<?php

declare(strict_types=1);

namespace KTXC\Service;

use KTXC\Context\IdentityContextInterface;

final class SystemFirewallStatusService
{
    public const PERMISSION_MAINTENANCE_READ = 'firewall.system.maintenance.read';
    public const PERMISSION_SETTINGS_MANAGE = 'firewall.system.settings.manage';

    public function __construct(
        private readonly FirewallStatusService $status,
        private readonly IdentityContextInterface $identity,
        private readonly FirewallSettingsService $settings,
    ) {
    }

    public function metrics(?string $tenantId = null, ?string $since = null): array
    {
        $this->requirePermission(SystemFirewallLogService::PERMISSION_READ);
        return $this->status->systemMetrics($tenantId, $since);
    }

    public function maintenanceStatus(): array
    {
        $this->requirePermission(self::PERMISSION_MAINTENANCE_READ);
        return $this->status->maintenanceStatus();
    }

    public function updateTenantConfiguration(
        string $tenantId,
        bool $enabled,
        int $maxAuthFailures,
        int $authFailureWindow,
        int $autoBlockDuration,
        string $reason
    ): ?array {
        $this->requirePermission(self::PERMISSION_SETTINGS_MANAGE);
        return $this->settings->update(
            $tenantId,
            $enabled,
            $maxAuthFailures,
            $authFailureWindow,
            $autoBlockDuration,
            $reason,
            $this->identity->identifier()
        );
    }

    private function requirePermission(string $permission): void
    {
        if (!$this->identity->hasPermission($permission)) {
            throw new \RuntimeException("Missing required permission: {$permission}");
        }
    }
}