#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL6j2VdUSb1"
#define BLYNK_TEMPLATE_NAME "sevensegment"
#define BLYNK_AUTH_TOKEN "iJQn2RAIWvTK0_wlmkJ5ut_hwCF47TQY"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include <TM1637Display.h>

/* WIFI */
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

/* PIN */
#define CLK 13
#define DIO 14
#define BUZZER 2

TM1637Display display(CLK, DIO);

int nombor = 0;

/* ---------- BLYNK ---------- */

// Text Input – set nombor permulaan
BLYNK_WRITE(V1) {
  nombor = param.asInt();
  hadkanNombor();
  updateDisplay();
  bunyi();
}

// Button naik
BLYNK_WRITE(V2) {
  if (param.asInt() == 1) {   // <<< PENTING
    nombor++;
    hadkanNombor();
    updateDisplay();
    bunyi();
  }
}

// Button turun
BLYNK_WRITE(V3) {
  if (param.asInt() == 1) {   // <<< PENTING
    nombor--;
    hadkanNombor();
    updateDisplay();
    bunyi();
  }
}

/* ---------- FUNGSI ---------- */

void updateDisplay() {
  display.showNumberDec(nombor, true);
  Blynk.virtualWrite(V0, nombor);
  Serial.print("Nombor Giliran: ");
  Serial.println(nombor);
}

void bunyi() {
  digitalWrite(BUZZER, HIGH);
  delay(100);
  digitalWrite(BUZZER, LOW);
}

void hadkanNombor() {
  if (nombor < 0) nombor = 0;
  if (nombor > 9999) nombor = 9999;
}

/* ---------- SETUP ---------- */

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

  pinMode(BUZZER, OUTPUT);
  digitalWrite(BUZZER, LOW);

  display.setBrightness(7);
  display.showNumberDec(0);

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}

/* ---------- LOOP ---------- */
void loop() {
  Blynk.run();
}