graphChange.h

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 *   Copyright (c) 2005-2025 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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#ifndef GUM_LEARNING_GRAPH_CHANGE_H
#define GUM_LEARNING_GRAPH_CHANGE_H
 
#include <iostream>
#include <string>
 
#include <agrum/agrum.h>
 
#include <agrum/base/graphs/parts/nodeGraphPart.h>
 
namespace gum {
 
  namespace learning {

    enum GraphChangeType { ARC_ADDITION, ARC_DELETION, ARC_REVERSAL, EDGE_ADDITION, EDGE_DELETION };
 
    /* =========================================================================
     */
    /* ===                        GRAPH CHANGE CLASS                         ===
     */
    /* =========================================================================
     */
    class GraphChange {
      public:
      // ##########################################################################
      // ##########################################################################

      GraphChange(GraphChangeType type, NodeId node1, NodeId node2) noexcept;

      GraphChange(const GraphChange& from) noexcept;

      GraphChange(GraphChange&& from) noexcept;

      ~GraphChange() noexcept;

 
      // ##########################################################################
      // ##########################################################################

      GraphChange& operator=(const GraphChange& from) noexcept;

      GraphChange& operator=(GraphChange&& from) noexcept;

      bool operator==(const GraphChange& from) const noexcept;

      bool operator!=(const GraphChange& from) const noexcept;

 
      // ##########################################################################
      // ##########################################################################

      GraphChangeType type() const noexcept;

      NodeId node1() const noexcept;

      NodeId node2() const noexcept;

      virtual std::string toString() const;

 
      private:
      GraphChangeType _type_;

      NodeId _node1_;

      NodeId _node2_;
    };
 
    /* =========================================================================
     */
    /* ===                        ARC ADDITION CLASS                         ===
     */
    /* =========================================================================
     */
    class ArcAddition: public GraphChange {
      public:
      // ##########################################################################
      // ##########################################################################

      ArcAddition(NodeId node1, NodeId node2) noexcept;

      ArcAddition(const ArcAddition& from) noexcept;

      ArcAddition(ArcAddition&& from) noexcept;

      ~ArcAddition() noexcept;

 
      // ##########################################################################
      // ##########################################################################

      ArcAddition& operator=(const ArcAddition& from) noexcept;

      ArcAddition& operator=(ArcAddition&& from) noexcept;

      bool operator==(const ArcAddition& from) const noexcept;

      bool operator!=(const ArcAddition& from) const noexcept;

 
      // ##########################################################################
      // ##########################################################################

      virtual std::string toString() const final;

    };
 
    /* =========================================================================
     */
    /* ===                        ARC DELETION CLASS                         ===
     */
    /* =========================================================================
     */
    class ArcDeletion: public GraphChange {
      public:
      // ##########################################################################
      // ##########################################################################

      ArcDeletion(NodeId node1, NodeId node2) noexcept;

      ArcDeletion(const ArcDeletion& from) noexcept;

      ArcDeletion(ArcDeletion&& from) noexcept;

      ~ArcDeletion() noexcept;

 
      // ##########################################################################
      // ##########################################################################

      ArcDeletion& operator=(const ArcDeletion& from) noexcept;

      ArcDeletion& operator=(ArcDeletion&& from) noexcept;

      bool operator==(const ArcDeletion& from) const noexcept;

      bool operator!=(const ArcDeletion& from) const noexcept;

 
      // ##########################################################################
      // ##########################################################################

      virtual std::string toString() const final;

    };
 
    /* =========================================================================
     */
    /* ===                        ARC REVERSAL CLASS                         ===
     */
    /* =========================================================================
     */
    class ArcReversal: public GraphChange {
      public:
      // ##########################################################################
      // ##########################################################################

      ArcReversal(NodeId node1, NodeId node2) noexcept;

      ArcReversal(const ArcReversal& from) noexcept;

      ArcReversal(ArcReversal&& from) noexcept;

      ~ArcReversal() noexcept;

 
      // ##########################################################################
      // ##########################################################################

      ArcReversal& operator=(const ArcReversal& from) noexcept;

      ArcReversal& operator=(ArcReversal&& from) noexcept;

      bool operator==(const ArcReversal& from) const noexcept;

      bool operator!=(const ArcReversal& from) const noexcept;

 
      // ##########################################################################
      // ##########################################################################

      virtual std::string toString() const final;

    };
 
    /* =========================================================================
     */
    /* ===                        EDGE ADDITION CLASS                        ===
     */
    /* =========================================================================
     */
    class EdgeAddition: public GraphChange {
      public:
      // ##########################################################################
      // ##########################################################################

      EdgeAddition(NodeId node1, NodeId node2) noexcept;

      EdgeAddition(const EdgeAddition& from) noexcept;

      EdgeAddition(EdgeAddition&& from) noexcept;

      ~EdgeAddition() noexcept;

 
      // ##########################################################################
      // ##########################################################################

      EdgeAddition& operator=(const EdgeAddition& from) noexcept;

      EdgeAddition& operator=(EdgeAddition&& from) noexcept;

      bool operator==(const EdgeAddition& from) const noexcept;

      bool operator!=(const EdgeAddition& from) const noexcept;

 
      // ##########################################################################
      // ##########################################################################

      virtual std::string toString() const final;

    };
 
    /* =========================================================================
     */
    /* ===                        EDGE DELETION CLASS                        ===
     */
    /* =========================================================================
     */
    class EdgeDeletion: public GraphChange {
      public:
      // ##########################################################################
      // ##########################################################################

      EdgeDeletion(NodeId node1, NodeId node2) noexcept;

      EdgeDeletion(const EdgeDeletion& from) noexcept;

      EdgeDeletion(EdgeDeletion&& from) noexcept;

      ~EdgeDeletion() noexcept;

 
      // ##########################################################################
      // ##########################################################################

      EdgeDeletion& operator=(const EdgeDeletion& from) noexcept;

      EdgeDeletion& operator=(EdgeDeletion&& from) noexcept;

      bool operator==(const EdgeDeletion& from) const noexcept;

      bool operator!=(const EdgeDeletion& from) const noexcept;

 
      // ##########################################################################
      // ##########################################################################

      virtual std::string toString() const final;

    };

    std::ostream& operator<<(std::ostream& stream, const GraphChange& change);

    std::ostream& operator<<(std::ostream& stream, const ArcAddition& change);

    std::ostream& operator<<(std::ostream& stream, const ArcDeletion& change);

    std::ostream& operator<<(std::ostream& stream, const ArcReversal& change);

    std::ostream& operator<<(std::ostream& stream, const EdgeAddition& change);

    std::ostream& operator<<(std::ostream& stream, const EdgeDeletion& change);
 
  } /* namespace learning */

  template <>
  class HashFunc< learning::GraphChange >: public HashFuncBase< learning::GraphChange > {
    public:
    static Size castToSize(const learning::GraphChange& key);

    virtual Size operator()(const learning::GraphChange& key) const override final;
  };

  template <>
  class HashFunc< learning::ArcAddition >: public HashFuncBase< learning::ArcAddition > {
    public:
    static Size castToSize(const learning::ArcAddition& key);

    virtual Size operator()(const learning::ArcAddition& key) const override final;
  };

  template <>
  class HashFunc< learning::ArcDeletion >: public HashFuncBase< learning::ArcDeletion > {
    public:
    static Size castToSize(const learning::ArcDeletion& key);

    virtual Size operator()(const learning::ArcDeletion& key) const override final;
  };

  template <>
  class HashFunc< learning::ArcReversal >: public HashFuncBase< learning::ArcReversal > {
    public:
    static Size castToSize(const learning::ArcReversal& key);

    virtual Size operator()(const learning::ArcReversal& key) const override final;
  };

  template <>
  class HashFunc< learning::EdgeAddition >: public HashFuncBase< learning::EdgeAddition > {
    static Size castToSize(const learning::EdgeAddition& key);

    virtual Size operator()(const learning::EdgeAddition& key) const override final;
  };

  template <>
  class HashFunc< learning::EdgeDeletion >: public HashFuncBase< learning::EdgeDeletion > {
    public:
    static Size castToSize(const learning::EdgeDeletion& key);

    virtual Size operator()(const learning::EdgeDeletion& key) const override final;
  };
 
} /* namespace gum */
 
#ifndef GUM_NO_INLINE
#  include <agrum/BN/learning/structureUtils/graphChange_inl.h>
#endif   // GU%_NO_INLINE
 
#endif   /* GUM_LEARNING_GRAPH_CHANGE_H */