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

#define TRIG_PIN 5
#define ECHO_PIN 18

const char* ssid = "Wokwi-GUEST";
const char* password = "";

String serverName = "https://script.google.com/macros/s/AKfycbzFFfOc-Szp2or98LATxAVwk7yN-cdpd1wVYp9hqRwYOa1v8SlSZvIp6fHH9ctsbjHn/exec";

long duration;
float distance;

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

  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

  WiFi.begin(ssid, password);

  Serial.print("Connecting WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("\nWiFi Connected");
}

void loop() {

  // Sensor ultrasonik
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);

  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);

  digitalWrite(TRIG_PIN, LOW);

  duration = pulseIn(ECHO_PIN, HIGH);

  distance = duration * 0.034 / 2;

  Serial.print("Jarak: ");
  Serial.print(distance);
  Serial.println(" cm");

  if (WiFi.status() == WL_CONNECTED) {

    HTTPClient http;

    http.begin(serverName);

    http.addHeader("Content-Type", "application/json");

    String jsonData = "{";

    jsonData += "\"jarak\":" + String(distance) + ",";
    jsonData += "\"device\":\"ESP32-Ultrasonik\",";
    jsonData += "\"lokasi\":\"Lab\"";
    jsonData += "}";

    int httpResponseCode = http.POST(jsonData);

    Serial.print("HTTP Response: ");
    Serial.println(httpResponseCode);

    http.end();
  }

  delay(3000);
}