FVersion FRiderPathLocator::GetLastBuildVersion()

in Source/RiderSourceCodeAccess/Private/RiderPathLocator/Common/RiderPathLocator.cpp [65:89]

• 19 lines of code
• 9 McCabe index (conditional complexity)

FVersion FRiderPathLocator::GetLastBuildVersion(const FString& HistoryJsonPath)
{
	if(!FPaths::FileExists(HistoryJsonPath)) return {};
	
	FString JsonStr;
	FFileHelper::LoadFileToString(JsonStr, *HistoryJsonPath);
	const TSharedRef<TJsonReader<TCHAR>> JsonReader = TJsonReaderFactory<TCHAR>::Create(JsonStr);
	TSharedPtr<FJsonObject> JsonObject = MakeShareable(new FJsonObject());
	if (!FJsonSerializer::Deserialize(JsonReader, JsonObject) || !JsonObject.IsValid()) return {};
	
	const TArray< TSharedPtr<FJsonValue> >* HistoryField;
	if(!JsonObject->TryGetArrayField(TEXT("history"), HistoryField)) return {};
	if(HistoryField->Num() == 0) return {};

	const TSharedPtr<FJsonObject>* LastItemObject;
	if(!HistoryField->Last()->TryGetObject(LastItemObject)) return {};

	const TSharedPtr<FJsonObject>* ItemObject;
	if(!LastItemObject->Get()->TryGetObjectField("item", ItemObject)) return {};

	FString Build;
	if(!ItemObject->Get()->TryGetStringField("build", Build)) return {};

	return FVersion(Build);
}