<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Artisan;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Http;
use Illuminate\View\View;

class UpdateController extends Controller
{
    public function index(): View
    {
        $currentVersion = config('version.current');
        $giteaUrl       = rtrim(config('version.gitea_url'), '/');
        $giteaRepo      = config('version.gitea_repo');

        $latestVersion    = null;
        $updateAvailable  = false;
        $releaseNotes     = null;
        $error            = null;
        $checkedAt        = Cache::get('app_update_checked_at');

        if (empty($giteaUrl)) {
            $error = 'GITEA_URL ist nicht in der .env konfiguriert. Bitte eintragen und Container neu starten.';
        } else {
            // Frisch prüfen (Cache überschreiben bei manuellem Aufruf)
            try {
                $response = Http::timeout(8)
                    ->get("{$giteaUrl}/api/v1/repos/{$giteaRepo}/releases/latest");

                if ($response->successful()) {
                    $latestVersion   = $response->json('tag_name', '');
                    $releaseNotes    = $response->json('body', '');
                    $updateAvailable = !empty($latestVersion) && version_compare(
                        ltrim($latestVersion, 'v'),
                        ltrim($currentVersion, 'v'),
                        '>'
                    );

                    Cache::put('app_update_available', $updateAvailable ? $latestVersion : false, now()->addHours(6));
                    Cache::put('app_update_checked_at', now()->toDateTimeString(), now()->addHours(6));
                    $checkedAt = now()->toDateTimeString();
                } else {
                    $error = "Gitea nicht erreichbar (HTTP {$response->status()}).";
                }
            } catch (\Exception $e) {
                $error = 'Verbindungsfehler: ' . $e->getMessage();
            }
        }

        return view('admin.update', compact(
            'currentVersion', 'latestVersion', 'updateAvailable',
            'releaseNotes', 'error', 'checkedAt', 'giteaUrl', 'giteaRepo'
        ));
    }

    public function install(Request $request): RedirectResponse
    {
        $tag = $request->input('tag');

        // Update-Command synchron ausführen und Ausgabe erfassen
        Artisan::call('app:install-update', array_filter(['--tag' => $tag]));
        $log = Artisan::output();

        $success = !str_contains($log, 'fehlgeschlagen') && !str_contains($log, 'FAILURE');

        return redirect()->route('admin.update.index')->with([
            'update_result' => $success ? 'success' : 'error',
            'update_log'    => $log,
        ]);
    }
}