refactor: abstract metadata handling and clarify names

launcher/minecraft/mod/MetadataHandler.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <memory>
+
+#include "modplatform/packwiz/Packwiz.h"
+
+// launcher/minecraft/mod/Mod.h
+class Mod;
+
+/* Abstraction file for easily changing the way metadata is stored / handled
+ * Needs to be a class because of -Wunused-function and no C++17 [[maybe_unused]]
+ * */
+class Metadata {
+   public:
+    using ModStruct = Packwiz::V1::Mod;
+
+    static auto create(QDir& index_dir, ModPlatform::IndexedPack& mod_pack, ModPlatform::IndexedVersion& mod_version) -> ModStruct
+    {
+        return Packwiz::V1::createModFormat(index_dir, mod_pack, mod_version);
+    }
+
+    static auto create(QDir& index_dir, Mod& internal_mod) -> ModStruct
+    {
+        return Packwiz::V1::createModFormat(index_dir, internal_mod);
+    }
+
+    static void update(QDir& index_dir, ModStruct& mod)
+    {
+        Packwiz::V1::updateModIndex(index_dir, mod);
+    }
+
+    static void remove(QDir& index_dir, QString& mod_name)
+    {
+        Packwiz::V1::deleteModIndex(index_dir, mod_name);
+    }
+
+    static auto get(QDir& index_dir, QString& mod_name) -> ModStruct
+    {
+        return Packwiz::V1::getIndexForMod(index_dir, mod_name);
+    }
+};