# Erforderliche Assemblies laden
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

# Formular erstellen
$form = New-Object System.Windows.Forms.Form
$form.Text = "Benutzer- und Gruppenerstellung"
$form.Size = New-Object System.Drawing.Size(500, 600)
$form.StartPosition = "CenterScreen"

# Labels und Textboxen erstellen
$labels = @("Type", "Name", "FirstName", "LastName", "SAMAccountName", "UPN", "OU", "DC", "Password", "Group", "GroupOU")
$positions = 20
$textBoxes = @{}

foreach ($label in $labels) {
    $labelControl = New-Object System.Windows.Forms.Label
    $labelControl.Text = $label
    $labelControl.Size = New-Object System.Drawing.Size(120, 20)
    $labelControl.Location = New-Object System.Drawing.Point(20, $positions)
    $form.Controls.Add($labelControl)
    
    $textBox = New-Object System.Windows.Forms.TextBox
    $textBox.Size = New-Object System.Drawing.Size(300, 20)
    $textBox.Location = New-Object System.Drawing.Point(150, $positions)
    $form.Controls.Add($textBox)
    $textBoxes[$label] = $textBox
    
    $positions += 30
}

# OK-Button
$okButton = New-Object System.Windows.Forms.Button
$okButton.Text = "OK"
$okButton.Location = New-Object System.Drawing.Point(200, $positions)
$okButton.Add_Click({
    $form.Close()
})
$form.Controls.Add($okButton)

# Formular anzeigen
$form.ShowDialog()

# Eingabedaten extrahieren
$data = @{
    Type = $textBoxes["Type"].Text
    Name = $textBoxes["Name"].Text
    FirstName = $textBoxes["FirstName"].Text
    LastName = $textBoxes["LastName"].Text
    SAMAccountName = $textBoxes["SAMAccountName"].Text
    UPN = $textBoxes["UPN"].Text
    OU = $textBoxes["OU"].Text
    DC = $textBoxes["DC"].Text
    Password = $textBoxes["Password"].Text
    Group = $textBoxes["Group"].Text
    GroupOU = $textBoxes["GroupOU"].Text
}

# Überprüfen, ob die OU und DC Werte haben
if (-not $data.OU) { $data.OU = "DefaultOU" }
if (-not $data.DC) { $data.DC = "DefaultDC" }

# Benutzer oder Gruppe erstellen basierend auf dem Typ
if ($data.Type -eq 'User' -or $data.Type -eq 'SA') {
    $name = if ($data.Name) { $data.Name } else { $data.FirstName + " " + $data.LastName }
    if (-not (Get-ADUser -Filter "SamAccountName -eq '$($data.SAMAccountName)'")) {
        New-ADUser -Name $name -GivenName $data.FirstName -Surname $data.LastName -SamAccountName $data.SAMAccountName -UserPrincipalName $data.UPN -Path "OU=$($data.OU),DC=$($data.DC)" -AccountPassword (ConvertTo-SecureString $data.Password -AsPlainText -Force) -Enabled $true
        $groups = $data.Group -split ','
        foreach ($group in $groups) {
            if (Get-ADGroup -Filter "Name -eq '$group'") {
                Add-ADGroupMember -Identity $group -Members $data.SAMAccountName
            } else {
                New-ADGroup -Name $group -GroupScope Global -Path "OU=$($data.GroupOU),DC=$($data.DC)"
                Add-ADGroupMember -Identity $group -Members $data.SAMAccountName
            }
        }
    }
} elseif ($data.Type -eq 'Group') {
    if (-not (Get-ADGroup -Filter "Name -eq '$($data.Group)'")) {
        New-ADGroup -Name $data.Group -GroupScope Global -Path "OU=$($data.GroupOU),DC=$($data.DC)"
    }
}