<?php
require_once "sql.php";
if(isset($_GET['name']))
	$name = $_GET['name'];
else
	$name = "";
if(isset($_GET['number']))
	$number = $_GET['number'];
else
	$number = "";
if(isset($_GET['port']))
	$port = $_GET['port'];
else
	$port = "";

if($name == "")
	error("Empty name");
if($number == "")
	error("Empty number");
if($port == "")
	error("Empty port");
$port = intval($port);
if($port < 1 || $port > 65535)
	error("Invalid port (1 <= port <= 65535)");

$select = $db->prepare("SELECT id FROM gates WHERE number=:number");
if($select->execute(array(":number" => $number)))
{
	if($g = $select->fetch())
	{
		$update = $db->prepare("UPDATE gates SET name=:name, address=:address, port=:port, lastSeen=NULL WHERE id=:id");
		if($update->execute(array(":name" => $name, ":address" => $_SERVER['REMOTE_ADDR'], ":port" => $port, ":id" => $g['id'])))
			echo json_encode(array("id" => intval($g['id']), "gateTimeout" => $gateTimeout));
		else
			error("Failed to update database");
	}
	else
	{
		$insert = $db->prepare("INSERT INTO gates (name, number, address, port) VALUES (:name, :number, :address, :port) ON DUPLICATE KEY UPDATE lastSeen=NULL");
		if($insert->execute(array(":name" => $name, ":number" => $number, ":address" => $_SERVER['REMOTE_ADDR'], ":port" => $port)))
			echo json_encode(array("id" => intval($db->lastInsertId()), "gateTimeout" => $gateTimeout));
		else
			error("Failed to insert into database");
	}
}
else
	error("Failed to query gates");
?>