// EDGE.H
#ifndef EDGE_H
  #define EDGE_H
  #include "node.h"
  #include "vtr.h"
  #include "cvtr.h"
  #include <vector>
  #include "../dgtd-performance.hpp"

  class edge {
    friend class face;
    friend class tetra;
    friend class FemGrp;

    private:
      int globalCnt; //position in the set of edges
      int cnt;
      int bType;
      bool IsPmcOnceSet; //TRUE if edge PMC // added DG 
      bool IsPecOnceSet; //TRUE if edge PMC //added DG
      bool PecPmc; //TRUE if edge PEC AND PMC
      node *nd[2]; //nodes of the edge
      cVtr e;
      cVtr h;

    public:
      // constructor
      edge();
      // operators
      int operator>(const edge &) const;
      int operator<(const edge &) const;
      int operator == (const edge &) const;
      edge &operator = (const edge &);

      // set functions
      void setGlobalCnt(int n){globalCnt = n;}
      void setEdge(node *, node *);
      void setbType(int);
      void ReplacebType(int);      
      void setcnt(int);

      // get functions
      int getGlobalCnt() const {return globalCnt;}
      int getid(int );
      int getbType() const {return bType;}
      int getcnt();
      int getCnt() const {return cnt;}
      fp_t length();
      bool IsPecPmc(){return IsPmcOnceSet && IsPecOnceSet;} // added for DG
      node *getNode(int);
      // print 
      void print();

      // procedures related to error fields e and h
      void AddToE(cVtr);
      void AddToH(cVtr);
      cVtr GetE();
      cVtr GetH();
      void resetEH();
      vtr Center();
  };

#endif