#define BLYNK_TEMPLATE_ID "TMPL61FIsb3eE"
#define BLYNK_TEMPLATE_NAME "Temp Sensor"
#define BLYNK_AUTH_TOKEN "5gm_wxiCbRR5hrHY4CxJ1tI8g2V69dP6"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"
#include "ThingSpeak.h"

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2321770 ; 
const char* myApiKey = "8Q8DR7MMSBD329O1";
const char* server = "api.thingspeak.com";
const int DHT_PIN = 15;
const int LED_PIN = 13;

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

DHTesp dhtSensor;
WiFiClient client;
BlynkTimer timer;

bool isLedOn = false; 
unsigned long ledStartTime = 0;
bool LEDSwitchState = false;

void turnOnLED() {
  digitalWrite(LED_PIN, HIGH);
  isLedOn = true;
  ledStartTime = millis();
}

void turnOffLED() {
  digitalWrite(LED_PIN, LOW);
  isLedOn = false;
  ledStartTime = 0;
}


void setup() {
  Serial.begin(115200);
  
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(LED_PIN, OUTPUT);
  
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  
  ThingSpeak.begin(client);
  Blynk.begin(auth, ssid, pass);

  turnOnLED();
  LEDSwitchState = false;
}

void loop() {
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();

  if (isLedOn) {
    unsigned long currentTime = millis();
    unsigned long ledDuration = currentTime - ledStartTime;

    data.temperature += (ledDuration / 10000.0);

  }

  if (data.temperature >= 60.0) {
    if (isLedOn) {
      turnOffLED();
      LEDSwitchState = false;
      Blynk.virtualWrite(V0, 0); 
    }
  }

  ThingSpeak.setField(1,data.temperature);
  
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);
  
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  
  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }
  Serial.println("---");

  delay(20000);

  Blynk.run();
  timer.run();
}