#include <avr/io.h>
#include "lcd.h"
#include <avr/interrupt.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

uint8_t stotinke = 0;
uint8_t sekunde = 0;
uint8_t minute = 0;
uint8_t sati = 0;
uint8_t state = 0;
char intStr[10];
char intStr2[10];

void time2data()
{

	sprintf(intStr, "%.2d:%.2d:%.2d", sati, minute, sekunde);
	lcd_clrscr();
	lcd_puts(intStr);
	lcd_gotoxy(0, 1);
	lcd_puts(intStr2);
}

ISR(TIMER0_COMP_vect)
{
	if(state == 0)
	{
		stotinke++;
		if(stotinke == 100)
		{
			sekunde++;
			stotinke = 0;
		}
		if(sekunde == 60)
		{
			minute++;
			sekunde = 0;
		}
		if(minute == 60)
		{
			sati++;
			minute = 0;
		}
		if(sati == 24)
		{
			sati = 0;
		}
		time2data();
	}
}

int main(void)
{
    DDRD = 0xff;
    DDRB = 0xf0;

    PORTB = 0x03;

    TCCR1A = _BV(COM1B1) | _BV(COM1B0) | _BV(WGM10);
    TCCR1B = _BV(WGM12) |  _BV(CS11);
    OCR1B = 200;

    lcd_init(LCD_DISP_ON);
    lcd_clrscr();

	TCCR0 = _BV(WGM01) | _BV(CS02) | _BV(CS00);
	OCR0 = 71;
	TIMSK = _BV(OCIE0);

	sei();

    while (1)
    {
		if(bit_is_clear(PINB, 0))
		{
			strcpy(intStr2, intStr);
		}
		if(bit_is_clear(PINB, 1))
		{
			if(state == 0)
			{
				state = 1;
			}
			else
			{
				state = 0;
			}
		}
    }
}