<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Http;

class AppCheckUpdateCommand extends Command
{
    protected $signature   = 'app:check-update {--json : Ausgabe als JSON}';
    protected $description = 'Prüft ob ein Update auf Gitea verfügbar ist und speichert das Ergebnis im Cache';

    public function handle(): int
    {
        $current  = config('version.current');
        $giteaUrl = rtrim(config('version.gitea_url'), '/');
        $repo     = config('version.gitea_repo');

        if (empty($giteaUrl)) {
            $this->warn('GITEA_URL ist nicht konfiguriert.');
            Cache::put('app_update_available', null, now()->addHours(1));
            return Command::SUCCESS;
        }

        try {
            $response = Http::timeout(8)
                ->get("{$giteaUrl}/api/v1/repos/{$repo}/releases/latest");

            if (!$response->successful()) {
                $this->warn("Gitea nicht erreichbar (HTTP {$response->status()}).");
                Cache::put('app_update_check_error', "HTTP {$response->status()}", now()->addHours(1));
                return Command::SUCCESS;
            }

            $latest    = $response->json('tag_name', '');
            $available = !empty($latest) && version_compare(
                ltrim($latest, 'v'),
                ltrim($current, 'v'),
                '>'
            );

            // Ergebnis 6 Stunden cachen
            Cache::put('app_update_available', $available ? $latest : false, now()->addHours(6));
            Cache::put('app_update_checked_at', now()->toDateTimeString(), now()->addHours(6));
            Cache::forget('app_update_check_error');

            if ($this->option('json')) {
                $this->line(json_encode([
                    'current'   => $current,
                    'latest'    => $latest,
                    'available' => $available,
                ]));
            } else {
                if ($available) {
                    $this->info("✓ Update verfügbar: {$current} → {$latest}");
                } else {
                    $this->info("✓ Kein Update — aktuelle Version: {$current}");
                }
            }
        } catch (\Exception $e) {
            $this->error('Verbindungsfehler: ' . $e->getMessage());
            Cache::put('app_update_check_error', $e->getMessage(), now()->addHours(1));
        }

        return Command::SUCCESS;
    }
}