// === Identifiants Blynk (à personnaliser) ===
#define BLYNK_TEMPLATE_ID "TMPL2u4zhdMJr"
#define BLYNK_TEMPLATE_NAME "ControleAccesRFID"
#define BLYNK_AUTH_TOKEN "937S-o2leZSfAMP2XTmc74EmBG04n-hf"

#include <Arduino.h>
#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// === Réseau Wi-Fi Wokwi ===
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// === Broches physiques ===
#define BUZZER_PIN 14
#define GREEN_LED 26
#define RED_LED 27
#define RELAY_PIN 12
#define SERVO_PIN 13

Servo myServo;

// === Pins virtuels Blynk ===
#define VIRTUAL_INPUT V0    // Champ texte pour e-KTP
#define VIRTUAL_UNLOCK V1   // Bouton manuel

String receivedID = "";

// === SETUP ===
void setup() {
  Serial.begin(115200);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(GREEN_LED, OUTPUT);
  pinMode(RED_LED, OUTPUT);
  pinMode(RELAY_PIN, OUTPUT);

  digitalWrite(BUZZER_PIN, LOW);
  digitalWrite(GREEN_LED, LOW);
  digitalWrite(RED_LED, LOW);
  digitalWrite(RELAY_PIN, LOW);

  myServo.attach(SERVO_PIN);
  myServo.write(0); // Porte fermée

  Serial.println("Système prêt avec Blynk !");
}

// === Lecture du champ texte V0 (e-KTP) ===
BLYNK_WRITE(VIRTUAL_INPUT) {
  receivedID = param.asString();
  receivedID.trim();

  if (isValidFormat(receivedID)) {
    if (receivedID.equals("12 34 56 78")) {
      accessGranted();
    } else {
      accessDenied();
    }
  } else {
    Serial.println(" Format invalide reçu !");
    Blynk.virtualWrite(V0, "Format: XX XX XX XX");
  }
}

// === Bouton manuel V1 ===
BLYNK_WRITE(VIRTUAL_UNLOCK) {
  int state = param.asInt();
  if (state == 1) {
    accessGranted();
  }
}

// === LOOP PRINCIPALE ===
void loop() {
  Blynk.run();
}

// === Vérifie le format "XX XX XX XX" ===
bool isValidFormat(String input) {
  if (input.length() == 11 && input.charAt(2) == ' ' && input.charAt(5) == ' ' && input.charAt(8) == ' ') {
    for (int i = 0; i < input.length(); i++) {
      if (i != 2 && i != 5 && i != 8 && !isDigit(input.charAt(i))) {
        return false;
      }
    }
    return true;
  }
  return false;
}

// === Accès autorisé ===
void accessGranted() {
  Serial.println(" Accès autorisé !");
  Blynk.logEvent("access_granted", "Ouverture autorisée via e-KTP ou bouton");

  digitalWrite(BUZZER_PIN, HIGH);
  digitalWrite(GREEN_LED, HIGH);
  digitalWrite(RELAY_PIN, HIGH);
  myServo.write(40); // Ouvre la porte (angle 40° ou 90° selon servo)

  delay(5000);

  myServo.write(0);  // Ferme
  digitalWrite(BUZZER_PIN, LOW);
  digitalWrite(GREEN_LED, LOW);
  digitalWrite(RELAY_PIN, LOW);
}

// === Accès refusé ===
void accessDenied() {
  Serial.println("Accès refusé !");
  Blynk.logEvent("access_denied", "e-KTP non reconnu");

  digitalWrite(BUZZER_PIN, HIGH);
  digitalWrite(RED_LED, HIGH);
  delay(5000);
  digitalWrite(BUZZER_PIN, LOW);
  digitalWrite(RED_LED, LOW);
}