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#include <DHT.h>

#define DHTPIN_1 2
#define DHTTYPE DHT11

DHT dht_vanna_1p(DHTPIN_1, DHTTYPE);

#define FAN_PIN_1 22 // Пін для управління vent_vanna_1p

bool fanState_1 = false;

unsigned long lastHumidityCheckTime_1 = 0;
unsigned long lastHumidityPrintTime = 0;

unsigned long lastFanOffTime_1 = 0;

const int maxSavedHumidityReadings = 30;
int savedHumidityReadings_1[maxSavedHumidityReadings];
int savedHumidityIndex_1 = 0;

int lastValidHumidity_1 = 0;

const unsigned long humidityCheckInterval = 5000;
const unsigned long fanOffDelay = 60000;
const int minHumidity = 5;
const int maxHumidity = 95;

void setup() {
  Serial.begin(9600);
  delay(3000); // Затримка 3 секунди при першому завантаженні
  dht_vanna_1p.begin();

  pinMode(FAN_PIN_1, OUTPUT);

  digitalWrite(FAN_PIN_1, HIGH);
}

void loop() {
  unsigned long currentMillis = millis();

  // Перевіряємо вологість для vent_vanna_1p
  if (currentMillis - lastHumidityCheckTime_1 >= humidityCheckInterval) {
    lastHumidityCheckTime_1 = currentMillis;
    int humidity_1 = round(dht_vanna_1p.readHumidity());

    if (!isnan(humidity_1) && humidity_1 >= minHumidity && humidity_1 <= maxHumidity) {
      lastValidHumidity_1 = humidity_1;
      saveHumidityReading(savedHumidityReadings_1, savedHumidityIndex_1, humidity_1);

      if (currentMillis - lastHumidityPrintTime >= 10000) {
        Serial.print("Вологість vent_vanna_1p: ");
        Serial.print(humidity_1);
        Serial.println(" %");
        lastHumidityPrintTime = currentMillis;
      }

      if (humidity_1 > 65 && !fanState_1) {
        digitalWrite(FAN_PIN_1, LOW);
        fanState_1 = true;
      } else if (humidity_1 <= 65 && fanState_1 && currentMillis - lastFanOffTime_1 >= fanOffDelay) {
        digitalWrite(FAN_PIN_1, HIGH);
        fanState_1 = false;
        lastFanOffTime_1 = currentMillis;
      }
    } else {
      Serial.println("Помилка зчитування вологості vent_vanna_1p! Використовуємо останнє дійсне значення: " + String(lastValidHumidity_1) + " %");
      humidity_1 = getLastValidHumidity(savedHumidityReadings_1, savedHumidityIndex_1);
      lastValidHumidity_1 = humidity_1;
    }
  }
}

void saveHumidityReading(int readings[], int &index, int humidity) {
  readings[index] = humidity;
  index = (index + 1) % maxSavedHumidityReadings;
}

int getLastValidHumidity(int readings[], int index) {
  int sum = 0;
  int count = 0;

  for (int i = 0; i < maxSavedHumidityReadings; i++) {
    if (readings[i] >= minHumidity && readings[i] <= maxHumidity) {
      sum += readings[i];
      count++;
    }
  }

  if (count > 0) {
    return sum / count;
  } else {
    return 0;
  }
}