#include <Arduino.h>
#include "DHT.h"

#define DHT_PIN 4
#define DHT_TYPE DHT22
#define LED_PIN 2

DHT dht(DHT_PIN, DHT_TYPE);

// ─── FreeRTOS Task ─────────────────────────────
void dht22Task(void *pvParameters) {

    for (;;) {

        float humidity = dht.readHumidity();
        float temperature = dht.readTemperature();

        if (isnan(humidity) || isnan(temperature)) {
            Serial.println("[DHT22] Read failed! Check wiring.");
            digitalWrite(LED_PIN, LOW);
        }
        else {

            float heatIndex = dht.computeHeatIndex(temperature, humidity, false);

            Serial.printf("Temp: %.1f°C | Humidity: %.1f%% | Heat Index: %.1f°C\n",
                          temperature, humidity, heatIndex);

            // LED condition
            if (humidity > 60 && temperature > 35) {

                digitalWrite(LED_PIN, HIGH);
                Serial.println("LED ON (High Temp & Humidity)");

            } else {

                digitalWrite(LED_PIN, LOW);
                Serial.println("LED OFF");

            }
        }

        vTaskDelay(pdMS_TO_TICKS(2000));
    }
}

// ─── Setup ─────────────────────────────
void setup() {

    Serial.begin(115200);

    pinMode(LED_PIN, OUTPUT);

    dht.begin();

    xTaskCreate(
        dht22Task,
        "DHT22_Task",
        2048,
        NULL,
        1,
        NULL
    );
}

void loop() {
    vTaskDelete(NULL);
}