#ifndef _INDICATOR_CAL_H
#define _INDICATOR_CAL_H
#include "headfile.h"
class MetricsCalculator
{
    public:
    // ECG相关指标
    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_qrs_width(const std::vector<float>& ecg_signal, float sample_rate);
    float calculate_st_offset(const std::vector<float>& ecg_signal, float sample_rate);
    
    // PPG相关指标
    float calculate_heart_rate_ppg(const std::vector<float>& ppg_signal, float sample_rate);
    float calculate_spo2(const SensorData& ppg_data);
    float calculate_perfusion_index(const SensorData& ppg_data);
    float calculate_pulse_width(const std::vector<float>& ppg_signal);
    float calculate_amplitude_ratio(const SensorData& ppg_data);
    
    // HRV相关指标
    float calculate_sdnn(const std::vector<float>& rr_intervals);
    float calculate_rmssd(const std::vector<float>& rr_intervals);
    float calculate_pnn50(const std::vector<float>& rr_intervals);
    float calculate_triangular_index(const std::vector<float>& rr_intervals);
    
    // 信号处理
    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);
    float calculate_signal_quality(const std::vector<float>& signal);
    
    // 综合指标计算
    std::map<std::string, float> calculate_all_ecg_metrics(const SensorData& ecg_data, float sample_rate);
    std::map<std::string, float> calculate_all_ppg_metrics(const SensorData& ppg_data, float sample_rate);
    std::map<std::string, float> calculate_all_hrv_metrics(const std::vector<float>& rr_intervals);
};   
#endif