#include <TimeLib.h>
#include <LiquidCrystal.h>

int h;
int m;
int s;

int hours;
int minutes;
int seconds;


LiquidCrystal lcd(22, 23, 13, 12, 11, 10);

void PrintLCD(){
  lcd.setCursor(4, 0);

  if (h < 10){
    lcd.print("0");
  }
  lcd.print(h);
  lcd.print(":");
  if (m < 10){
    lcd.print("0");
  }
  lcd.print(m);
  lcd.print(":");
  if (s < 10){
    lcd.print("0");
  }
  lcd.print(s);

  lcd.setCursor(3, 1);
  lcd.print("H:");
  if (hours < 10){
    lcd.print("0");
  }
  lcd.print(hours);

  lcd.setCursor(9, 1);
  lcd.print("M:");
  if (minutes < 10){
    lcd.print("0");
  }
  lcd.print(minutes);
}

void setup() {
  /* Buttons */
  pinMode(51, INPUT); /* SET CLOCK */
  
  pinMode(43, INPUT); /* HOURS UP */
  pinMode(45, INPUT); /* HOURS DOWN */
  
  pinMode(36, INPUT); /* MINUTES UP */
  pinMode(38, INPUT); /* MINUTES DOWN */

  /* Liquid Crystal */
  lcd.begin(16, 2);

  /* ROW 01 */
  pinMode(2, OUTPUT); /* E */
  pinMode(3, OUTPUT); /* eS */
  pinMode(4, OUTPUT); /* sON */
  pinMode(5, OUTPUT); /* LA */
  pinMode(6, OUTPUT); /* laS */
  pinMode(7, OUTPUT); /* UNA */

  /* ROW 02 */
  pinMode(8, OUTPUT); /* DOS */
  pinMode(9, OUTPUT); /* TRES */

  /* ROW 03 */
  pinMode(27, OUTPUT); /* CUATRO */
  pinMode(29, OUTPUT); /* CINCO */

  /* ROW 04 */
  pinMode(31, OUTPUT); /* SEIS */
  pinMode(33, OUTPUT); /* SIETE */

  /* ROW 05 */
  pinMode(35, OUTPUT); /* OCHO */
  pinMode(37, OUTPUT); /* NUEVE */

  /* ROW 06 */
  pinMode(39, OUTPUT); /* DIEZ */
  pinMode(41, OUTPUT); /* ONCE */

  /* ROW 07 */
  pinMode(30, OUTPUT); /* DOCE */
  pinMode(32, OUTPUT); /* Y */
  pinMode(34, OUTPUT); /* MENOS */

  /* ROW 08 */
  pinMode(42, OUTPUT); /* VEINTE */
  pinMode(44, OUTPUT); /* DIEZ */

  /* ROW 09 */
  pinMode(46, OUTPUT); /* VEINTIC */
  pinMode(48, OUTPUT); /* CINCO */

  /* ROW 10 */
  pinMode(50, OUTPUT); /* MEDIA */
  pinMode(52, OUTPUT); /* CUARTO */

  setTime(0,0,0, 1,1,1970);
}

void loop() {
  /* Buttons */
  if (digitalRead(43) == HIGH){
    if (hours < 12){
      hours++;
    }
  }
  if (digitalRead(45) == HIGH){
    if (hours > 0){
      hours--;
    }
  }

  if (digitalRead(36) == HIGH){
    if (minutes < 60){
      minutes++;
    }
  }

  if (digitalRead(38) == HIGH){
    if (minutes > 0){
      minutes--;
    }
  }

  if (digitalRead(51) == HIGH){
    setTime(hours,minutes,0, 1,1,1970);
  }

 /* Cleaning ... */
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(27, LOW);
  digitalWrite(29, LOW);
  digitalWrite(31, LOW);
  digitalWrite(33, LOW);
  digitalWrite(35, LOW);
  digitalWrite(37, LOW);
  digitalWrite(39, LOW);
  digitalWrite(41, LOW);
  digitalWrite(30, LOW);
  digitalWrite(32, LOW);
  digitalWrite(34, LOW);
  digitalWrite(42, LOW);
  digitalWrite(44, LOW);
  digitalWrite(46, LOW);
  digitalWrite(48, LOW);
  digitalWrite(50, LOW);
  digitalWrite(52, LOW);

  /* Time */
  h = hour();
  m = minute();
  s = second();

  PrintLCD();


  /* Hours */
  if (h == 0 || h == 12){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(30, HIGH); /* DOCE */
  }
  else if (h == 1 || h == 13){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(7, HIGH); /* UNA */
  }
  else if (h == 2 || h == 14){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(8, HIGH); /* DOS */
  }
  else if (h == 3 || h == 15){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(9, HIGH); /* TRES */
  }
  else if (h == 4 || h == 16){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(27, HIGH); /* CUATRO */
  }
  else if (h == 5 || h == 17){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(29, HIGH); /* CINCO */
  }
  else if (h == 6 || h == 18){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(31, HIGH); /* SEIS */
  }
  else if (h == 7 || h == 19){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(33, HIGH); /* SIETE */
  }
  else if (h == 8 || h == 20){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(35, HIGH); /* OCHO */
  }
  else if (h == 9 || h == 21){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(35, HIGH); /* OCHO */
  }
  else if (h == 10 || h == 22){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(37, HIGH); /* OCHO */
  }
  else if (h == 11 || h == 23){
    digitalWrite(5, HIGH); /* LA */
    digitalWrite(6, HIGH); /* laS */
    digitalWrite(39, HIGH); /* OCHO */
  }

  /* Minutes */
  if (m >= 5 && m < 10){
    digitalWrite(32, HIGH); /* Y */
    digitalWrite(48, HIGH); /* CINCO */
  }
  else if (m >= 10 && m < 15){
    digitalWrite(32, HIGH); /* Y */
    digitalWrite(44, HIGH); /* DIEZ */
  }
  else if (m >= 15 && m < 20){
    digitalWrite(32, HIGH); /* Y */
    digitalWrite(52, HIGH); /* CUARTO */
  }
  else if (m >= 20 && m < 25){
    digitalWrite(32, HIGH); /* Y */
    digitalWrite(42, HIGH); /* VEINTE */
  }
  else if (m >= 25 && m < 30){
    digitalWrite(32, HIGH); /* Y */
    digitalWrite(46, HIGH); /* VEINTI */
    digitalWrite(48, HIGH); /* CINCO */
  }
  else if (m >= 30 && m < 35){
    digitalWrite(32, HIGH); /* Y */
    digitalWrite(50, HIGH); /* MEDIA */
  }
  else if (m >= 35 && m < 40){
    digitalWrite(34, HIGH); /* MENOS */
    digitalWrite(46, HIGH); /* VEINTI */
    digitalWrite(48, HIGH); /* CINCO */
  }
  else if (m >= 40 && m < 45){
    digitalWrite(34, HIGH); /* MENOS */
    digitalWrite(42, HIGH); /* VEINTE */
  }
  else if (m >= 45 && m < 50){
    digitalWrite(34, HIGH); /* MENOS */
    digitalWrite(52, HIGH); /* CUARTO */
  }
  else if (m >= 50 && m < 55){
    digitalWrite(34, HIGH); /* MENOS */
    digitalWrite(44, HIGH); /* DIEZ */
  }
  else if (m >= 55 && m < 60){
    digitalWrite(34, HIGH); /* MENOS */
    digitalWrite(48, HIGH); /* CINCO */
  }

  delay(40);

}