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

struct car* add_car(struct car* first, const char* target) {
    // Vytvorenie noveho vozna
    struct car* new_car = (struct car*)malloc(sizeof(struct car));
    if (new_car == NULL) {
        printf("Chyba: Nepodarilo sa alokovať pamäť pre nový vozeň.\n");
        return first;
    }
    
    // Inicializacia hodnot
    strncpy(new_car->value, target, SIZE);
    new_car->next = NULL;
    
    // Ak vlak neexistuje, novy vozen sa stane prvym
    if (first == NULL) {
        return new_car;
    }
    
    // Najdenie posledneho vozna
    struct car* temp = first;
    while (temp->next != NULL) {
        temp = temp->next;
    }
    
    // Pridanie noveho vozna na koniec
    temp->next = new_car;
    return first;
}

void print_train(struct car* first) {
}

void cancel_train(struct car* first) {
    
}


struct car* clear_train(struct car* first, const char* target) {
	return NULL;
}