#Because reasons
clear

Write-Host "======= Organizational Structure Creation Script ======="

# Run Script
Script

# Main
function Script
{
    $OU = GetOrganizationalUnits

    CreateOrganizationalUnits($OU)
}

# Gets and verifies Organizational Unit input
function GetOrganizationalUnits
{
    #Loop until input is satisfying all requirements
    do
    {
        try
        {
            Write-Host "Insert names of Organizational Units to create - Separate by a comma if multiple (Defaults to Odense, Horsens and Skive if empty)"

            $OrganizationalUnits = Read-Host

            # Set to defaults if blank input
            if(!$OrganizationalUnits)
            {
                $OrganizationalUnits = "Odense,Horsens,Skive"
            }
            # Verify that first character is a letter
            elseif($OrganizationalUnits[0] -notMatch "^[a-zA-Z]*$")
            {
                throw
            }
            # Verify that string does not contain any special characters that aren't allowed
            elseif($OrganizationalUnits -notMatch "^[a-zA-Z0-9,_-]*$")
            {
                throw
            }
        }
        catch
        {
            Write-Host "Input has to start with a letter and may have numbers, dashes and underscores - Commas are separators" -foreground "Red"
            #Reset variable so loop doesn't break.
            $OrganizationalUnits = ""
            continue
        }
    }
    until($OrganizationalUnits)

    #Return value
    return $OrganizationalUnits

}

# Checks and creates requested Organizational Units if they don't already exist
function CreateOrganizationalUnits($Units) {

    Write-Host "We made it here bois"

    Write-Host "Our OUs are" $Units

}