/****************************************************************************
 *   This file is part of the aGrUM/pyAgrum library.                        *
 *                                                                          *
 *   Copyright (c) 2005-2026 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
 *                                                                          *
 *   The aGrUM/pyAgrum library is free software; you can redistribute it    *
 *   and/or modify it under the terms of either :                           *
 *                                                                          *
 *    - the GNU Lesser General Public License as published by               *
 *      the Free Software Foundation, either version 3 of the License,      *
 *      or (at your option) any later version,                              *
 *    - the MIT license (MIT),                                              *
 *    - or both in dual license, as here.                                   *
 *                                                                          *
 *   (see https://agrum.gitlab.io/articles/dual-licenses-lgplv3mit.html)    *
 *                                                                          *
 *   This aGrUM/pyAgrum library is distributed in the hope that it will be  *
 *   useful, but WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,          *
 *   INCLUDING BUT NOT LIMITED TO THE WARRANTIES MERCHANTABILITY or FITNESS *
 *   FOR A PARTICULAR PURPOSE  AND NONINFRINGEMENT. IN NO EVENT SHALL THE   *
 *   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
 *   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,        *
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR  *
 *   OTHER DEALINGS IN THE SOFTWARE.                                        *
 *                                                                          *
 *   See LICENCES for more details.                                         *
 *                                                                          *
 *   SPDX-FileCopyrightText: Copyright 2005-2026                            *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
 *   SPDX-License-Identifier: LGPL-3.0-or-later OR MIT                      *
 *                                                                          *
 *   Contact  : info_at_agrum_dot_org                                       *
 *   homepage : http://agrum.gitlab.io                                      *
 *   gitlab   : https://gitlab.com/agrumery/agrum                           *
 *                                                                          *
 ****************************************************************************/


/*
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (c) 2012 -2024 Pierre-Henri WUILLEMIN(_@LIP6)
   <pierre-henri.wuillemin@lip6.fr>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/**
 * @file
 * @brief A listener that allows BNLearner to be used as a proxy for its inner
 * algorithms
 *
 * @author Pierre-Henri WUILLEMIN(_at_LIP6) & Christophe GONZALES(_at_AMU)
 */
#ifndef GUM_BN_LEARNER_LISTENER_H
#define GUM_BN_LEARNER_LISTENER_H

#include <agrum/agrum.h>

#include <agrum/base/core/approximations/approximationScheme.h>
#include <agrum/base/core/approximations/approximationSchemeListener.h>

namespace gum {
  namespace learning {
    class IBNLearner;

    /** @class BNLearnerListener
     * @brief A class that redirects gum_signal from algorithms to the listeners
     *of
     *BNLearn
     *
     * @ingroup learning_group
     */
    class BNLearnerListener: public ApproximationSchemeListener {
      public:
      BNLearnerListener(IBNLearner* bnl, ApproximationScheme& sch);
      ~BNLearnerListener() override;

      void whenProgress(const void*  src,
                        const Size   pourcent,
                        const double error,
                        const double time) final;
      void whenStop(const void* src, std::string_view message) override;

      private:
      BNLearnerListener(const BNLearnerListener& other);
      BNLearnerListener& operator=(const BNLearnerListener& other);

      IBNLearner* _bnlearner_;
    };
  }   // namespace learning
}   // namespace gum

#endif   // GUM_BN_LEARNER_LISTENER_H
