[Assets] Making AssetCatalog an AppComponent

src/Nazara/Core/AssetCatalogAppComponent.cpp

@@ -0,0 +1,52 @@
+
+#include <Nazara/Core/AssetCatalogAppComponent.hpp>
+#include <Nazara/Core/Serialization.hpp>
+
+namespace Nz
+{
+	bool Serialize(SerializationContext& context, const AssetHeaderLite& header, TypeTag<AssetHeaderLite>)
+	{
+		Serialize(context, "name", header.name);
+		Serialize(context, "path", header.path);
+		return true;
+	}
+
+	bool Unserialize(SerializationContext& context, AssetHeaderLite* header, TypeTag<AssetHeaderLite>)
+	{
+		Unserialize(context, "name", &header->name);
+		Unserialize(context, "path", &header->path);
+		return true;
+	}
+
+	void AddFile(std::set<AssetHeaderLite>& container, Nz::Stream& stream)
+	{
+		AssetHeaderLite header;
+		auto json = JsonSerializationContext::LoadFromStream(stream);
+		if (!json)
+			return;
+
+		if (!Unserialize(*json, "", &header))
+			return;
+
+		header.path = stream.GetPath();
+		container.insert(header);
+	}
+
+	void AssetCatalogAppComponent::AddFolder(std::string_view folder)
+	{
+		auto& fs = GetApp().GetComponent<FilesystemAppComponent>();
+		auto directory = fs.GetDirectory(folder);
+		if (!directory)
+			return;
+
+		directory->Foreach([&](std::string_view, const VirtualDirectory::Entry& entry) {
+			if (std::holds_alternative<VirtualDirectory::FileEntry>(entry))
+			{
+				auto& file = std::get<VirtualDirectory::FileEntry>(entry);
+
+				if (file.stream->GetPath().extension() == ".nzasset")
+					AddFile(m_assets, *file.stream.get());
+			}
+		}, true);
+	}
+}