Shutdown/Start VM from Hyper-v Cluster remotely with PS script

Hello, this is my first script that I manage to create from start to finish.

What it does it connects to a Hyper-V Cluster, looks for a specific VM in that cluster and retains the node that it resides on, then connects to the node to shutdown/start the VM.

I made it like this because using the specific cluster Hyper-V commands (Stop-ClusterResource) doesn't do a complete shutdown, it just puts the VM on a sleep/pause state.

If you have any advice on how to improve this I would be grateful.

# password saved in .txt
#(Get-Credential).Password | ConvertFrom-SecureString | Out-File -PSPath C:\Scripts\passCLU.txt

$path = "E:\Scripts\passCLU.txt"
$CLUIP = "--.22"
$LogID = "-"
$Node1IP = "--.20"
$Node2IP = "--.21"
$Node3IP = "--.24"
$Node4IP = "--.25"
$VM ="-" #couldn t pass this variable through invoke-command

Set-Item WSMan:\localhost\Client\TrustedHosts -Value "--.22,--.20,--.21,--.24,--.25" -Force

#retrieves the password and creates the credentials

function InitPassword($path, $LogID) {

$global:password = Get-Content -Path $path | ConvertTo-SecureString
$global:cred = New-Object System.Management.Automation.PSCredential ($LogID, $global:password)
}

function Connect($NodeIP){

$global:session = New-PSSession -ComputerName $NodeIP -Credential $global:cred

}

InitPassword $path $LogID

Connect $CLUIP

#searches on the cluster for the node owner of the specific VM

$OwnerInf = Invoke-Command -Session $global:session -ScriptBlock {
$grClu = Get-ClusterGroup | where {$_.Name -eq "-" }
$OwnerNode = $grClu.OwnerNode

return $OwnerNode
}

Get-PSSession | Remove-PSSession

$NodeName=$OwnerInf.NodeName

if($NodeName -eq "NODE1"){
Connect $Node1IP}

if($NodeName -eq "NODE2"){
Connect $Node2IP}

if($NodeName -eq "NODE3"){
Connect $Node3IP}

if($NodeName -eq "NODE4"){
Connect $Node4IP}

if($args[0] -eq "stop"){
Invoke-Command -Session $global:session -ScriptBlock {Stop-VM -VMName "-" -force }}
else{
Invoke-Command -Session $global:session -ScriptBlock {Start-vm -VMName "-" }}

Get-PSSession | Remove-PSSession