Pythia8.cpp

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// This file is part of the Acts project.
//
// Copyright (C) 2021 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/.

#include "Acts/Definitions/PdgParticle.hpp"
#include "Acts/Plugins/Python/Utilities.hpp"
#include "Acts/Utilities/Logger.hpp"
#include "ActsExamples/Generators/EventGenerator.hpp"
#include "ActsExamples/Generators/Pythia8ProcessGenerator.hpp"
#include "ActsExamples/Utilities/Range.hpp"

#include <memory>
#include <string>
#include <unordered_map>
#include <vector>

#include <pybind11/pybind11.h>
#include <pybind11/stl.h>

namespace py = pybind11;
using namespace ActsExamples;

namespace Acts::Python {
void addPythia8(Context& ctx) {
  auto mex = ctx.get("examples");

  auto p8 = mex.def_submodule("pythia8");
  ctx.modules["pythia8"] = p8;

  using Gen = ActsExamples::Pythia8Generator;
  auto gen = py::class_<Gen, ActsExamples::EventGenerator::ParticlesGenerator,
                        std::shared_ptr<Gen>>(p8, "Pythia8Generator")
                 .def(py::init<const Gen::Config&, Acts::Logging::Level>(),
                      py::arg("config"), py::arg("level"));

  py::class_<Gen::Config>(gen, "Config")
      .def(py::init<>())
      .def_readwrite("pdgBeam0", &Gen::Config::pdgBeam0)
      .def_readwrite("pdgBeam1", &Gen::Config::pdgBeam1)
      .def_readwrite("cmsEnergy", &Gen::Config::cmsEnergy)
      .def_readwrite("settings", &Gen::Config::settings)
      .def_readwrite("printShortEventListing",
                     &Gen::Config::printShortEventListing)
      .def_readwrite("printLongEventListing",
                     &Gen::Config::printLongEventListing);

  patchClassesWithConfig(p8);
}
}  // namespace Acts::Python