#define BLYNK_TEMPLATE_ID "TMPL2vMr0E_Mt"
#define BLYNK_TEMPLATE_NAME "IoT"
#define BLYNK_AUTH_TOKEN "qcUmVR4jpujnxouu3tEMtwB8PzYgMzbf"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>

#define ONE_WIRE_BUS 4       // Pin para el sensor de temperatura
#define HEATER_PIN 13         // Pin para el LED
#define PWM_CHANNEL 0
#define PWM_FREQUENCY 5000
#define PWM_RESOLUTION 8

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
LiquidCrystal_I2C lcd(0x27, 16, 2);  // Cambié a LCD de 20x4 para Wokwi

float setHeatLevel = 0.0;
float currentTemperature = 0.0;
bool systemOn = false;

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

BlynkTimer timer;

BLYNK_WRITE(V0) {
  setHeatLevel = param.asFloat();
}

void setup() {
  Serial.begin(115200);
  pinMode(HEATER_PIN, OUTPUT);
  lcd.begin(20, 4);
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Iniciando...");
   Serial.println("Iniciando...");

  sensors.begin();
  Blynk.begin(auth, ssid, pass);
  /// timer.setInterval(1000L, updateTemperature);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Conectado a Blynk");
  Serial.println("Conectado a Blynk");
}

BLYNK_WRITE(V3) {
  int buttonState = param.asInt();
  Serial.println(buttonState);
  if (buttonState == 1) {
    digitalWrite(HEATER_PIN, HIGH);
  } else {
    digitalWrite(HEATER_PIN, LOW);
  }
}


void updateTemperature() {
  sensors.requestTemperatures();
  currentTemperature = sensors.getTempCByIndex(0);

  if (systemOn) {
    int heatIntensity = map(setHeatLevel, 0, 100, 0, 255);
    ledcWrite(PWM_CHANNEL, heatIntensity);
    Blynk.virtualWrite(V1, 1);
  } else {
    ledcWrite(PWM_CHANNEL, 0);
    Blynk.virtualWrite(V1, 0);
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp Act: ");
  lcd.print(currentTemperature);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("Calor: ");
  lcd.print(setHeatLevel);
  lcd.print(" %");

  Blynk.virtualWrite(V0, currentTemperature);
}

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