#include <FastLED.h>
#define NUM_LEDS 60
#define LED_PIN 17
CRGB leds[NUM_LEDS];

#define BUTTON1_PIN 1
#define BUTTON2_PIN 18
#define BUTTON3_PIN 3
#define BUTTON4_PIN 5
#define BUTTON5_PIN 19

unsigned long countdownTime = 0;
unsigned long startTime = 0;

void setup() {
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  pinMode(BUTTON1_PIN, INPUT_PULLUP);
  pinMode(BUTTON2_PIN, INPUT_PULLUP);
  pinMode(BUTTON3_PIN, INPUT_PULLUP);
  pinMode(BUTTON4_PIN, INPUT_PULLUP);
  pinMode(BUTTON5_PIN, INPUT_PULLUP);
}

void loop() {
  if (millis() < 5000) {
    if (digitalRead(BUTTON1_PIN) == LOW) countdownTime += 3600;
    if (digitalRead(BUTTON2_PIN) == LOW) countdownTime += 600;
    if (digitalRead(BUTTON3_PIN) == LOW) countdownTime += 60;
    if (digitalRead(BUTTON4_PIN) == LOW) countdownTime += 10;
    if (digitalRead(BUTTON5_PIN) == LOW) countdownTime += 1;
    FastLED.showColor(CRGB::Green);
  } else {
    int ledToTurnOff = map(millis() - 5000, 0, countdownTime/60 * 1000 , 0, NUM_LEDS);
    for (int i = 0; i < NUM_LEDS; i++) {
      if (i < ledToTurnOff) {
        leds[i] = CRGB::Black;
      } else {
        leds[i] = CRGB::Red;
      }
    }
    FastLED.show();
  }
}