#include <WiFi.h>
#include <PubSubClient.h>
#include <DHTesp.h>
#include <ESP32Servo.h>

Servo servo;
DHTesp dht;
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "test.mosquitto.org"; // MQTT broker
WiFiClient espClient;
PubSubClient client(espClient);
unsigned long lastMsg = 0;
const int ledPin1 = 5;
const int ledPin2 = 4;

void setup() {
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  servo.attach(13);
  Serial.begin(115200);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  client.setCallback(callback);
  dht.setup(15, DHTesp::DHT22);
}

void setup_wifi() {
  delay(10);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void callback(char* topic, byte* payload, unsigned int length) {
  String string;
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i = 0; i < length; i++) {
    string += (char)payload[i];
  }
  Serial.print(string);

  if (String(topic) == "/Servo1") { // Fixed the comparison
    Serial.print(" ");
    int status = string.toInt();
    int pos = map(status, 0, 180, 0, 180); // 100
    Serial.println(pos);
    servo.write(pos);
    delay(15);
    if (pos >= 90) {
      digitalWrite(ledPin2, HIGH); // Corrected the pin
    } else {
      digitalWrite(ledPin2, LOW); // Corrected the pin
    }
  }
}

void reconnect() {
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    if (client.connect("ESPClient")) {
      Serial.println("connected");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}

void loop() {
  if (!client.connected()) {
    reconnect();
  }
  client.loop();
  if (millis() - lastMsg > 2000) { // perintah publish data
    TempAndHumidity data = dht.getTempAndHumidity();
    String temp = String(data.temperature, 2);
    String hum = String(data.humidity, 2); // Added humidity
    int val1 = temp.toInt();
    int pos = map(val1, -40, 80, 0, 180);
    Serial.println(pos);
    servo.write(pos);
    if (val1 > 30) {
      digitalWrite(ledPin1, HIGH);
    } else {
      digitalWrite(ledPin1, LOW);
    }

    Serial.print("Temperature: ");
    Serial.println(temp);
    Serial.print("Humidity: ");
    Serial.println(hum);
    lastMsg = millis();
  }
  delay(100);
}