// -*- c++ -*-

#ifndef LEMON_MAPPABLE_GRAPH_EXTENDER_H
#define LEMON_MAPPABLE_GRAPH_EXTENDER_H

namespace lemon {

  template <typename Base, template <class,class,class,class,class,class> class DynMap> 
  class MappableGraphExtender : public Base {
  public:

    typedef MappableGraphExtender Graph;
    typedef Base Parent;

    typedef typename Parent::Node Node;
    typedef typename Parent::NodeIt NodeIt;
    typedef typename Parent::NodeObserverRegistry NodeObserverRegistry;

    typedef typename Parent::Edge Edge;
    typedef typename Parent::EdgeIt EdgeIt;
    typedef typename Parent::EdgeObserverRegistry EdgeObserverRegistry;

  public:

    class NodeIdMap {
    private:
      const Graph* graph;

    public:
      NodeIdMap(const Graph& g) : graph(&g) {}

      int operator[](const Node& node) { return graph->id(node); }

      int maxId() const {return graph->maxNodeId(); }

    };

    //    template <typename Value>
    //    friend class DynMap<NodeObserverRegistry, Graph, Node, NodeIt,
    //		NodeIdMap, Value>;

    class EdgeIdMap {
    private:
      const Graph* graph;

    public:
      EdgeIdMap(const Graph& g) : graph(&g) {}

      int operator[](const Edge& edge) const { return graph->id(edge); }

      int maxId() const {return graph->maxEdgeId(); }

    };

    //    template <typename Value>
    //    friend class DynMap<EdgeObserverRegistry, Graph, Edge, EdgeIt,
    //		EdgeIdMap, Value>;

  public:
    
    template <typename Value>
    class NodeMap 
      : public DynMap<NodeObserverRegistry, Graph, Node, NodeIt,
		      NodeIdMap, Value> {
    public:
      typedef DynMap<NodeObserverRegistry, Graph, Node, NodeIt,
		     NodeIdMap, Value> Parent;

      NodeMap(const Graph& g) 
	: Parent(g, g.Graph::Parent::getNodeObserverRegistry()) {}
      NodeMap(const Graph& g, const Value& v) 
	: Parent(g, g.Graph::Parent::getNodeObserverRegistry(), v) {}

    };

    template <typename Value>
    class EdgeMap 
      : public DynMap<EdgeObserverRegistry, Graph, Edge, EdgeIt,
		      EdgeIdMap, Value> {
    public:
      typedef DynMap<EdgeObserverRegistry, Graph, Edge, EdgeIt,
		     EdgeIdMap, Value> Parent;

      EdgeMap(const Graph& g) 
	: Parent(g, g.Graph::Parent::getEdgeObserverRegistry()) {}
      EdgeMap(const Graph& g, const Value& v) 
	: Parent(g, g.Graph::Parent::getEdgeObserverRegistry(), v) {}

    };

    
  };

}

#endif