#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>

#define DHTPIN 4
#define DHTTYPE DHT22
#define BUZZER_PIN 15
#define TEMP_THRESHOLD 30

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);

float temperature = 0;
float humidity = 0;

void readSensorTask(void *pvParameters) {
  while (1) {
    temperature = dht.readTemperature();
    humidity = dht.readHumidity();
    vTaskDelay(pdMS_TO_TICKS(2000));
  }
}

void displayAndBuzzerTask(void *pvParameters) {
  while (1) {
    lcd.clear();
    if (temperature > TEMP_THRESHOLD) {
      digitalWrite(BUZZER_PIN, HIGH);
      lcd.setCursor(0, 0);
      lcd.print("High Priority");
      lcd.setCursor(0, 1);
      lcd.print("Temp: ");
      lcd.print(temperature);
    } else {
      digitalWrite(BUZZER_PIN, LOW);
      lcd.setCursor(0, 0);
      lcd.print("Temp:");
      lcd.print(temperature);
      lcd.setCursor(0, 1);
      lcd.print("Hum:");
      lcd.print(humidity);
    }
    vTaskDelay(pdMS_TO_TICKS(2000));
  }
}

void setup() {
  dht.begin();
  lcd.init();
  lcd.backlight();
  pinMode(BUZZER_PIN, OUTPUT);
  digitalWrite(BUZZER_PIN, LOW);

  xTaskCreate(readSensorTask, "ReadSensor", 2048, NULL, 1, NULL);
  xTaskCreate(displayAndBuzzerTask, "DisplayBuzzer", 2048, NULL, 1, NULL);
}

void loop() {
}