//--------------------------------------------------------------------------
// Copyright(c) 2024, Yoshiya Usui
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//--------------------------------------------------------------------------
#ifndef DBLDEF_CALIBRATION_FUNCTION
#define DBLDEF_CALIBRATION_FUNCTION

#include <complex>
#include <string>

// Class of calibration function
class CalibrationFunction{

public:

	// Constructer
	CalibrationFunction( const std::string& calibrationFile );

	// Default constructer
	CalibrationFunction();

	// Destructer
	~CalibrationFunction();

	// Read calibration function
	void readCalibrationFunction( const std::string& calibrationFile );

	// Calculate calibration function for a input frequency
	std::complex<double> calculateCalibrationFunction( const double freq ) const;

	// Get constant factor
	double getFactor() const;

private:
	// Constant factor
	double m_factor;

	// Number of frequencies in logarithmic scale
	int m_numFreqs;

	// Arrays of frequencies in logarithmic scale
	double* m_logFreqs;

	// Arrays of amplitudes in logarithmic scale
	double* m_logAmps;

	// Arrays of phase (radian)
	double* m_phases;

	// Copy constructer
	CalibrationFunction(const CalibrationFunction& CalibrationFunction);

	// Assignment operator
	CalibrationFunction& operator=(const CalibrationFunction& CalibrationFunction);

};

#endif