<?php
include "lib/init.php";
//general php implements 3 operations login, logout, register
$user = get_user();
//get user and authentication check
$action = $_GET["action"];
$method = $_SERVER["REQUEST_METHOD"];
switch ($action) {
case "list":
contacts::listContacts();
break;
case "add":
if ($method === "GET") {
contacts::displayAddContactForm();
} elseif ($method === "POST") {
contacts::handleAddContact();
}
break;
case "delete":
$id = $_GET["id"];
delete_contact($id);
header("Location: /contacts.php?action=list");
break;
case "edit":
$id = $_GET["id"];
if ($method === "GET") {
contacts::displayEditContactForm($id);
} elseif ($method === "POST") {
contacts::handleEditContact($id);
}