#include <FirebaseESP32.h>
#include  <WiFi.h> 
#include "DHT.h" 

#define FIREBASE_HOST "https://smart-home-7b44f-default-rtdb.firebaseio.com" 
#define WIFI_SSID "Wokwi-GUEST" 
#define WIFI_PASSWORD "" 
#define FIREBASE_Authorization_key "oTRPje2my9ROlP2dIhJMzEd66sd3arqmtC4WG6cv" 
FirebaseData firebaseData; 
FirebaseJson json; 

int led = 27; 
String message = ""; 
String message1 = ""; 
String s_pir = ""; 
String b = "";
String c = ""; 
bool a = 0; 
#define pir 14 
#define buzzer 12 
#define DHTPIN 13 
#define DHTTYPE DHT22 
DHT dht(DHTPIN, DHTTYPE); 

void setup() {
 pinMode(led, OUTPUT);
 pinMode(pir, INPUT); 
 pinMode(buzzer, OUTPUT);  
 Serial.begin(115200); 
 dht.begin();
 WiFi.begin (WIFI_SSID, WIFI_PASSWORD); 
 Serial.println("Connecting...");
 
 while (WiFi.status() != WL_CONNECTED) { 
   Serial.println("NOT CONNECTED");
   delay(300);
   }
 b = WIFI_SSID; 
 Serial.println();
 Serial.print("IP Address: "); 
 Serial.println(WiFi.localIP()); 
 Serial.println();
 Firebase.begin(FIREBASE_HOST,FIREBASE_Authorization_key); 
}

void loop() {
 bool state_pir = digitalRead(pir); 
 if (Firebase.getString(firebaseData, "/ESP32APP_LED/LED")) {
   String message_fb = firebaseData.stringData();
   if (message_fb != message) {
     message = message_fb;
     if(message.indexOf("LED ON") != -1){digitalWrite(led, HIGH);}
     if(message.indexOf("LED OFF") != -1){digitalWrite(led, LOW);}
     }
   }
   
 if (Firebase.getString(firebaseData, "/ESP32APP_MOTION/ALARM_SET")) {
   String message1_fb = firebaseData.stringData();
   if (message1_fb != message1) {
     message1 = message1_fb;
     if(message1.indexOf("ALARM SET ON") != -1){
       a=1;
       s_pir = "READY";
       }
     if(message1.indexOf("ALARM SET OFF") != -1){
       digitalWrite(buzzer, LOW);
       s_pir = "OFF";
       a=0;
       }
     }
   }
   
 if (state_pir==1 && a==1){
   digitalWrite(buzzer, HIGH);
   s_pir = "THIEFFFF";
   }
 
 float hum = dht.readHumidity();
 float temp = dht.readTemperature();  

 if (isnan(hum) || isnan(temp)  ){
   Serial.println(F("Failed to read from DHT sensor!"));
   c = "FAILED";
   }
 else {
   c= "READY";
   }

 Serial.print("Temperature: ");
 Serial.print(temp);
 Serial.print("°C"); 
 Serial.print(" Humidity: ");
 Serial.print(hum); 
 Serial.print("%"); 
 Serial.print(" "); 
 Serial.print(message);
 Serial.print(" "); 
 Serial.print(message1);
 Serial.print(" ");
 Serial.print(s_pir); 
 Serial.println();

 Firebase.setFloat(firebaseData, "/ESP32APP_DHT11/TEMPERATURE", temp);
 Firebase.setFloat(firebaseData, "/ESP32APP_DHT11/HUMIDITY", hum); 
 Firebase.setString(firebaseData, "/ESP32APP_DHT11/STATUS", c);  
 Firebase.setString(firebaseData, "/ESP32APP_MOTION/BUZZER", s_pir); 
 Firebase.setString(firebaseData, "/ESP32APP_WIFI/STATUS", b); 
 delay(200); 
}