feat(RD): add texture pack downloader

This extends the resource pack downloader, with the custom behavior of
filtering the versions that shows up, to those <= 1.6. As always, Flame
is funky and requires a bit more workarounds than average.

This will also get a nice improvement when the Version parsing and
comparison PR gets merged! :D

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/ui/pages/modplatform/flame/FlameResourceModels.cpp

@@ -57,5 +57,63 @@ auto FlameResourcePackModel::documentToArray(QJsonDocument& obj) const -> QJsonA
     return Json::ensureArray(obj.object(), "data");
 }
 
+FlameTexturePackModel::FlameTexturePackModel(const BaseInstance& base) : TexturePackResourceModel(base, new FlameAPI) {}
+
+void FlameTexturePackModel::loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj)
+{
+    FlameMod::loadIndexedPack(m, obj);
+}
+
+// We already deal with the URLs when initializing the pack, due to the API response's structure
+void FlameTexturePackModel::loadExtraPackInfo(ModPlatform::IndexedPack& m, QJsonObject& obj)
+{
+    FlameMod::loadBody(m, obj);
+}
+
+void FlameTexturePackModel::loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr)
+{
+    FlameMod::loadIndexedPackVersions(m, arr, APPLICATION->network(), &m_base_instance);
+
+    QVector<ModPlatform::IndexedVersion> filtered_versions(m.versions.size());
+
+    // FIXME: Client-side version filtering. This won't take into account any user-selected filtering.
+    for (auto const& version : m.versions) {
+        auto const& mc_versions = version.mcVersion;
+
+        if (std::any_of(mc_versions.constBegin(), mc_versions.constEnd(),
+                        [this](auto const& mc_version){ return Version(mc_version) <= maximumTexturePackVersion(); }))
+            filtered_versions.push_back(version);
+    }
+
+    m.versions = filtered_versions;
+}
+
+ResourceAPI::SearchArgs FlameTexturePackModel::createSearchArguments()
+{
+    auto args = TexturePackResourceModel::createSearchArguments();
+
+    auto profile = static_cast<const MinecraftInstance&>(m_base_instance).getPackProfile();
+    QString instance_minecraft_version = profile->getComponentVersion("net.minecraft");
+
+    // Bypass the texture pack logic, because we can't do multiple versions in the API query
+    args.versions = { instance_minecraft_version };
+
+    return args;
+}
+
+ResourceAPI::VersionSearchArgs FlameTexturePackModel::createVersionsArguments(QModelIndex& entry)
+{
+    auto args = TexturePackResourceModel::createVersionsArguments(entry);
+
+    // Bypass the texture pack logic, because we can't do multiple versions in the API query
+    args.mcVersions = {};
+
+    return args;
+}
+
+auto FlameTexturePackModel::documentToArray(QJsonDocument& obj) const -> QJsonArray
+{
+    return Json::ensureArray(obj.object(), "data");
+}
 
 }  // namespace ResourceDownload