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

$pdo = db();

try {
    // Add slug column to modifiers table if it doesn't exist
    $pdo->exec("ALTER TABLE modifiers ADD COLUMN slug VARCHAR(100) AFTER name");
    echo "Column 'slug' added to 'modifiers' table.\n";

    // Populate initial slugs based on names
    $stmt = $pdo->query("SELECT id, name FROM modifiers");
    $modifiers = $stmt->fetchAll(PDO::FETCH_ASSOC);

    $updateStmt = $pdo->prepare("UPDATE modifiers SET slug = ? WHERE id = ?");
    foreach ($modifiers as $m) {
        $slug = strtolower(trim(preg_replace('/[^A-Za-z0-9-]+/', '_', $m['name'])));
        $updateStmt->execute([$slug, $m['id']]);
    }
    echo "Initial slugs populated for 'modifiers' table.\n";

} catch (PDOException $e) {
    if ($e->getCode() == '42S21') {
        echo "Column 'slug' already exists in 'modifiers' table.\n";
    } else {
        echo "Error: " . $e->getMessage() . "\n";
    }
}