Update PowerShell Script to Check Remote Services - powershell

Question

I am working on a server validation script that runs via PowerShell, and reaches out to collect remote machine information (pulls the list of servers from a text file), such as server uptime and pending reboot. It takes the information, places it in a CSV file and posts it to a HTML (Results) document.
My ask: I'm trying to reach out to these servers (contained on the .txt file) to validate that certain services are in the running state, and if they are, post the status as 'Running' and if not (else), post as 'Not Running'.
Example of getting the list of servers:
$title = 'Important! Please Read'
$message = 'Is this validation going to run against production servers?'
$choice = #(
[System.Management.Automation.Host.ChoiceDescription]::new(
'&Yes', 'This will execute against Production servers' # => This is help message
)
[System.Management.Automation.Host.ChoiceDescription]::new(
'&No', 'This will execute against Non-Production servers' # => This is help message
)
)
$defaultCoice = 0 # => No
$userinput = $host.UI.PromptForChoice($title, $message, $choice, $defaultCoice)
$prodserverlist = if($userinput -eq 0) {
Get-Content '\\networkshare\PostPatchingValidation\ServerListProd.txt'
}
else {
Get-Content '\\networkshare\PostPatchingValidation\ServerListDev.txt'
}
Example of Check Uptime:
Function Uptime($comp){
function WMIDateStringToDate($Bootup) {
[System.Management.ManagementDateTimeconverter]::ToDateTime($Bootup)
}
$NameSpace = "Root\CIMV2"
$wmi = [WMISearcher]""
$wmi.options.timeout = '0:0:10' #set timeout to 10 seconds
$query = 'Select * from Win32_OperatingSystem'
$wmi.scope.path = "\\$comp\$NameSpace"
$wmi.query = $query
Try{
$wmiresult = $wmi.Get()
#$wmiresult
foreach ($wmioutput in $wmiresult){
$Bootup = $wmioutput.LastBootUpTime
$LastBootUpTime = WMIDateStringToDate($Bootup)
$now = Get-Date
$Reporttime = $now - $lastBootUpTime
$d = $Reporttime.Days
$h = $Reporttime.Hours
$m = $Reporttime.Minutes
$a = "Up for: {0} Days, {1} Hours, {2:N0} Minutes" -f $d,$h,$m
return $a
}
}
Example of Posting results to CSV:
foreach($comp in $prodserverlist){
$i++
$ErrorActionPreference = "SilentlyContinue"
Write-Progress -Activity "Server Health Check " -Status ("Checking Server : {0}" -f $comp) -PercentComplete ($i/$prodserverlist.count*100) -Id 0
$ErrorActionPreference = "Continue"
#region Var_Nulling :p
$autoservices= $null
$Reporttimestatus = $null
$service = $null;
$services = $null;
$totalfailednew = $null
#endregion
$Reporttimestatus = uptime -comp $comp
# $services = Get-Service -comp $comp
$pd = PendingReboot $comp
$newobj = $null
$newobj = new-object psobject
$newobj | add-member -membertype noteproperty -name "Server" -value $comp
$newobj | add-member -membertype noteproperty -name "Uptime" -value $Reporttimestatus #-PassThru
$newobj | add-member -membertype noteproperty -name "PendingReboot" -value $pd
$newobj | add-member -membertype noteproperty -name "ServiceCheck" -value $Reporttimestatus
$newobj | ConvertTo-Csv -NoTypeInformation | Out-File "\\networkshare\PostPatchingValidation\result.csv" -Append
$htmlserver = $newobj.Server
$htmluptime = $newobj.Uptime
$htmlpendingreboot = $newobj.PendingReboot
$htmlservicecheck = $newobj.ServiceCheck
$current = "
<tr bgcolor=#CCCCCC>
<td width='14%' align='center'>$htmlserver</td>
<td width='23%' align='center'>$htmluptime</td>
<td width='12%' align='center'>$htmlpendingreboot</td>
<td width='12%' align='center'></td>
</tr>
"
$total += $current
#$newobj | ConvertTo-html -Fragment
#$newobj | ConvertTo-html -Fragment -CssUri \\networkshare\PostPatchingValidation\Style.css | Out-File \\networkshare\PostPatchingValidation\result.html -Append
}
$HTMLEnd = #"
</div>
</body>
</html>
"#
$MainHtml= $html + $total + $HTMLEnd
$MainHtml | Out-File "\\networkshare\PostPatchingValidation\result.html"
Final Screenshot of HTML Document: