#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "train.h"

struct car* add_car (struct car* first, const char* target) {
    struct car* novyj_vagon = (struct car*) malloc(sizeof(struct car)); // создаём новый вагон
    
    if (novyj_vagon == NULL) {
        printf("Chyba: nepodarilo sa vytvorit novy vozen!\n");
        return first;
    }

    strncpy(novyj_vagon->value, target, SIZE - 1);
    novyj_vagon->value[SIZE - 1] = '\0';
    novyj_vagon->next = NULL;

    if (first == NULL) {
        return novyj_vagon;
    }

    struct car* actual = first;
    while (actual->next != NULL) {
        actual = actual->next;
    }
    actual->next = novyj_vagon;
    return first;
}

void print_train (struct car* first) {
    if (first == NULL) {
        printf("vlak je prazdny!\n");
        return;
    }
    
    struct car* actual = first;
    int schet = 1;
    
    while (actual != NULL) {
        printf("%d. [%s]", schet, actual->value);
        if (actual->next != NULL) {
            printf(" -> ");
        }
        actual = actual->next;
        schet++;
    }
    printf("\n");
}

void cancel_train (struct car* first) {
    struct car* current = first;
    while (current ! = NULL) {
        struct car* next_one = current->next;
           memset(current->value, 0, SIZE);
            free(current);
            current = next_one;;
    }
}


int main() {
    return 0;
}