#define BLYNK_TEMPLATE_ID "TMPL3ifK-hehi"
#define BLYNK_TEMPLATE_NAME "Automatic Screen Closer"
#define BLYNK_AUTH_TOKEN "9-myEnZr_nZmO_ArJX2Nd3Nl_YcIhBr6"

#include <WiFi.h>
#include "time.h"

//LDR Characteristics
const float GAMMA = 0.7;
const float RL10 = 50;

//Wifi Details
const char* ssid       = "Wokwi-GUEST";
const char* password   = "";


//Ntp Server Details
const char* ntpServer = "pool.ntp.org";
const long  gmtOffset_sec = 0;
const int   daylightOffset_sec = 19800;


void printLocalTime()
{
  struct tm timeinfo;
  if(!getLocalTime(&timeinfo)){
    Serial.println("Failed to obtain time");
    return;
  }
  Serial.println(&timeinfo, "%A, %B %d %Y %H:%M:%S");
}
void wificonnect()
{
  Serial.printf("Connecting to %s ", ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
  }
  Serial.println(" CONNECTED");
}
/*void brightness()
{
  int analogValue = analogRead(2);
  float voltage = analogValue / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  Serial.println(lux);
}*/
void bright()
{
  
  float ADC;  
  float RLDR;
  float Vout;
  float Lux;
  ADC = analogRead(2); 
  Serial.println(ADC);
  Vout = (ADC * 0.0048828125);
  Serial.println(Vout); 
  RLDR = (10000.0 * (5 - Vout))/Vout;
  Serial.println(RLDR);
  Lux = (500 / RLDR);  
  Serial.println(Lux);
}
void time()
{
  time_t now = time(nullptr);
  struct tm *timeinfo;
  timeinfo = localtime(&now);

  // Format time as string
  char timeStr[20];
  strftime(timeStr, sizeof(timeStr), "%Y-%m-%d %H:%M:%S", timeinfo);

  // Print and/or use the time string
  Serial.print("Current local time: ");
  Serial.println(timeStr);
  Serial.println(timeStr[11]);
  delay(1000);
}
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(2,INPUT);
  pinMode(15, OUTPUT);
  wificonnect();
  configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
  printLocalTime();
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(15,HIGH);
  delay(100);
  int a=analogRead(2);
  Serial.println(a);
  delay(10); 
 // bright();
  time();
  // this speeds up the simulation
}