#define BLYNK_TEMPLATE_ID "TMPL2EgQUBF3"
#define BLYNK_TEMPLATE_NAME "iot"
#define BLYNK_AUTH_TOKEN "z9Vmkn_qFH9uTXpyqwmrQAku_dGQXC_r"

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

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

#define button1_pin 26

#define relay1_pin 23

int relay1_state = 0;

#define button1_vpin V1
#define SLIDER       V2

int sliderVal = 127;

int oldPotVal = 0;
int newPotVal = 0;


BLYNK_CONNECTED(){
  Blynk.syncVirtual(button1_vpin);
  //Blynk.syncVirtual(V3);
}

BLYNK_WRITE(button1_vpin){
  relay1_state = param.asInt();
  digitalWrite(relay1_pin, relay1_state);
  setLed2();
}
BLYNK_WRITE(SLIDER){
  sliderVal = param.asInt();
  setLed2();
}

void setLed2(){
  if(relay1_state){
   ledcWrite(0, sliderVal); 
  }
  else{
    ledcWrite(0, 0); 
  }
}

void setup() {
  Serial.begin(9600);
  pinMode(relay1_pin, OUTPUT);

  pinMode(button1_pin, INPUT_PULLUP);

  ledcSetup(0, 5000, 8);
  ledcAttachPin(22, 0);

  Blynk.begin(auth, ssid, pass);
}

void loop() {
  Blynk.run();
  timer.run();
  listen_push_buttons();
  checkPot();
}

void checkPot(){
  newPotVal = analogRead(34);
  if(oldPotVal != newPotVal){
    oldPotVal = newPotVal;
    Blynk.virtualWrite(V3, newPotVal);
  }
}


void listen_push_buttons(){
  if(digitalRead(button1_pin) == LOW){
    control_relay(1);
    setLed2();
    Blynk.virtualWrite(button1_vpin, relay1_state);
    delay(200);
  }
}


void control_relay(int relay){
   if(relay == 1){
     relay1_state = !relay1_state;
     digitalWrite(relay1_pin, relay1_state);
   }
}