refactor(RD): clear up sorting methods

This refactors the sorting methods to join every bit of it into a single
list, easing maintanance. It also removes the weird index contraint on
the list of methods by adding an index field to the DS that holds the
method.

Lastly, it puts the available methods on their respective API, so other
resources on the same API can re-use them later on.

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

launcher/modplatform/ResourceAPI.h

@@ -54,12 +54,23 @@ class ResourceAPI {
     enum ModLoaderType { Forge = 1 << 0, Cauldron = 1 << 1, LiteLoader = 1 << 2, Fabric = 1 << 3, Quilt = 1 << 4 };
     Q_DECLARE_FLAGS(ModLoaderTypes, ModLoaderType)
 
+    struct SortingMethod {
+        // The index of the sorting method. Used to allow for arbitrary ordering in the list of methods.
+        // Used by Flame in the API request.
+        unsigned int index;
+        // The real name of the sorting, as used in the respective API specification.
+        // Used by Modrinth in the API request.
+        QString name;
+        // The human-readable name of the sorting, used for display in the UI.
+        QString readable_name;
+    };
+
     struct SearchArgs {
         ModPlatform::ResourceType type{};
         int offset = 0;
 
         std::optional<QString> search;
-        std::optional<QString> sorting;
+        std::optional<SortingMethod> sorting;
         std::optional<ModLoaderTypes> loaders;
         std::optional<std::list<Version> > versions;
     };
@@ -95,6 +106,10 @@ class ResourceAPI {
         std::function<void(QJsonDocument&, ModPlatform::IndexedPack&)> on_succeed;
     };
 
+   public:
+    /** Gets a list of available sorting methods for this API. */
+    [[nodiscard]] virtual auto getSortingMethods() const -> QList<SortingMethod> = 0;
+
    public slots:
     [[nodiscard]] virtual NetJob::Ptr searchProjects(SearchArgs&&, SearchCallbacks&&) const
     {

launcher/modplatform/flame/FlameAPI.cpp

@@ -212,3 +212,18 @@ NetJob::Ptr FlameAPI::getFiles(const QStringList& fileIds, QByteArray* response)
 
     return netJob;
 }
+
+// https://docs.curseforge.com/?python#tocS_ModsSearchSortField
+static QList<ResourceAPI::SortingMethod> s_sorts = { { 1, "Featured", QObject::tr("Sort by Featured") },
+                                                     { 2, "Popularity", QObject::tr("Sort by Popularity") },
+                                                     { 3, "LastUpdated", QObject::tr("Sort by Last Updated") },
+                                                     { 4, "Name", QObject::tr("Sort by Name") },
+                                                     { 5, "Author", QObject::tr("Sort by Author") },
+                                                     { 6, "TotalDownloads", QObject::tr("Sort by Downloads") },
+                                                     { 7, "Category", QObject::tr("Sort by Category") },
+                                                     { 8, "GameVersion", QObject::tr("Sort by Game Version") } };
+
+QList<ResourceAPI::SortingMethod> FlameAPI::getSortingMethods() const
+{
+    return s_sorts;
+}

launcher/modplatform/flame/FlameAPI.h

@@ -14,20 +14,9 @@ class FlameAPI : public NetworkResourceAPI {
     NetJob::Ptr matchFingerprints(const QList<uint>& fingerprints, QByteArray* response);
     NetJob::Ptr getFiles(const QStringList& fileIds, QByteArray* response) const;
 
-   private:
+    [[nodiscard]] auto getSortingMethods() const -> QList<ResourceAPI::SortingMethod> override;
-    static int getSortFieldInt(QString const& sortString)
-    {
-        return sortString == "Featured"         ? 1
-               : sortString == "Popularity"     ? 2
-               : sortString == "LastUpdated"    ? 3
-               : sortString == "Name"           ? 4
-               : sortString == "Author"         ? 5
-               : sortString == "TotalDownloads" ? 6
-               : sortString == "Category"       ? 7
-               : sortString == "GameVersion"    ? 8
-                                                : 1;
-    }
 
+   private:
     static int getClassId(ModPlatform::ResourceType type)
     {
         switch (type) {
@@ -62,7 +51,7 @@ class FlameAPI : public NetworkResourceAPI {
         if (args.search.has_value())
             get_arguments.append(QString("searchFilter=%1").arg(args.search.value()));
         if (args.sorting.has_value())
-            get_arguments.append(QString("sortField=%1").arg(getSortFieldInt(args.sorting.value())));
+            get_arguments.append(QString("sortField=%1").arg(args.sorting.value().index));
         get_arguments.append("sortOrder=desc");
         if (args.loaders.has_value())
             get_arguments.append(QString("modLoaderType=%1").arg(getMappedModLoader(args.loaders.value())));

launcher/modplatform/modrinth/ModrinthAPI.cpp

@@ -112,3 +112,15 @@ NetJob::Ptr ModrinthAPI::getProjects(QStringList addonIds, QByteArray* response)
 
     return netJob;
 }
+
+// https://docs.modrinth.com/api-spec/#tag/projects/operation/searchProjects
+static QList<ResourceAPI::SortingMethod> s_sorts = { { 1, "relevance", QObject::tr("Sort by Relevance") },
+                                                     { 2, "downloads", QObject::tr("Sort by Downloads") },
+                                                     { 3, "follows", QObject::tr("Sort by Follows") },
+                                                     { 4, "newest", QObject::tr("Sort by Last Updated") },
+                                                     { 5, "updated", QObject::tr("Sort by Newest") } };
+
+QList<ResourceAPI::SortingMethod> ModrinthAPI::getSortingMethods() const
+{
+    return s_sorts;
+}

launcher/modplatform/modrinth/ModrinthAPI.h

@@ -49,6 +49,8 @@ class ModrinthAPI : public NetworkResourceAPI {
     NetJob::Ptr getProjects(QStringList addonIds, QByteArray* response) const override;
 
    public:
+    [[nodiscard]] auto getSortingMethods() const -> QList<ResourceAPI::SortingMethod> override;
+
     inline auto getAuthorURL(const QString& name) const -> QString { return "https://modrinth.com/user/" + name; };
 
     static auto getModLoaderStrings(const ModLoaderTypes types) -> const QStringList
@@ -116,7 +118,7 @@ class ModrinthAPI : public NetworkResourceAPI {
         if (args.search.has_value())
             get_arguments.append(QString("query=%1").arg(args.search.value()));
         if (args.sorting.has_value())
-            get_arguments.append(QString("index=%1").arg(args.sorting.value()));
+            get_arguments.append(QString("index=%1").arg(args.sorting.value().name));
         get_arguments.append(QString("facets=%1").arg(createFacets(args)));
 
         return BuildConfig.MODRINTH_PROD_URL + "/search?" + get_arguments.join('&');

launcher/ui/pages/modplatform/ModModel.cpp

@@ -21,11 +21,22 @@ ResourceAPI::SearchArgs ModModel::createSearchArguments()
     Q_ASSERT(m_filter);
 
     std::optional<std::list<Version>> versions{};
+    std::optional<ResourceAPI::SortingMethod> sort{};
+
+    { // Version filter
         if (!m_filter->versions.empty())
             versions = m_filter->versions;
+    }
 
-    return { ModPlatform::ResourceType::MOD, m_next_search_offset,     m_search_term,
+    { // Sorting method
-             getSorts()[currentSort],        profile->getModLoaders(), versions };
+        auto sorting_methods = getSortingMethods();
+        auto method = std::find_if(sorting_methods.begin(), sorting_methods.end(),
+                [this](auto const& e) { return m_current_sort_index == e.index; });
+        if (method != sorting_methods.end())
+            sort = *method;
+    }
+
+    return { ModPlatform::ResourceType::MOD, m_next_search_offset, m_search_term, sort, profile->getModLoaders(), versions };
 }
 ResourceAPI::SearchCallbacks ModModel::createSearchCallbacks()
 {
@@ -73,14 +84,14 @@ ResourceAPI::ProjectInfoCallbacks ModModel::createInfoCallbacks(QModelIndex& ent
     } };
 }
 
-void ModModel::searchWithTerm(const QString& term, const int sort, const bool filter_changed)
+void ModModel::searchWithTerm(const QString& term, unsigned int sort, bool filter_changed)
 {
-    if (m_search_term == term && m_search_term.isNull() == term.isNull() && currentSort == sort && !filter_changed) {
+    if (m_search_term == term && m_search_term.isNull() == term.isNull() && m_current_sort_index == sort && !filter_changed) {
         return;
     }
 
     setSearchTerm(term);
-    currentSort = sort;
+    m_current_sort_index = sort;
 
     refresh();
 }

launcher/ui/pages/modplatform/ModModel.h

@@ -21,7 +21,7 @@ class ModModel : public ResourceModel {
     ModModel(const BaseInstance&, ResourceAPI* api);
 
     /* Ask the API for more information */
-    void searchWithTerm(const QString& term, const int sort, const bool filter_changed);
+    void searchWithTerm(const QString& term, unsigned int sort, bool filter_changed);
 
     virtual void loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj) = 0;
     virtual void loadExtraPackInfo(ModPlatform::IndexedPack& m, QJsonObject& obj) = 0;
@@ -46,11 +46,8 @@ class ModModel : public ResourceModel {
 
    protected:
     virtual auto documentToArray(QJsonDocument& obj) const -> QJsonArray = 0;
-    virtual auto getSorts() const -> const char** = 0;
 
    protected:
-    int currentSort = 0;
-
     std::shared_ptr<ModFilterWidget::Filter> m_filter = nullptr;
 };
 

launcher/ui/pages/modplatform/ModPage.cpp

@@ -100,7 +100,7 @@ void ModPage::triggerSearch()
         updateSelectionButton();
     }
 
-    static_cast<ModModel*>(m_model)->searchWithTerm(getSearchTerm(), m_ui->sortByBox->currentIndex(), changed);
+    static_cast<ModModel*>(m_model)->searchWithTerm(getSearchTerm(), m_ui->sortByBox->currentData().toUInt(), changed);
     m_fetch_progress.watch(&m_model->activeJob());
 }
 

launcher/ui/pages/modplatform/ResourceModel.h

@@ -6,7 +6,9 @@
 
 #include "QObjectPtr.h"
 #include "BaseInstance.h"
+
 #include "modplatform/ResourceAPI.h"
+
 #include "tasks/ConcurrentTask.h"
 
 class NetJob;
@@ -41,6 +43,8 @@ class ResourceModel : public QAbstractListModel {
     inline void addActiveJob(Task::Ptr ptr) { m_current_job.addTask(ptr); if (!m_current_job.isRunning()) m_current_job.start(); }
     inline Task const& activeJob() { return m_current_job; }
 
+    [[nodiscard]] auto getSortingMethods() const { return m_api->getSortingMethods(); }
+
    public slots:
     void fetchMore(const QModelIndex& parent) override;
     // NOTE: Can't use [[nodiscard]] here because of https://bugreports.qt.io/browse/QTBUG-58628 on Qt 5.12
@@ -83,6 +87,7 @@ class ResourceModel : public QAbstractListModel {
     enum class SearchState { None, CanFetchMore, ResetRequested, Finished } m_search_state = SearchState::None;
     int m_next_search_offset = 0;
     QString m_search_term;
+    unsigned int m_current_sort_index = 0;
 
     std::unique_ptr<ResourceAPI> m_api;
 

launcher/ui/pages/modplatform/ResourcePage.cpp

@@ -103,6 +103,17 @@ void ResourcePage::setSearchTerm(QString term)
     m_ui->searchEdit->setText(term);
 }
 
+void ResourcePage::addSortings()
+{
+    Q_ASSERT(m_model);
+
+    auto sorts = m_model->getSortingMethods();
+    std::sort(sorts.begin(), sorts.end(), [](auto const& l, auto const& r) { return l.index < r.index; });
+
+    for (auto&& sorting : sorts)
+        m_ui->sortByBox->addItem(sorting.readable_name, QVariant(sorting.index));
+}
+
 bool ResourcePage::setCurrentPack(ModPlatform::IndexedPack pack)
 {
     QVariant v;

launcher/ui/pages/modplatform/ResourcePage.h

@@ -52,14 +52,14 @@ class ResourcePage : public QWidget, public BasePage {
 
     [[nodiscard]] bool setCurrentPack(ModPlatform::IndexedPack);
     [[nodiscard]] auto getCurrentPack() const -> ModPlatform::IndexedPack;
-
     [[nodiscard]] auto getDialog() const -> const ResourceDownloadDialog* { return m_parent_dialog; }
-
     [[nodiscard]] auto getModel() const -> ResourceModel* { return m_model; }
 
    protected:
     ResourcePage(ResourceDownloadDialog* parent, BaseInstance&);
 
+    void addSortings();
+
    public slots:
     virtual void updateUi();
     virtual void updateSelectionButton();

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

@@ -7,9 +7,6 @@
 
 namespace ResourceDownload {
 
-// NOLINTNEXTLINE(modernize-avoid-c-arrays)
-const char* FlameModModel::sorts[6]{ "Featured", "Popularity", "LastUpdated", "Name", "Author", "TotalDownloads" };
-
 FlameModModel::FlameModModel(BaseInstance const& base) : ModModel(base, new FlameAPI) {}
 
 void FlameModModel::loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj)

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

@@ -21,10 +21,6 @@ class FlameModModel : public ModModel {
     void loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr) override;
 
     auto documentToArray(QJsonDocument& obj) const -> QJsonArray override;
-
-    // NOLINTNEXTLINE(modernize-avoid-c-arrays)
-    static const char* sorts[6]; 
-    inline auto getSorts() const -> const char** override { return sorts; };
 };
 
 }  // namespace ResourceDownload

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

@@ -48,13 +48,7 @@ FlameModPage::FlameModPage(ModDownloadDialog* dialog, BaseInstance& instance)
     m_model = new FlameModModel(instance);
     m_ui->packView->setModel(m_model);
 
-    // index is used to set the sorting with the flame api
+    addSortings();
-    m_ui->sortByBox->addItem(tr("Sort by Featured"));
-    m_ui->sortByBox->addItem(tr("Sort by Popularity"));
-    m_ui->sortByBox->addItem(tr("Sort by Last Updated"));
-    m_ui->sortByBox->addItem(tr("Sort by Name"));
-    m_ui->sortByBox->addItem(tr("Sort by Author"));
-    m_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...

launcher/ui/pages/modplatform/modrinth/ModrinthResourceModels.cpp

@@ -23,9 +23,6 @@
 
 namespace ResourceDownload {
 
-// NOLINTNEXTLINE(modernize-avoid-c-arrays)
-const char* ModrinthModModel::sorts[5]{ "relevance", "downloads", "follows", "updated", "newest" };
-
 ModrinthModModel::ModrinthModModel(BaseInstance const& base) : ModModel(base, new ModrinthAPI) {}
 
 void ModrinthModModel::loadIndexedPack(ModPlatform::IndexedPack& m, QJsonObject& obj)

launcher/ui/pages/modplatform/modrinth/ModrinthResourceModels.h

@@ -41,10 +41,6 @@ class ModrinthModModel : public ModModel {
     void loadIndexedPackVersions(ModPlatform::IndexedPack& m, QJsonArray& arr) override;
 
     auto documentToArray(QJsonDocument& obj) const -> QJsonArray override;
-
-    // NOLINTNEXTLINE(modernize-avoid-c-arrays)
-    static const char* sorts[5];
-    inline auto getSorts() const -> const char** override { return sorts; };
 };
 
 }  // namespace ResourceDownload

launcher/ui/pages/modplatform/modrinth/ModrinthResourcePages.cpp

@@ -50,12 +50,7 @@ ModrinthModPage::ModrinthModPage(ModDownloadDialog* dialog, BaseInstance& instan
     m_model = new ModrinthModModel(instance);
     m_ui->packView->setModel(m_model);
 
-    // index is used to set the sorting with the modrinth api
+    addSortings();
-    m_ui->sortByBox->addItem(tr("Sort by Relevance"));
-    m_ui->sortByBox->addItem(tr("Sort by Downloads"));
-    m_ui->sortByBox->addItem(tr("Sort by Follows"));
-    m_ui->sortByBox->addItem(tr("Sort by Last Updated"));
-    m_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 constructor...