#define BLYNK_TEMPLATE_ID "TMPL6a6_s_S8x"
#define BLYNK_TEMPLATE_NAME "UTP IOT DILVI YOLA"
#define BLYNK_AUTH_TOKEN "ez0sK2QNgNSkgUs08ko6FkY654AgNa1L"
#define BLYNK_PRINT Serial

#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <DHT.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// Pin komponen
int redled = 19;
int yellowled = 4;
int blueled = 15;
int buzzpin = 23;

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

bool buzzerEnabled = true;

Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
DHT dht(14, DHT22);
BlynkTimer timer;

float t, h;  // Suhu dan kelembapan

// Mapping Virtual Pins
#define BUZZER_PIN V4
#define LED_RED_PIN V0
#define LED_YELLOW_PIN V1
#define LED_BLUE_PIN V2
#define TEMP_PIN V3
#define HUMIDITY_PIN V5
#define BUZZER_STATUS_PIN V6 // TAMBAHAN: Untuk menampilkan status "AMAN/WASPADA/TIDAK AMAN"

// Toggle dari Blynk untuk mengaktifkan/mematikan buzzer
BLYNK_WRITE(BUZZER_PIN) {
  buzzerEnabled = param.asInt();
}

void setup() {
  Serial.begin(115200);
  Wire.begin();
  Wire.setClock(400000);

  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("Gagal memulai OLED"));
    while (1);
  }

  Blynk.begin(auth, ssid, pass);
  dht.begin();

  pinMode(redled, OUTPUT);
  pinMode(yellowled, OUTPUT);
  pinMode(blueled, OUTPUT);
  pinMode(buzzpin, OUTPUT);

  timer.setInterval(2000L, sendSensorData);  // Update data tiap 2 detik
}

void loop() {
  Blynk.run();
  timer.run();
}

void sendSensorData() {
  t = dht.readTemperature();
  h = dht.readHumidity();

  if (isnan(t) || isnan(h)) {
    Serial.println("Gagal membaca sensor DHT!");
    return;
  }

  // Kirim data ke Blynk
  Blynk.virtualWrite(TEMP_PIN, t);
  Blynk.virtualWrite(HUMIDITY_PIN, h);

  // Tampilkan di OLED
  oled.clearDisplay();
  oled.setTextSize(1);
  oled.setTextColor(WHITE);
  oled.setCursor(0, 2);
  oled.print("Suhu: ");
  oled.print(t);
  oled.println(" *C");
  oled.print("Kelembapan: ");
  oled.print(h);
  oled.println(" %");
  oled.display();

  // Reset LED dan buzzer
  digitalWrite(blueled, LOW);
  digitalWrite(yellowled, LOW);
  digitalWrite(redled, LOW);
  noTone(buzzpin);

  // Reset LED Virtual
  Blynk.virtualWrite(LED_RED_PIN, 0);
  Blynk.virtualWrite(LED_YELLOW_PIN, 0);
  Blynk.virtualWrite(LED_BLUE_PIN, 0);

  // Logika kondisi pemantauan
  if (t >= 25 && t <= 30 && h >= 55 && h <= 65) {
    digitalWrite(blueled, HIGH);
    Blynk.virtualWrite(LED_BLUE_PIN, 1);
    Blynk.virtualWrite(BUZZER_STATUS_PIN, "AMAN");
    Serial.println("Status: AMAN");
  }
  else if (t >= 31 && t <= 33 && h >= 66 && h <= 70) {
    digitalWrite(yellowled, HIGH);
    Blynk.virtualWrite(LED_YELLOW_PIN, 1);
    Blynk.virtualWrite(BUZZER_STATUS_PIN, "WASPADA");
    Serial.println("Status: WASPADA");
  }
  else if (t < 25 || t > 33 || h < 50 || h > 70) {
    digitalWrite(redled, HIGH);
    Blynk.virtualWrite(LED_RED_PIN, 1);
    Blynk.virtualWrite(BUZZER_STATUS_PIN, "TIDAK AMAN");
    Serial.println("Status: TIDAK AMAN");

    if (buzzerEnabled) {
      Serial.println("Buzzer diaktifkan");
      tone(buzzpin, 500);
      Blynk.logEvent("warning", "PERINGATAN! Kondisi TIDAK AMAN!");
    } else {
      Serial.println("Buzzer dinonaktifkan");
      noTone(buzzpin);
    }
  }
}