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

int main()
{
    unsigned short dtime, atime, fnumber, stops, time;
    unsigned int let;
    char days[7+1], from [3+1], to[3+1], fcode [3+1], fclass [10+1], acode[2+1];
    char meal, dual;

    FILE *file = NULL;
    file = fopen("flight.csv", "w");
    if (file==NULL) {
        printf ("Error!");
        return 1;
    }

    while(1) {

        do {
            printf ("Unesi kod leta:(0 za kraj)\n");
            scanf ("%d", &let);

            if (let==0)
                return 1;
        } while (let<0 || let>UINT_MAX);

        do {
            printf ("Unesi broj trajanja leta u danima:\n");
            scanf ("%s", &days);
        } while (strlen(days)>7);

        do {
            printf ("Odakle:\n");
            scanf ("%s", &from);
        } while (strlen(from)>3);

        do {
            printf ("Kamo:\n");
            scanf ("%s", &to);
        } while (strlen(to)>3);

        do {
            printf ("Ocekivano vrijeme polijetanja:\n");
            scanf ("%hd", &dtime);
        } while (dtime<0 || dtime>USHRT_MAX);

        do {
            printf ("Ocekivano vrijeme slijetanja:\n");
            scanf ("%hd", &atime);
        } while (atime<0 || atime>USHRT_MAX);

        do {
            printf ("Kod aviokompanije:\n");
            scanf ("%s", &acode);
        } while (strlen(acode)>2);

        do {
            printf ("Broj leta:\n");
            scanf ("%hd", &fnumber);
        } while (fnumber<0 || fnumber>USHRT_MAX);

        do {
            printf ("Klasa leta:\n");
            scanf ("%s", &fclass);
        } while (strlen(fclass)>10);

        do {
            printf ("Kod zrakoplova:\n");
            scanf ("%s", &fcode);
        } while (strlen(fcode)>3);

        printf ("Kod hrane:\n");
        scanf (" %c", &meal);

        do {
            printf ("Broj zaustavljanja:\n");
            scanf ("%hd", &stops);
        } while (stops<0 || stops>USHRT_MAX);

        printf ("Dvostruki?(Y/N):\n");
        do {
            scanf (" %c", &dual);
        } while (dual!='Y' && dual!='N');

        do {
            printf ("Ukupno vrijeme putovanja:\n");
            scanf ("%hd", &time);
        } while (time<0 || time>USHRT_MAX);

        fprintf(file,"%d;%s;%s;%s;%hd;%hd;%s;%hd;%s;%s;%c;%hd;%c;%hd\n",
                let,days,from,to,dtime,atime,acode,fnumber,fclass,fcode,meal,stops,dual,time);
    }

    fclose(file);
    return 0;
}