#include "list.h"
#include <stdlib.h>

LIST* list_add(LIST* list, void* item)
{

    if (list == NULL)
    {
        list = (LIST*)malloc(sizeof(LIST));
        list->size = 0;
        list->list = (void**)malloc(sizeof(0));

    }

    list->size ++;
    void** new_list = (void**)reallocarray(list->list, list->size, sizeof(void*));

    new_list[list->size-1] = item;
    list->list = new_list;

    return list;

}

LIST* list_remove(LIST* list, unsigned int pos)
{
    for(unsigned int i = pos; i < list->size - 1; i++)
        list->list[i] = list->list[i + 1];

    list->size--;

    void** new_list = reallocarray(list->list, list->size, sizeof(void*));
    list->list = new_list;

    return list;
}

void list_free(LIST* list) {
    for (unsigned int x = 0; x < list->size; x++) 
        free(list->list[x]);

    free(list->list);
    free(list);
}


void *list_get(LIST *list, unsigned int index) {
    if (list == NULL)
        return NULL;

    if (index < list->size) 
        return list->list[index];

    return NULL;
}