// Copyright CERN and copyright holders of ALICE O2. This software is

// distributed under the terms of the GNU General Public License v3 (GPL

// Version 3), copied verbatim in the file "COPYING".

//

// See http://alice-o2.web.cern.ch/license for full licensing information.

//

// In applying this license CERN does not waive the privileges and immunities

// granted to it by virtue of its status as an Intergovernmental Organization

// or submit itself to any jurisdiction.

///

/// \file ConfigurationManager.cxx

/// \author Jeremi Niedziela

///

#include "EventVisualisationBase/ConfigurationManager.h"

#include "FairLogger.h"

#include <TSystem.h>

using namespace std;

namespace o2

{

namespace event_visualisation

{

ConfigurationManager& ConfigurationManager::getInstance()

{

static ConfigurationManager instance;

return instance;

}

void ConfigurationManager::getConfig(TEnv& settings) const

{

TString fileName;

if (settings.ReadFile(fileName = ".o2eve_config", kEnvUser) < 0) {

LOG(WARN) << "could not find .o2eve_config in working directory! Trying .o2eve_config in home directory";

if (settings.ReadFile(fileName = Form("%s/.o2eve_config", gSystem->Getenv("HOME")), kEnvUser) < 0) {

LOG(WARN) << "could not find .o2eve_config in home directory! Trying o2eve_config in home directory";

if (settings.ReadFile(fileName = Form("%s/o2eve_config", gSystem->Getenv("HOME")), kEnvUser) < 0) {

LOG(WARN) << "could not find o2eve_config in home directory! Trying o2eve_config in O2/EventVisualisation";

if (settings.ReadFile(fileName = Form("%s/EventVisualisation/o2eve_config",

gSystem->Getenv("ALICEO2_INSTALL_PATH")),

kEnvUser) < 0) {

LOG(FATAL) << "could not find .o2eve_config or o2eve_config file!.";

exit(0);

}

}

}

}

LOG(INFO) << Form("using %s config settings", fileName.Data());

}

} // namespace event_visualisation

} // namespace o2