#include "SevSeg.h"
SevSeg sevseg;

#define in1 12
#define in2 A5
#define out1 10
#define out2 11
#define LED_Yellow A0
#define LED_Green A1

int count = 0 ;
int State_in1 = 0 ;
int State_in2 = 0 ;
int State_out1 = 0 ;
int State_out2 = 0 ;
int a, b;

void setup() {
  init_7sigment();
  pinMode(in1, INPUT );
  pinMode(in2, INPUT );
  pinMode(out1, INPUT );
  pinMode(out2, INPUT );
  pinMode(LED_Yellow, OUTPUT);
  pinMode(LED_Green, OUTPUT);
}

void loop() {
  State_in1 = digitalRead(in1);
  State_in2 = digitalRead(in2);
  State_out1 = digitalRead(out1);
  State_out2 = digitalRead(out2);

  if (count > 0) {
    digitalWrite( LED_Yellow, HIGH );
    digitalWrite( LED_Green, LOW );

  }
  else if (count == 0) {
    digitalWrite( LED_Yellow, LOW );
    digitalWrite( LED_Green, HIGH );
  }

  if (State_in1 == 0 ) {
    a = 1;
    if (State_in2 == 0 ) {
      if (a == 1) {
        if (count >= 9) {
          count = 9;
        }
        else {
          count++;
        }
        a = 0;
      }
    }
  }
  if (State_out1 == 0 ) {
    b = 1;
    if (State_out2 == 0) {
      if (b == 1) {
        if (count <= 0) {
          count = 0;
        }
        else {
          count--;
        }
        b = 0;
      }
    }
  }
  else {
    a = 0;
    b = 0;
  }

  /*

    if (State_in2 == 0 && a == 1) {

      if (count >= 9) {
        count = 9;
      }
      else
      {
        count = count + 1;
        delay(500);
      }
      a = 0;
    }
    else if (State_in2 == 0 && a == 0) {
      delay(1000);
    }

    if (State_out1 == 0) {
      b = 1;
    }
    if (State_out2 == 0 && b == 1) {

      if (count <= 0) {
        count = 0;
      }
      else
      {
        count = count - 1;
        delay(500);
      }
      b = 0;

    }
    else if (State_out2 == 0 && b == 0) {
      delay(1000);
    }
  */
  sevseg.setNumber(count);
  sevseg.refreshDisplay();

}//end of LOOP




void init_7sigment() {
  byte numDigits = 1;
  byte digitPins[] = {};
  byte segmentPins[] = {6, 5, 2, 3, 4, 7, 8, 9};
  bool resistorsOnSegments = true;

  byte hardwareConfig = COMMON_CATHODE;
  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments);
  sevseg.setBrightness(90);
}