/*
 * Scores.h
 *
 *  Created on: 23 Oct 2015
 *      Author: hieu
 */

#pragma once
#include <iostream>
#include <string>
#include "TypeDef.h"
#include "MemPool.h"

namespace Moses2
{

class FeatureFunction;
class FeatureFunctions;
class System;

class Scores
{
public:
  Scores(const System &system, MemPool &pool, size_t numScores);
  Scores(const System &system, MemPool &pool, size_t numScores,
         const Scores &origScores);

  virtual ~Scores();

  SCORE GetTotalScore() const {
    return m_total;
  }

  const SCORE *GetScores(const FeatureFunction &featureFunction) const;

  void Reset(const System &system);

  void CreateFromString(const std::string &str,
                        const FeatureFunction &featureFunction, const System &system,
                        bool transformScores);

  void PlusEquals(const System &system, const FeatureFunction &featureFunction,
                  const SCORE &score);

  void PlusEquals(const System &system, const FeatureFunction &featureFunction,
                  const SCORE &score, size_t offset);

  void PlusEquals(const System &system, const FeatureFunction &featureFunction,
                  const std::vector<SCORE> &scores);

  void PlusEquals(const System &system, const FeatureFunction &featureFunction,
                  SCORE scores[]);

  void PlusEquals(const System &system, const Scores &scores);

  void MinusEquals(const System &system, const Scores &scores);

  void Assign(const System &system, const FeatureFunction &featureFunction,
              const SCORE &score);

  void Assign(const System &system, const FeatureFunction &featureFunction,
              const std::vector<SCORE> &scores);

  std::string Debug(const System &system) const;

  void OutputBreakdown(std::ostream &out, const System &system) const;

  // static functions to work out estimated scores
  static SCORE CalcWeightedScore(const System &system,
                                 const FeatureFunction &featureFunction, SCORE scores[]);

  static SCORE CalcWeightedScore(const System &system,
                                 const FeatureFunction &featureFunction, SCORE score);

protected:
  SCORE *m_scores;
  SCORE m_total;
};

}