#include <WiFi.h>
#include <HTTPClient.h>
#include <DHT.h>

#define DHTPIN 4
#define DHTTYPE DHT22
#define LDRPIN 34
#define POTPIN 35
#define PIRPIN 23
#define TRIGPIN 18
#define ECHOPIN 19

const char* ssid = "Wokwi-GUEST";        // Ganti dengan nama Wi-Fi
const char* password = ""; // Ganti dengan password Wi-Fi
const char* server = "http://api.thingspeak.com/update?api_key=YOUR_API_KEY";

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  
  // Koneksi Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  
  // Inisialisasi sensor
  dht.begin();
  
  pinMode(PIRPIN, INPUT);
  pinMode(TRIGPIN, OUTPUT);
  pinMode(ECHOPIN, INPUT);
}

float getDistance() {
  digitalWrite(TRIGPIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIGPIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIGPIN, LOW);
  long duration = pulseIn(ECHOPIN, HIGH);
  return (duration * 0.0343) / 2;
}

void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  int ldrValue = analogRead(LDRPIN);
  int airQuality = analogRead(POTPIN); // Simulasi nilai MQ-135
  bool motionDetected = digitalRead(PIRPIN);
  float distance = getDistance();

  // Kirim data ke ThingSpeak
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String url = String(server) +
                 "&field1=" + String(temperature) +
                 "&field2=" + String(humidity) +
                 "&field3=" + String(ldrValue) +
                 "&field4=" + String(airQuality) +
                 "&field5=" + String(distance) +
                 "&field6=" + String(motionDetected);
    
    http.begin(url);
    int httpCode = http.GET();
    if (httpCode > 0) {
      Serial.println("Data sent to ThingSpeak!");
    } else {
      Serial.println("Failed to send data");
    }
    http.end();
  }
  
  // Print data di Serial Monitor
  Serial.println("=== Sensor Data ===");
  Serial.print("Temperature: "); Serial.println(temperature);
  Serial.print("Humidity: "); Serial.println(humidity);
  Serial.print("Light Intensity: "); Serial.println(ldrValue);
  Serial.print("Air Quality: "); Serial.println(airQuality);
  Serial.print("Water Level (cm): "); Serial.println(distance);
  Serial.print("Motion Detected: "); Serial.println(motionDetected ? "Yes" : "No");
  
  delay(20000); // Kirim data setiap 20 detik
}