#ifndef UTILS_H
#define UTILS_H

#include <time.h>
#include <stdbool.h>

uint64_t timespec_diff_us(const struct timespec *a, const struct timespec *b);
void timespec_add_ms(struct timespec *ts, uint16_t ms);
char *pretty_bytes(uint64_t bytes, int8_t start_suffix, char *buf, size_t bufsz);
char *pretty_num(double num, char *buf, size_t bufsz);

void fast_read_num_u64(const char* dir, const char* file, char* buf, uint64_t* result, uint32_t divider);
void fast_read_num_u16(const char* dir, const char* file, char* buf, uint16_t* result, uint32_t divider);
void fast_read_num_u8(const char* dir, const char* file, char* buf, uint8_t* result, uint32_t divider);
void fast_read_num_i16(const char* dir, const char* file, char* buf, int16_t* result, uint32_t divider);
void fast_read_num_f(const char* dir, const char* file, char* buf, float* result, uint32_t divider);

bool file_exists(const char *path);
size_t read_file(const char* path, char* buffer, size_t n);

int get_hwmon_dir(char *path);

#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define P_BYTES(bytes, start) pretty_bytes((bytes), (start), (char[16]){0}, 16)
#define P_NUM(num) pretty_num((num), (char[8]){0}, 8)

#endif