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

try {
    $pdo = new PDO("mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8mb4", DB_USER, DB_PASS);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
    require_once 'functions.php';

    function cleanupTags() {
        global $pdo;
        try {
            $pdo->exec("DELETE FROM tags WHERE id NOT IN (SELECT tag_id FROM video_tags)");
        } catch (Exception $e) {
            // Fail silently
        }
    }
} catch (PDOException $e) {
    die("Database Connection Error: " . $e->getMessage());
}
?>