Book* getBooks(int *booksCountArg) {
    FILE *inputfile;
    inputfile = fopen("library.csv", "r");

    Book *allBooks = malloc(sizeof(Book));
    int bookIterator = 1;
    char buffer[256];

    while (fgets(buffer, 256, inputfile)) {
    int index = 0;
    char *token;
    EMPTY_BOOK(book);
    char *copy = strdup(buffer);

    while((token = strsep(&copy, ","))) {
        switch (index) {
        case 0:
            book.id = token;
            break;
        case 1:
            book.name = token;
            break;
        case 2:
            book.author = token;
            break;
        case 3:
            book.possession = token;
            break;
        case 4:
            book.checkedOutAt = token;
            break;
        case 5:
            book.dueDate = token;
            break;
        }

        index++;
    }

    allBooks = realloc(allBooks, sizeof(Book) * bookIterator);
    allBooks[bookIterator - 1] = book;
    bookIterator++;
    }

    fclose(inputfile);

    *booksCountArg = bookIterator;
    return allBooks;
}