#ifndef __ALGORITHM_H
#define	__ALGORITHM_H

#include <math.h>
#include <time.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>

#define	CRC16_BASE					0xA001


// 峰值谷值检查结果结构体
typedef struct {
    bool peaks_positive;   // 所有峰值是否大于0
    bool valleys_negative; // 所有谷值是否小于0
    int peak_count;        // 检测到的峰值数量
    int valley_count;      // 检测到的谷值数量
} PeakValleyCheck;

// 趋势分析结果结构体
typedef struct {
	double slope;          // 线性斜率
	int sign_changes;      // 符号变化次数
	char trend_type;   		 // 趋势类型
	char steepness;   		 // 陡峭度
} TrendResult;

PeakValleyCheck check_peaks_valleys(int data[], int length);
TrendResult analyze_trend(int data[], int length);
float calculateAverage(int *arr, int size);
double slope(int32_t *x_data, int32_t *y_data, int n) ;
long long power(int base, unsigned int exponent);
int IntFilter_16t(int16_t *Data, uint8_t Cnt, uint8_t FilterCnt);
int IntFilter_32t(int32_t *Data, uint8_t Cnt, uint8_t FilterCnt);
uint32_t IntFilter_u32t(uint32_t *Data, uint8_t Cnt, uint8_t FilterCnt);
float IntFilter_Float(float *Data, uint8_t Cnt, uint8_t FilterCnt);
uint32_t AverageFilter_u32t(uint32_t *Data, uint8_t Cnt);
int AverageFilter_32t(int32_t *Data, uint8_t Cnt);
void Fitting_Polynomial(double  *AD, double *Actual, uint8_t Cnt);
float get_K(uint8_t count , int32_t *dataCol_X, int32_t *dataRow_Y);
int8_t TrendAnalyse(int32_t *Data, uint8_t Cnt, int32_t VPT);
void Waveform_Up(int32_t *Data, uint8_t dCnt, uint8_t pCnt, int32_t *vlue);
void Waveform_Down(int32_t *Data, uint8_t dCnt, uint8_t pCnt, int32_t *vlue);
bool count_most_greater(int32_t *arr, uint8_t size, int32_t target);
bool count_greater(int32_t *arr, uint8_t size, int32_t target);
bool count_smaller(int32_t *arr, uint8_t size, int32_t target);
uint16_t CRC_Modbus(uint16_t wBase, uint8_t *para, uint16_t length);
uint8_t CRC_Sum(uint8_t *_pbuff, uint16_t _cmdLen);
bool isAllZero(uint8_t *arr, int size);
#endif