#include <WiFi.h>
#include <HTTPClient.h>
#include "DHTesp.h"

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

// ThingSpeak
String writeAPIKey = "A6GO86RO0MDEFHFX";

// Pin
const int DHT_PIN = 15;
const int LED_LAMPU = 18;
const int LED_KIPAS = 19;

DHTesp dhtSensor;

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

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  pinMode(LED_LAMPU, OUTPUT);
  pinMode(LED_KIPAS, OUTPUT);

  WiFi.begin(ssid, password);

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

  Serial.println("\nWiFi Terhubung!");
}

void loop() {

  TempAndHumidity data = dhtSensor.getTempAndHumidity();

  float suhu = data.temperature;
  float hum = data.humidity;

  int lamp = 0;
  int fan = 0;

  if (suhu > 30) {
    digitalWrite(LED_KIPAS, HIGH);
    digitalWrite(LED_LAMPU, LOW);
    fan = 1;
  }
  else if (suhu < 25) {
    digitalWrite(LED_LAMPU, HIGH);
    digitalWrite(LED_KIPAS, LOW);
    lamp = 1;
  }
  else {
    digitalWrite(LED_LAMPU, LOW);
    digitalWrite(LED_KIPAS, LOW);
  }

  Serial.print("Suhu : ");
  Serial.print(suhu);
  Serial.print(" C | Humidity : ");
  Serial.println(hum);

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

    HTTPClient http;

    String url = "http://api.thingspeak.com/update?api_key=" +
                 writeAPIKey +
                 "&field1=" + String(suhu) +
                 "&field2=" + String(hum) +
                 "&field3=" + String(lamp) +
                 "&field4=" + String(fan);

    http.begin(url);

    int httpCode = http.GET();

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

    http.end();
  }

  delay(20000); // ThingSpeak minimal 15 detik
}