#include <SegmentDisplay_CD4511B.h>
#include <Pushbutton.h>

int x,y,z;
int digit[10][7] = {
    {1,1,1,1,1,1,0}, //0
    {0,1,1,0,0,0,0}, //1
    {1,1,0,1,1,0,1}, //2
    {1,1,1,1,0,0,1}, //3
    {0,1,1,0,0,1,1}, //4
    {1,0,1,1,0,1,1}, //5
    {1,0,1,1,1,1,1}, //6
    {1,1,1,0,0,1,0}, //7
    {1,1,1,1,1,1,1}, //8
    {1,1,1,1,0,1,1}  //9
};

const int buttonPin = 9; //push button attached to this pin
const int buttonPin2 = 10;

int buttonState = LOW; //this variable tracks the state of the button, low if not pressed, high if pressed
int buttonState2 = LOW;
int lastButtonState = LOW;
int currentCount = 0;
int maxCount = 9;
int minCount = 0;
// int ledState = -1; //this variable tracks the state of the LED, negative if off, positive if on

long lastDebounceTime = 0;  // the last time the output pin was toggled
long debounceDelay = 50; 


void setup() {
  //Setting pin 2-8 as OUTPUT
  for(x=2;x<=8;x++){
    pinMode(x,OUTPUT);
  }
  pinMode(buttonPin, INPUT);
  pinMode(buttonPin2, INPUT);
  pinMode(button_start, INPUT);
  digitalWrite(button_start, HIGH);
  Serial.begin(9600);
  
}

int debounce(int last, int button_port) 
{
  
    int current = digitalRead(button_port);

    if (last != current) 
    {

        delay(10);

        current = digitalRead(button_port);
    }

    return current;
}

void loop() {
  // buttonState = digitalRead(PushButton1);
  //sample the state of the button - is it pressed or not?
  buttonState = digitalRead(buttonPin);
  buttonState2 = digitalRead(buttonPin2);

  // Loop y will continue for count 0 to 9
  if(buttonState != lastButtonState) {
    if ( (buttonState == HIGH) && (buttonState2 == LOW) ) {
      currentCount = max(minCount, currentCount);
      Serial.print(buttonState);
      // lastButtonState = buttonState;
      for(y=currentCount; y<=9; y++){
        // Loop z will continue for 7 segment display high or low
        for(z=0; z<=6; z++){
          digitalWrite(z+2,digit[y][z]);
        }
        delay(1000);
        buttonState = digitalRead(buttonPin);
        Serial.print("second");
        Serial.print(buttonState);
        if(buttonState != lastButtonState && (buttonState == LOW || buttonState2 == HIGH)) {
          if(y == maxCount) {
            currentCount = 0;
          }
          else{
            currentCount = y;
          }
          
          Serial.print(currentCount);
          break;
        }
        lastButtonState = buttonState;
      }
      lastDebounceTime = millis();
    }
  }
  
  lastButtonState = buttonState;

  if(buttonState2 != lastButtonState) {
    if ( (buttonState == LOW) && (buttonState2 == HIGH) ) {
      for(y=9; y>=0; y--){
        // Loop z will continue for 7 segment display high or low
        for(z=6; z>=0; z--){
          digitalWrite(z+2,digit[y][z]);
        }
        delay(1000);
      }
      lastDebounceTime = millis();
    }
  }
  
}