#include <WiFi.h>
#include <ThingSpeak.h>

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

// ThingSpeak
unsigned long myChannelNumber = 3411534;
const char* myWriteAPIKey = "LOPYZ3CBHOGKBJLB";

#define RELAYPIN 2
#define SERVOPIN 13

WiFiClient client;

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

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

  pinMode(SERVOPIN, OUTPUT);

  // WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Menghubungkan ke Wi-Fi...");
  }

  Serial.println("Terhubung ke Wi-Fi");

  ThingSpeak.begin(client);
}

void loop() {
  // Nilai manual (dummy data)
  float temperature = 25.0;
  float humidity = 28.0;
  long distance = 5;

  // Relay aktif jika suhu > 30°C
  if (temperature > 30) {
    digitalWrite(RELAYPIN, HIGH);
  } else {
    digitalWrite(RELAYPIN, LOW);
  }

  // Tampilkan ke Serial Monitor
  Serial.print("Suhu: ");
  Serial.print(temperature);
  Serial.print(" °C, Kelembapan: ");
  Serial.print(humidity);
  Serial.print(" %, Jarak: ");
  Serial.print(distance);
  Serial.println(" cm");

  // Kirim ke ThingSpeak
  ThingSpeak.setField(1, temperature);
  ThingSpeak.setField(2, humidity);
  ThingSpeak.setField(3, distance);

  int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

  if (x == 200) {
    Serial.println("Update channel berhasil.");
  } else {
    Serial.println("Masalah update channel. HTTP error: " + String(x));
  }

  delay(20000);
}