<?php

namespace App\Services\Hosting\Provisioning;

use App\Models\Customer;
use App\Models\User;
use App\Models\VmActivityLog;
use App\Services\Hosting\Proxmox\ProxmoxClient;
use Illuminate\Support\Facades\Log;

class DeprovisionService
{
    public function __construct(
        private readonly ProvisioningService $provisioning,
        private readonly ProxmoxClient $proxmox,
        private readonly VmidReservationService $vmidReservation,
    ) {}

    /**
     * Endgültige Löschung (WHMCS Terminate / Kunde nicht verlängert).
     */
    public function terminatePermanently(Customer $customer, ?User $actor = null): void
    {
        Log::info('Permanent deprovision started', ['customer_id' => $customer->id]);

        $this->deleteBackups($customer);

        $customerId = $customer->id;
        $vmid = $customer->vmid;

        if ($actor) {
            VmActivityLog::query()->create([
                'customer_id' => $customerId,
                'user_id' => $actor->id,
                'action' => 'terminate.permanent',
                'status' => 'success',
            ]);
        }

        $this->provisioning->deprovision($customer);

        if ($vmid) {
            $this->vmidReservation->scheduleRelease((int) $vmid, $customer);
        }

        $customer->devices()->delete();
        $customer->delete();
    }

    /**
     * VM entfernen, Kundeneintrag bleibt (Support-Fall).
     */
    public function removeVmOnly(Customer $customer, ?User $actor = null): void
    {
        $this->provisioning->deprovision($customer);

        if ($customer->vmid) {
            $this->vmidReservation->scheduleRelease((int) $customer->vmid, $customer);
        }

        $customer->update([
            'status' => 'failed',
            'provisioning_step' => 'deprovisioned',
            'vmid' => null,
        ]);
    }

    private function deleteBackups(Customer $customer): void
    {
        if (! $customer->vmid) {
            return;
        }

        if (! config('hosting.backups.enabled', false)) {
            Log::info('Backup deletion skipped (PBS not enabled)', ['vmid' => $customer->vmid]);

            return;
        }

        // PBS-Integration folgt in Phase 2, wenn API-Rechte auf inett-PBS vorhanden
        Log::warning('PBS backup purge pending implementation', [
            'vmid' => $customer->vmid,
            'storage' => config('hosting.backups.pbs_storage'),
        ]);
    }
}