param (
    [Parameter(Mandatory = $true)]
    [string]$Path,

    [Parameter(Mandatory = $false)]
    [int]$Port = 8080
)

# Prüfen, ob der Pfad existiert
if (-Not (Test-Path $Path)) {
    Write-Error "❌ Der angegebene Pfad '$Path' existiert nicht."
    exit 1
}

# Zielverzeichnis und ggf. Dateiname extrahieren
if (Test-Path $Path -PathType Leaf) {
    $Directory = Split-Path $Path
    $FileName = Split-Path $Path -Leaf
} else {
    $Directory = $Path
    $FileName = $null
}

# HTTP-Listener starten
Add-Type -AssemblyName System.Net.HttpListener
$listener = New-Object System.Net.HttpListener
$listener.Prefixes.Add("http://+:$Port/")
$listener.Start()

Write-Host "🌐 HTTP-Server läuft auf Port $Port"
Write-Host "📂 Freigegeben: $Path"
Write-Host "📡 Warte auf Anfragen... (Strg+C zum Beenden)"

while ($listener.IsListening) {
    try {
        $context = $listener.GetContext()
        $request = $context.Request
        $response = $context.Response

        $clientIP = $request.RemoteEndPoint.Address.ToString()
        $urlPath = $request.Url.AbsolutePath.TrimStart('/')
        $localPath = Join-Path $Directory $urlPath

        if ($FileName -and ($urlPath -ne $FileName)) {
            $response.StatusCode = 403
            $response.Close()
            continue
        }

        if (Test-Path $localPath -PathType Leaf) {
            $bytes = [System.IO.File]::ReadAllBytes($localPath)
            $response.ContentType = "application/octet-stream"
            $response.ContentLength64 = $bytes.Length
            $response.OutputStream.Write($bytes, 0, $bytes.Length)

            $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
            Write-Host "[$timestamp] $clientIP → /$urlPath ($($bytes.Length) Bytes)"
        } else {
            $response.StatusCode = 404
        }

        $response.Close()
    } catch {
        Write-Warning "⚠️ Fehler: $_"
    }
}