#include <WiFi.h>
#include <HTTPClient.h>
#include <WiFiClient.h>
#define IR_SENSOR_PIN D1 

const char* ssid = "IOT_LAB";          
const char* password = "Iot_Lab@367";  
const char* ditto_host = "http://your.ditto.host"; 
const char* ditto_thing_id = "com.mspvlceit:lm35-sensor1";
const char* ditto_username = "ditto";
const char* ditto_password = "ditto";

void setup() {
  Serial.begin(115200);
  Serial.println("Setup complete");
}

void loop() {
  Serial.println("Loop running");
  delay(1000);
}

WiFiClient wifiClient;
HTTPClient http;

void connectToWiFi() {
  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi...");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

float readTemperature() {          
  int adcVal = analogRead(PIN_LM35);
  float milliVolt = adcVal * (ADC_VREF_mv / ADC_RESOLUTION);
  return milliVolt / 10.0;
}                                
String createPayload(float temperature) {  
  char tempStr[8];
  dtostrf(temperature, 6, 2, tempStr);
  return String("{\"value\": ") + String(tempStr) + String("}");
}                                         

void sendToDitto(String payload) {          
  if (WiFi.status() == WL_CONNECTED) {
    String url = String(ditto_host) + "/api/2/things/" + String(ditto_thing_id) + "/feature/temperature/properties/value";
    http.begin(wifiClient, url);
    http.setAuthorization(ditto_username, ditto_password);
    http.addHeader("Content-Type", "application/json");
    int httpCode = http.PUT(payload);
    if (httpCode > 0) {
      Serial.printf("HTTP PUT status: %d\n", httpCode);
      if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_NO_CONTENT) {
        Serial.println("Temperature updated in Ditto");
      } else {
        Serial.println("Failed to update Ditto");
        Serial.println(http.getString());
      }
    } else {
      Serial.printf("HTTP PUT failed, error: %s\n", http.errorToString(httpCode).c_str());
    }
    http.end();
  } else {
    Serial.println("WiFi disconnected");
  }
}