#include "ESP8266WiFi.h"
#include "DHT.h"

#define DHTPIN D4
#define ECHO D0
#define TRIG D1
#define LED_ULTRASONIC D5
#define LED_REVERSE D6
#define DHTTYPE DHT11 // DHT 11

DHT dht(DHTPIN, DHTTYPE);
String response;

const char server[] = "192.168.1.9";
const char* MY_SSID = "WIFI OKTA";
const char* MY_PWD = "Dimitha_123";
WiFiClient client;

int getDistance() {
  digitalWrite(TRIG, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG, LOW);

  int duration = pulseIn(ECHO, HIGH);
  int distance = duration * 0.034 / 2;
  return distance;
}

void setup() {
  Serial.begin(9600);
  Serial.print("Connecting to ");
  Serial.println(MY_SSID);
  WiFi.begin(MY_SSID, MY_PWD);

  while (WiFi.status() != WL_CONNECTED) {
    delay(5000);
    Serial.print(".");
  }
  
  Serial.println("\nConnected to WiFi");
  Serial.println("\nCredentials accepted! Connected to WiFi\n");
  Serial.println("DHTxx test!");
  dht.begin();
  pinMode(TRIG, OUTPUT);
  pinMode(ECHO, INPUT);
  pinMode(LED_ULTRASONIC, OUTPUT);
  pinMode(LED_REVERSE, OUTPUT);
}

void loop() {
  int distance = getDistance();
  delay(1000); // Tambahkan delay 1 detik agar sensor DHT stabil

  float h = dht.readHumidity();
  float t = dht.readTemperature();

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print("%\t");
  Serial.print("Temperature: ");
  Serial.println(t);
  Serial.print("%\t");
  Serial.print("Distance: ");
  Serial.println(distance);

  if (distance < 10) {
    digitalWrite(LED_ULTRASONIC, HIGH);
    digitalWrite(LED_REVERSE, LOW);
    Serial.println("Dangerous, Please Move It");
  } else {
    digitalWrite(LED_ULTRASONIC, LOW);
    digitalWrite(LED_REVERSE, HIGH);
    Serial.println("It's Safe !!");
  }

  Serial.println("\nStart connecting to server...");

  if (client.connect(server, 80)) {
    Serial.println("Connected to server");
    WiFi.printDiag(Serial);

    client.print("GET /suhu/load.php?kelembapan=");
    client.print(h);
    client.print("&suhu=");
    client.print(t);
    client.print("&jarak=");
    client.print(distance);
    client.println(" HTTP/1.1");
    client.println("Host: 192.168.1.9");
    client.println();

  } else {
    Serial.println("Connection to server failed");
  }

  delay(5000);
}