#define BLYNK_TEMPLATE_ID "TMPL2jVKlarg0"
#define BLYNK_TEMPLATE_NAME "iot assignment"
#define BLYNK_AUTH_TOKEN "Rgm4tYJsshqBLS5v33i9caChWtC50kPf"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"

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

#define DHT_PIN 15
#define LDR_PIN 36
#define LIGHT_PIN 5

DHTesp dht;
bool enableTempRead = true;
BlynkTimer timer;

void sendTemperature() {
  if (enableTempRead) {
    float temperature = dht.getTemperature();
    if (isnan(temperature)) return;
    Blynk.virtualWrite(V0, temperature);
    if (temperature < 10 || temperature > 50) {
      Blynk.notify("Temperature Alarm! Value: " + String(temperature));
    }
  }
}

void handleLight() {
  int lightValue = analogRead(LDR_PIN);
  String timeOfDay;
  if (lightValue < 200) {
    timeOfDay = "Morning";
  } else if (lightValue < 700) {
    timeOfDay = "Afternoon";
  } else {
    timeOfDay = "Evening";
  }
  Blynk.virtualWrite(V1, timeOfDay);
  if (lightValue > 200) {
    digitalWrite(LIGHT_PIN, HIGH);
  } else {
    digitalWrite(LIGHT_PIN, LOW);
  }
}

BLYNK_WRITE(V2) {
  enableTempRead = param.asInt();
}

void setup() {
  Serial.begin(115200);
  dht.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(LIGHT_PIN, OUTPUT);
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(2000L, sendTemperature);
  timer.setInterval(2000L, handleLight);
}

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