DD4hepTestsHelper.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2023 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/Definitions/Algebra.hpp"
#include "Acts/Geometry/GeometryContext.hpp"

#include <string>

#include <DD4hep/DetFactoryHelper.h>
#include <DD4hep/Objects.h>
#include <XML/Utilities.h>

using namespace std;
using namespace dd4hep;

namespace Acts {
class Surface;
}  // namespace Acts

namespace DD4hepTestsHelper {

template <typename T>
T& ensureExtension(dd4hep::DetElement& elt) {
  T* ext = elt.extension<T>(false);
  if (ext == nullptr) {
    ext = new T();
  }
  elt.addExtension<T>(ext);
  return *ext;
}

Transform3D createTransform(const xml_comp_t& x_det_comp);

std::string transformToXML(const Acts::Transform3& tf,
                           const std::array<int, 2u>& axes = {0, 1});

std::string surfaceToXML(const Acts::GeometryContext& gctx,
                         const Acts::Surface& surface,
                         const Acts::Transform3& ref);

}  // namespace DD4hepTestsHelper