#include <Adafruit_Sensor.h>
#include <DHT_U.h>
#include <Wire.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <LiquidCrystal_I2C.h>

const String unique_code = "00001";
// Define the pins for sensors
#define DHTPIN 12
#define DHTTYPE DHT22
#define SOIL_SENSOR_PIN 34

// Replace with your network credentials and Firebase details
const char* ssid = "Wokwi-GUEST"; // Setting your AP SSID
const char* password = ""; // Setting your AP PSK
const char* firebaseHost = "";  // Firebase Realtime Database URL
const char* authToken = "";  // Firebase Authentication Token

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  Serial.println("Initializing...");

  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("Connected to WiFi");

  dht.begin();
}

void loop() {
  // Read sensor data
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  int soilMoisture = analogRead(SOIL_SENSOR_PIN);

  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

    // Convert soil moisture to percentage
  int soilMoisturePercent = map(soilMoisture, 0, 4095, 0, 100);

  // Display sensor data on the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");

  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");

  Serial.print("Soil Moisture: ");
  Serial.print(soilMoisturePercent);
  Serial.println(" %");

  // Prepare JSON payload
  String jsonPayload = "{\"temperature\": " + String(temperature) + 
                      ", \"humidity\": " + String(humidity) + 
                      ", \"soilMoisture\": " + String(soilMoisturePercent) + "}";

  // Send data to Firebase
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String url = String("https://") + firebaseHost + "/sensorData/" + unique_code + ".json?auth=" + authToken;
    
    http.begin(url);
    http.addHeader("Content-Type", "application/json");
    
    int httpResponseCode = http.PUT(jsonPayload);

    if (httpResponseCode > 0) {
      String response = http.getString();  // Get and print the response payload
      Serial.println("Data sent successfully");
      Serial.println("Response: " + response);
    } else {
      Serial.print("Error sending data. HTTP Response Code: ");
      Serial.println(httpResponseCode);
      String response = http.getString();
      Serial.println("Response: " + response);
    }

    http.end();
  } else {
    Serial.println("WiFi not connected");
  }

  delay(6000);  // Send data every 60 seconds
}