Spaghetti (Hello, Powershell)

###################################################################
#Author  :  oneZergArmy
#Date    :  14.08.2015
#Version :  1.1
#Desc.   :  Create users from .csv file and add them to a group
###################################################################

Import-Module ActiveDirectory

#Imports the .csv file. Remember to change the path and name of the file.
$csv = import-csv -Path 'C:\Students-ICT.csv' -Delimiter ';'

#Goes through each row in the .csv file.
foreach ($row in $csv)
{

    #------------------------------------------------------------------
    #VARIABLES - Change these
    #------------------------------------------------------------------

    #Domain name for the server
    $domain = '@lab.local' #testing server

    #Default password
    $password = "Passord1"

    #Paths for were the users are added
    $path = "ou=$row.Klasse,ou=Brukere,ou=IKT-FAG,dc=lab,dc=local"

    #------------------------------------------------------------------
    #VARIABLES - Don't change
    #------------------------------------------------------------------

    #Splits the given name and the surname into seperate variables.
    $givenName = $row.Name.split()[0]
    $surname = $row.Name.split()[1]

    #Gets the users class from the csv document
    $class = $row.Klasse

    #Generates a username. Jake Doe = JakDoe
    $username = $givenName.substring(0,3) + $surname.substring(0,3)

    #UserPrincipalName generator
    $UPN = $username + $domain

    #Checks if the username already exists in AD
    $checkUser = Get-ADUser -filter {SamAccountName -eq $username}

    #------------------------------------------------------------------
    #Script
    #------------------------------------------------------------------

    #Function for creating a user
    Function createUser(){

        New-ADUser -Name $row.Name -GivenName $givenName -Surname $surname -displayName $row.Name -AccountPassword (ConvertTo-SecureString -AsPlainText $password -Force) -ChangePasswordAtLogon $true -SamAccountName $username -UserPrincipalName $UPN -Path $path -Enabled $true

    }

    #Checks if the user is already in AD. If so, the user will be named something like JakDoe2
    if($checkUser){

        $username = $username + 2
        createUser

    #If it does not exist, user will be created and named JakDoe
    }else {

        createUser

    }

    #Add the user to the correct group
    Add-ADGroupMember -Identity $class -Member $username

}