#include <string.h>
#include <time.h>
#include <sys/time.h>
#include "config.h"

struct {
  int id;
  int loc;
} data[10];

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");

  /* float x = 11.2223;

  uint32_t f = *(unsigned int*)&x;

  Serial.println(f, HEX);

  PrintHex32(f);

  Serial.println(sizeof(x));  
  Serial.print(x, 4);
  Serial.println("");

  char l[sizeof(x)];
  sprintf(l, "%4.4f", x);

  Serial.println(sizeof(l));
  Serial.print(l);
  Serial.println("");

  for (int i = 0; i < sizeof(l); i++) {
    PrintHex(l[i]);
    Serial.print(" ");
  };
  Serial.println(""); */
  setenv("TZ", "3", 1);
  tzset();

  struct tm timeinfo;
  struct tm rtcinfo;

  rtcinfo.tm_year = 2023 - 1900;
  rtcinfo.tm_mon = 10 - 1;
  rtcinfo.tm_mday = 18;
  rtcinfo.tm_hour = 14;
  rtcinfo.tm_min = 12;
  rtcinfo.tm_sec = 21;
  rtcinfo.tm_isdst = -1;

  time_t rtcnow = mktime(&rtcinfo);
  
  localtime_r(&rtcnow, &timeinfo);

  struct timeval tset = {.tv_sec = rtcnow};

  settimeofday(&tset, NULL);

  char strftime_buf[64];
	strftime(strftime_buf, sizeof(strftime_buf), "%d-%m-%y %H:%M:%S", &timeinfo);
  Serial.printf("The current date/time in: %s\n", strftime_buf);

  char time_buf[14];
  sprintf(time_buf, "%04d%02d%02d%02d%02d%02d", timeinfo.tm_year + 1900, timeinfo.tm_mon + 1,timeinfo.tm_mday, timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
  Serial.printf("The current date/time in: %s sizeof: %d\n", time_buf, sizeof(time_buf));

  int year, mon, mday, hour, minute, sec;

  sscanf(time_buf,"%04d%02d%02d%02d%02d%02d", &year, &mon, &mday, &hour, &minute, &sec);

  struct tm info;
  info.tm_year = year - 1900;
  info.tm_mon = mon - 1;
  info.tm_mday = mday;
  info.tm_hour = hour;
  info.tm_min = minute;
  info.tm_sec = sec;
  info.tm_isdst = -1;

  time_t infonow = mktime(&info);
  
  struct tm timeeinfo;

  localtime_r(&infonow, &timeeinfo);

  char infotime_buf[64];
	strftime(infotime_buf, sizeof(infotime_buf), "%d-%m-%y %H:%M:%S", &timeeinfo);
  Serial.printf("The current date/time new in: %s\n", infotime_buf);
  
  for (int i = 0; i < 5; i++) {
    delay(65000);
    time_t now;
    struct tm timeinfo;
    char strftime_buf[64];
    time(&now);
    localtime_r(&now, &timeinfo);
    strftime(strftime_buf, sizeof(strftime_buf), "%d-%m-%y %H:%M:%S", &timeinfo);
    Serial.printf("The current date/time in: %s\n", strftime_buf);
  };

  /* struct timeval now = { .tv_sec = t };
  settimeofday(&now, NULL);

	time(&now);
	now = now + (3*60*60);
	localtime_r(&now, &timeinfo);
  strftime(strftime_buf, sizeof(strftime_buf), "%m-%d-%y %H:%M:%S", &timeinfo);
  Serial.printf("The current date/time in New York is: %s\n", strftime_buf); */

 /*  strftime(strftime_buf, sizeof(strftime_buf), "%m-%d-%y %H:%M:%S", &timeinfo);
  Serial.printf("The current date/time in New York is: %s\n", strftime_buf); */


  /* strftime(strftime_buf, sizeof(strftime_buf), "%04d-%02d-%02d %02d:%02d:%02d", timeinfo.tm_year, timeinfo.tm_mon + 1,
		timeinfo.tm_mday, timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec); */

  /* strftime(strftime_buf, sizeof(strftime_buf), "%m-%d-%y %H:%M:%S", &timeinfo); */
  //Serial.printf("The current date/time in New York is: %s\n", strftime_buf);

  /* data[0].id = 1;
  data[0].loc = 2;

  for (int i = 0; i < 10; i++) {
    Serial.print("id: ");
    Serial.print((int)data[i].id);
    Serial.print(", loc: ");
    Serial.print((int)data[i].loc);
    Serial.println("");
  }; */
  
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}

/* void PrintHex(uint8_t str)
{
  Serial.print("0x");
  Serial.print(str < 16 ? "0" : "");
  Serial.print(str, HEX);
}

void PrintHex16(uint16_t data) // prints 16-bit data in hex with leading zeroes
{
  Serial.print("0x"); 
  uint8_t MSB=byte(data>>8);
  uint8_t LSB=byte(data);
  
  if (MSB<0x10) {Serial.print("0");} Serial.print(MSB,HEX); 
  if (LSB<0x10) {Serial.print("0");} Serial.print(LSB,HEX);
}

void PrintHex32(uint32_t str) // prints 16-bit data in hex with leading zeroes
{
  Serial.print("0x"); 
  test[0] = (int)((str & 0xF00000) >> 16);
  test[1] = (int)((str & 0x0F0000) >> 16);
  test[2] = (int)((str & 0x00F000) >> 16);
  test[3] = (int)((str & 0x00F00) >> 16);
  test[4] = (int)((str & 0x000F0));
  test[5] = (int)((str & 0x0000F));

  for (int i = 0; i < sizeof(test); i++) {
    Serial.print((int)test[i]);
  }
  Serial.println("");
} */