// Blynk settings
#define BLYNK_TEMPLATE_ID "TMPLYJiSr6vb"
#define BLYNK_TEMPLATE_NAME "DHT22Blynk"
#define BLYNK_AUTH_TOKEN "lOColDT-Qjz4a7S7XE2buhiD-DOVVqD2"

// Libraries
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"

// Pin definitions
#define LED 23
#define BLYNK_PRINT Serial

// DHT sensor pin
const int DHT_PIN = 15;
DHTesp dhtSensor;

// WiFi credentials
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// Blynk timer
BlynkTimer timer;

// Callback when Blynk is connected
BLYNK_CONNECTED() {
    // Sync virtual pin 2 on connection
    Blynk.syncVirtual(2);
}

// State variable for the toggle button
bool toggleState_1 = LOW;

// Blynk callback for virtual pin V5
BLYNK_WRITE(V5) {
    // Read the state from the app
    toggleState_1 = param.asInt();
    // Control the LED based on the state
    digitalWrite(LED, toggleState_1 ? HIGH : LOW);
}

// Function to send sensor data to Blynk
void sendSensor() {
    // Read temperature and humidity from DHT sensor
    TempAndHumidity data = dhtSensor.getTempAndHumidity();
    Serial.println("Temp: " + String(data.temperature, 2) + "°C");
    Serial.println("Humidity: " + String(data.humidity, 1) + "%");
    Serial.println("-----------------------------------");

    // Send data to Blynk app
    Blynk.virtualWrite(V0, data.temperature);
    Blynk.virtualWrite(V1, data.humidity);

    delay(100);
}

void setup() {
    // Initialize serial communication
    Serial.begin(9600);

    // Connect to WiFi and Blynk
    Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

    // Set LED pin as output
    pinMode(LED, OUTPUT);

    // Initialize DHT sensor
    dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

    // Set up timer to send sensor data every 2 seconds
    timer.setInterval(2000L, sendSensor);
}

void loop() {
    // Run Blynk tasks
    Blynk.run();
    // Run timer tasks
    timer.run();
}