#include <WiFi.h>
#include <RTClib.h>
#include <DHTesp.h>
#include <Servo.h>
#include "WiFi.h"

// Servo object
Servo myservo;
int pos = 0;

// DHT sensor pin and object
const int DHT_PIN = 15;
DHTesp dhtSensor;

// RTC object
RTC_DS1307 rtc;

// Define filter value
int filter_value = 5;
int cooling_threshold = 50;
int alert_threshold = 70;

//Defining LED pins
const int ledpin1 = 3;
const int ledpin2 = 13;

#define WIFI_NETWORK "Wokwi-GUEST"
WiFiClient client;  //WiFi instance

// Function to read temperature
float readTemperature()
{
  TempAndHumidity data;
  data = dhtSensor.getTempAndHumidity();
  return data.temperature;
}

//Function to connect to the WiFi
void connectToWifi()
{
  Serial1.print("Connecting To Wifi");
  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_NETWORK);
  while(WiFi.status() != WL_CONNECTED)
  {
    Serial1.print("./");
    delay(100);
  }
  if(WiFi.status() !=WL_CONNECTED)
  {
    Serial1.print("Failed");
  }
  else
  {
    Serial1.print("Connected");
    Serial1.print(WiFi.localIP());
  }
}

//Function to perform air conditioning
void hvac()
{
    float Temp = readTemperature();
    if (Temp < cooling_threshold)
    {
      Serial.print("Server Room Temperature is Stable!!");
      if (ledpin2 == HIGH)
      {
          digitalWrite(ledpin2, LOW);
          
      }
      delay(2000);
    }
    if (Temp >= cooling_threshold && Temp < alert_threshold)
    {
      Serial.print("Server Room Temperature is Rising\nCooling System is activated");
      digitalWrite(ledpin2, HIGH);
      for(pos = 0;pos <=360; pos+=1)
      {
        myservo.write(pos);
        delay(15);
      }
      delay(2000);
    }
    if (Temp >= alert_threshold)
    {
      if (ledpin2 == HIGH)
      {
        digitalWrite(ledpin2, LOW);
      }
      Serial.print("Fire Alarm is Triggered");
      digitalWrite(ledpin1, HIGH);
    }
}

void setup() {
  // Initialize serial communication
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  myservo.attach(28);
  connectToWifi();

  // Initialize RTC
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1); // Halt program execution on error
  }
  if (!rtc.isrunning()) {
    Serial.println("RTC is NOT running, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); // Set RTC to compile time
  }
}

void loop() {
  DateTime now = rtc.now();
  hvac();
}