<?php

/**
 * Cleanup CLI script - maze stare rate limit soubory a audit log zaznamy.
 *
 * Pouziti: php api/cleanup.php
 * Doporuceny cron: 0 3 * * * php /path/to/api/cleanup.php
 */

declare(strict_types=1);

if (php_sapi_name() !== 'cli') {
    http_response_code(403);
    echo 'Pouze CLI';
    exit(1);
}

require_once __DIR__ . '/config.php';

$rateLimitDir = __DIR__ . '/rate_limits';
$rateLimitMaxAge = 24 * 60 * 60; // 24 hodin
$auditLogMaxDays = 90;

$deleted = 0;
$errors = 0;

// Rate limit soubory starsi 24h
if (is_dir($rateLimitDir)) {
    $now = time();
    $files = glob($rateLimitDir . '/*.json');
    if ($files !== false) {
        foreach ($files as $file) {
            $age = $now - filemtime($file);
            if ($age > $rateLimitMaxAge) {
                if (unlink($file)) {
                    $deleted++;
                } else {
                    $errors++;
                }
            }
        }
    }
}

echo "Rate limits: smazano {$deleted} souboru" . ($errors > 0 ? " ({$errors} chyb)" : '') . "\n";

// Audit log zaznamy starsi 90 dni
try {
    $pdo = db();
    $stmt = $pdo->prepare(
        'DELETE FROM audit_logs WHERE created_at < DATE_SUB(NOW(), INTERVAL ? DAY)'
    );
    $stmt->execute([$auditLogMaxDays]);
    $auditDeleted = $stmt->rowCount();
    echo "Audit log: smazano {$auditDeleted} zaznamu starsich {$auditLogMaxDays} dni\n";
} catch (PDOException $e) {
    echo "Audit log: chyba - {$e->getMessage()}\n";
}