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

const int servoPin = 18;
const int r = 4;
const int g = 2;
const int b = 15;
const int lightPin = 13;

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "test.mosquitto.org";

WiFiClient espClient;
PubSubClient client(espClient);
Servo servo;

void setup_wifi() {
  delay(10);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA);
  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) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  String message;
  for (int i = 0; i < length; i++) {
    message += (char)payload[i];
  }
  Serial.println(message);

  if (String(topic) == "/data/command") {
    if (message == "TurnOnRedLED") {
           // Allume la LED en rouge
      digitalWrite(r, HIGH); // Rouge ON
      digitalWrite(g, LOW);  // Vert OFF
      digitalWrite(b, LOW);  // Bleu OFF
    } else if (message == "TurnOnLight") {
      digitalWrite(lightPin, HIGH);
    } else if (message == "TurnOffLight") {
      digitalWrite(lightPin, LOW);
    }else if (message == "TurnOnFan") {
       for (int pos = 0; pos <= 180; pos += 1) {
    servo.write(pos);
    delay(15);
  }
  for (int pos = 180; pos >= 0; pos -= 1) {
    servo.write(pos);
    delay(15);
  }
    }
    
  }
}

void reconnect() {
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    String clientId = "ESP32Client-";
    clientId += String(random(0xffff), HEX);
    if (client.connect(clientId.c_str())) {
      Serial.println("Connected");
      client.subscribe("/data/command");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}

void setup() {
  Serial.begin(115200);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  client.setCallback(callback);
  servo.attach(servoPin, 500, 2400);

 
  // Configuration des pins RGB
  pinMode(r, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(lightPin, OUTPUT);
}

void loop() {
  if (!client.connected()) {
    reconnect();
  }
  client.loop();

  // Exemple de mouvement de servo
 
}