#include <FastLED.h>
#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 RTC;

//replace this value with the number of LEDS on your strip
#define NUM_LEDS 60
#define DATA_PIN 3
#define CLOCK_PIN 13

//Define colors for hours, minutes and seconds.
//you can also define custom RGB colors like this: CRGB( 255, 255, 255);
#define hourColor CRGB::Blue;
#define minuteColor CRGB::Green;
#define secondColor CRGB::Red;

//Define overlapping colors
#define HMoverlap CRGB::Cyan;
#define MSoverlap CRGB::Yellow;
#define SHoverlap CRGB::Purple;

unsigned long actTime = 0;
unsigned long remTime = 0;
const unsigned long period = 500;
bool blinkState = false;
bool menuTriggered = false;
bool toggleSeconds = true;
int BRIGHTNESS = 51;
const int menuButton = 8;
const int upButton = 6;
const int downButton = 4;
boolean buttonPrev = false;
boolean buttonPrev2 = false;
boolean buttonPrev3 = false;

int menuState = 0;
// Define the array of leds
CRGB leds[NUM_LEDS];
int periodic[NUM_LEDS] {0,58,59,57,56,55,54,53,52,51,50,42,43,44,45,46,47,48,49,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,5,4,3,2,1};

void setup() { 
  Serial.begin(9600);
  Wire.begin();
  RTC.begin();
    //uncomment the following line when you first upload the code to set the time
    //RTC.adjust(DateTime(__DATE__, __TIME__));
    //you an also use the following line to set a custom time
    //RTC.adjust(DateTime(2022, 2, 24, 14, 20, 0));
  pinMode(menuButton, INPUT);
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);  // GRB ordering is typical
  FastLED.setBrightness(BRIGHTNESS);
}

void loop() { 

   menuButtonState();

   if(menuState==0){
    if((digitalRead(upButton) && buttonPrev2)){
      if(toggleSeconds){
      toggleSeconds=false;
      }else{toggleSeconds=true;}
      Serial.println(toggleSeconds);
      }
      buttonPrev2 = !digitalRead(upButton);
//increase brightness in increments
    if((digitalRead(downButton) && buttonPrev3)){
      if (BRIGHTNESS <255){
        BRIGHTNESS = BRIGHTNESS + 51;
        }else{
          BRIGHTNESS = 51;
          }
FastLED.setBrightness(BRIGHTNESS);
Serial.print("Brightness set to: ");
Serial.println(BRIGHTNESS);
      }      
    buttonPrev3 = !digitalRead(downButton);
    FastLED.clear();
    
    showTime();
    }else if(menuState==1){
    setMinute();
      }else if(menuState==2){
    setHour();
      }
}

void showTime(){
  unsigned long currentMillis = millis();
      DateTime now = RTC.now();
   if((now.second()==now.minute()) && toggleSeconds){
  leds[periodic[now.second()]] = MSoverlap;
  leds[periodic[now.hour()]] = hourColor;
  }else if((now.second()==now.hour()) && toggleSeconds){
  leds[periodic[now.second()]] = SHoverlap;
  leds[periodic[now.minute()]] = minuteColor;
  }else if(now.minute()==now.hour()){
  if(toggleSeconds){leds[periodic[now.second()]] = secondColor;}
  leds[periodic[now.minute()]] = HMoverlap
  }else{
  if(toggleSeconds){leds[periodic[now.second()]] = secondColor;}
  leds[periodic[now.minute()]] = minuteColor;
  leds[periodic[now.hour()]] = hourColor;
      }
  FastLED.show();
    leds[periodic[now.second()]] = CRGB::Black;
  leds[periodic[now.minute()]] = CRGB::Black;
  leds[periodic[now.hour()]] = CRGB::Black;
  }

void menuButtonState() {
  if(digitalRead(menuButton) && buttonPrev){
    menuTriggered = false;
    if(menuState<2){
    menuState = menuState + 1;
    }else{
    menuState = 0;
      }
       Serial.println(menuState);
    }
    buttonPrev = !digitalRead(menuButton);
    
  }

  void setMinute() {

//    FastLED.clear();
    actTime = millis();
    DateTime now = RTC.now();
    RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute(), 1));

    if(digitalRead(upButton) && buttonPrev2){
      leds[periodic[now.minute()]] = CRGB::Black;
    RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute()+1, now.second()));
    }else if(digitalRead(downButton) && buttonPrev3){
      leds[periodic[now.minute()]] = CRGB::Black;
    RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute()-1, now.second()));
      }
    buttonPrev2 = !digitalRead(upButton);
    buttonPrev3 = !digitalRead(downButton);

if (actTime - remTime >= period){
    remTime = actTime;
    if(!blinkState) {
        blinkState = true;
      Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println(); 
   if(now.second()==now.minute()){
  leds[periodic[now.second()]] = MSoverlap;
  leds[periodic[now.hour()]] = hourColor;
  }else if(now.second()==now.hour()){
  leds[periodic[now.second()]] = SHoverlap;
  leds[periodic[now.minute()]] = minuteColor;
  }else if(now.minute()==now.hour()){
  leds[periodic[now.second()]] = secondColor;
  leds[periodic[now.minute()]] = HMoverlap;
  }else{
  leds[periodic[now.second()]] = secondColor;
  leds[periodic[now.minute()]] = minuteColor;
  leds[periodic[now.hour()]] = hourColor;
      }
      FastLED.show();

    } else {
        blinkState = false;
        
        leds[periodic[now.minute()]] = CRGB::Black;

        FastLED.show();
//        leds[periodic[now.hour()]] = CRGB::Black;
//        leds[periodic[now.second()]] = CRGB::Black;
        

    }
  }


          if(!menuTriggered){
          Serial.println("menu triggered!!");
      FastLED.clear();
      menuTriggered = true;
      }
  }

  void setHour() {

//    FastLED.clear();
    actTime = millis();
    DateTime now = RTC.now();
    RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour(), now.minute(), 1));
        if(!menuTriggered){
          Serial.println("menu triggered!!");
      FastLED.clear();
      menuTriggered = true;
      }
    if(digitalRead(upButton) && buttonPrev2){
      leds[periodic[now.hour()]] = CRGB::Black;
    RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour()+1, now.minute(), now.second()));
    }else if(digitalRead(downButton) && buttonPrev3){
      leds[periodic[now.hour()]] = CRGB::Black;
    RTC.adjust(DateTime(now.year(), now.month(), now.day(), now.hour()-1, now.minute(), now.second()));
      }
    buttonPrev2 = !digitalRead(upButton);
    buttonPrev3 = !digitalRead(downButton);

if (actTime - remTime >= period){
    remTime = actTime;
    if(!blinkState) {
        blinkState = true;
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println(); 
   if(now.second()==now.minute()){
  leds[periodic[now.second()]] = MSoverlap;
  leds[periodic[now.hour()]] = hourColor;
  }else if(now.second()==now.hour()){
  leds[periodic[now.second()]] = SHoverlap;
  leds[periodic[now.minute()]] = minuteColor;
  }else if(now.minute()==now.hour()){
  leds[periodic[now.second()]] = secondColor;
  leds[periodic[now.minute()]] = HMoverlap;
  }else{
  leds[periodic[now.second()]] = secondColor;
  leds[periodic[now.minute()]] = minuteColor;
  leds[periodic[now.hour()]] = hourColor;
      }
      FastLED.show();

    } else {
        blinkState = false;
        
        leds[periodic[now.hour()]] = CRGB::Black;

        FastLED.show();
//        leds[periodic[now.hour()]] = CRGB::Black;
//        leds[periodic[now.second()]] = CRGB::Black;
        

    }
  }


  
  }

  void increaseBrightness(){
    
    }