#include <WiFi.h>
#include <Wire.h>
#include <LiquidCrystal.h>
#include "RTClib.h"

String ds = "";
int cou = 0;
int tmpC =0;
short RTn = 0;
short DSs = 0;
short DSn = 0;
short DSh = 0;
short DSd = 0;
short DSm = 0;
short DSy = 0;
short cT = 0;
short tNow = 0;

char wkD[7][12] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char monD[12][12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

LiquidCrystal LCD(13, 12, 14, 27, 26, 25);
RTC_DS3231 rtc;

#define NTP_SERVER     "pool.ntp.org"
#define UTC_OFFSET     19600
#define UTC_OFFSET_DST 0

void printLocalTime() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    LCD.setCursor(0, 1);
    LCD.println("Connection Err");
    return;
  }

  LCD.setCursor(8, 0);
  LCD.println(&timeinfo, "%H:%M:%S");

  LCD.setCursor(0, 1);
  LCD.println(&timeinfo, "%d/%m/%Y mafaa");
}  //print LT

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello ESP32!");
  // set up the LCD's number of columns and rows:
  LCD.begin(8, 2);
  LCD.clear();
  // Print a message to the LCD.
  LCD.print("hello, ESP32!");

  if (! rtc.begin()) {
  Serial.println("Couldn't find RTC");
  Serial.flush();
  LCD.setCursor(0, 1);
  LCD.print("No RTC");
  //abort();
  }

  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    cou+1;
    if(cou> 10) {break;}
    LCD.setCursor(0, 1);
    LCD.print("No internet");
    delay(2000);
    cou = 0;
  }
  configTime(UTC_OFFSET, UTC_OFFSET_DST, NTP_SERVER);
  delay(3000);
  LCD.clear();
  getRTC();
  tNow = 1;
}  //setup

void getRTC() {  
    if (! rtc.begin()) {
      Serial.println("No RTC");
    }else {
    DateTime now = rtc.now();
    //tNow = int(now.hour());
    DSh = now.hour();
    DSn = now.minute();
    DSs = now.second();
    RTn = DSn;
    DSd = now.day();
    DSm = now.month();
    DSy = now.year();
    LCDtim();
    //if (hidx < 255) {LCDdat();}
    Serial.println("RTC called");
    Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(DSd);
    Serial.print(" (");
    //Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
    //Serial.print(") ");
    //Serial.print(now.hour(), DEC);
    Serial.print(DSh, DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println(")");

    Serial.print("Temp ");
    Serial.print(rtc.getTemperature());
    Serial.println(" C");
    Serial.println();
    
    }
    LCDtim();
    LCDdat();
}  // getRTC

void LCDtim() {
  //if((int((now.unixtime()) - wkD) > 5)) {wkD = int(now.unixtime());}
  LCD.setCursor(0, 1);    
  if (DSh < 10) {LCD.print("0");}
  LCD.print(DSh);
  LCD.print(':');
  if (DSn < 10) {LCD.print("0");}
  LCD.print(DSn);
  LCD.print(':');
  if (DSs < 10) {LCD.print("0");}
  LCD.print(DSs);
  tmpC = rtc.getTemperature();
  LCD.print(" ");
  //LCD.print(tmpC);
  LCD.print(cou);
  //LCD.print("tNow");
  //LCD.print(tNow);
  LCD.setCursor(0, 10);
  //LCD.print(wkD[(DSd + 1)]);
  //Serial.println(wkD[(DSd + 1)]);
  //Serial.println(wkD[(DSd + 1)]);
  LCD.println(&timeinfo, "Www");
} //LCDtim

void LCDdat() {
  LCD.setCursor(0, 0);
  //LCD.print("Date: ");
  if (DSd < 10) {LCD.print("0");}
  LCD.print(DSd);
  LCD.print("/");
  if (DSm < 10) {LCD.print("0");}
  LCD.print(DSm);
  LCD.print("/");
  int year = DSy % 100;
  LCD.print(year);
  //LCD.print(now.year());
  //LCD.print(" ");
  //LCD.print(wkD[now.dayOfTheWeek()]);
  //LCD.print(" ");
  //LCD.print(monD[(now.month() -1)]);
  Serial.println("LCDdat called");
} //LCDdat

void loop() {
  /* set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  LCD.setCursor(0, 0);
  if (rtc.begin()) {DateTime now = rtc.now();
  //LCD.print("Date: ");
  //LCD.setCursor(6, 0);
  if (now.day()< 10) {LCD.print("0");}
  LCD.print(now.day());
  LCD.print("/");
  if (now.month()< 10) {LCD.print("0");}
  LCD.print(now.month());
  LCD.print("/");
  int year = now.year() % 100;
  LCD.print(year);
  //LCD.print(now.year());
  LCD.print(" ");
  LCD.print(wkD[now.dayOfTheWeek()]);
  LCD.print(" ");
  LCD.print(monD[(now.month() -1)]);
  
  LCD.setCursor(0, 1);
  //LCD.print("Time: ");
  if (now.hour()< 10) {LCD.print("0");}
  LCD.print(now.hour());
  LCD.print(':');
  if (now.minute()< 10) {LCD.print("0");}
  LCD.print(now.minute());
  LCD.print(':');
  if (now.second()< 10) {LCD.print("0");}
  LCD.print(now.second());
  tmpC = rtc.getTemperature();
  LCD.print(" Tmp:");
  LCD.print(tmpC);

  Serial.print("Current time: ");
  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(" (");
  //Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
  Serial.print(") ");
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second(), DEC);
  Serial.println();
  Serial.printf("Tmp: %d ", tmpC);
  Dh = now.hour();
  Dm = now.minute();  
  Ds = now.second();
  */
  /* cou 5 to 10 mint
  RTC 10 mint
  WIFI 1 hr
  */
  if(cou > 300) {
    //chktNow();
    //if (booON) {FLED1();}
    LCDdat();
    cou = 0;
  }
  DSs+=1;
  if(DSs ==60) {
    DSs = 0;
    DSn+=1;
    if(DSn ==60) {
      DSn = 0;
      DSh+=1;
      //if((DSh - Dph) == 100) {}
      if(DSh ==24) {
        DSh = 0;
        LCDdat();
      }
      getRTC();   // update every hour
    }
    cT = ((DSh * 100)+DSn);
    if (cT > tNow) {   
      Serial.println("cT > tNow");
      /*initWiFi();
      getRTC();
      // Set RTC time
      if (DSn !=RTn) {
        Serial.println("RTC time adjust");
        rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
      } */
      tNow = cT + 200;
    }
  }
  //Serial.print(LCD.status());
  Serial.printf("Dh %d", DSh);
  Serial.printf(" Dm %d", DSn);
  Serial.printf(" Ds %d", DSs);
  Serial.printf("  cT %d", cT);
  Serial.printf("  cou %d\n", cou);
  LCDtim();
  delay(1000);
  cou+=1;
}