#include <WiFi.h>
#include <HTTPClient.h>
#include <SPI.h>
#include <MFRC522.h>

#define SS_PIN 5
#define RST_PIN 22

MFRC522 rfid(SS_PIN, RST_PIN);

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

/* استخدم HTTP */
String server = "http://localhost/api.php?card=";
void setup() {

  Serial.begin(115200);

  WiFi.begin(ssid, password);

  Serial.print("Connecting WiFi");

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

  Serial.println();
  Serial.println("WiFi Connected");

  SPI.begin(18,19,23,5);
  rfid.PCD_Init();

  Serial.println("RFID Ready - Scan Card");
}

void loop() {

  if (!rfid.PICC_IsNewCardPresent()) return;
  if (!rfid.PICC_ReadCardSerial()) return;

  String cardID = "";

  for (byte i = 0; i < rfid.uid.size; i++) {

    if (rfid.uid.uidByte[i] < 0x10) cardID += "0";

    cardID += String(rfid.uid.uidByte[i], HEX);
  }

  cardID.toUpperCase();

  Serial.println("Card ID: " + cardID);

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

    HTTPClient http;

String url = server + cardID;  // + "&i=1";


    Serial.println("Request URL:");
    Serial.println(url);

    http.begin(url);

    /* حل مشكلة حماية JavaScript */
    http.addHeader("User-Agent", "ESP32");

    int httpCode = http.GET();

    Serial.print("HTTP Code: ");
    Serial.println(httpCode);

    if (httpCode > 0) {

      String payload = http.getString();

      Serial.println("Server Response:");
      Serial.println(payload);

    } else {

      Serial.println("Connection Failed");

    }

    http.end();
  }

  delay(3000);
}