearch();
+
+   protected:
+    virtual auto documentToArray(QJsonDocument& obj) const -> QJsonArray = 0;
+    virtual auto getSorts() const -> const char** = 0;
+
+    void requestLogo(QString file, QString url);
+
+   protected:
+    ModPage* m_parent;
+
+    QList<ModPlatform::IndexedPack> modpacks;
+
+    LogoMap m_logoMap;
+    QMap<QString, LogoCallback> waitingCallbacks;
+    QStringList m_failedLogos;
+    QStringList m_loadingLogos;
+
+    QString currentSearchTerm;
+    int currentSort = 0;
+    int nextSearchOffset = 0;
+    enum SearchState { None, CanPossiblyFetchMore, ResetRequested, Finished } searchState = None;
+
+    NetJob::Ptr jobPtr;
+};
+}  // namespace ModPlatform
diff --git a/launcher/ui/pages/modplatform/ModPage.cpp b/launcher/ui/pages/modplatform/ModPage.cpp
new file mode 100644
index 00000000..3a116d3c
--- /dev/null
+++ b/launcher/ui/pages/modplatform/ModPage.cpp
@@ -0,0 +1,170 @@
+#include "ModPage.h"
+#include "ui_ModPage.h"
+
+#include <QKeyEvent>
+
+#include "minecraft/MinecraftInstance.h"
+#include "minecraft/PackProfile.h"
+#include "ui/dialogs/ModDownloadDialog.h"
+
+ModPage::ModPage(ModDownloadDialog* dialog, BaseInstance* instance, ModAPI* api)
+    : QWidget(dialog), m_instance(instance), ui(new Ui::ModPage), dialog(dialog), api(api)
+{
+    ui->setupUi(this);
+    connect(ui->searchButton, &QPushButton::clicked, this, &ModPage::triggerSearch);
+    ui->searchEdit->installEventFilter(this);
+
+    ui->versionSelectionBox->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+    ui->versionSelectionBox->view()->parentWidget()->setMaximumHeight(300);
+
+}
+
+ModPage::~ModPage()
+{
+    delete ui;
+}
+
+
+/******** Qt things ********/
+
+void ModPage::openedImpl()
+{
+    updateSelectionButton();
+    triggerSearch();
+}
+
+auto ModPage::eventFilter(QObject* watched, QEvent* event) -> bool
+{
+    if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
+        auto* keyEvent = dynamic_cast<QKeyEvent*>(event);
+        if (keyEvent->key() == Qt::Key_Return) {
+            triggerSearch();
+            keyEvent->accept();
+            return true;
+        }
+    }
+    return QWidget::eventFilter(watched, event);
+}
+
+
+/******** Callbacks to events in the UI (set up in the derived classes) ********/
+
+void ModPage::triggerSearch()
+{
+    listModel->searchWithTerm(ui->searchEdit->text(), ui->sortByBox->currentIndex());
+}
+
+void ModPage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    ui->versionSelectionBox->clear();
+
+    if (!first.isValid()) { return; }
+
+    current = listModel->data(first, Qt::UserRole).value<ModPlatform::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 = [](ModPlatform::ModpackAuthor& author) -> QString {
+            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 (!current.versionsLoaded) {
+        qDebug() << QString("Loading %1 mod versions").arg(debugName());
+
+        ui->modSelectionButton->setText(tr("Loading versions..."));
+        ui->modSelectionButton->setEnabled(false);
+
+        listModel->requestModVersions(current);
+    } else {
+        for (int i = 0; i < current.versions.size(); i++) {
+            ui->versionSelectionBox->addItem(current.versions[i].version, QVariant(i));
+        }
+        if (ui->versionSelectionBox->count() == 0) { ui->versionSelectionBox->addItem(tr("No valid version found."), QVariant(-1)); }
+
+        updateSelectionButton();
+    }
+}
+
+void ModPage::onVersionSelectionChanged(QString data)
+{
+    if (data.isNull() || data.isEmpty()) {
+        selectedVersion = -1;
+        return;
+    }
+    selectedVersion = ui->versionSelectionBox->currentData().toInt();
+    updateSelectionButton();
+}
+
+void ModPage::onModSelected()
+{
+    auto& version = current.versions[selectedVersion];
+    if (dialog->isModSelected(current.name, version.fileName)) {
+        dialog->removeSelectedMod(current.name);
+    } else {
+        dialog->addSelectedMod(current.name, new ModDownloadTask(version.downloadUrl, version.fileName, dialog->mods));
+    }
+
+    updateSelectionButton();
+}
+
+
+/******** Make changes to the UI ********/
+
+void ModPage::retranslate()
+{
+   ui->retranslateUi(this); 
+}
+
+void ModPage::updateModVersions()
+{
+    auto packProfile = (dynamic_cast<MinecraftInstance*>(m_instance))->getPackProfile();
+
+    QString mcVersion = packProfile->getComponentVersion("net.minecraft");
+    QString loaderString = (packProfile->getComponentVersion("net.minecraftforge").isEmpty()) ? "fabric" : "forge";
+
+    for (int i = 0; i < current.versions.size(); i++) {
+        auto version = current.versions[i];
+        //NOTE: Flame doesn't care about loaderString, so passing it changes nothing.
+        if (!validateVersion(version, mcVersion, loaderString)) { 
+            continue; 
+        }
+        ui->versionSelectionBox->addItem(version.version, QVariant(i));
+    }
+    if (ui->versionSelectionBox->count() == 0) { ui->versionSelectionBox->addItem(tr("No valid version found!"), QVariant(-1)); }
+
+    ui->modSelectionButton->setText(tr("Cannot select invalid version :("));
+    updateSelectionButton();
+}
+
+
+void ModPage::updateSelectionButton()
+{
+    if (!isOpened || selectedVersion < 0) {
+        ui->modSelectionButton->setEnabled(false);
+        return;
+    }
+
+    ui->modSelectionButton->setEnabled(true);
+    auto& version = current.versions[selectedVersion];
+    if (!dialog->isModSelected(current.name, version.fileName)) {
+        ui->modSelectionButton->setText(tr("Select mod for download"));
+    } else {
+        ui->modSelectionButton->setText(tr("Deselect mod for download"));
+    }
+}
diff --git a/launcher/ui/pages/modplatform/ModPage.h b/launcher/ui/pages/modplatform/ModPage.h
new file mode 100644
index 00000000..0cd13f37
--- /dev/null
+++ b/launcher/ui/pages/modplatform/ModPage.h
@@ -0,0 +1,69 @@
+#pragma once
+
+#include <QWidget>
+
+#include "Application.h"
+#include "modplatform/ModAPI.h"
+#include "modplatform/ModIndex.h"
+#include "ui/pages/BasePage.h"
+#include "ui/pages/modplatform/ModModel.h"
+
+class ModDownloadDialog;
+
+namespace Ui {
+class ModPage;
+}
+
+/* This page handles most logic related to browsing and selecting mods to download. */
+class ModPage : public QWidget, public BasePage {
+    Q_OBJECT
+
+   public:
+    explicit ModPage(ModDownloadDialog* dialog, BaseInstance* instance, ModAPI* api);
+    ~ModPage() override;
+
+    /* Affects what the user sees */
+    auto displayName() const -> QString override = 0;
+    auto icon() const -> QIcon override = 0;
+    auto id() const -> QString override = 0;
+    auto helpPage() const -> QString override = 0;
+
+    /* Used internally */
+    virtual auto metaEntryBase() const -> QString = 0;
+    virtual auto debugName() const -> QString = 0;
+
+
+    void retranslate() override;
+
+    auto shouldDisplay() const -> bool override = 0;
+    virtual auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer = "") const -> bool = 0;
+
+    auto apiProvider() const -> const ModAPI* { return api.get(); };
+
+    auto getCurrent() -> ModPlatform::IndexedPack& { return current; }
+    void updateModVersions();
+
+    void openedImpl() override;
+    auto eventFilter(QObject* watched, QEvent* event) -> bool override;
+
+    BaseInstance* m_instance;
+
+   protected:
+    void updateSelectionButton();
+
+   protected slots:
+    void triggerSearch();
+    void onSelectionChanged(QModelIndex first, QModelIndex second);
+    void onVersionSelectionChanged(QString data);
+    void onModSelected();
+
+   protected:
+    Ui::ModPage* ui = nullptr;
+    ModDownloadDialog* dialog = nullptr;
+    ModPlatform::ListModel* listModel = nullptr;
+    ModPlatform::IndexedPack current;
+
+    std::unique_ptr<ModAPI> api;
+
+    int selectedVersion = -1;
+};
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.ui b/launcher/ui/pages/modplatform/ModPage.ui
index 6c709825..508f1bac 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.ui
+++ b/launcher/ui/pages/modplatform/ModPage.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>ModrinthPage</class>
- <widget class="QWidget" name="ModrinthPage">
+ <class>ModPage</class>
+ <widget class="QWidget" name="ModPage">
   <property name="geometry">
    <rect>
     <x>0</x>
diff --git a/launcher/ui/pages/modplatform/flame/FlameModModel.cpp b/launcher/ui/pages/modplatform/flame/FlameModModel.cpp
index e8afba5a..905fb2dd 100644
--- a/launcher/ui/pages/modplatform/flame/FlameModModel.cpp
+++ b/launcher/ui/pages/modplatform/flame/FlameModModel.cpp
@@ -1,273 +1,25 @@
 #include "FlameModModel.h"
-#include "Application.h"
-#include "minecraft/MinecraftInstance.h"
-#include "minecraft/PackProfile.h"
-#include "FlameModPage.h"
-#include <Json.h>
-
-#include <MMCStrings.h>
-#include <Version.h>
-
-#include <QtMath>
 
+#include "modplatform/flame/FlameModIndex.h"
 
 namespace FlameMod {
 
-ListModel::ListModel(FlameModPage *parent) : QAbstractListModel(parent)
-{
-}
-
-ListModel::~ListModel()
-{
-}
+// NOLINTNEXTLINE(modernize-avoid-c-arrays)
+const char* ListModel::sorts[6]{ "Featured", "Popularity", "LastUpdated", "Name", "Author", "TotalDownloads" };
 
-int ListModel::rowCount(const QModelIndex &parent) const
+void ListModel::loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj)
 {
-    return modpacks.size();
-}
-
-int ListModel::columnCount(const QModelIndex &parent) const
-{
-    return 1;
-}
-
-QVariant 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);
-    }
-
-    IndexedPack pack = modpacks.at(pos);
-    if(role == Qt::DisplayRole)
-    {
-        return pack.name;
-    }
-    else if (role == Qt::ToolTipRole)
-    {
-        if(pack.description.length() > 100)
-        {
-            //some magic to prevent to long tooltips and replace html linebreaks
-            QString edit = pack.description.left(97);
-            edit = edit.left(edit.lastIndexOf("<br>")).left(edit.lastIndexOf(" ")).append("...");
-            return edit;
-
-        }
-        return pack.description;
-    }
-    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();
-}
-
-void ListModel::logoLoaded(QString logo, QIcon out)
-{
-    m_loadingLogos.removeAll(logo);
-    m_logoMap.insert(logo, 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 ListModel::logoFailed(QString logo)
-{
-    m_failedLogos.append(logo);
-    m_loadingLogos.removeAll(logo);
-}
-
-void ListModel::requestLogo(QString logo, QString url)
-{
-    if(m_loadingLogos.contains(logo) || m_failedLogos.contains(logo))
-    {
-        return;
-    }
-
-    MetaEntryPtr entry = APPLICATION->metacache()->resolveEntry("FlameMods", QString("logos/%1").arg(logo.section(".", 0, 0)));
-    auto job = new NetJob(QString("Flame Icon Download %1").arg(logo), APPLICATION->network());
-    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
-
-    auto fullPath = entry->getFullPath();
-    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath, job]
-    {
-        job->deleteLater();
-        emit logoLoaded(logo, QIcon(fullPath));
-        if(waitingCallbacks.contains(logo))
-        {
-            waitingCallbacks.value(logo)(fullPath);
-        }
-    });
-
-    QObject::connect(job, &NetJob::failed, this, [this, logo, job]
-    {
-        job->deleteLater();
-        emit logoFailed(logo);
-    });
-
-    job->start();
-    m_loadingLogos.append(logo);
+    FlameMod::loadIndexedPack(m, obj);
 }
 
-void ListModel::getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback)
+void ListModel::loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr)
 {
-    if(m_logoMap.contains(logo))
-    {
-        callback(APPLICATION->metacache()->resolveEntry("FlameMods", QString("logos/%1").arg(logo.section(".", 0, 0)))->getFullPath());
-    }
-    else
-    {
-        requestLogo(logo, logoUrl);
-    }
+    FlameMod::loadIndexedPackVersions(m, arr, APPLICATION->network(), m_parent->m_instance);
 }
 
-Qt::ItemFlags ListModel::flags(const QModelIndex &index) const
+auto ListModel::documentToArray(QJsonDocument& obj) const -> QJsonArray
 {
-    return QAbstractListModel::flags(index);
-}
-
-bool ListModel::canFetchMore(const QModelIndex& parent) const
-{
-    return searchState == CanPossiblyFetchMore;
-}
-
-void ListModel::fetchMore(const QModelIndex& parent)
-{
-    if (parent.isValid())
-        return;
-    if(nextSearchOffset == 0) {
-        qWarning() << "fetchMore with 0 offset is wrong...";
-        return;
-    }
-    performPaginatedSearch();
-}
-const char* sorts[6]{"Featured","Popularity","LastUpdated","Name","Author","TotalDownloads"};
-
-void ListModel::performPaginatedSearch()
-{
-
-    QString mcVersion =  ((MinecraftInstance *)((FlameModPage *)parent())->m_instance)->getPackProfile()->getComponentVersion("net.minecraft");
-    bool hasFabric = !((MinecraftInstance *)((FlameModPage *)parent())->m_instance)->getPackProfile()->getComponentVersion("net.fabricmc.fabric-loader").isEmpty();
-    auto netJob = new NetJob("Flame::Search", APPLICATION->network());
-    auto searchUrl = QString(
-        "https://addons-ecs.forgesvc.net/api/v2/addon/search?"
-        "gameId=432&"
-        "categoryId=0&"
-        "sectionId=6&"
-
-        "index=%1&"
-        "pageSize=25&"
-        "searchFilter=%2&"
-        "sort=%3&"
-        "modLoaderType=%4&"
-        "gameVersion=%5"
-    )
-        .arg(nextSearchOffset)
-        .arg(currentSearchTerm)
-        .arg(sorts[currentSort])
-        .arg(hasFabric ? 4 : 1) // Enum: https://docs.curseforge.com/?http#tocS_ModLoaderType
-        .arg(mcVersion);
-
-    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
-    jobPtr = netJob;
-    jobPtr->start();
-    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
-    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
-}
-
-void ListModel::searchWithTerm(const QString &term, const int sort)
-{
-    if(currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull() && currentSort == sort) {
-        return;
-    }
-    currentSearchTerm = term;
-    currentSort = sort;
-    if(jobPtr) {
-        jobPtr->abort();
-        searchState = ResetRequested;
-        return;
-    }
-    else {
-        beginResetModel();
-        modpacks.clear();
-        endResetModel();
-        searchState = None;
-    }
-    nextSearchOffset = 0;
-    performPaginatedSearch();
-}
-
-void 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 Flame at " << parse_error.offset << " reason: " << parse_error.errorString();
-        qWarning() << response;
-        return;
-    }
-
-    QList<FlameMod::IndexedPack> newList;
-    auto packs = doc.array();
-    for(auto packRaw : packs) {
-        auto packObj = packRaw.toObject();
-
-        FlameMod::IndexedPack pack;
-        try
-        {
-            FlameMod::loadIndexedPack(pack, packObj);
-            newList.append(pack);
-        }
-        catch(const JSONValidationError &e)
-        {
-            qWarning() << "Error while loading mod from Flame: " << e.cause();
-            continue;
-        }
-    }
-    if(packs.size() < 25) {
-        searchState = Finished;
-    } else {
-        nextSearchOffset += 25;
-        searchState = CanPossiblyFetchMore;
-    }
-    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
-    modpacks.append(newList);
-    endInsertRows();
-}
-
-void ListModel::searchRequestFailed(QString reason)
-{
-    jobPtr.reset();
-
-    if(searchState == ResetRequested) {
-        beginResetModel();
-        modpacks.clear();
-        endResetModel();
-
-        nextSearchOffset = 0;
-        performPaginatedSearch();
-    } else {
-        searchState = Finished;
-    }
-}
-
+    return obj.array();
 }
 
+}  // namespace FlameMod
diff --git a/launcher/ui/pages/modplatform/flame/FlameModModel.h b/launcher/ui/pages/modplatform/flame/FlameModModel.h
index 0c1cb95e..707c1bb1 100644
--- a/launcher/ui/pages/modplatform/flame/FlameModModel.h
+++ b/launcher/ui/pages/modplatform/flame/FlameModModel.h
@@ -1,79 +1,25 @@
 #pragma once
 
-#include <RWStorage.h>
-
-#include <QAbstractListModel>
-#include <QSortFilterProxyModel>
-#include <QThreadPool>
-#include <QIcon>
-#include <QStyledItemDelegate>
-#include <QList>
-#include <QString>
-#include <QStringList>
-#include <QMetaType>
-
-#include <functional>
-#include <net/NetJob.h>
-
-#include <modplatform/flame/FlamePackIndex.h>
-#include "modplatform/flame/FlameModIndex.h"
-#include "BaseInstance.h"
 #include "FlameModPage.h"
 
 namespace FlameMod {
 
-
-typedef QMap<QString, QIcon> LogoMap;
-typedef std::function<void(QString)> LogoCallback;
-
-class ListModel : public QAbstractListModel
-{
+class ListModel : public ModPlatform::ListModel {
     Q_OBJECT
 
-public:
-    ListModel(FlameModPage *parent);
-    virtual ~ListModel();
-
-    int rowCount(const QModelIndex &parent) const override;
-    int columnCount(const QModelIndex &parent) const override;
-    QVariant data(const QModelIndex &index, int role) const override;
-    Qt::ItemFlags flags(const QModelIndex &index) const override;
-    bool canFetchMore(const QModelIndex & parent) const override;
-    void fetchMore(const QModelIndex & parent) override;
-
-    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
-    void searchWithTerm(const QString &term, const int sort);
-
-private slots:
-    void performPaginatedSearch();
-
-    void logoFailed(QString logo);
-    void logoLoaded(QString logo, QIcon out);
-
-    void searchRequestFinished();
-    void searchRequestFailed(QString reason);
+   public:
+    ListModel(FlameModPage* parent) : ModPlatform::ListModel(parent) {}
+    ~ListModel() override = default;
 
-private:
-    void requestLogo(QString file, QString url);
+   private:
+    void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj) override;
+    void loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr) override;
 
-private:
-    QList<IndexedPack> modpacks;
-    QStringList m_failedLogos;
-    QStringList m_loadingLogos;
-    LogoMap m_logoMap;
-    QMap<QString, LogoCallback> waitingCallbacks;
+    auto documentToArray(QJsonDocument& obj) const -> QJsonArray override;
 
-    QString currentSearchTerm;
-    int currentSort = 0;
-    int nextSearchOffset = 0;
-    enum SearchState {
-        None,
-        CanPossiblyFetchMore,
-        ResetRequested,
-        Finished
-    } searchState = None;
-    NetJob::Ptr jobPtr;
-    QByteArray response;
+    // NOLINTNEXTLINE(modernize-avoid-c-arrays)
+    static const char* sorts[6]; 
+    inline auto getSorts() const -> const char** override { return sorts; };
 };
 
-}
+}  // namespace FlameMod
diff --git a/launcher/ui/pages/modplatform/flame/FlameModPage.cpp b/launcher/ui/pages/modplatform/flame/FlameModPage.cpp
index d1641729..864ae8e6 100644
--- a/launcher/ui/pages/modplatform/flame/FlameModPage.cpp
+++ b/launcher/ui/pages/modplatform/flame/FlameModPage.cpp
@@ -34,224 +34,40 @@
  */
 
 #include "FlameModPage.h"
-#include "ui_FlameModPage.h"
+#include "ui_ModPage.h"
 
-#include <QKeyEvent>
-
-#include "Application.h"
 #include "FlameModModel.h"
-#include "InstanceImportTask.h"
-#include "Json.h"
-#include "ModDownloadTask.h"
-#include "minecraft/MinecraftInstance.h"
-#include "minecraft/PackProfile.h"
 #include "ui/dialogs/ModDownloadDialog.h"
 
-FlameModPage::FlameModPage(ModDownloadDialog *dialog, BaseInstance *instance)
-    : QWidget(dialog), m_instance(instance), ui(new Ui::FlameModPage),
-      dialog(dialog) {
-  ui->setupUi(this);
-  connect(ui->searchButton, &QPushButton::clicked, this,
-          &FlameModPage::triggerSearch);
-  ui->searchEdit->installEventFilter(this);
-  listModel = new FlameMod::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 flame 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 Downloads"));
-
-  connect(ui->sortByBox, SIGNAL(currentIndexChanged(int)), this,
-          SLOT(triggerSearch()));
-  connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged,
-          this, &FlameModPage::onSelectionChanged);
-  connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this,
-          &FlameModPage::onVersionSelectionChanged);
-  connect(ui->modSelectionButton, &QPushButton::clicked, this,
-          &FlameModPage::onModSelected);
-}
-
-FlameModPage::~FlameModPage() { delete ui; }
-
-bool FlameModPage::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 FlameModPage::shouldDisplay() const { return true; }
-
-void FlameModPage::retranslate()
+FlameModPage::FlameModPage(ModDownloadDialog* dialog, BaseInstance* instance) 
+    : ModPage(dialog, instance, new FlameAPI())
 {
-    ui->retranslateUi(this);
-}
-
-void FlameModPage::openedImpl() {
-  updateSelectionButton();
-  triggerSearch();
-}
-
-void FlameModPage::triggerSearch() {
-  listModel->searchWithTerm(ui->searchEdit->text(),
-                            ui->sortByBox->currentIndex());
-}
-
-void FlameModPage::onSelectionChanged(QModelIndex first, QModelIndex second) {
-  ui->versionSelectionBox->clear();
-
-  if (!first.isValid()) {
-    return;
-  }
-
-  current = listModel->data(first, Qt::UserRole).value<FlameMod::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 = [](FlameMod::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 (!current.versionsLoaded) {
-    qDebug() << "Loading flame mod versions";
-
-    ui->modSelectionButton->setText(tr("Loading versions..."));
-    ui->modSelectionButton->setEnabled(false);
-
-    auto netJob =
-        new NetJob(QString("Flame::ModVersions(%1)").arg(current.name),
-                   APPLICATION->network());
-    auto response = new QByteArray();
-    int addonId = current.addonId;
-    netJob->addNetAction(Net::Download::makeByteArray(
-        QString("https://addons-ecs.forgesvc.net/api/v2/addon/%1/files")
-            .arg(addonId),
-        response));
-
-    QObject::connect(netJob, &NetJob::succeeded, this, [this, response, addonId] {
-        if(addonId != current.addonId){
-            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 Flame at "
-                   << parse_error.offset
-                   << " reason: " << parse_error.errorString();
-        qWarning() << *response;
-        return;
-      }
-      QJsonArray arr = doc.array();
-      try {
-        FlameMod::loadIndexedPackVersions(current, arr, APPLICATION->network(),
-                                          m_instance);
-      } catch (const JSONValidationError &e) {
-        qDebug() << *response;
-        qWarning() << "Error while reading Flame mod version: " << e.cause();
-      }
-      auto packProfile = ((MinecraftInstance *)m_instance)->getPackProfile();
-      QString mcVersion = packProfile->getComponentVersion("net.minecraft");
-      QString loaderString =
-          (packProfile->getComponentVersion("net.minecraftforge").isEmpty())
-              ? "fabric"
-              : "forge";
-      for (int i = 0; i < current.versions.size(); i++) {
-        auto version = current.versions[i];
-        if (!version.mcVersion.contains(mcVersion)) {
-          continue;
-        }
-        ui->versionSelectionBox->addItem(version.version, QVariant(i));
-      }
-      if (ui->versionSelectionBox->count() == 0) {
-        ui->versionSelectionBox->addItem(tr("No valid version found."),
-                                         QVariant(-1));
-      }
-
-      ui->modSelectionButton->setText(tr("Cannot select invalid version :("));
-      updateSelectionButton();
-    });
-    QObject::connect(netJob, &NetJob::finished, this, [response, netJob] {
-      netJob->deleteLater();
-      delete response;
-    });
-    netJob->start();
-  } else {
-    for (int i = 0; i < current.versions.size(); i++) {
-      ui->versionSelectionBox->addItem(current.versions[i].version,
-                                       QVariant(i));
-    }
-    if (ui->versionSelectionBox->count() == 0) {
-      ui->versionSelectionBox->addItem(tr("No valid version found."),
-                                       QVariant(-1));
-    }
-
-    updateSelectionButton();
-  }
-}
-
-void FlameModPage::updateSelectionButton() {
-  if (!isOpened || selectedVersion < 0) {
-    ui->modSelectionButton->setEnabled(false);
-    return;
-  }
-
-  ui->modSelectionButton->setEnabled(true);
-  auto &version = current.versions[selectedVersion];
-  if (!dialog->isModSelected(current.name, version.fileName)) {
-    ui->modSelectionButton->setText(tr("Select mod for download"));
-  } else {
-    ui->modSelectionButton->setText(tr("Deselect mod for download"));
-  }
+    listModel = new FlameMod::ListModel(this);
+    ui->packView->setModel(listModel);
+
+    // index is used to set the sorting with the flame 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 Downloads"));
+
+    // sometimes Qt just ignores virtual slots and doesn't work as intended it seems, 
+    // so it's best not to connect them in the parent's contructor...
+    connect(ui->sortByBox, SIGNAL(currentIndexChanged(int)), this, SLOT(triggerSearch()));
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &FlameModPage::onSelectionChanged);
+    connect(ui->versionSelectionBox, &QComboBox::currentTextChanged, this, &FlameModPage::onVersionSelectionChanged);
+    connect(ui->modSelectionButton, &QPushButton::clicked, this, &FlameModPage::onModSelected);
 }
 
-void FlameModPage::onVersionSelectionChanged(QString data) {
-  if (data.isNull() || data.isEmpty()) {
-    selectedVersion = -1;
-    return;
-  }
-  selectedVersion = ui->versionSelectionBox->currentData().toInt();
-  updateSelectionButton();
+auto FlameModPage::validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer) const -> bool
+{
+    (void) loaderVer;
+    return ver.mcVersion.contains(mineVer);
 }
 
-void FlameModPage::onModSelected() {
-  auto &version = current.versions[selectedVersion];
-  if (dialog->isModSelected(current.name, version.fileName)) {
-    dialog->removeSelectedMod(current.name);
-  } else {
-    dialog->addSelectedMod(current.name,
-                           new ModDownloadTask(version.downloadUrl,
-                                               version.fileName, dialog->mods));
-  }
-
-  updateSelectionButton();
-}
+// I don't know why, but doing this on the parent class makes it so that
+// other mod providers start loading before being selected, at least with
+// my Qt, so we need to implement this in every derived class...
+auto FlameModPage::shouldDisplay() const -> bool { return true; }
diff --git a/launcher/ui/pages/modplatform/flame/FlameModPage.h b/launcher/ui/pages/modplatform/flame/FlameModPage.h
index 2a6ade85..dc58fd7f 100644
--- a/launcher/ui/pages/modplatform/flame/FlameModPage.h
+++ b/launcher/ui/pages/modplatform/flame/FlameModPage.h
@@ -35,70 +35,26 @@
 
 #pragma once
 
-#include <QWidget>
+#include "ui/pages/modplatform/ModPage.h"
 
-#include "ui/pages/BasePage.h"
-#include <Application.h>
-#include "tasks/Task.h"
-#include "modplatform/flame/FlameModIndex.h"
+#include "modplatform/flame/FlameAPI.h"
 
-namespace Ui
-{
-class FlameModPage;
-}
-
-class ModDownloadDialog;
-
-namespace FlameMod {
-    class ListModel;
-}
-
-class FlameModPage : public QWidget, public BasePage
-{
+class FlameModPage : public ModPage {
     Q_OBJECT
 
-public:
-    explicit FlameModPage(ModDownloadDialog *dialog, BaseInstance *instance);
-    virtual ~FlameModPage();
-    virtual QString displayName() const override
-    {
-        return "CurseForge";
-    }
-    virtual QIcon icon() const override
-    {
-        return APPLICATION->getThemedIcon("flame");
-    }
-    virtual QString id() const override
-    {
-        return "curseforge";
-    }
-    virtual QString helpPage() const override
-    {
-        return "Flame-platform";
-    }
-    virtual bool shouldDisplay() const override;
-    void retranslate() override;
-
-    void openedImpl() override;
-
-    bool eventFilter(QObject * watched, QEvent * event) override;
-
-    BaseInstance *m_instance;
+   public:
+    explicit FlameModPage(ModDownloadDialog* dialog, BaseInstance* instance);
+    ~FlameModPage() override = default;
 
-private:
-    void updateSelectionButton();
+    inline auto displayName() const -> QString override { return "CurseForge"; }
+    inline auto icon() const -> QIcon override { return APPLICATION->getThemedIcon("flame"); }
+    inline auto id() const -> QString override { return "curseforge"; }
+    inline auto helpPage() const -> QString override { return "Flame-platform"; }
 
-private slots:
-    void triggerSearch();
-    void onSelectionChanged(QModelIndex first, QModelIndex second);
-    void onVersionSelectionChanged(QString data);
-    void onModSelected();
+    inline auto debugName() const -> QString override { return "Flame"; }
+    inline auto metaEntryBase() const -> QString override { return "FlameMods"; };
 
-private:
-    Ui::FlameModPage *ui = nullptr;
-    ModDownloadDialog* dialog = nullptr;
-    FlameMod::ListModel* listModel = nullptr;
-    FlameMod::IndexedPack current;
+    auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer = "") const -> bool override;
 
-    int selectedVersion = -1;
+    auto shouldDisplay() const -> bool override;
 };
diff --git a/launcher/ui/pages/modplatform/flame/FlameModPage.ui b/launcher/ui/pages/modplatform/flame/FlameModPage.ui
deleted file mode 100644
index 25cb2571..00000000
--- a/launcher/ui/pages/modplatform/flame/FlameModPage.ui
+++ /dev/null
@@ -1,97 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>FlameModPage</class>
- <widget class="QWidget" name="FlameModPage">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>837</width>
-    <height>685</height>
-   </rect>
-  </property>
-  <layout class="QGridLayout" name="gridLayout">
-   <item row="2" column="0" colspan="2">
-    <layout class="QGridLayout" name="gridLayout_4" columnstretch="0,0,0" rowminimumheight="0,0,0" columnminimumwidth="0,0,0">
-     <item row="1" column="2">
-      <widget class="QComboBox" name="versionSelectionBox"/>
-     </item>
-     <item row="1" column="0">
-      <widget class="QComboBox" name="sortByBox"/>
-     </item>
-     <item row="1" column="1">
-      <widget class="QLabel" name="label">
-       <property name="text">
-        <string>Version selected:</string>
-       </property>
-       <property name="alignment">
-        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-       </property>
-      </widget>
-     </item>
-     <item row="2" column="2">
-      <widget class="QPushButton" name="modSelectionButton">
-       <property name="text">
-        <string>Select mod for download</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="0" column="0">
-    <widget class="QLineEdit" name="searchEdit">
-     <property name="placeholderText">
-      <string>Search and filter...</string>
-     </property>
-    </widget>
-   </item>
-   <item row="1" column="0" colspan="2">
-    <layout class="QGridLayout" name="gridLayout_3">
-     <item row="1" column="0">
-      <widget class="QListView" name="packView">
-       <property name="horizontalScrollBarPolicy">
-        <enum>Qt::ScrollBarAlwaysOff</enum>
-       </property>
-       <property name="alternatingRowColors">
-        <bool>true</bool>
-       </property>
-       <property name="iconSize">
-        <size>
-         <width>48</width>
-         <height>48</height>
-        </size>
-       </property>
-      </widget>
-     </item>
-     <item row="1" column="1">
-      <widget class="QTextBrowser" name="packDescription">
-       <property name="openExternalLinks">
-        <bool>true</bool>
-       </property>
-       <property name="openLinks">
-        <bool>true</bool>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="0" column="1">
-    <widget class="QPushButton" name="searchButton">
-     <property name="text">
-      <string>Search</string>
-     </property>
-    </widget>
-   </item>
-  </layout>
- </widget>
- <tabstops>
-  <tabstop>searchEdit</tabstop>
-  <tabstop>searchButton</tabstop>
-  <tabstop>packView</tabstop>
-  <tabstop>packDescription</tabstop>
-  <tabstop>sortByBox</tabstop>
-  <tabstop>versionSelectionBox</tabstop>
- </tabstops>
- <resources/>
- <connections/>
-</ui>
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthModel.cpp b/launcher/ui/pages/modplatform/modrinth/ModrinthModel.cpp
index 5a18830a..daa43e26 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthModel.cpp
+++ b/launcher/ui/pages/modplatform/modrinth/ModrinthModel.cpp
@@ -1,276 +1,25 @@
 #include "ModrinthModel.h"
-#include "Application.h"
-#include "minecraft/MinecraftInstance.h"
-#include "minecraft/PackProfile.h"
-#include "ModrinthPage.h"
-#include "ui/dialogs/ModDownloadDialog.h"
-#include <Json.h>
-
-#include <MMCStrings.h>
-#include <Version.h>
-
-#include <QtMath>
-#include <QMessageBox>
 
+#include "modplatform/modrinth/ModrinthPackIndex.h"
 
 namespace Modrinth {
 
-ListModel::ListModel(ModrinthPage *parent) : QAbstractListModel(parent)
-{
-}
-
-ListModel::~ListModel()
-{
-}
-
-int ListModel::rowCount(const QModelIndex &parent) const
-{
-    return modpacks.size();
-}
-
-int ListModel::columnCount(const QModelIndex &parent) const
-{
-    return 1;
-}
-
-QVariant 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);
-    }
-
-    IndexedPack pack = modpacks.at(pos);
-    if(role == Qt::DisplayRole)
-    {
-        return pack.name;
-    }
-    else if (role == Qt::ToolTipRole)
-    {
-        if(pack.description.length() > 100)
-        {
-            //some magic to prevent to long tooltips and replace html linebreaks
-            QString edit = pack.description.left(97);
-            edit = edit.left(edit.lastIndexOf("<br>")).left(edit.lastIndexOf(" ")).append("...");
-            return edit;
-
-        }
-        return pack.description;
-    }
-    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();
-}
-
-void ListModel::logoLoaded(QString logo, QIcon out)
-{
-    m_loadingLogos.removeAll(logo);
-    m_logoMap.insert(logo, 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 ListModel::logoFailed(QString logo)
-{
-    m_failedLogos.append(logo);
-    m_loadingLogos.removeAll(logo);
-}
-
-void ListModel::requestLogo(QString logo, QString url)
-{
-    if(m_loadingLogos.contains(logo) || m_failedLogos.contains(logo))
-    {
-        return;
-    }
-
-    MetaEntryPtr entry = APPLICATION->metacache()->resolveEntry("ModrinthPacks", QString("logos/%1").arg(logo.section(".", 0, 0)));
-    auto job = new NetJob(QString("Modrinth Icon Download %1").arg(logo), APPLICATION->network());
-    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+// NOLINTNEXTLINE(modernize-avoid-c-arrays)
+const char* ListModel::sorts[5]{ "relevance", "downloads", "follows", "updated", "newest" };
 
-    auto fullPath = entry->getFullPath();
-    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath, job]
-    {
-        job->deleteLater();
-        emit logoLoaded(logo, QIcon(fullPath));
-        if(waitingCallbacks.contains(logo))
-        {
-            waitingCallbacks.value(logo)(fullPath);
-        }
-    });
-
-    QObject::connect(job, &NetJob::failed, this, [this, logo, job]
-    {
-        job->deleteLater();
-        emit logoFailed(logo);
-    });
-
-    job->start();
-    m_loadingLogos.append(logo);
-}
-
-void ListModel::getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback)
-{
-    if(m_logoMap.contains(logo))
-    {
-        callback(APPLICATION->metacache()->resolveEntry("ModrinthPacks", QString("logos/%1").arg(logo.section(".", 0, 0)))->getFullPath());
-    }
-    else
-    {
-        requestLogo(logo, logoUrl);
-    }
-}
-
-Qt::ItemFlags ListModel::flags(const QModelIndex &index) const
-{
-    return QAbstractListModel::flags(index);
-}
-
-bool ListModel::canFetchMore(const QModelIndex& parent) const
-{
-    return searchState == CanPossiblyFetchMore;
-}
-
-void ListModel::fetchMore(const QModelIndex& parent)
-{
-    if (parent.isValid())
-        return;
-    if(nextSearchOffset == 0) {
-        qWarning() << "fetchMore with 0 offset is wrong...";
-        return;
-    }
-    performPaginatedSearch();
-}
-const char* sorts[5]{"relevance","downloads","follows","updated","newest"};
-
-void ListModel::performPaginatedSearch()
-{
-
-    QString mcVersion =  ((MinecraftInstance *)((ModrinthPage *)parent())->m_instance)->getPackProfile()->getComponentVersion("net.minecraft");
-    bool hasFabric = !((MinecraftInstance *)((ModrinthPage *)parent())->m_instance)->getPackProfile()->getComponentVersion("net.fabricmc.fabric-loader").isEmpty();
-    auto netJob = new NetJob("Modrinth::Search", APPLICATION->network());
-    auto searchUrl = QString(
-        "https://api.modrinth.com/v2/search?"
-        "offset=%1&"
-        "limit=25&"
-        "query=%2&"
-        "index=%3&"
-        "facets=[[\"categories:%4\"],[\"versions:%5\"],[\"project_type:mod\"]]"
-    )
-        .arg(nextSearchOffset)
-        .arg(currentSearchTerm)
-        .arg(sorts[currentSort])
-        .arg(hasFabric ? "fabric" : "forge")
-        .arg(mcVersion);
-
-    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
-    jobPtr = netJob;
-    jobPtr->start();
-    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
-    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
-}
-
-void ListModel::searchWithTerm(const QString &term, const int sort)
+void ListModel::loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj)
 {
-    if(currentSearchTerm == term && currentSearchTerm.isNull() == term.isNull() && currentSort == sort) {
-        return;
-    }
-    currentSearchTerm = term;
-    currentSort = sort;
-    if(jobPtr) {
-        jobPtr->abort();
-        searchState = ResetRequested;
-        return;
-    }
-    else {
-        beginResetModel();
-        modpacks.clear();
-        endResetModel();
-        searchState = None;
-    }
-    nextSearchOffset = 0;
-    performPaginatedSearch();
+    Modrinth::loadIndexedPack(m, obj);
 }
 
-void Modrinth::ListModel::searchRequestFinished()
+void ListModel::loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr)
 {
-    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 Modrinth at " << parse_error.offset << " reason: " << parse_error.errorString();
-        qWarning() << response;
-        return;
-    }
-
-    QList<Modrinth::IndexedPack> newList;
-    auto packs = doc.object().value("hits").toArray();
-    for(auto packRaw : packs) {
-        auto packObj = packRaw.toObject();
-
-        Modrinth::IndexedPack pack;
-        try
-        {
-            Modrinth::loadIndexedPack(pack, packObj);
-            newList.append(pack);
-        }
-        catch(const JSONValidationError &e)
-        {
-            qWarning() << "Error while loading mod from Modrinth: " << e.cause();
-            continue;
-        }
-    }
-    if(packs.size() < 25) {
-        searchState = Finished;
-    } else {
-        nextSearchOffset += 25;
-        searchState = CanPossiblyFetchMore;
-    }
-    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
-    modpacks.append(newList);
-    endInsertRows();
+    Modrinth::loadIndexedPackVersions(m, arr, APPLICATION->network(), m_parent->m_instance);
 }
 
-void Modrinth::ListModel::searchRequestFailed(QString reason)
+auto ListModel::documentToArray(QJsonDocument& obj) const -> QJsonArray
 {
-    if(jobPtr->first()->m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 409){
-        //409 Gone, notify user to update
-        QMessageBox::critical(nullptr, tr("Error"), tr("Modrinth API version too old!\nPlease update PolyMC!"));
-        //self-destruct
-        ((ModDownloadDialog *)((ModrinthPage *)parent())->parentWidget())->reject();
-    }
-    jobPtr.reset();
-
-    if(searchState == ResetRequested) {
-        beginResetModel();
-        modpacks.clear();
-        endResetModel();
-
-        nextSearchOffset = 0;
-        performPaginatedSearch();
-    } else {
-        searchState = Finished;
-    }
-}
-
+    return obj.object().value("hits").toArray();
 }
 
+}  // namespace Modrinth
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthModel.h b/launcher/ui/pages/modplatform/modrinth/ModrinthModel.h
index 53f1f134..45a6090a 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthModel.h
+++ b/launcher/ui/pages/modplatform/modrinth/ModrinthModel.h
@@ -1,79 +1,25 @@
 #pragma once
 
-#include <RWStorage.h>
-
-#include <QAbstractListModel>
-#include <QSortFilterProxyModel>
-#include <QThreadPool>
-#include <QIcon>
-#include <QStyledItemDelegate>
-#include <QList>
-#include <QString>
-#include <QStringList>
-#include <QMetaType>
-
-#include <functional>
-#include <net/NetJob.h>
-
-#include <modplatform/flame/FlamePackIndex.h>
-#include "modplatform/modrinth/ModrinthPackIndex.h"
-#include "BaseInstance.h"
 #include "ModrinthPage.h"
 
 namespace Modrinth {
 
-
-typedef QMap<QString, QIcon> LogoMap;
-typedef std::function<void(QString)> LogoCallback;
-
-class ListModel : public QAbstractListModel
-{
+class ListModel : public ModPlatform::ListModel {
     Q_OBJECT
 
-public:
-    ListModel(ModrinthPage *parent);
-    virtual ~ListModel();
-
-    int rowCount(const QModelIndex &parent) const override;
-    int columnCount(const QModelIndex &parent) const override;
-    QVariant data(const QModelIndex &index, int role) const override;
-    Qt::ItemFlags flags(const QModelIndex &index) const override;
-    bool canFetchMore(const QModelIndex & parent) const override;
-    void fetchMore(const QModelIndex & parent) override;
-
-    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
-    void searchWithTerm(const QString &term, const int sort);
-
-private slots:
-    void performPaginatedSearch();
-
-    void logoFailed(QString logo);
-    void logoLoaded(QString logo, QIcon out);
-
-    void searchRequestFinished();
-    void searchRequestFailed(QString reason);
-
-private:
-    void requestLogo(QString file, QString url);
+   public:
+    ListModel(ModrinthPage* parent) : ModPlatform::ListModel(parent){};
+    ~ListModel() override = default;
 
-private:
-    QList<IndexedPack> modpacks;
-    QStringList m_failedLogos;
-    QStringList m_loadingLogos;
-    LogoMap m_logoMap;
-    QMap<QString, LogoCallback> waitingCallbacks;
+   private:
+    void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj) override;
+    void loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr) override;
+    
+    auto documentToArray(QJsonDocument& obj) const -> QJsonArray override;
 
-    QString currentSearchTerm;
-    int currentSort = 0;
-    int nextSearchOffset = 0;
-    enum SearchState {
-        None,
-        CanPossiblyFetchMore,
-        ResetRequested,
-        Finished
-    } searchState = None;
-    NetJob::Ptr jobPtr;
-    QByteArray response;
+    // NOLINTNEXTLINE(modernize-avoid-c-arrays)
+    static const char* sorts[5];
+    inline auto getSorts() const -> const char** override { return sorts; };
 };
 
-}
+}  // namespace Modrinth
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp
index 82340448..ddaf96e2 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp
+++ b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp
@@ -34,211 +34,38 @@
  */
 
 #include "ModrinthPage.h"
-#include "ui_ModrinthPage.h"
+#include "ui_ModPage.h"
 
-#include <QKeyEvent>
-
-#include "Application.h"
-#include "InstanceImportTask.h"
-#include "Json.h"
-#include "ModDownloadTask.h"
 #include "ModrinthModel.h"
-#include "minecraft/MinecraftInstance.h"
-#include "minecraft/PackProfile.h"
 #include "ui/dialogs/ModDownloadDialog.h"
 
-ModrinthPage::ModrinthPage(ModDownloadDialog *dialog, BaseInstance *instance)
-    : QWidget(dialog), m_instance(instance), ui(new Ui::ModrinthPage),
-      dialog(dialog) {
-  ui->setupUi(this);
-  connect(ui->searchButton, &QPushButton::clicked, this,
-          &ModrinthPage::triggerSearch);
-  ui->searchEdit->installEventFilter(this);
-  listModel = new Modrinth::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 modrinth api
-  ui->sortByBox->addItem(tr("Sort by Relevance"));
-  ui->sortByBox->addItem(tr("Sort by Downloads"));
-  ui->sortByBox->addItem(tr("Sort by Follows"));
-  ui->sortByBox->addItem(tr("Sort by last updated"));
-  ui->sortByBox->addItem(tr("Sort by newest"));
-
-  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);
-  connect(ui->modSelectionButton, &QPushButton::clicked, this,
-          &ModrinthPage::onModSelected);
-}
-
-ModrinthPage::~ModrinthPage() { delete ui; }
-
-bool ModrinthPage::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 ModrinthPage::shouldDisplay() const { return true; }
-
-void ModrinthPage::retranslate() {
-    ui->retranslateUi(this);
-}
-
-void ModrinthPage::openedImpl() {
-  updateSelectionButton();
-  triggerSearch();
-}
-
-void ModrinthPage::triggerSearch() {
-  listModel->searchWithTerm(ui->searchEdit->text(),
-                            ui->sortByBox->currentIndex());
-}
-
-void ModrinthPage::onSelectionChanged(QModelIndex first, QModelIndex second) {
-  ui->versionSelectionBox->clear();
-
-  if (!first.isValid()) {
-    return;
-  }
-
-  current = listModel->data(first, Qt::UserRole).value<Modrinth::IndexedPack>();
-  QString text = "";
-  QString name = current.name;
-
-  if (current.websiteUrl.isEmpty())
-    text = name;
-  else
-    text = "<a href=\"" + current.websiteUrl + "\">" + name + "</a>";
-  text += "<br>" + tr(" by ") + "<a href=\"" + current.author.url + "\">" +
-          current.author.name + "</a><br><br>";
-  ui->packDescription->setHtml(text + current.description);
-
-  if (!current.versionsLoaded) {
-    qDebug() << "Loading Modrinth mod versions";
-
-    ui->modSelectionButton->setText(tr("Loading versions..."));
-    ui->modSelectionButton->setEnabled(false);
-
-    auto netJob =
-        new NetJob(QString("Modrinth::ModVersions(%1)").arg(current.name),
-                   APPLICATION->network());
-    auto response = new QByteArray();
-    QString addonId = current.addonId;
-    netJob->addNetAction(Net::Download::makeByteArray(
-        QString("https://api.modrinth.com/v2/project/%1/version").arg(addonId),
-        response));
-
-    QObject::connect(netJob, &NetJob::succeeded, this, [this, response, addonId] {
-        if(addonId != current.addonId){
-            return;
-        }
-      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;
-      }
-      QJsonArray arr = doc.array();
-      try {
-        Modrinth::loadIndexedPackVersions(current, arr, APPLICATION->network(),
-                                          m_instance);
-      } catch (const JSONValidationError &e) {
-        qDebug() << *response;
-        qWarning() << "Error while reading Modrinth mod version: " << e.cause();
-      }
-      auto packProfile = ((MinecraftInstance *)m_instance)->getPackProfile();
-      QString mcVersion = packProfile->getComponentVersion("net.minecraft");
-      QString loaderString =
-          (packProfile->getComponentVersion("net.minecraftforge").isEmpty())
-              ? "fabric"
-              : "forge";
-      for (int i = 0; i < current.versions.size(); i++) {
-        auto version = current.versions[i];
-        if (!version.mcVersion.contains(mcVersion) ||
-            !version.loaders.contains(loaderString)) {
-          continue;
-        }
-        ui->versionSelectionBox->addItem(version.version, QVariant(i));
-      }
-      if (ui->versionSelectionBox->count() == 0) {
-        ui->versionSelectionBox->addItem(tr("No valid version found."),
-                                         QVariant(-1));
-      }
-
-      ui->modSelectionButton->setText(tr("Cannot select invalid version :("));
-      updateSelectionButton();
-    });
-
-    QObject::connect(netJob, &NetJob::finished, this, [response, netJob] {
-      netJob->deleteLater();
-      delete response;
-    });
-
-    netJob->start();
-  } else {
-    for (int i = 0; i < current.versions.size(); i++) {
-      ui->versionSelectionBox->addItem(current.versions[i].version,
-                                       QVariant(i));
-    }
-    if (ui->versionSelectionBox->count() == 0) {
-      ui->versionSelectionBox->addItem(tr("No valid version found."),
-                                       QVariant(-1));
-    }
-
-    updateSelectionButton();
-  }
-}
-
-void ModrinthPage::updateSelectionButton() {
-  if (!isOpened || selectedVersion < 0) {
-    ui->modSelectionButton->setEnabled(false);
-    return;
-  }
-
-  ui->modSelectionButton->setEnabled(true);
-  auto &version = current.versions[selectedVersion];
-  if (!dialog->isModSelected(current.name, version.fileName)) {
-    ui->modSelectionButton->setText(tr("Select mod for download"));
-  } else {
-    ui->modSelectionButton->setText(tr("Deselect mod for download"));
-  }
+ModrinthPage::ModrinthPage(ModDownloadDialog* dialog, BaseInstance* instance)
+    : ModPage(dialog, instance, new ModrinthAPI())
+{
+    listModel = new Modrinth::ListModel(this);
+    ui->packView->setModel(listModel);
+
+    // index is used to set the sorting with the modrinth api
+    ui->sortByBox->addItem(tr("Sort by Relevence"));
+    ui->sortByBox->addItem(tr("Sort by Downloads"));
+    ui->sortByBox->addItem(tr("Sort by Follows"));
+    ui->sortByBox->addItem(tr("Sort by last updated"));
+    ui->sortByBox->addItem(tr("Sort by newest"));
+
+    // sometimes Qt just ignores virtual slots and doesn't work as intended it seems, 
+    // so it's best not to connect them in the parent's contructor...
+    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);
+    connect(ui->modSelectionButton, &QPushButton::clicked, this, &ModrinthPage::onModSelected);
 }
 
-void ModrinthPage::onVersionSelectionChanged(QString data) {
-  if (data.isNull() || data.isEmpty()) {
-    selectedVersion = -1;
-    return;
-  }
-  selectedVersion = ui->versionSelectionBox->currentData().toInt();
-  updateSelectionButton();
+auto ModrinthPage::validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer) const -> bool
+{
+    return ver.mcVersion.contains(mineVer) && ver.loaders.contains(loaderVer);
 }
 
-void ModrinthPage::onModSelected() {
-  auto &version = current.versions[selectedVersion];
-  if (dialog->isModSelected(current.name, version.fileName)) {
-    dialog->removeSelectedMod(current.name);
-  } else {
-    dialog->addSelectedMod(current.name,
-                           new ModDownloadTask(version.downloadUrl,
-                                               version.fileName, dialog->mods));
-  }
-
-  updateSelectionButton();
-}
+// I don't know why, but doing this on the parent class makes it so that
+// other mod providers start loading before being selected, at least with
+// my Qt, so we need to implement this in every derived class...
+auto ModrinthPage::shouldDisplay() const -> bool { return true; }
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h
index 92955d62..aa5ed793 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h
+++ b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h
@@ -35,70 +35,26 @@
 
 #pragma once
 
-#include <QWidget>
+#include "ui/pages/modplatform/ModPage.h"
 
-#include "ui/pages/BasePage.h"
-#include <Application.h>
-#include "tasks/Task.h"
-#include "modplatform/modrinth/ModrinthPackIndex.h"
+#include "modplatform/modrinth/ModrinthAPI.h"
 
-namespace Ui
-{
-class ModrinthPage;
-}
-
-class ModDownloadDialog;
-
-namespace Modrinth {
-    class ListModel;
-}
-
-class ModrinthPage : public QWidget, public BasePage
-{
+class ModrinthPage : public ModPage {
     Q_OBJECT
 
-public:
-    explicit ModrinthPage(ModDownloadDialog *dialog, BaseInstance *instance);
-    virtual ~ModrinthPage();
-    virtual QString displayName() const override
-    {
-        return "Modrinth";
-    }
-    virtual QIcon icon() const override
-    {
-        return APPLICATION->getThemedIcon("modrinth");
-    }
-    virtual QString id() const override
-    {
-        return "modrinth";
-    }
-    virtual QString helpPage() const override
-    {
-        return "Modrinth-platform";
-    }
-    virtual bool shouldDisplay() const override;
-    void retranslate() override;
-
-    void openedImpl() override;
-
-    bool eventFilter(QObject * watched, QEvent * event) override;
-
-    BaseInstance *m_instance;
+   public:
+    explicit ModrinthPage(ModDownloadDialog* dialog, BaseInstance* instance);
+    ~ModrinthPage() override = default;
 
-private:
-    void updateSelectionButton();
+    inline auto displayName() const -> QString override { return "Modrinth"; }
+    inline auto icon() const -> QIcon override { return APPLICATION->getThemedIcon("modrinth"); }
+    inline auto id() const -> QString override { return "modrinth"; }
+    inline auto helpPage() const -> QString override { return "Modrinth-platform"; }
 
-private slots:
-    void triggerSearch();
-    void onSelectionChanged(QModelIndex first, QModelIndex second);
-    void onVersionSelectionChanged(QString data);
-    void onModSelected();
+    inline auto debugName() const -> QString override { return "Modrinth"; }
+    inline auto metaEntryBase() const -> QString override { return "ModrinthPacks"; };
 
-private:
-    Ui::ModrinthPage *ui = nullptr;
-    ModDownloadDialog* dialog = nullptr;
-    Modrinth::ListModel* listModel = nullptr;
-    Modrinth::IndexedPack current;
+    auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer = "") const -> bool override;
 
-    int selectedVersion = -1;
+    auto shouldDisplay() const -> bool override;
 };