#include "SevSeg.h"
SevSeg sevseg; //Instantiate a seven segment controller object

void setup() {
  byte numDigits = 4;
  byte digitPins[] = {2, 3, 4, 5};
  byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
  bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
  byte hardwareConfig = COMMON_ANODE; // See README.md for options
  bool updateWithDelays = false; // Default 'false' is Recommended
  bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
  bool disableDecPoint = false; // Use 'true' if your decimal point doesn't exist or isn't connected

  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
  updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
  pinMode(A5, INPUT_PULLUP);
  pinMode(A4, INPUT_PULLUP);
  pinMode(A3, INPUT_PULLUP);
  sevseg.setNumber(0, 0);
  sevseg.refreshDisplay();
}

void loop() {
  static unsigned long timer = millis(),ssetdown=0, sadddown=0, ssubdown=0;
  static int deciSeconds = 0;


  if (millis() - timer >= 100) {
    timer += 100;
    // deciSeconds++; // 100 milliSeconds is equal to 1 deciSecond

    // if (deciSeconds == 10000) { // Reset to 0 after counting for 1000 seconds.
    //   deciSeconds=0;
    // }
    sevseg.setNumber(deciSeconds);
  }
  int sadd = digitalRead(A5);
  int ssub = digitalRead(A4);
  int sset = digitalRead(A3);
  

  if (sset == 0 && ssetdown==0) {
    deciSeconds = 9999;
    ssetdown = millis();
    sevseg.setNumber(deciSeconds);
  }

  if (sset == 1 ) {
    if (millis() - ssetdown >= 20)
      ssetdown = 0;
  }

  if (sadd == 0 && sadddown==0) {
    deciSeconds++;
    if (deciSeconds > 9999) deciSeconds =0;
    sadddown = = millis();
    sevseg.setNumber(deciSeconds);
  }

  if (sadd == 1) {
    if (millis() - sadddown >= 20)
      sadddown = 0;
  }

  if (ssub == 0 && ssubdown==0) {
    if (deciSeconds>0) deciSeconds--;
    ssubdown = = millis();
    sevseg.setNumber(deciSeconds);
  }

  if (ssub== 1 ) {
    if (millis() - ssubdown >= 20)
      ssubdown = 0;
  }

  sevseg.refreshDisplay(); // Must run repeatedly
}

/// END ///