#pragma once
// add mix_cc ihdb module to deal with ihyperDB
#include "mix_cc/utility/ihyper_db/ihyper_db.h"
#include <eqpalg/stat/PolyfitStat.h>


// change done

#include <eqpalg/AlgCommonDefine.h>
#include <eqpalg/algs/AlgExp.h>
#include <iomanip>
#include <iostream>
#include <string>

class AlgExpPolyFit : virtual public AlgExp {
public:
  AlgExpPolyFit(const string &name, const Json::Value &rulejson,
                       const string &ruleid, IHDBTools *ihdb);

  virtual ~AlgExpPolyFit();

public:
  virtual int Reload();
  virtual int calculate(string &outjson);

private:
  int calculate_once(string &outjson, HD3Record *hdRec);

  // int GetHDTrend(const string &tag);

private:
  MathExpression *mp_expact;

  int max_sample_count_; // 

  double full_tag_level_;

  int level_count_;

  // using sample data to storage data from ihdb

  std::unique_ptr<PolyfitStat> poly_fit_stat_;
  // delete

  std::string sample_tag_x_str_;
  std::string sample_tag_y_str_;
  std::string sample_tag_level_str_;

  // SampleTrendAnalysis sample_tag_x_trend_;
  // SampleTrendAnalysis sample_tag_y_trend_;

  std::map<string,SampleTrendAnalysis> m_sample_tags; // tag_name -> sample

  mix_cc::IhdCom hd_com;



};