<?php

namespace App\Services\Hosting\Provisioning;

use App\Services\Hosting\Plesk\PleskClient;
use App\Services\Hosting\Proxmox\ProxmoxClient;
use App\Services\Hosting\Traefik\TraefikGenerator;
use Illuminate\Support\Facades\Log;

class ProvisioningRollback
{
    private array $completed = [];

    public function __construct(
        private readonly ProxmoxClient $proxmox,
        private readonly PleskClient $plesk,
        private readonly TraefikGenerator $traefik,
    ) {}

    public function mark(string $step, array $context = []): void
    {
        $this->completed[] = ['step' => $step, 'context' => $context];
    }

    public function execute(): void
    {
        Log::warning('Provisioning rollback started', ['steps' => count($this->completed)]);

        foreach (array_reverse($this->completed) as $entry) {
            try {
                match ($entry['step']) {
                    'traefik_route' => $this->rollbackTraefik($entry['context']),
                    'plesk_dns' => $this->rollbackDns($entry['context']),
                    'proxmox_vm_started', 'proxmox_vm_created' => $this->rollbackVm($entry['context']),
                    default => null,
                };
            } catch (\Throwable $e) {
                Log::error('Rollback step failed', [
                    'step' => $entry['step'],
                    'error' => $e->getMessage(),
                ]);
            }
        }
    }

    private function rollbackTraefik(array $context): void
    {
        if (! empty($context['domain'])) {
            $this->traefik->removeCustomerRoute($context['domain']);
            Log::info('Rollback: Traefik route removed', $context);
        }
    }

    private function rollbackDns(array $context): void
    {
        if (! empty($context['domain']) && isset($context['subdomain'])) {
            $this->plesk->deleteARecord($context['domain'], $context['subdomain']);
            Log::info('Rollback: Plesk DNS removed', $context);
        }
    }

    private function rollbackVm(array $context): void
    {
        if (! empty($context['vmid'])) {
            $this->proxmox->deleteVM((int) $context['vmid']);
            Log::info('Rollback: Proxmox VM deleted', $context);
        }
    }
}