#define BLYNK_TEMPLATE_ID "TMPL60Pne1P_6"
#define BLYNK_TEMPLATE_NAME "Fire Alarm"

#include <Adafruit_NeoPixel.h> 
#include <ESP32Servo.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <DHT.h>
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

#define AIRQUALITY_PIN V0
#define TEMPARATURE_PIN V1
#define SHUTDOWN_PIN V2

#define BUZZER_PIN 5
#define FAN_SERVO_PIN 12
#define SPRINKLER_SERVO_PIN 14
#define DHT_PIN 4
#define PINPIXELS 13
#define NUM_LEDS 24

Servo fanServo;
Servo sprinklerServo;
DHT dht(DHT_PIN, DHT22); 
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUM_LEDS, PINPIXELS, NEO_GRB + NEO_KHZ800);

char auth[] = "kGxYwcnOnGpoOaDm9i6M62ZTes-G7oS1";
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

bool systemOn = true;

BLYNK_WRITE(SHUTDOWN_PIN){
	if(param.asInt() == HIGH){
		ESP.restart();
	}
}

int pos = 0;
void setup() {
  pinMode(BUZZER_PIN, OUTPUT);
  fanServo.attach(FAN_SERVO_PIN);
  sprinklerServo.attach(SPRINKLER_SERVO_PIN);
  dht.begin();
	pixels.begin();
	pixels.show();
	Blynk.begin(auth, ssid, pass);


}
void loop() {
	Blynk.run();

  float tempValue = dht.readTemperature();
	float gasValue = dht.readHumidity(); //act as gasSensor, so set >0

	Blynk.virtualWrite(AIRQUALITY_PIN, gasValue);
	Blynk.virtualWrite(TEMPARATURE_PIN, tempValue);


  if (gasValue > 0 && tempValue > 35.0) {
			tone(BUZZER_PIN, 300, 100);
			activateSprinkler();
			activateFan();
			repeatCombinedPixels();
	}
	else if(gasValue > 0){
		tone(BUZZER_PIN, 300, 200);
		repeatYellowPixels();
		deactivateSprinkler();
		activateFan();
		delay(10);
	}
	else if (tempValue > 35.0) {
		tone(BUZZER_PIN, 300, 300);
		repeatRedPixels();
		deactivateFan();
		activateSprinkler();
		delay(10);
  }
	else{
		noTone(BUZZER_PIN);
		for (int i = 0; i < NUM_LEDS; i++)
 		{
    pixels.setPixelColor(i, pixels.Color(0, 0, 0)); // Turn off NeoPixels
  	}
		pixels.show();
		deactivateFan();
		deactivateSprinkler();
	}
}

void repeatYellowPixels()
{
	for(int i = 0; i < pixels.numPixels(); i++)
	{
		pixels.setPixelColor(i, pixels.Color(255, 255, 0));
		pixels.show();
		delay(10);
		pixels.setPixelColor(i, pixels.Color(0,0,0));
	}
	
}

void repeatRedPixels()
{
  for(int i = 0; i < pixels.numPixels(); i++)
	{
		pixels.setPixelColor(i, pixels.Color(255, 0, 0));
		pixels.show();
		delay(10);
		pixels.setPixelColor(i, pixels.Color(0,0,0));
	}
}

void repeatYellowRedPixels(){
	for (int i = 0; i < pixels.numPixels(); i += 2)
  	{
    	pixels.setPixelColor(i, pixels.Color(255, 255, 0));
    	pixels.setPixelColor(i + 1, pixels.Color(255, 0, 0));
 	 }
 	pixels.show();
  	delay(10); 

  	for (int i = 0; i < pixels.numPixels(); i++)
  	{
   		pixels.setPixelColor(i, pixels.Color(0, 0, 0));
 	}
  	pixels.show();
}

void repeatCombinedPixels()
{
  	for (int j = 0; j < 4; j++) // Repeat the pattern 4 times
  	{
    	repeatYellowRedPixels();
  	}
}

void activateFan(){
	fanServo.attach(FAN_SERVO_PIN);
  fanServo.write(180);
	delay(10);
}
 
void deactivateFan() {
  fanServo.detach();
}

void activateSprinkler(){
  sprinklerServo.attach(SPRINKLER_SERVO_PIN);
	sprinklerServo.write(180);
	delay(10);

}

void deactivateSprinkler() {
  sprinklerServo.detach();
}