//Marios Ideas
//DS3231 Tutorial
//Using DS3232.h library 
//Formating date and time with dateFormat function (for Arduino board with >2kb SRAM)
//Taken from : https://github.com/jarzebski/Arduino-DS3231
//WiFi.begin("Wokwi-GUEST", "", 6);
#ifndef STASSID
#define STASSID "Wokwi-GUEST"                            // set your SSID
#define STAPSK  ""                          // set your wifi password
#endif
/* Configuration of NTP */
//#define MY_NTP_SERVER "at.pool.ntp.org"
//#define MY_TZ "<-04>4"

#include <Wire.h>
#include "DS3231.h"
#include <Adafruit_GFX.h>
#include <Adafruit_SH110X.h>
#include <Fonts/FreeSans9pt7b.h>
#include <DHT.h>
#include <WiFi.h> 
#include "NTPClient.h"                 // https://github.com/arduino-libraries/NTPClient
#include <WiFiUdp.h>
WiFiUDP wifiUdp;
NTPClient timeClient(wifiUdp, "ca.pool.ntp.org", -4 * 3600, 60000);  // Ajust for your location

#define DHT_SENSOR_PIN  15 // ESP32 pin GPIO21 connected to DHT11 sensor
#define DHT_SENSOR_TYPE DHT22

DHT dht_sensor(DHT_SENSOR_PIN, DHT_SENSOR_TYPE);


DS3231 myRTC;
RTCDateTime dt;
//String txt;

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 128 // OLED display height, in pixels

#define SDA_PIN 21 // Replace with the actual SDA pin
#define SCL_PIN 22 // Replace with the actual SCL pin

#define OLED_RESET     -1// Reset pin # (or -1 if sharing Arduino reset pin)

Adafruit_SH1107 display = Adafruit_SH1107(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET, 1000000, 100000);
#include "temp_bmp.h"
#include "screens.h"

void setup() {
  Wire.begin(SDA_PIN, SCL_PIN);
  Serial.begin(115200);
  //myRTC.begin();
  dht_sensor.begin();
  display.begin(0x3D, false); // Address 0x3D default
  
  if(!dht_sensor.read()) { // Address 0x3D for 128x64
    Serial.println(F("DHT allocation failed"));
    for(;;); // Don't proceed, loop forever
  }
// start network
  WiFi.persistent(false);
  WiFi.mode(WIFI_STA);
  WiFi.begin(STASSID, STAPSK);
  Serial.print("\n");
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print ( "." );
    delay(100);
  }
  Serial.println("\nWiFi connected");
  Serial.println("start NTP");
  timeClient.begin();                                       //
  timeClient.update();                                      //
  timeClient.forceUpdate();                                 //
  Serial.println(timeClient.getFormattedTime ()); // hh mm ss
  //Serial.println(timeClient.getFormattedDate()); // dd mm yyyy


  if(!myRTC.begin()){ // Address 0x3D for 128x64
    Serial.println(F("RTC allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  if(!display.begin(0x3D, false)) { // Address 0x3D for 128x64
    Serial.println(F("SH1107 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

   // Set sketch compiling time only once and comment out
    myRTC.setDateTime(__DATE__, __TIME__);

  display.display();
    delay(2000); // Pause for 2 seconds

    // Clear the buffer
  display.clearDisplay();
  display.display();

}

void loop() {
  // read Humidity in Relative %
  float humi  = dht_sensor.readHumidity();
  // read temperature in Celsius
  float tempC = dht_sensor.readTemperature();
  dt = myRTC.getDateTime();
  //Backgroud screen
  background();
  scr_H_T(humi,tempC);
//Draw the screen
    display.display();
 delay(1000);
}