#define _XTAL_FREQ 8000000

#define RS RD2
#define EN RD3
#define D4 RD4
#define D5 RD5
#define D6 RD6
#define D7 RD7

#include <xc.h>
#include "lcd.h";
#include <stdio.h>

// BEGIN CONFIG
#pragma config FOSC = HS // Oscillator Selection bits (HS oscillator)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT enabled)
#pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled)
#pragma config BOREN = ON // Brown-out Reset Enable bit (BOR enabled)
#pragma config LVP = OFF // Low-Voltage (Single-Supply) In-Circuit Serial Programming Enable bit (RB3 is digital I/O, HV on MCLR must be used for programming)
#pragma config CPD = OFF // Data EEPROM Memory Code Protection bit (Data EEPROM code protection off)
#pragma config WRT = OFF // Flash Program Memory Write Enable bits (Write protection off; all program memory may be written to by EECON control)
#pragma config CP = OFF // Flash Program Memory Code Protection bit (Code protection off)
//END CONFIG



char* plants[] = {//?????? ???????? ????????
"Ogurec",
"Yabloko",
"Apel'sin",
"Pomidor",
"Morkov'",
};
const int N_PLANTS = 5;
int plantsTime = {48};
int FlagTextChanged = 0;

int activeItem = 0;//???????? ????: ?????????????? ?? ??????
char num[3];

int plantsItems[5] = {0,3,0,0,0};//????????? ???????? ??? ??????? ????

void updateItem() {
Lcd_Clear();
Lcd_Set_Cursor(1, 1);
sprintf(num , "%d%c", activeItem + 1, '.');
Lcd_Write_String(num);

Lcd_Set_Cursor(1, 3);
Lcd_Write_String(plants[plantsItems[activeItem]]);
FlagTextChanged = 1;
}

void interrupt isr() {
if (INTF) {
INTF = 0; // reset interrupt flag/
updateItem();
}
if (RBIF || RBIE) {
if (RB6) {//????????????? ???????? ? ?????
plantsItems[activeItem] = (plantsItems[activeItem] + 1) % N_PLANTS;
updateItem();
}
if (RB7) {//????????? ???? (Next item)
activeItem = (activeItem + 1) % N_PLANTS;
updateItem();
}

RBIF = 0;
}
}

int main() {
TRISA = 0b00001111;
TRISB = 0B11000111;
PORTA = 0;
PORTB = 0;

INTF = 0; //reset the external interrupt flag
INTEDG = 1; //interrupt on the rising edge
INTE = 1; //enable the external interrupt
GIE = 1; //set the Global Interrupt Enable
RBIE = 1;
RBIF = 0;
unsigned int a;
TRISD = 0x00;
Lcd_Init();
while (1) {
if (FlagTextChanged == 1) {
FlagTextChanged = 0;
__delay_ms(10000);
__delay_ms(10000);
__delay_ms(10000);
__delay_ms(10000);
}
Lcd_Clear();
Lcd_Set_Cursor(1, 1);
Lcd_Write_String("Ogurec");
Lcd_Set_Cursor(2, 1);
Lcd_Write_String("MPLAB XC8");
__delay_ms(2000);

}
return 0;
}