<?php
session_start();
include 'library.php';
$op = $_GET['op'];
$lib = new Library();
if ($op == "add") {
$lib->addBook($_GET['title'], $_GET['author']);
} else {
if ($op == "add_existing") {
$lib->addBook_existing($_GET['id']);
} else {
if ($op == "delete") {
$book = new Book($_GET['copyId'], 'copy');
$book->delete();
} else {
if ($op == "shelves") {
$lib = new Library();
$html = $lib->get_shelves_tableview('librarian');
echo $html;
}
}
}
}