<?php

declare(strict_types=1);

require __DIR__ . '/dev-db.php';

$pdo = dev_pdo();
$dryRun = in_array('--dry-run', $argv, true);
$rules = [
    // Bei stuendlichem Lauf bleibt der echte Maximalwert unter 24 Stunden.
    'rate_limit_attempts' => ['rate_limit_attempts', 'created_at < DATE_SUB(NOW(), INTERVAL 23 HOUR)'],
    // Taeglicher/stuendlicher Lauf mit einer Tagesreserve: hoechstens 180 Tage.
    'audit_log' => ['audit_log', 'created_at < DATE_SUB(NOW(), INTERVAL 179 DAY)'],
    'outbound_emails' => ['outbound_emails', 'created_at < DATE_SUB(NOW(), INTERVAL 179 DAY)'],
    'auth_tokens' => ['user_auth_tokens', 'expires_at < NOW() OR consumed_at < DATE_SUB(NOW(), INTERVAL 1 DAY)'],
    'stripe_webhook_events' => ['stripe_webhook_events', 'processed_at < DATE_SUB(NOW(), INTERVAL 2 YEAR)'],
    // Allgemeine Verjährung: erst nach drei vollständig abgelaufenen
    // Kalenderjahren. Offene Fälle und Nachweise aktiver Verträge bleiben.
    'processed_legal_requests' => ['legal_requests', "status = 'processed' AND received_at < MAKEDATE(YEAR(CURDATE()) - 3, 1)"],
    'detached_legal_acceptances' => ['legal_acceptances', 'tenant_id IS NULL AND accepted_at < MAKEDATE(YEAR(CURDATE()) - 3, 1)'],
];

$failed = false;
foreach ($rules as $label => [$table, $where]) {
    try {
        if ($dryRun) {
            $count = (int)$pdo->query("SELECT COUNT(*) FROM {$table} WHERE {$where}")->fetchColumn();
            echo "{$label}: {$count} würde(n) gelöscht\n";
            continue;
        }
        $count = $pdo->exec("DELETE FROM {$table} WHERE {$where}");
        echo "{$label}: " . (int)$count . " gelöscht\n";
    } catch (Throwable $e) {
        $failed = true;
        echo "ERROR {$label}: {$e->getMessage()}\n";
    }
}

exit($failed ? 1 : 0);