#ifndef _INDICATOR_CAL_H
#define _INDICATOR_CAL_H
#include "headfile.h"
class MetricsCalculator
{
    public:
    float calculate_heart_rate_ecg(const SensorData& ecg_signal, float sample_rate);
    float calculate_t_wave_amplitude(const std::vector<float>& ecg_signal);
    float calculate_heart_rate_ppg(const std::vector<float>& ppg_signal, float sample_rate);
    float calculate_spo2(const SensorData& ppg_data);
    float calculate_pulse_width(const std::vector<float>& ppg_signal);
    float calculate_amplitude_ratio(const SensorData& ppg_data);
    float calculate_sdnn(const std::vector<float>& rr_intervals);
    float calculate_rmssd(const std::vector<float>& rr_intervals) ;
    std::vector<float> detect_r_peaks(const std::vector<float>& ecg_signal, float sample_rate) ;
    std::vector<float> detect_pulse_peaks(const std::vector<float>& ppg_signal, float sample_rate);
};   
#endif