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

#define DHTPIN 4      // Pin untuk sensor DHT22
#define DHTTYPE DHT22 // Tipe sensor DHT22

#define MQ2_AO_PIN 32 // Pin analog untuk sensor MQ-2
#define MQ2_DO_PIN 25 // Pin digital untuk sensor MQ-2 (opsional)
#define PHPIN 33      // Pin untuk potensiometer (pengukuran pH)

DHT dht(DHTPIN, DHTTYPE);

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

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

  pinMode(MQ2_AO_PIN, INPUT);
  pinMode(MQ2_DO_PIN, INPUT); // opsional
  pinMode(PHPIN, INPUT);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}
void loop() {
  
  String serverUrl = "http://uas-genap.test/api/data.php?";

  // Membaca data dari sensor DHT22
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  // Pengecekan nilai temperature dan humidity dari sensor DHT22
  if (isnan(t) || isnan(h)) {
    Serial.println("Error reading from DHT sensor");
  } else {
    Serial.print("Suhu: ");
    Serial.print(t);
    Serial.println(" °C");
    Serial.print("Kelembapan: ");
    Serial.print(h);
    Serial.println(" %");
  }

  // Membaca data dari sensor MQ-2
  int airQualityAnalog = analogRead(MQ2_AO_PIN); // Membaca nilai analog dari sensor MQ-2
  int airQualityDigital = digitalRead(MQ2_DO_PIN); // Membaca nilai digital dari sensor MQ-2 (opsional)

  Serial.print("Gas CO2: ");
  Serial.println(airQualityAnalog);

  // Membaca nilai dari potensiometer dan mengonversinya menjadi nilai pH antara 1 dan 14
  int sensorValue = analogRead(PHPIN); // Baca nilai analog dari potensiometer
  float pH = map(sensorValue, 0, 4095, 1, 14); // Konversi nilai ADC ke rentang pH 1-14

  Serial.print("pH: ");
  Serial.println(pH);
  Serial.println("");

  // Send data to Laravel API
  if (WiFi.status() == WL_CONNECTED) {
    HTTPClient http;
    String temp = String(t);
    String hum = String(h);
    String co = String(airQualityAnalog);
    String ph = String(pH);

    http.begin(serverUrl+temp+hum+co+ph);
    
    int httpResponCode = http.GET();
    if (httpResponCode==200)
    Serial.println("Success send to server");
    else
    Serial.print("Failed send to sever");
  }

  delay(10000);
}