<?php
require_once 'db/config.php';

$short_code = $_GET['code'] ?? null;

if (!$short_code) {
    header("Location: /");
    exit;
}

$pdoconnection = db();
$stmt = $pdoconnection->prepare("SELECT original_url FROM links WHERE short_code = ?");
$stmt->execute([$short_code]);
$link = $stmt->fetch();

if ($link) {
    header("Location: " . $link['original_url']);
    exit;
} else {
    header("Location: /");
    exit;
}