BayesNetFragment.h

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#ifndef GUM_BAYES_NET_FRAGMENT_H
#define GUM_BAYES_NET_FRAGMENT_H

#include <agrum/agrum.h>

#include <agrum/BN/IBayesNet.h>
#include <agrum/tools/graphs/parts/listeners/diGraphListener.h>

#include <agrum/BN/BayesNet.h>

namespace gum {
  template < typename GUM_SCALAR >
  class BayesNetFragment:
      public IBayesNet< GUM_SCALAR >,
      public gum::DiGraphListener {
    private:
    const IBayesNet< GUM_SCALAR >& __bn;

    NodeProperty< const Potential< GUM_SCALAR >* > __localCPTs;

    public:
    BayesNetFragment() = delete;
    BayesNetFragment(const BayesNetFragment< GUM_SCALAR >& fragment) = delete;
    BayesNetFragment(BayesNetFragment< GUM_SCALAR >&& fragment) = delete;

    explicit BayesNetFragment(const IBayesNet< GUM_SCALAR >& bn);

    virtual ~BayesNetFragment();



    virtual void whenNodeAdded(const void* src, NodeId id) final;


    virtual void whenNodeDeleted(const void* src, NodeId id) final;


    virtual void whenArcAdded(const void* src, NodeId from, NodeId to) final;


    virtual void whenArcDeleted(const void* src, NodeId from, NodeId to) final;


    virtual const Potential< GUM_SCALAR >& cpt(NodeId varId) const final;
    virtual const Potential< GUM_SCALAR >& cpt(const std::string& name) const {
      return cpt(idFromName(name));
    };

    virtual const VariableNodeMap& variableNodeMap() const final;

    virtual const DiscreteVariable& variable(NodeId id) const final;
    virtual const DiscreteVariable& variable(const std::string& name) const final {
      return variable(idFromName(name));
    };

    virtual NodeId nodeId(const DiscreteVariable& var) const final;

    virtual NodeId idFromName(const std::string& name) const final;

    virtual const DiscreteVariable&
       variableFromName(const std::string& name) const final;

    virtual std::string toDot() const final;



    bool isInstalledNode(NodeId id) const;
    bool isInstalledNode(const std::string& name) const {
      return isInstalledNode(idFromName(name));
    };

    void installNode(NodeId id);
    void installNode(const std::string& name) {
      installNode(__bn.idFromName(name));
    }

    void installAscendants(NodeId id);
    void installAscendants(const std::string& name) {
      installAscendants(__bn.idFromName(name));
    }

    void uninstallNode(NodeId id);
    void uninstallNode(const std::string& name) {
      uninstallNode(idFromName(name));
    }

    void installMarginal(NodeId id, const Potential< GUM_SCALAR >& pot);
    void installMarginal(const std::string&             name,
                         const Potential< GUM_SCALAR >& pot) {
      installMarginal(__bn.idFromName(name), pot);
    }

    void installCPT(NodeId id, const Potential< GUM_SCALAR >& pot);
    void installCPT(const std::string& name, const Potential< GUM_SCALAR >& pot) {
      installCPT(__bn.idFromName(name), pot);
    };

    void uninstallCPT(NodeId id);
    void uninstallCPT(const std::string& name) { uninstallCPT(idFromName(name)); }

    bool checkConsistency(NodeId id) const;
    bool checkConsistency(const std::string& name) const {
      return checkConsistency(idFromName(name));
    }

    bool checkConsistency() const;



    gum::BayesNet< GUM_SCALAR > toBN() const;

    using IBayesNet< GUM_SCALAR >::nodes;
    using IBayesNet< GUM_SCALAR >::dag;

    protected:
    // remove an arc
    void _uninstallArc(NodeId from, NodeId to);

    // add an arc
    void _installArc(NodeId from, NodeId to);

    // install a CPT BY COPY, create or delete arcs. Checks are made in public
    // methods In particular, it is assumed that all the variables in the pot are
    // in the fragment
    void _installCPT(NodeId id, const Potential< GUM_SCALAR >& pot);

    void _uninstallCPT(NodeId id);
  };


#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
  extern template class BayesNetFragment< double >;
#endif

}   // namespace gum

#include <agrum/BN/BayesNetFragment_tpl.h>

#endif   // GUM_BAYES_NET_FRAGMENT_H