#include <Adafruit_NeoPixel.h>
#include <Wire.h>
#include "RTClib.h"

// RTC-Instanz
RTC_DS1307 rtc;

// Pin- und LED-Konfiguration
#define PIN_H5    5
#define NUM_H5    4

#define PIN_H1    6
#define NUM_H1    4

#define PIN_M5    3
#define NUM_M5   11

#define PIN_M1    4
#define NUM_M1    4

// NeoPixel-Objekte
Adafruit_NeoPixel stripH5(NUM_H5, PIN_H5, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel stripH1(NUM_H1, PIN_H1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel stripM5(NUM_M5, PIN_M5, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel stripM1(NUM_M1, PIN_M1, NEO_GRB + NEO_KHZ800);

void setup() {
  Serial.begin(9600);
  Wire.begin();
  rtc.begin();

  stripH5.begin(); stripH5.setBrightness(127); stripH5.show();
  stripH1.begin(); stripH1.setBrightness(127); stripH1.show();
  stripM5.begin(); stripM5.setBrightness(127); stripM5.show();
  stripM1.begin(); stripM1.setBrightness(127); stripM1.show();
}

void loop() {
  // 1) Zeit auslesen
  DateTime now     = rtc.now();
  byte     hours   = now.hour();   // 0–23
  byte     minutes = now.minute(); // 0–59

  // 1a) Zeit per Serial ausgeben
  Serial.print("Aktuelle Zeit: ");
  if (hours < 10) Serial.print('0');
  Serial.print(hours);
  Serial.print(':');
  if (minutes < 10) Serial.print('0');
  Serial.println(minutes);

  // 2) Blöcke berechnen
  byte h5 = hours / 5;
  byte h1 = hours % 5;
  byte m5 = minutes / 5;
  byte m1 = minutes % 5;

  // 3) LEDs setzen (umgekehrte Reihenfolge)

  // Zeile H5 (4 LEDs, rot)
  for (byte i = 0; i < NUM_H5; i++) {
    byte idx = NUM_H5 - 1 - i;
    if (i < h5) {
      stripH5.setPixelColor(idx, stripH5.Color(255,0,0));
    } else {
      stripH5.setPixelColor(idx, 0);
    }
  }
  stripH5.show();

  // Zeile H1 (4 LEDs, rot)
  for (byte i = 0; i < NUM_H1; i++) {
    byte idx = NUM_H1 - 1 - i;
    if (i < h1) {
      stripH1.setPixelColor(idx, stripH1.Color(255,0,0));
    } else {
      stripH1.setPixelColor(idx, 0);
    }
  }
  stripH1.show();

  // Zeile M5 (11 LEDs, gelb; 3.,6.,9. rot)
  for (byte j = 0; j < NUM_M5; j++) {
    byte idx = NUM_M5 - 1 - j;
    if (j < m5) {
      if (j == 2 || j == 5 || j == 8) {
        stripM5.setPixelColor(idx, stripM5.Color(255,0,0));
      } else {
        stripM5.setPixelColor(idx, stripM5.Color(255,255,0));
      }
    } else {
      stripM5.setPixelColor(idx, 0);
    }
  }
  stripM5.show();

  // Zeile M1 (4 LEDs, gelb)
  for (byte i = 0; i < NUM_M1; i++) {
    byte idx = NUM_M1 - 1 - i;
    if (i < m1) {
      stripM1.setPixelColor(idx, stripM1.Color(255,255,0));
    } else {
      stripM1.setPixelColor(idx, 0);
    }
  }
  stripM1.show();

  delay(20000);
}