// Servo Sweep example for the ESP32
#include <WiFi.h>
#include "PubSubClient.h"
#include "DHTesp.h"
#include <WiFi.h>
#include <ESP32Servo.h>

const int DHT_PIN = 15;


DHTesp dhtSensor;//

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqttServer = "broker.hivemq.com";
int port = 1883;
String stMac;
char mac[50];
char clientId[50];

WiFiClient espClient;
PubSubClient client(espClient);


//
int ledPin = 12;                // choose the pin for the LED
int inputPin = 14;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;
const float BETA = 3950;



const int servoPin = 18;

Servo servo;
int pos = 0;

void setup() {
  pinMode(ledPin, OUTPUT);      // declare LED as output
  pinMode(inputPin, INPUT);     // declare sensor as input

  Serial.begin(9600);
  servo.attach(servoPin, 500, 2400);
  analogReadResolution(10);
  pinMode(19,INPUT);
  pinMode(15,INPUT);
  pinMode(14,OUTPUT);
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  wifiConnect();  
    
  client.setServer(mqttServer, port);
   
}
void wifiConnect() {
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}

void mqttReconnect() {
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    long r = random(1000);
    sprintf(clientId, "clientId-%ld", r);
    if (client.connect(clientId)) {
      Serial.print(clientId);
      Serial.println(" connected");
      client.subscribe("topicName/led");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}
void callback(char* topic, byte* message, unsigned int length) {
  Serial.print("Message arrived on topic: ");
  Serial.print(topic);
  Serial.print(". Message: ");
  String stMessage;
  
  for (int i = 0; i < length; i++) {
    Serial.print((char)message[i]);
    stMessage += (char)message[i];
  }
  Serial.println();

  if (String(topic) == "servo") {
    Serial.print("Changing output to ");
    if(servoPin == "on"){
      Serial.println("on");
      digitalWrite(servoPin, 1);
    }
    else if(stMessage == "off"){
      Serial.println("off");
      digitalWrite(servoPin, 0);
    }
  }
}


void loop() {
  delay(1000);
  if (!client.connected()) {
    mqttReconnect();
  }
  client.loop();
  //สว่นของ air move
  val = digitalRead(inputPin);  // read input value
  if (val == HIGH) {            // check if the input is HIGH
    digitalWrite(ledPin, HIGH);  // turn LED ON
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;
      for (pos = 0; pos <= 180; pos += 1) {
        servo.write(pos);
        delay(15);
      }
    }
      
  } else {
    digitalWrite(ledPin, LOW); // turn LED OFF
    if (pirState == HIGH) {
      // we have just turned of
      Serial.println("Motion ended!");
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }//

  //ส่วนของ temperture
   TempAndHumidity  data = dhtSensor.getTempAndHumidity();
   //int analogValue = analogRead(15);
   float celsius = data.temperature ;
   Serial.println("Temp: " + String(data.temperature, 2) + "°C");
   Serial.println("Humidity: " + String(data.humidity, 1) + "%");
   Serial.println("---");
   (1000);
     if(celsius>=35){
        digitalWrite(15, HIGH);
        for (pos = 0; pos <= 180; pos += 1){
         servo.write(pos);
         delay(15); }

      } else {
        digitalWrite(14, LOW);
        delay(1000);}//
      client.publish("tem",String(celsius).c_str(),true);
      client.publish("motion",String(val).c_str(),true);
  
  
  //for (pos = 0; pos <= 180; pos += 1) {
    //servo.write(pos);
    //delay(15);
  //}
  //for (pos = 180; pos >= 0; pos -= 1) {
    //servo.write(pos);
    //delay(15);
  //}
}