#ifndef SINGLE_SPECTR_H
#define SINGLE_SPECTR_H

#include <QMainWindow>
#include <QChart>
#include <QChartView>
#include <QLabel>
#include <QPushButton>
#include <QCheckBox>
#include <QLineEdit>
#include <QGridLayout>
#include <QGroupBox>
#include <QVector>
#include <QRandomGenerator>

#include "macro.h"
#include "ClassDigitizer.h"
#include "CustomThreads.h"
#include "CustomWidgets.h"
#include "Histogram1D.h"
#include "Histogram2D.h"

class HistWorker; //Forward decalration

//^====================================================
//^====================================================
class SingleSpectra : public QMainWindow{
  Q_OBJECT

public:
  SingleSpectra(Digitizer ** digi, unsigned int nDigi, QString rawDataPath, QMainWindow * parent = nullptr);
  ~SingleSpectra();

  void ClearInternalDataCount();
  // void SetFillHistograms(bool onOff) { fillHistograms = onOff;}
  // bool IsFillHistograms() const {return fillHistograms;}

  void LoadSetting();
  void SaveSetting();

  void SetMaxFillTime(unsigned short milliSec) { maxFillTimeinMilliSec = milliSec;}
  unsigned short GetMaxFillTime() const {return maxFillTimeinMilliSec;};

  QVector<int> generateNonRepeatedCombination(int size);

  void ReplotHistograms();

signals:
  // void startWorkerTimer(int interval);
  // void stopWorkerTimer();

public slots:
  void FillHistograms();
  void ChangeHistView();
  void startTimer(){ 
    // printf("timer start\n");
    timer->start(maxFillTimeinMilliSec); 
    // emit startWorkerTimer(maxFillTimeinMilliSec);
  } 
  void stopTimer(){ 
    // printf("timer stop\n");
    timer->stop();
    // emit stopWorkerTimer();
    isFillingHistograms = false; // this will also break the FillHistogram do-loop
    ClearInternalDataCount();
  }

private:

  Digitizer ** digi;
  unsigned short nDigi;

  long lastFilledIndex[MaxNDigitizer][MaxNChannels]; // index * dataSize + index
  bool histVisibility[MaxNDigitizer][MaxNChannels];
  bool hist2DVisibility[MaxNDigitizer];

  bool isFillingHistograms;
  Histogram1D * hist[MaxNDigitizer][MaxNChannels];
  Histogram2D * hist2D[MaxNDigitizer];

  QCheckBox * chkIsFillHistogram;

  RComboBox * cbDivision;

  RComboBox * cbDigi;
  RComboBox * cbCh;

  QGroupBox * histBox;
  QGridLayout * histLayout;
  int oldBd;
  int oldChComboBoxindex[MaxNDigitizer]; // the ID of hist for display

  QString settingPath;

  unsigned short maxFillTimeinMilliSec;

  bool isSignalSlotActive;

  QThread * workerThread;
  HistWorker * histWorker;
  QTimer * timer;

};

// //^#======================================================== HistWorker
class HistWorker : public QObject{
  Q_OBJECT
public:
  HistWorker(SingleSpectra * parent): SS(parent){}

public slots:
  void FillHistograms(){
    SS->FillHistograms();
    emit workDone();
  }

signals:
  void workDone();

private:
  SingleSpectra * SS;
};

#endif