#include <Adafruit_NeoPixel.h>

#define LED_PIN     6
#define LED_COUNT   7
#define INPUT_PIN   8

// ======  KOLORY  ======
uint8_t colorA_R = 255;
uint8_t colorA_G = 0;
uint8_t colorA_B = 0;

uint8_t colorB_R = 0;
uint8_t colorB_G = 0;
uint8_t colorB_B = 255;
// ======================

Adafruit_NeoPixel strip(
    LED_COUNT,
    LED_PIN,
    NEO_GRB + NEO_KHZ800
);

bool lastState = LOW;

void setup()
{
    pinMode(INPUT_PIN, INPUT_PULLUP);

    strip.begin();
    setAll(colorA_R, colorA_G, colorA_B);
    lastState = LOW;
    strip.show();
}

void loop()
{
    bool pinState = digitalRead(INPUT_PIN);

    if (pinState != lastState)
    {
        if (pinState == LOW)
        {
            setAll(colorA_R, colorA_G, colorA_B);
        }
        else
        {
            setAll(colorB_R, colorB_G, colorB_B);
        }

        lastState = pinState;
    }

    delay(50);
}

void setAll(uint8_t r, uint8_t g, uint8_t b)
{
    for (uint8_t i = 0; i < LED_COUNT; i++)
    {
        strip.setPixelColor(i, strip.Color(r, g, b));
    }

    strip.show();
}