#define BLYNK_TEMPLATE_ID "TMPL3RknGP_U7"
#define BLYNK_TEMPLATE_NAME "ESP32"
#define BLYNK_AUTH_TOKEN "o7N48Q-9vJ2e1uvai6qjzaNEUfsORyFt"

#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

#include <DHT.h>
#include <Wire.h>
#include <RTClib.h>

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

#define DHTPIN 4
#define DHTTYPE DHT22

#define BUTTON_PIN 15
#define LED_PIN 2
#define BUZZER_PIN 18

DHT dht(DHTPIN, DHTTYPE);
RTC_DS1307 rtc;

BlynkTimer timer;

int inhalerCount = 0;
bool lastButtonState = HIGH;

void sendData()
{
  float temp = dht.readTemperature();
  float hum = dht.readHumidity();

  if (!isnan(temp))
    Blynk.virtualWrite(V1, temp);

  if (!isnan(hum))
    Blynk.virtualWrite(V2, hum);

  Blynk.virtualWrite(V0, inhalerCount);
}

void checkButton()
{
  bool state = digitalRead(BUTTON_PIN);

  if (lastButtonState == HIGH && state == LOW)
  {
    inhalerCount++;

    digitalWrite(LED_PIN, HIGH);
    tone(BUZZER_PIN, 1000, 300);

    Blynk.virtualWrite(V0, inhalerCount);

    if (inhalerCount >= 6)
    {
      Blynk.logEvent("dose_limit",
                     "Daily inhaler limit reached!");
    }

    delay(300);
    digitalWrite(LED_PIN, LOW);
  }

  lastButtonState = state;
}

void setup()
{
  Serial.begin(115200);

  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);

  dht.begin();

  Wire.begin();

  rtc.begin();

  Blynk.begin(auth, ssid, pass);

  timer.setInterval(2000L, sendData);
  timer.setInterval(100L, checkButton);
}

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