// Date and time functions using a DS1307 RTC connected via I2C and Wire lib

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

#define pinhap 6
#define pindean 7
#define pinshel 8
RTC_DS1307 RTC;

int led = 13;
int wait = 1;

Adafruit_NeoPixel strip_h = Adafruit_NeoPixel(13, pinhap, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip_d = Adafruit_NeoPixel(4, pindean, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip_s = Adafruit_NeoPixel(7, pinshel, NEO_GRB + NEO_KHZ800);

void setup () {
  strip_h.begin();
  strip_d.begin();
  strip_s.begin();
  strip_h.show();
  strip_d.show();
  strip_s.show();
  Serial.begin(57600);
  Wire.begin();
  RTC.begin();
  pinMode(led, OUTPUT);

  //int sec;


  if (! RTC.isrunning()) {
    Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
    RTC.adjust(DateTime(__DATE__, __TIME__));
  }

}

void loop () {
  int sec;
  DateTime now = RTC.now();

  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(' ');
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second(), DEC);
  Serial.println();

  Serial.print(" since 1970 = ");
  Serial.print(now.unixtime());
  Serial.print("s = ");
  Serial.print(now.unixtime() / 86400L);
  Serial.println("d");

  // calculate a date which is 7 days and 30 seconds into the future
  DateTime future (now.unixtime() + 0 * 86400L + 30);
  sec = (now.second(), DEC);
  Serial.print(" now + 7d + 30s: ");
  Serial.print(future.year(), DEC);
  Serial.print('/');
  Serial.print(future.month(), DEC);
  Serial.print('/');
  Serial.print(future.day(), DEC);
  Serial.print(' ');
  Serial.print(future.hour(), DEC);
  Serial.print(':');
  Serial.print(future.minute(), DEC);
  Serial.print(':');
  Serial.print(future.second(), DEC);
  Serial.println();
  if (now.minute() >= 21 && (now.minute() <= 22)) {

    rainbowCycle(20);
    digitalWrite(led, HIGH);
  }
  else {
    strip_h.Color(0, 0, 0);
    digitalWrite(led, LOW );
  }
  Serial.print(now.minute(), DEC);
  Serial.print(sec);
  Serial.println(sec);
  Serial.println();
  delay(3000);
}

//rainbowCycle(20);
//colorWipe(strip.Color(205, 155, 100), 10);
//strip.Color(205, 155, 100);
//}
//}
//}

void colorWipe(uint32_t c, uint8_t wait) {
  for (uint16_t i = 0; i < strip_h.numPixels(); i++) {
    strip_h.setPixelColor(i, c);
    strip_h.show();
    delay(wait);
  }
}



void rainbow(uint8_t wait) {
  uint16_t i, j;

  for (j = 0; j < 256; j++) {
    for (i = 0; i < strip_h.numPixels(); i++) {
      strip_h.setPixelColor(i, Wheel((i + j) & 255));
    }
    strip_h.show();
    delay(wait);
  }
}
// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {
  uint16_t i, j;

  for (j = 0; j < 256 * 1; j++) { // 5 cycles of all colors on wheel
    for (i = 0; i < strip_h.numPixels(); i++) {
      strip_h.setPixelColor(i, Wheel(((i * 50 / strip_h.numPixels()) + j) & 255));
      delayMicroseconds(150);
    }

    strip_h.show();

  }

  // delay(150);
  delay(wait);
}

// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
  if (WheelPos < 85) {
    return strip_h.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
  }
  else if (WheelPos < 170) {
    WheelPos -= 85;
    return strip_h.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  }
  else {
    WheelPos -= 170;
    return strip_h.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
}