class Motor {
  private:
    int steps_per_revolution = 200 * 32;
    int DIR, STEP;
    int Frecventa, Cantitate = 4;
    boolean running = false, inAction = false, CW = true;
    long steps_per_pull = steps_per_revolution / Cantitate;//60 000 000 microsecunde = 1 min;
    long dela = ((60000000 / Frecventa) / 2) / steps_per_pull;
    long current_stage = 0;

  public:
    void setup(int DIR_, int STEP_) {
      DIR = DIR_;
      STEP = STEP_;
      pinMode(DIR, OUTPUT);
      pinMode(STEP, OUTPUT);
      digitalWrite(DIR, HIGH);
    }

    void toggle(int frecventa) {
      Frecventa = frecventa;
      running = !running;
    }

    boolean isInAction() {
      return inAction;
    }

    // Metoda care se apeleaza o singura data in functia loop();
    void loop() {
      Serial.println(running);
      Serial.println(inAction);
      if (running || inAction) {
        if (!inAction) {
          inAction = true;
        }
        if (CW) {
          if (++current_stage > steps_per_pull) {
            CW = false;
            digitalWrite(DIR, LOW);
          }
        } else {
          if (--current_stage < 0) {
            CW = true;
            digitalWrite(DIR, HIGH);
            inAction = false;
          }
        }

        digitalWrite(STEP, HIGH);
        delayMicroseconds(dela);
        digitalWrite(STEP, LOW);
        delayMicroseconds(dela);
      }
    }
};
Motor motor;