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

$slug = $_GET['slug'] ?? '';
if (!$slug) die("Error.");

$pdo = db();
$stmt = $pdo->prepare("SELECT * FROM campaigns WHERE slug = ?");
$stmt->execute([$slug]);
$campaign = $stmt->fetch();

if ($campaign) {
    // Log click
    $stmt = $pdo->prepare("INSERT INTO stats (campaign_id, type) VALUES (?, 'click')");
    $stmt->execute([$campaign['id']]);
    header("Location: " . $campaign['offer_url']);
    exit;
} else {
    die("Error.");
}
?>