#include <TimerOne.h>

int a = 6;
int b = 7;
int c = 9;
int d = 10;
int e = 11;
int f = 5;
int g = 4;
int dp = 8;
int time = 0;
int pause_btn = 2;
int reset_btn = 3;

void setup() {
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(dp, OUTPUT);
  pinMode(pause_btn, INPUT);
  pinMode(reset_btn, INPUT);
  attachInterrupt(digitalPinToInterrupt(pause_btn), pause, RISING);
  Timer1.initialize(1000000); // Nastavení časovače na 1 sekundu (1 000 000 mikrosekund)
  Timer1.attachInterrupt(timerISR); // Připojení ISR k časovači
}

void loop() {
  if (time == 0) displayZero();
  if (time == 1) displayOne();
  if (time == 2) displayTwo();
  if (time == 3) displayThree();
  if (time == 4) displayFour();
  if (time == 5) displayFive();
  if (time == 6) displaySix();
  if (time == 7) displaySeven();
  if (time == 8) displayEight();
  if (time == 9) displayNine();
}

void pause() {
  while (!digitalRead(reset_btn)) {

  }
}

void timerISR() {
  time = (time + 1) % 10;
}

void clear() {
  //Serial.println(digitalRead(pause_btn));
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
  digitalWrite(dp, HIGH);
}

void displayZero() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  delay(100);
}

void displayOne() {
  clear();
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  delay(100);
}

void displayTwo() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(g, LOW);
  delay(100);
}

void displayThree() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(g, LOW);
  delay(100);
}

void displayFour() {
  clear();
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  delay(100);
}

void displayFive() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  delay(100);
}

void displaySix() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  delay(100);
}

void displaySeven() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  delay(100);
}

void displayEight() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  delay(100);
}

void displayNine() {
  clear();
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  delay(100);
}