[PRTG] Monitor Expiration Date

Param([string]$Type,[string]$ExpirationDate)

[System.Threading.Thread]::CurrentThread.CurrentCulture = "de-DE"

$DateDifference = New-TimeSpan -Start (Get-Date) -End $ExpirationDate
$Days = $DateDifference.Days
$Hours = $DateDifference.Hours
$Minutes = $DateDifference.Minutes

$DaysExp = [System.Math]::Round($DateDifference.TotalDays * -1,0)
$HoursExp = [System.Math]::Round($Hours * -1,0)
$MinutesExp = [System.Math]::Round($Minutes * -1,0)

$MessageExpired = ("{0} seit {1} Minuten, {2} Stunden und {3} Tagen abgelaufen!" -f $Type,$MinutesExp,$HoursExp,$DaysExp)

if($DateDifference.TotalDays -gt 0){ $Message = ( "{0} wird in {1} Tage(n), {2} Stunde(n) und {3} Minute(n) ablaufen." -f $Type,$Days,$Hours,$Minutes ) }
if($DateDifference.TotalDays -le 0){ $Message = ("{0} wird in {1} Stunde(n) und {2} Minute(n) ablaufen." -f $Type,$Hours,$Minutes );$Days = 0; }
if($DateDifference.TotalHours -le 0 -and $Days -le 0){ $Message = ("{0} wird in {1} Minute(n) ablaufen." -f $Type,$Minutes ); $Days = 0; $Hours = 0;}
if($DateDifference.TotalMinutes -le 0) { $Message = $MessageExpired; $Minutes = 0; }

Write-Host Write-Host @"
<PRTG>
  <result>
    <channel>Tage</channel>
    <value>
    $([System.Math]::Round($DateDifference.TotalDays,0))
    </value>
    <showChart>1</showChart>
    <showTable>1</showTable>
    <Float>1</Float>
    <DecimalMode>All</DecimalMode>
    <unit>Custom</unit>
    <CustomUnit>Days</CustomUnit>
    <mode>Absolute</mode>
  </result>
  <result>
    <channel>Stunden</channel>
    <value>$([System.Math]::Round($DateDifference.TotalHours,0))</value>
    <showChart>1</showChart>
    <showTable>1</showTable>
    <Float>1</Float>
    <DecimalMode>All</DecimalMode>
    <unit>TimeHours</unit>
    <mode>Absolute</mode>
  </result>
  <result>
    <channel>Minuten</channel>
    <value>$([System.Math]::Round($DateDifference.TotalMinutes,0))</value>
    <showChart>1</showChart>
    <showTable>1</showTable>
    <Float>1</Float>
    <unit>CustomUnit</unit>
    <customunit>Minutes</customunit>
    <mode>Absolute</mode>
    <DecimalMode>All</DecimalMode>
  </result>
  <Text>$Message</Text>
</PRTG>
"@;