#include <DS3232RTC.h>
#include <TimeLib.h>
#include <Wire.h>
#include <FastLED.h>
DS3232RTC RTC;
#define NUM_LEDS 86 // Number of LED controles (remember I have 3 leds / controler
#define COLOR_ORDER GRB  // Define color order for your strip
#define DATA_PIN 6  // Data pin for led comunication
#define analogInPin A0  // Analog input pin that the potentiometer is attached to
#define UPDATES_PER_SECOND 100
CRGB leds[NUM_LEDS]; // Define LEDs strip
byte digits[10][21] = { //2D Array for numbers on 7 segment
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0}, //0
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0}, //1
  {1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1}, //2
  {1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, //3
  {0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1}, //4
  {1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1}, //5
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1}, //6
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0}, //7
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, //8
  {1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, //9
};
unsigned long stopwatch = 0;
unsigned long swsecond = 0;
unsigned long swminute = 0;
bool Dot = true;  //Dot state
bool DST = false; //DST state
uint8_t rainbowhue = 0;
int outputValue = 0;
uint8_t vance = 0;
int i;

void setup() {
  Wire.begin();
  Serial.begin(115200);
  LEDS.addLeds<WS2811, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS); // Set LED strip type
  BrightnessCheck(); // Set initial brightness
  pinMode(2, INPUT_PULLUP); // Define DST adjust button pin
  pinMode(4, INPUT_PULLUP); // Define Minutes adjust button pin
  pinMode(5, INPUT_PULLUP); // Define Hours adjust button pin
  //startseq();
}

int GetTime() {
  tmElements_t Now;
  RTC.read(Now);
  int hour = Now.Hour;
  int minutes = Now.Minute;
  int second = Now.Second;
  if (second % 2 == 0) {
    Dot = false;
  }
  else {
    Dot = true;
  }
  return (hour * 100 + minutes);
}

void BrightnessCheck() {
  outputValue = analogRead(analogInPin);
  outputValue = map(outputValue, 0, 1023, 0, 255);
  LEDS.setBrightness(outputValue);
}

void TimeToArray() {
  int Now = GetTime();  // Get time
  int cursor = 86;
  if (DST) {  // if DST is true then add one hour
    Now += 100;
  }
  if (Dot) {
    leds[42] = ColorFromPalette( RainbowColors_p, vance);
    leds[43] = ColorFromPalette( RainbowColors_p, vance);
  }
  else {
    leds[42] = 0x000000;
    leds[43] = 0x000000;
  }
  for (int i = 1; i <= 4; i++) {
    int digit = Now % 10; // get last digit in time
    if (i == 1) {
      cursor = 65;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    else if (i == 2) {
      cursor = 44;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    else if (i == 3) {
      cursor = 21;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    else if (i == 4) {
      cursor = 0;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    Now /= 10;
  }
}

void DSTcheck() {
  int buttonDST = digitalRead(2);
  if (buttonDST == LOW) {
    if (DST) {
      DST = false;
    }
    else if (!DST) {
      DST = true;
    }
    delay(500);
  }
}

void TimeAdjust() {
  int buttonH = digitalRead(5);
  int buttonM = digitalRead(4);
  if (buttonH == LOW || buttonM == LOW) {
    delay(500);
    tmElements_t Now;
    RTC.read(Now);
    int hour = Now.Hour;
    int minutes = Now.Minute;
    int second = Now.Second;
    if (buttonH == LOW) {
      if (Now.Hour == 23) {
        Now.Hour = 0;
      }
      else {
        Now.Hour += 1;
      }
    } else {
      if (Now.Minute == 59) {
        Now.Minute = 0;
      }
      else {
        Now.Minute += 1;
      }
    }
    RTC.write(Now);
  }
}

void numColor() {
  EVERY_N_MILLISECONDS(200) {
    vance++;
  }
}


void startseq() {
  for (i = 0; i < NUM_LEDS; i++) {
    fill_rainbow(leds, i, rainbowhue, 5);
    FastLED.delay(25);
    leds[NUM_LEDS] = CRGB::Black;
    FastLED.delay(25);
  }
}
void loop() {

  BrightnessCheck(); // Check brightness
  // DSTcheck(); // Check DST
  // TimeAdjust(); // Check to se if time is geting modified
  // TimeToArray(); // Get leds array with required configuration
  numColor();
  // EVERY_N_MILLISECONDS(1000) {
  //   startseq();
  // }
  timerx();
  FastLED.show();
}


void timerx() {

  stopwatch = millis();
  swsecond = stopwatch / 1000;
  swminute = swsecond / 60;
  int Now = (swminute, swsecond);  // Get time

  int cursor = 86;
  int k;

  if (Dot) {
    leds[42] = ColorFromPalette( RainbowColors_p, vance);
    leds[43] = ColorFromPalette( RainbowColors_p, vance);
  }
  else {
    leds[42] = 0x000000;
    leds[43] = 0x000000;
  }
  for (int i = 1; i <= 4; i++) {
    int digit = Now % 10; // get last digit in time
    if (i == 1) {
      cursor = 65;
for (k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
            }    }
    else if (i == 2) {
      cursor = 44;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    else if (i == 3) {
      cursor = 21;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    else if (i == 4) {
      cursor = 0;
      for (int k = 0; k <= 20; k++) {
        if (digits[digit][k] == 1) {
          leds[cursor] = ColorFromPalette( RainbowColors_p, vance);
        }
        else if (digits[digit][k] == 0) {
          leds[cursor] = 0x000000;
        }
        cursor ++;
      }
    }
    Now /= 10;
  }
}