##################################################################################
#
#  Script name: Set-LocalAccount.ps1
#  Author:      niklas.goude@zipper.se
#  Homepage:    www.powershell.nu
#
##################################################################################

param([string]$UserName, [string]$Password, [switch]$Add, [switch]$Remove, [switch]$ResetPassword, [switch]$help)

function GetHelp() {

$HelpText = @"

DESCRIPTION:

NAME: Set-LocalAccount.ps1
Adds or Removes a Local Account

PARAMETERS: 

-UserName        Name of the User to Add or Remove (Required)
-Password        Sets Users Password (optional)
-Add             Adds Local User (Optional)
-Remove          Removes Local User (Optional)
-ResetPassword   Resets Local User Password (Optional)
-help            Prints the HelpFile (Optional)

SYNTAX:

.\Set-LocalAccount.ps1 -UserName nika -Password Password1 -Add

Adds Local User nika and sets Password to Password1

.\Set-LocalAccount.ps1 -UserName nika -Remove

Removes Local User nika

.\Set-LocalAccount.ps1 -UserName nika -Password Password1 -ResetPassword

Sets Local User nika's Password to Password1


.\Set-LocalAdmin.ps1 -help

Displays the helptext

"@
$HelpText
}

function AddRemove-LocalAccount ([string]$UserName, [string]$Password, [switch]$Add, [switch]$Remove, [switch]$ResetPassword) {

	[string]$computerName = "$env:computername"



	if($Add) {
		[string]$ConnectionString = "WinNT://$computerName"
		$ADSI = [adsi]$ConnectionString
		$User = $ADSI.Create("user",$UserName)
		$User.SetPassword($Password)
		$User.SetInfo()

	}

	if($Remove) {
		[string]$ConnectionString = "WinNT://$computerName"
		$ADSI = [adsi]$ConnectionString
		$ADSI.Delete("user",$UserName)
	}

	if($ResetPassword) {
		[string]$ConnectionString = "WinNT://" + $ComputerName + "/" + $UserName + ",user"
		$Account = [adsi]$ConnectionString
		$Account.psbase.invoke("SetPassword", $Password)
	}
}

if($help) { GetHelp; Continue }
if($UserName -AND $Password -AND $Add -AND !$ResetPassword) { AddRemove-LocalAccount -UserName $UserName -Password $Password -Add }
if($UserName -AND $Password -AND $ResetPassword) { AddRemove-LocalAccount -UserName $UserName -Password $Password -ResetPassword }
if($UserName -AND $Remove) { AddRemove-LocalAccount -UserName $UserName -Remove }