// $_GET['recipient'] = 'ben';
// $_GET['subject'] = 'test message';
// $_GET['content'] = 'i hope to god this works ben';
// $_GET['jsonString'] = '{"recipient":"ben","subject":"json test","message":"JSON TEST DURRRRR"}';
$med = new Mediator();
// $med->displayAllSessions();
// $_GET['site'] = "John Hay HS";
// $_GET['date'] = "12-01-2015";
// $_GET['time'] = "8:30PM";
// $_GET['subject'] = "programming";
// $_GET['gradeLevel'] = "12";
if (isset($_GET['function'])) {
$function = $_GET['function'];
/* Mediator functions: */
if ($function == 'displayAllSessions') {
$med->displayAllSessions();
} elseif ($function == 'logout') {
$med->getUser()->logout();
} elseif ($function == 'getJsonMessages') {
$med->getJsonMessages();
} elseif ($function == 'sendJsonMessage') {
$med->sendJsonMessage($_GET['jsonString']);
} elseif ($function == 'sendMessage') {
$med->sendMessage($_GET['recipient'], $_GET['subject'], $_GET['content']);
} elseif ($function == 'getAllowedRecipients') {
$med->getAllowedRecipients();
} elseif ($function == 'deleteMessage') {
$med->deleteMessage($_GET['messageID']);
} elseif ($function == 'registerJsonUser') {
$med->registerJsonUser($_GET['jsonString']);
} elseif ($function == 'displayAttendingSessions') {
