#include <FastLED.h>
#define buttonOldinga 4
#define buttonOrqaga 5
#define LED_PIN 13
#define NUM_LED 8
int button_pressed_count = 0;
int button_state = 0;
int button_stateorqa = 0;
int oldi_button_state = 0;
int orqa_button_state = 0;
long interval=500;
long previousMillis=0;

CRGB leds[NUM_LED];


void setup() {
 
  Serial.begin(9600);
  pinMode(buttonOldinga, INPUT_PULLUP);
  pinMode(buttonOrqaga, INPUT_PULLUP);
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LED);
  Serial.println("Button count");
}

void offAllLeds(){
  for(int i=0; i<8; i++){
    leds[i] = CRGB(0,0,0);
  }
}

void onLed(int led){
  for(int i=0; i<8; i++){
    if(led == i){ 
      leds[i] = CRGB::Green;
      }
  }
}


void loop() {

  button_state = digitalRead(buttonOldinga);
  button_stateorqa = digitalRead(buttonOrqaga);

  if(button_state != oldi_button_state){
    if(button_state == HIGH ){
      digitalWrite(13, LOW);
    }else{
      digitalWrite(13, HIGH);
      button_pressed_count++;
      Serial.println(button_pressed_count);
    }
    delay(50);
  }
  if(button_stateorqa != orqa_button_state){
    if(button_stateorqa == LOW){
    digitalWrite(13, HIGH);
    } else{
    digitalWrite(13, LOW);
    button_pressed_count--;
    }
    delay(50);
  }

  oldi_button_state = button_state;
  orqa_button_state = button_stateorqa;
  if(button_pressed_count%14==0){
    offAllLeds(); 
    }
    if(button_pressed_count%28==0){
      onLed(0);
    }else if(button_pressed_count%14==0){
      onLed(8);
    }

    if(int (button_pressed_count/14)%2==1){
      onLed(7-int((button_pressed_count%14)/2));
    }else{
      onLed(int((button_pressed_count%14)/2));
    }

    // if((buttonPin)==HIGH){
    //   button_pressed_count+=1;
    //   delay(500);
    // }
 
  if(button_pressed_count%2==1){
    unsigned long currentMillis=millis();
    if(currentMillis - previousMillis > interval){
      previousMillis=currentMillis;
      int curred_led;
      if(button_pressed_count%28>14){
        curred_led=7-int(button_pressed_count%14/2)-1;

      }else{
        curred_led=int(button_pressed_count%14/2)+1;
      }
      if(leds[curred_led]==HIGH || leds[curred_led]==LOW){
        leds[curred_led] = CRGB::Red;
      }else{
        leds[curred_led] = CRGB(0,0,0);
      }
    }
  }

    FastLED.show();
    // delay(100);
}