#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>

#define SIZE 128

int main()
{
    char line[SIZE];
    char option1[SIZE];
    char option2[SIZE];
    char question[SIZE];
    char question2[SIZE];
    char answer = '0';   //'0' = ako keby 'NULL'/ absencia hodnoty
    bool isFirstQuestionRead = false;
    bool isFirstOptionLoaded = false;
    bool err = false;
    
    option1[0] = '\0';
    option2[0] = '\0';
    question[0] = '\0';
    question2[0] = '\0';
    line[0] = '\0';

    while (fgets(line, SIZE, stdin) != NULL)
    {
        if (line[0] == '*')
        {
            //precita a ulozi odpoved na zaklade kontrolnej premeny
            if (!isFirstOptionLoaded)
            {
                sscanf(line, "%s [^\n]", &option1);
                isFirstOptionLoaded = true;
            }
            else
            {
                sscanf(line, "%s [^\n]", &option2);
            }
        }
        else if (line[1] == '\n')
        {
            if (answer == '0')
            { 
                answer = line[0]; 
            }
            else
            {
                answer2 = line[0];
            }
            
        }
        else if (!isFirstQuestionRead)
        {
            sscanf(line, "%127[^\n]]", question);
            isFirstQuestionRead = true;
            // strcat(question, "?");
        }
        else
        {
            sscanf(line, "%127[^\n]]", question2);
        }
    }

    if (answer == '0') { err = true; }

    printf("Expert z bufetu to vie.\n");
    printf("Pozna 2 druhov ovocia a zeleniny.\n");
    printf("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.\n");
    printf("%s\n", question);
    if (answer == 'a')
    {
        printf("%s\n", option1);
    }
    else if (answer == 'n')
    {
        printf("%s\n", option2);
    }
    else if (answer == '0')
    {
        printf("Koniec vstupu\n");
    }
    else  //v pripade, ze nespravny vstup bol zadany uzivatelom
    {
        printf("Nerozumiem\n");
        err = true;
    }
    if (!err) { printf("Koniec\n"); }

    return 0;
}