//code for a linear clock

//todo electrical scheme

#include <FastLED.h>

#define NUM_LEDS 12
#define DATA_PIN 4  // Change this to match your LED strip's data pin
#define BUTTON_PIN 2  // Change this to match your LED strip's data pin
#define BRIGHTNESS 25

CRGB leds[NUM_LEDS];
uint8_t pos = 0;
bool toggle = false;
int hour=17;
int minute=54;
int second=0;
void setup() {
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(BRIGHTNESS);

  Serial.begin(115200);
  pinMode(BUTTON_PIN, INPUT);

}

void loop() {

    int buttonState = digitalRead(BUTTON_PIN);
    uint8_t ledhour = (hour * NUM_LEDS) / 24;
    uint8_t ledmin =(minute * NUM_LEDS) / 60;
    uint8_t ledsec =(second * NUM_LEDS) / 60;
    for(uint8_t dot=0 ; dot< NUM_LEDS ; dot++) {
      if(buttonState == LOW ) {
        
        leds[dot].setRGB( 255*(ledhour==dot) ,
        255*(ledsec==dot)+ 64 * ( (ledsec-1) ==dot ) + 16 *((ledsec-2)==dot),
        255*(ledmin==dot));
        
      } else {
        leds[dot].setRGB(0,0,0);
      }
    }
  
   
    FastLED.show();

    //compute next time
    second++;
    if( second == 60 ) {
      second=0;
      minute++;
    } 
    if( minute ==60 ) {
      minute=0;
      hour = (hour++ ) % 24;
    }  
    delay(1000);
        

}