#include "DHTesp.h"

const int DHT_PIN = 21;
const int switch_relay = 26;
const int solinoid_relay = 2;

DHTesp dhtSensor;
int temp;
int humd;
int switch_value;



//blynk
/*************************************************************

  This sketch shows how to write values to Virtual Pins

  NOTE:
  BlynkTimer provides SimpleTimer functionality:

  App dashboard setup:
    Value Display widget attached to Virtual Pin V5
 *************************************************************/
#define BLYNK_TEMPLATE_ID "TMPL6grvmp5FP"
#define BLYNK_TEMPLATE_NAME "Smart Door Lock with Authentication"
#define BLYNK_AUTH_TOKEN "RTXgTadrl_1fcXrZzNbifOPNeTZSspLS"
#define BLYNK_PRINT Serial


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

WidgetLED led1(V2);

BlynkTimer timer;


// This function sends Arduino's up time every second to Virtual Pin (5).
// In the app, Widget's reading frequency should be set to PUSH. This means
// that you define how often to send data to Blynk App.
void myTimerEvent()
{
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  temp=data.temperature;
  humd=data.humidity;
  Blynk.virtualWrite(V0, temp);
  Blynk.virtualWrite(V1, humd);
Blynk.virtualWrite(V4, temp);
  Blynk.virtualWrite(V5, humd);
  

  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  
}


BLYNK_WRITE(V3) // this command is listening when something is written to V1
{
 switch_value = param.asInt(); // assigning incoming value from pin V1 to a variable
  
  if (switch_value == 1)
  {
   Blynk.virtualWrite(V6, "System started                     ");
   Blynk.virtualWrite(V6, "2 step verificaton triggered       ");
   Blynk.virtualWrite(V6, "Enter Password");

   Serial.println("System started");
   Serial.println("2 step verificaton triggered");
   
   
   digitalWrite(switch_relay, HIGH);
  
  }
   else if (switch_value == 0) 
   {
   digitalWrite(switch_relay, LOW);
   digitalWrite(solinoid_relay, HIGH);
  
  led1.off(); 
  }
  
  Serial.print("Switch relay value is: "); // printing value to serial monitor
  Serial.println(switch_value);
}
  
 


//to get the value from the terminal text input
BLYNK_WRITE(V6) {
 
 
   String input = param.asStr();

   Serial.println(input);

   if(input.toInt()==1234 && switch_value==1)
   {
   

    Blynk.virtualWrite(V6, "door unlocked");
      Serial.println("Door is Unlocked");
      digitalWrite(solinoid_relay, LOW);
      
   led1.on();

 
   }
   else
    {

      Blynk.virtualWrite(V6, "wrong code"); 
      Serial.println("wrong code");
      digitalWrite(solinoid_relay, HIGH);
      

    }
}





void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
    pinMode(switch_relay, OUTPUT);
    pinMode(solinoid_relay, OUTPUT);
    digitalWrite(solinoid_relay, HIGH);

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  timer.setInterval(1000L, myTimerEvent);
}

void loop() {
  
  Blynk.run();
  timer.run(); // Initiates BlynkTimer
  
}