// INCLUDES
#include <DallasTemperature.h>
#include <OneWire.h>
#define ONE_WIRE_BUS 5
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

#include <SoftwareSerial.h>
#include <TinyGPS.h>
#include <SPI.h>
#include "TPIC6B595.h"
#include <TimeLib.h>
#define RXPIN 4
#define TXPIN 3
#define GPSBAUD 9600

TinyGPS gps;
SoftwareSerial uart_gps(RXPIN, TXPIN);

//Pin Assignments (You should change these)
const int clockPin       = 9;           //Connected to TPIC pin 13: SRCLK (aka Clock)
const int latchPin     = 10;          //Connected to TPIC pin 12: RCLK (aka Latch/load/CS/SS...)
const int dataPin      = 12;          //Connected to TPIC pin 3: SER (aka MOSI)

byte IC1[] = {
  B11111100,
  B01100000,
  B11011010,
  B11110010,
  B01100110,
  B10110110,
  B10111110,
  B11100000,
  B11111110,
  B11110110
};



// VARIABLES
int seconds;
int timeoffset = +3; // User must change the one to an appropiate number. I am one hour after GMT.
int temps;
void setup()
{
  sensors.begin();

  uart_gps.begin(GPSBAUD);  // Start the GPS receiver UART
  pinMode(clockPin, OUTPUT);
  pinMode(latchPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  delay(1000);
  Serial.begin(9600);
}


void loop()
{

  if (uart_gps.available())
  {
    int c = uart_gps.read();
    if (gps.encode(c))
    {
      getgps(gps);
    }
  }
  else
  {
    temp();
  }
}


void getgps(TinyGPS &gps)
//void loop()
{
  int year;
  float latitude, longitude;
  byte month, day, hour, minute, second, hundredths;
  int deschas, edchas, chas1, chas2;
  int desmin, edmin, minut1, minut2;
  // gps.f_get_position(&latitude, &longitude);
  gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths);
  //hour = 15;
  hour = hour + timeoffset;
  chas1 = hour % 10;
  chas2 = hour / 10;
  edchas = IC1[chas1];
  deschas = IC1[chas2];

  //minute = 32;
  minut1 = minute % 10;
  minut2 = minute / 10;
  edmin = IC1[minut1];
  desmin = IC1[minut2];


  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, edmin);
  shiftOut(dataPin, clockPin, LSBFIRST, desmin);
  shiftOut(dataPin, clockPin, LSBFIRST, edchas);
  shiftOut(dataPin, clockPin, LSBFIRST, deschas);
  digitalWrite(latchPin, HIGH);
  Serial.print("hour = ");
  Serial.println(hour);
  Serial.print("min = ");
  Serial.println(minute);
  delay(5000);

  int temp, destemp, edtemp, temp1, temp2;
  sensors.requestTemperatures(); // Send the command to get temperatures
  temp = sensors.getTempCByIndex(0);
  // temp = -5;
  if (temp < 0) {
    temp = abs(temp);
    temp1 = temp % 10;
    temp2 = temp / 10;
    edtemp = IC1[temp1];
    destemp = IC1[temp2];
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, LSBFIRST, B11000110);
    shiftOut(dataPin, clockPin, LSBFIRST, edtemp);
    shiftOut(dataPin, clockPin, LSBFIRST, destemp);
    shiftOut(dataPin, clockPin, LSBFIRST, B00000010);
    digitalWrite(latchPin, HIGH);
  }
  else {
    temp1 = temp % 10;
    temp2 = temp / 10;
    edtemp = IC1[temp1];
    destemp = IC1[temp2];
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, LSBFIRST, B10011100);
    shiftOut(dataPin, clockPin, LSBFIRST, B11000110);
    shiftOut(dataPin, clockPin, LSBFIRST, edtemp);
    shiftOut(dataPin, clockPin, LSBFIRST, destemp);
    digitalWrite(latchPin, HIGH);
  }
  Serial.print( " temp = ");
  Serial.println(temp);
  delay(5000);
}


void temp()
{

  int temp, destemp, edtemp, temp1, temp2;
  sensors.requestTemperatures(); // Send the command to get temperatures
  temp = sensors.getTempCByIndex(0);
  // temp = -5;
  if (temp < 0) {
    temp = abs(temp);
    temp1 = temp % 10;
    temp2 = temp / 10;
    edtemp = IC1[temp1];
    destemp = IC1[temp2];
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, LSBFIRST, B11000110);
    shiftOut(dataPin, clockPin, LSBFIRST, edtemp);
    shiftOut(dataPin, clockPin, LSBFIRST, destemp);
    shiftOut(dataPin, clockPin, LSBFIRST, B00000010);
    digitalWrite(latchPin, HIGH);
  }
  else {
    temp1 = temp % 10;
    temp2 = temp / 10;
    edtemp = IC1[temp1];
    destemp = IC1[temp2];
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, LSBFIRST, B10011100);
    shiftOut(dataPin, clockPin, LSBFIRST, B11000110);
    shiftOut(dataPin, clockPin, LSBFIRST, edtemp);
    shiftOut(dataPin, clockPin, LSBFIRST, destemp);
    digitalWrite(latchPin, HIGH);
  }

  Serial.println( " no gps ");
  Serial.print(" temp = ");
  Serial.println(temp);
  delay(2000);
}