#ifndef HORUS_HORUS_H
#define HORUS_HORUS_H

#include <limits>

#include <vector>

#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
  TypeName(const TypeName&);               \
  void operator=(const TypeName&)

using namespace std;

class Var;
class Factor;
class VarNode;
class FacNode;

typedef vector<double>    Params;
typedef unsigned          VarId;
typedef vector<VarId>     VarIds;
typedef vector<Var*>      Vars;
typedef vector<VarNode*>  VarNodes;
typedef vector<FacNode*>  FacNodes;
typedef vector<Factor*>   Factors;
typedef vector<string>    States;
typedef vector<unsigned>  Ranges;


enum InfAlgorithms
{
  VE,  // variable elimination
  BP,  // belief propagation
  CBP  // counting belief propagation
};


namespace Globals {

extern bool logDomain;

extern InfAlgorithms infAlgorithm;

};


namespace Constants {

// level of debug information
const unsigned DEBUG = 0;

const int NO_EVIDENCE = -1;

// number of digits to show when printing a parameter
const unsigned PRECISION = 5;

const bool COLLECT_STATS = false;

};


namespace BpOptions
{
  enum Schedule {
    SEQ_FIXED,
    SEQ_RANDOM,
    PARALLEL,
    MAX_RESIDUAL
  };
  extern Schedule  schedule;
  extern double    accuracy;
  extern unsigned  maxIter;
}

#endif // HORUS_HORUS_H