#include "sn.h"

#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>

/*******************************************************************************
 *                                   EXTERN                                    *
 *******************************************************************************/

static sn_t m_sn;

sn_t* xs_device_info_get() {  //
  sn_t* info = (sn_t*)DEVICE_INFO_START_ADD;
  m_sn       = *info;

  if (m_sn.year < 0) {
    m_sn.year = 0;
  }

  if (m_sn.weak < 0) {
    m_sn.weak = 0;
  }

  if (m_sn.index < 0) {
    m_sn.index = 0;
  }

  return &m_sn;
}

const char* sn_get_str() {
  sn_t*       info = xs_device_info_get();
  static char sn_str[32];


  sprintf(sn_str, "%s%02ld%02ld%04ld", SN_HEADER, info->year, info->weak, info->index);
  return sn_str;
}