Powershell to restart a service running longer than - powershell

Question

I'm trying to write a powershell script that will:
Restart a service if it has been running more than 1 hour
Leave it alone if less than 1 hour
Start it if it's in the stopped state.
I currently have the following below but when it comes to adding extra variables and if statements I'm terrible. This script works very well, but I can't get it to restart, only start/stop seem to work.
Get-Service "Print Spooler" |
Where StartTime -lt (Get-Date).AddMinutes(-60) |
Stop-Service

Answer 1

I'd suggest a variable for this:
# for debugging
$PSDefaultParameterValues['*Service:Verbose'] = $true
$svc = Get-Service -Name Spooler
if ($svc.Status -eq 'stopped') {
$svc | Start-Service
} elseif ($svc.StartTime -lt (Get-Date).AddHours(-1)) {
$svc | Stop-Service -PassThru | Start-Service
} else {
'Print Spooler is running and StartTime is within the past hour!'
}
# other logic goes here

Answer 2

StartTime doesn't appear to be a property of the ServiceController class that Get-Service returns on my system. Neither is the service's process ID, absurdly enough. That's infuriatingly poor design, but so it goes. So, I'd use CIM/WMI to get the process ID to determine when the service started.
$Service = Get-Service "Print Spooler"
$ServiceStartTime = (Get-CimInstance -ClassName Win32_Service -Filter "Name = '$($Service.Name)'" -Property ProcessId | ForEach-Object { Get-Process -Id $_.ProcessId }).StartTime
# If services has been running for an hour, stop it
if (($Service.Status -eq 'Running') -and ($ServiceStartTime -lt (Get-Date).AddHours(-1))) {
Stop-Service $Service
}
# If service isn't running, start it
if ($Service.Status -eq 'Stopped') {
Start-Service $Service
}