#if defined(ESP8266)
  #include <ESP8266WiFi.h>
  #include <ESP8266HTTPClient.h>
#elif defined(ESP32)
  #include <WiFi.h>
  #include <HTTPClient.h>
#endif
#include <ArduinoJson.h>

const char* ssid = "Wokwi-GUEST";  
const char* password = "";
const char* url = "https://04d9-103-81-220-224.ngrok-free.app";

int LED1 = 25;
int IR1 = 15;
int val = 0;

void setup() {
  pinMode(LED1, OUTPUT);
  pinMode(IR1, INPUT_PULLUP);
  Serial.begin(115200);
  connectToWiFi(ssid, password);
}

void loop() {
  val = digitalRead(IR1);
  if (val == LOW) {
    digitalWrite(LED1, HIGH);
    sendSensorData(val);
    delay(1000);
  } else {
    digitalWrite(LED1, LOW);
  }
}

void connectToWiFi(const char* ssid, const char* password) {
  Serial.println("Menghubungkan ke WiFi...");
  WiFi.mode(WIFI_STA); 
  WiFi.begin(ssid, password);
  int timeout = 30;
  
  while (WiFi.status() != WL_CONNECTED && timeout > 0) {
    delay(1000);
    Serial.print(".");
    timeout--;
  }

  if (WiFi.status() == WL_CONNECTED) {
    Serial.println("\nWiFi Terhubung!");
    Serial.print("Alamat IP: ");
    Serial.println(WiFi.localIP());
  } else {
    Serial.println("\nGagal terhubung ke WiFi, restart...");
    ESP.restart();
  }
}

void sendSensorData(int value) {
  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("WiFi tidak terhubung, mencoba kembali...");
    connectToWiFi(ssid, password);
    return;
  }

  HTTPClient http;
  http.begin(url);
  
  StaticJsonDocument<200> jsonDoc;
  jsonDoc["sensor_value"] = value;
  
  String jsonString;
  serializeJson(jsonDoc, jsonString); 

  int httpCode = http.POST(jsonString);  // Kirim request POST
  if (httpCode > 0) {
    String response = http.getString();
    Serial.println("Server response: " + response);
  } else {
    Serial.print("Error in HTTP request: ");
    Serial.println(httpCode);
  }
  
  http.end();
}