Remove inactive systems from system groups

inactiveDevicesSystemGroups.ps1

# Get Devices from Group
$groupID = '61842933b54406680ae461aa'
$groupMembers = Get-JcSdkSystemGroupMember -GroupId $groupID

# Inactivity Threshold in days
$inactivityPeriod = 30
$currentTime = [Xml.XmlConvert]::ToString((get-date), [Xml.XmlDateTimeSerializationMode]::Utc)

# If system is inactive greater than the inactivity period, remove from group
foreach ($system in $groupMembers) {
    $targetSystem = get-jcsdksystem -Id $system.ToId
    $TargetRFCTime = [Xml.XmlConvert]::ToString($($targetSystem.LastContact), [Xml.XmlDateTimeSerializationMode]::Utc)
    $timespan = New-TimeSpan -Start $TargetRFCTime -End $currentTime
    $days = [math]::Round($($timespan.totaldays), 2)
    if ($days -gt $inactivityPeriod) {
        Write-Host "$($targetSystem.displayName) last check in was $days days ago"
        Set-JcSdkSystemGroupMember -Id $targetSystem.Id -GroupId $groupID -Op 'remove'
    }
}