#include <Arduino.h>
#include"Segment.h"
#include"ShiftReg.h"

#define LATCH 5
#define DATA 4
#define CLOCK 6
#define ARRAY_SIZE_DECIMAL 10

#define BUTTON1 0
#define BUTTON2 1

volatile byte oldPortValue = 0x00;

byte digits[ARRAY_SIZE_DECIMAL] = {0xFC, 0x60, 0xDA, 0xF2, 0x66, 0xB6, 0xBE, 0xE0, 0xFE, 0xF6 }; 



int main()
{
  #ifdef __DEBUG__
    dbg_start();
  #endif

	DDRB &= ~(1<<BUTTON1);
  DDRB &= ~(1<<BUTTON2);
	PORTB |= (1 << BUTTON1) | (1<<BUTTON2); //pull up enabled
 
  init_shift(DATA,CLOCK,LATCH);

  PCICR |= (1<<PCIE0); // set PCIE2 to enable PCMSK2
  PCMSK0 |= (1<<PCINT0) | (1<<PCINT1); // enable interrupt for PCINT22 and 23
  sei();


  while(1)
  {
  }
}

ISR(PCINT0_vect)
{
    byte changeBits;
    byte currentPortValue = PINB;

    changeBits = currentPortValue ^ oldPortValue;
    oldPortValue = currentPortValue;

    //PCINT22 changed
    if(changeBits & (1<<BUTTON1))
    {
      //toggle the LED
      displyValue(0xFC);
    }

    //PCINT23 changed
    if(changeBits & (1<<BUTTON2))
    {
      //toggle the LED
      displyValue(0x60);
    }
}