#define BLYNK_TEMPLATE_ID "TMPL6mxC5NXaI"
#define BLYNK_TEMPLATE_NAME "pH Turbidity and Temperature test"
#define BLYNK_AUTH_TOKEN "ilXvtY4_XtX5Up-7nGrvSsqHpOHhv596" // Replace with your Blynk Auth Token

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

// WiFi credentials
const char* ssid = "Wokwi-GUEST";        // Replace with your WiFi SSID
const char* password = ""; // Replace with your WiFi Password

// Google Sheets Webhook URL
const char* googleSheetsURL = "https://script.google.com/macros/s/AKfycbyQu475Wg16k8hg2MUXqfQktx8fuOkMvI6u35jDRg6rtabYk2g8kpnt341dyu73kYQFbw/exec";

// Sensor Pins
const int tempSensorPin = 34;  // Example GPIO pin for temperature
const int humidSensorPin = 35; // Example GPIO pin for humidity
const int lightSensorPin = 32; // Example GPIO pin for light

// Timer for sending data
BlynkTimer timer;

// Function to send data to Google Sheets
void sendToGoogleSheets(float temp, float humid, float light) {
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String url = String(googleSheetsURL) +
                 "?temperature=" + String(temp) +
                 "&humidity=" + String(humid) +
                 "&light=" + String(light);

    http.begin(url);
    int httpResponseCode = http.GET();
    if (httpResponseCode > 0) {
      Serial.println("Data sent to Google Sheets successfully.");
    } else {
      Serial.println("Error sending data to Google Sheets.");
    }
    http.end();
  } else {
    Serial.println("WiFi not connected.");
  }
}

// Function to read sensors and send data to Blynk & Google Sheets
void sendData() {
  float temperature = analogRead(tempSensorPin) * (3.3 / 4095.0) * 100.0; // Simulated temperature
  float humidity = analogRead(humidSensorPin) * (3.3 / 4095.0) * 100.0;   // Simulated humidity
  float light = analogRead(lightSensorPin) * (3.3 / 4095.0) * 100.0;      // Simulated light intensity

  // Send data to Blynk
  Blynk.virtualWrite(V0, temperature);
  Blynk.virtualWrite(V1, humidity);
  Blynk.virtualWrite(V2, light);

  // Send data to Google Sheets
  sendToGoogleSheets(temperature, humidity, light);

  Serial.println("Data sent successfully:");
  Serial.printf("Temperature: %.2f, Humidity: %.2f, Light: %.2f\n", temperature, humidity, light);
}

void setup() {
  Serial.begin(115200);

  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected!");

  // Initialize Blynk
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, password);

  // Set up a timer to send data every 10 seconds
  timer.setInterval(10000L, sendData);
}

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