<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class MigrateEnvReverb extends Command
{
    protected $signature   = 'mailwolt:migrate-env-reverb';
    protected $description = 'Migriert veraltete REVERB_* .env-Werte auf Domain-Basis';

    public function handle(): int
    {
        $env = base_path('.env');
        if (!file_exists($env)) {
            $this->warn('.env nicht gefunden.');
            return self::SUCCESS;
        }

        $content = file_get_contents($env);

        // APP_HOST ermitteln – Fallback auf APP_URL
        $appHost = $this->extractVar($content, 'APP_HOST');
        if (!$appHost) {
            $appUrl  = $this->extractVar($content, 'APP_URL');
            $appHost = parse_url($appUrl ?: '', PHP_URL_HOST) ?: '';
        }

        if (!$appHost || preg_match('/^\d+\.\d+\.\d+\.\d+$/', $appHost)) {
            $this->warn('Kein gültiger Hostname gefunden – Migration übersprungen.');
            return self::SUCCESS;
        }

        $viteHost = $this->extractVar($content, 'VITE_REVERB_HOST');
        if ($viteHost === '${REVERB_HOST}' || $viteHost === $appHost) {
            $this->info('REVERB-Werte bereits korrekt.');
            return self::SUCCESS;
        }

        $scheme = file_exists("/etc/letsencrypt/live/{$appHost}/fullchain.pem") ? 'https' : 'http';
        $port   = $scheme === 'https' ? '443' : '80';

        $fixes = [
            'REVERB_HOST'          => '${APP_HOST}',
            'REVERB_PORT'          => $port,
            'REVERB_SCHEME'        => $scheme,
            'REVERB_PATH'          => '/ws',
            'REVERB_SERVER_HOST'   => '127.0.0.1',
            'REVERB_SERVER_PORT'   => '8080',
            'REVERB_SERVER_SCHEME' => 'http',
            'REVERB_SERVER_PATH'   => '',
            'VITE_REVERB_HOST'     => '${REVERB_HOST}',
            'VITE_REVERB_PORT'     => '${REVERB_PORT}',
            'VITE_REVERB_SCHEME'   => '${REVERB_SCHEME}',
            'VITE_REVERB_PATH'     => '${REVERB_PATH}',
        ];

        foreach ($fixes as $key => $val) {
            if (preg_match("/^{$key}=/m", $content)) {
                $content = preg_replace("/^{$key}=.*/m", "{$key}={$val}", $content);
            } else {
                $content .= "\n{$key}={$val}";
            }
        }

        file_put_contents($env, $content);
        $this->info("REVERB .env migriert für Host: {$appHost}");
        return self::SUCCESS;
    }

    private function extractVar(string $content, string $key): string
    {
        preg_match("/^{$key}=(.*)$/m", $content, $m);
        return trim($m[1] ?? '', " \t\"'");
    }
}