<?php
// Debug-Script für HTTP 500 Internal Server Error
// Führen Sie dies aus, um das Problem zu diagnostizieren

echo "🔍 Debug: HTTP 500 Internal Server Error\n";
echo "=======================================\n\n";

// 1. Prüfe Laravel-Logs
echo "1. Laravel-Logs prüfen:\n";
$logFiles = [
    'storage/logs/laravel.log',
    'storage/logs/laravel-' . date('Y-m-d') . '.log'
];

foreach ($logFiles as $logFile) {
    if (file_exists($logFile)) {
        echo "   📋 $logFile gefunden\n";
        echo "   📄 Letzte 10 Zeilen:\n";
        $lines = file($logFile);
        $lastLines = array_slice($lines, -10);
        foreach ($lastLines as $line) {
            echo "      " . trim($line) . "\n";
        }
    } else {
        echo "   ❌ $logFile nicht gefunden\n";
    }
}

// 2. Prüfe PHP-Fehler
echo "\n2. PHP-Fehler prüfen:\n";
$errorLog = ini_get('error_log');
if ($errorLog && file_exists($errorLog)) {
    echo "   📋 PHP Error Log: $errorLog\n";
    $lines = file($errorLog);
    $lastLines = array_slice($lines, -5);
    foreach ($lastLines as $line) {
        echo "      " . trim($line) . "\n";
    }
} else {
    echo "   ⚠️ PHP Error Log nicht verfügbar\n";
}

// 3. Prüfe Apache-Logs
echo "\n3. Apache-Logs prüfen:\n";
$apacheLogs = [
    '/var/log/apache2/error.log',
    '/var/log/apache2/neonail_error.log'
];

foreach ($apacheLogs as $logFile) {
    if (file_exists($logFile)) {
        echo "   📋 $logFile gefunden\n";
        echo "   📄 Letzte 5 Zeilen:\n";
        $lines = file($logFile);
        $lastLines = array_slice($lines, -5);
        foreach ($lastLines as $line) {
            echo "      " . trim($line) . "\n";
        }
    } else {
        echo "   ❌ $logFile nicht gefunden\n";
    }
}

// 4. Prüfe Dateisystem
echo "\n4. Dateisystem prüfen:\n";
$criticalFiles = [
    'public/index.php' => 'Laravel Entry Point',
    'bootstrap/app.php' => 'Laravel Bootstrap',
    'vendor/autoload.php' => 'Composer Autoload',
    'config/app.php' => 'App Config',
    '.env' => 'Environment File',
    'database.sqlite' => 'Database File'
];

foreach ($criticalFiles as $file => $description) {
    if (file_exists($file)) {
        $perms = substr(sprintf('%o', fileperms($file)), -4);
        echo "   ✅ $description: $file (Perms: $perms)\n";
    } else {
        echo "   ❌ $description fehlt: $file\n";
    }
}

// 5. Prüfe Verzeichnisberechtigungen
echo "\n5. Verzeichnisberechtigungen prüfen:\n";
$directories = [
    'storage' => 'Storage Directory',
    'storage/logs' => 'Logs Directory',
    'storage/framework' => 'Framework Directory',
    'storage/framework/cache' => 'Cache Directory',
    'storage/framework/sessions' => 'Sessions Directory',
    'storage/framework/views' => 'Views Directory',
    'bootstrap/cache' => 'Bootstrap Cache'
];

foreach ($directories as $dir => $description) {
    if (is_dir($dir)) {
        $perms = substr(sprintf('%o', fileperms($dir)), -4);
        $writable = is_writable($dir) ? 'writable' : 'not writable';
        echo "   ✅ $description: $dir (Perms: $perms, $writable)\n";
    } else {
        echo "   ❌ $description fehlt: $dir\n";
    }
}

// 6. Prüfe Laravel-Bootstrap
echo "\n6. Laravel-Bootstrap Test:\n";
try {
    require_once 'vendor/autoload.php';
    echo "   ✅ Composer Autoload erfolgreich\n";
    
    $app = require_once 'bootstrap/app.php';
    echo "   ✅ Laravel App erstellt\n";
    
    $kernel = $app->make('Illuminate\Contracts\Console\Kernel');
    echo "   ✅ Kernel erstellt\n";
    
    $kernel->bootstrap();
    echo "   ✅ Laravel Bootstrap erfolgreich\n";
    
} catch (Exception $e) {
    echo "   ❌ Laravel-Fehler: " . $e->getMessage() . "\n";
    echo "   📍 Datei: " . $e->getFile() . ":" . $e->getLine() . "\n";
}

echo "\n🔧 Nächste Schritte:\n";
echo "1. Prüfen Sie die Laravel-Logs für detaillierte Fehlermeldungen\n";
echo "2. Aktivieren Sie APP_DEBUG=true in .env\n";
echo "3. Prüfen Sie die Apache-Logs für Server-Fehler\n";
echo "4. Stellen Sie sicher, dass alle Verzeichnisse beschreibbar sind\n";
?>