/* --- WIFI --- */
#include <WiFi.h>
#include <WiFiClient.h>
#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

/* --- BLYNK --- */
#define BLYNK_FIRMWARE_VERSION "0.1.0"
#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL42lW-UQrP"
#define BLYNK_TEMPLATE_NAME "Wokwi ESP32"
#define BLYNK_AUTH_TOKEN "Lm6d1CrJsALzagQrCDafTc__Jbl7CLuM"
#include <BlynkSimpleEsp32.h>
BlynkTimer timer;

/* --- DHT11 --- */
#include <DHT.h>
#define DHTPIN 15    
#define DHTTYPE DHT22   
DHT dht(DHTPIN, DHTTYPE);


/* --- BUTTON --- */
#define BUTTON 17    
int q=0;

/* --- LED --- */
#define SAFE_LED 32
#define ALERT_LED 33
WidgetLED ALERT(V0);    // LED'den gelen veriler

/*
BLYNK_WRITE(V0) {
  int as = param.asInt();
  as ? digitalWrite(SAFE_LED, HIGH) : digitalWrite(SAFE_LED, LOW);
} */

void blink(int a)
 {
   digitalWrite(a,!digitalRead(a));
   delay(200);
 }

BLYNK_WRITE(V2) {   // sıfırlama butonu
  int bs = param.asInt();
  bs ? q=1 : q=0;
} 

void readbutton(int a)
{
 if(digitalRead(a)==LOW)
 {
  delay(20);
  if(digitalRead(a)==LOW)
  {
   q+=1;
   if(q>=2) q=0;
   while(digitalRead(a)==LOW);
  }
 }
}

void SendData() {
  float h = dht.readHumidity();
  float t = dht.readTemperature(); 
  int b = digitalRead(BUTTON);

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  if (isnan(b)) {
    Serial.println("Failed to read from BUTTON!");
    return;  
  }
  if(t<=20||t>=40||h<40||h>60||q!=0)
  {
    digitalWrite(SAFE_LED,LOW);
    blink(ALERT_LED);
  }
  else digitalWrite(SAFE_LED,HIGH), digitalWrite(ALERT_LED,LOW);
  Blynk.virtualWrite(V1, digitalRead(SAFE_LED));  //durum LEDi
  Blynk.virtualWrite(V0, digitalRead(ALERT_LED)); //uyarı LEDi
  Blynk.virtualWrite(V4, t);                      //sıcaklık göstergesi
  Blynk.virtualWrite(V3, h);                      //nem göstergesi
}

void setup() {
  pinMode(SAFE_LED, OUTPUT);
  pinMode(ALERT_LED, OUTPUT);
  pinMode(BUTTON, INPUT);
  dht.begin();
  Serial.begin(9600);
  delay(1000);

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD,6);
    Serial.print("Connecting to Wi-Fi");
    while (WiFi.status() != WL_CONNECTED)
    {
        Serial.print(".");
        delay(300);
    }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();
  
  Blynk.begin(BLYNK_AUTH_TOKEN, WIFI_SSID, WIFI_PASSWORD);
  timer.setInterval(100L, SendData);



}

void loop() {
  readbutton(BUTTON);
  Blynk.run(); 
  timer.run();
}