#define dirPin 2
#define stepPin 3
#define btnCCW 8
#define btnCW 9
#define start 10

class button {
  public:
    button (byte pin) {
      _pin = pin;
      pinMode(_pin, INPUT);
    }
    bool click() {
      bool btnState = digitalRead(_pin);
      if (btnState && millis() - _tmr >= 250) {
        _tmr = millis();
        return true;
      }
      return false;
    }
  private:
    byte _pin;
    uint32_t _tmr;
};


void setup() {
  Serial.begin(9600);
  pinMode(stepPin, OUTPUT);
  pinMode(dirPin, OUTPUT);
  pinMode(btnCCW, INPUT);
  pinMode(btnCW, INPUT);
  pinMode(start, INPUT);
}

button btn1(10);
bool btn = false;
bool isPause = false;
bool cycleEnded = false;

void loop() {

if(btn1.click()) btn = true;

  if (btn & !cycleEnded) {
    btn = false;
    Serial.println("press");
    digitalWrite(dirPin, LOW);
    for (int i = 0; i < 200; i++) {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(5000);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(5000);

    if(btn1.click()){
      isPause = true;
      //Serial.println(isPause);
      Serial.println("Pause ON");
      while(isPause){
        delay(10);
        if(btn1.click()){
          Serial.println("Pause OFF");
          isPause = false;
        } 
      }
    } 
    cycleEnded = true;
  }
}

if (btn & cycleEnded) {
  btn = false;
    Serial.println("press");
    digitalWrite(dirPin, HIGH);
    for (int i = 0; i < 200; i++) {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(5000);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(5000);

    if(btn1.click()){
      isPause = true;
      //Serial.println(isPause);
      Serial.println("Pause ON");
      while(isPause){
        delay(10);
        if(btn1.click()){
          Serial.println("Pause OFF");
          isPause = false;
        } 
      }
    } 
    cycleEnded = false;
  }
}

  if(digitalRead(btnCCW) == HIGH){
    digitalWrite(dirPin, LOW);
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(5000);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(5000);
    Serial.print("A");
  }

  if(digitalRead(btnCW) == HIGH){
    digitalWrite(dirPin, HIGH);
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(5000);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(5000);
    Serial.print("B");
  }
  
}