#include <WiFi.h>
// #include <PubSubClient.h> // DITUTUP karena Wokwi tidak mendukung

#define RELAY_PIN 4
#define POT_PIN 34
#define TEMP_PIN 35

const char* ssid = "Wokwi-GUEST";
const char* password = "";
// const char* mqtt_server = "broker.hivemq.com"; // MQTT dinonaktifkan

WiFiClient espClient;
// PubSubClient client(espClient); // KOMEN karena PubSubClient tidak tersedia

void setup_wifi() {
  Serial.print("Connecting to WiFi");
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(200);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected");
}

int motion = LOW; // Buat jadi variabel global agar tidak reset setiap loop

void setup() {
  Serial.begin(115200);
  pinMode(RELAY_PIN, OUTPUT);
  setup_wifi();
  Serial.println("Ketik '1' untuk motion HIGH, '0' untuk LOW di Serial Monitor.");
}

void loop() {
  // Baca input manual motion dari Serial Monitor
  if (Serial.available()) {
    char input = Serial.read();
    if (input == '1') {
      motion = HIGH;
    } else if (input == '0') {
      motion = LOW;
    }
  }

  int potValue = analogRead(POT_PIN);
  int tempValue = analogRead(TEMP_PIN);

  float voltage = tempValue * (3.3 / 4095.0); // ADC ESP32 12-bit
  float temperatureC = voltage * 100;

  // Threshold potensiometer (misalnya > 2000)
  int threshold = 2000;

  // LED hanya menyala jika motion HIGH dan potValue > threshold
  if (motion == HIGH && potValue < threshold) {
    digitalWrite(RELAY_PIN, HIGH);
  } else {
    digitalWrite(RELAY_PIN, LOW);
  }

  // Tampilkan di Serial Monitor
  Serial.print("Temp: ");
  Serial.print(temperatureC);
  Serial.print(" C, Pot: ");
  Serial.print(potValue);
  Serial.print(", Motion: ");
  Serial.print(motion == HIGH ? "Yes" : "No");
  Serial.print(", LED: ");
  Serial.println((motion == HIGH && potValue < threshold) ? "ON" : "OFF");

  delay(1000);
}