<?php

namespace App\Http\Controllers;

use App\Models\Domaine;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Inertia\Inertia;
use Inertia\Response;
use Iodev\Whois\Factory as WhoisFactory;
use Iodev\Whois\Exceptions\ConnectionException;
use Iodev\Whois\Exceptions\ServerMismatchException;
use Iodev\Whois\Exceptions\WhoisException;
use Carbon\Carbon;

class DomaineController extends Controller
{
    public function index(Request $request): Response
    {
        $this->authorize('viewAny', Domaine::class);

        $query = Domaine::query();

        $query->when($request->search, function ($q, $search) {
            $q->where('nom', 'like', "%{$search}%")
              ->orWhere('prestataire', 'like', "%{$search}%")
              ->orWhere('hebergeur', 'like', "%{$search}%");
        });

        $domaines = $query->orderBy('date_echeance', 'asc')->paginate(20)->withQueryString();

        $domaines->getCollection()->transform(function ($domaine) {
            $domaine->append(['est_proche_echeance', 'est_en_retard']);
            return $domaine;
        });

        return Inertia::render('Domaines/Index', [
            'domaines' => $domaines,
            'filters'  => $request->only(['search']),
        ]);
    }

    public function create(): Response
    {
        $this->authorize('create', Domaine::class);

        return Inertia::render('Domaines/Create');
    }

    public function store(Request $request): RedirectResponse
    {
        $this->authorize('create', Domaine::class);

        $validated = $request->validate([
            'nom'           => 'required|string|max:255|unique:domaines,nom',
            'date_echeance' => 'nullable|date',
            'prestataire'   => 'nullable|string',
            'hebergeur'     => 'nullable|string|max:255',
        ]);

        $domaine = Domaine::create($validated);

        // Si la date d'échéance n'est pas fournie, on tente de la récupérer via WHOIS
        if (empty($validated['date_echeance'])) {
            $this->syncWhoisDate($domaine);
        }

        return redirect()->route('domaines.index')
            ->with('success', 'Domaine créé avec succès.');
    }

    public function edit(Domaine $domaine): Response
    {
        $this->authorize('update', $domaine);

        return Inertia::render('Domaines/Edit', [
            'domaine' => $domaine,
        ]);
    }

    public function update(Request $request, Domaine $domaine): RedirectResponse
    {
        $this->authorize('update', $domaine);

        $validated = $request->validate([
            'nom'           => 'required|string|max:255|unique:domaines,nom,' . $domaine->id,
            'date_echeance' => 'nullable|date',
            'prestataire'   => 'nullable|string',
            'hebergeur'     => 'nullable|string|max:255',
        ]);

        $domaine->update($validated);

        return redirect()->route('domaines.index')
            ->with('success', 'Domaine mis à jour.');
    }

    public function destroy(Domaine $domaine): RedirectResponse
    {
        $this->authorize('delete', $domaine);

        $domaine->delete();

        return redirect()->route('domaines.index')
            ->with('success', 'Domaine supprimé.');
    }

    public function syncWhois(Domaine $domaine): RedirectResponse
    {
        $this->authorize('update', $domaine);

        if ($this->syncWhoisDate($domaine)) {
            return back()->with('success', 'Date d\'échéance synchronisée avec le Whois depuis le port 43.');
        }

        return back()->with('error', 'Impossible de récupérer la date d\'échéance pour ce domaine (Whois indisponible ou format inconnu).');
    }

    private function syncWhoisDate(Domaine $domaine): bool
    {
        try {
            $whois = WhoisFactory::get()->createWhois();
            $info = $whois->loadDomainInfo($domaine->nom);
            
            if ($info && $info->expirationDate) {
                // expirationDate is a unix timestamp integer in the package
                $domaine->update([
                    'date_echeance' => Carbon::createFromTimestamp($info->expirationDate)->format('Y-m-d')
                ]);
                return true;
            }
        } catch (ConnectionException $e) {
            // Port 43 bloqué ou timeout
            return false;
        } catch (ServerMismatchException $e) {
            // Serveur Whois inconnu
            return false;
        } catch (WhoisException $e) {
            // Autre erreur Whois
            return false;
        } catch (\Exception $e) {
            // Erreur inattendue
            return false;
        }

        return false;
    }
}