Fallback from Pilot to Production if 0 packages have been found

[stephannn]

Hi,
I would like to know if it is possible to change the function to a fallback scenario so that if 0 BIOS packages have been found for Pilot, it switches back to Production:

I had to change the Get-BIOSPackages function; Changed the url query and the return value part

function Get-BIOSPackages {
		param (
			[parameter(Mandatory = $true, HelpMessage = "Specify the computer details object from Get-ComputerDetails function.")]
			[ValidateNotNullOrEmpty()]
			[PSCustomObject]$InputObject
		)
		
		try {
			# Retrieve BIOS packages but filter out matches depending on script operational mode
			switch ($OperationalMode) {
				"Production" {
					if ($Script:PSCmdlet.ParameterSetName -like "XMLPackage") {
						Write-CMLogEntry -Value " - Reading XML content logic file BIOS package entries" -Severity 1
						$Packages = (([xml]$(Get-Content -Path $XMLPackageLogicFile -Raw)).ArrayOfCMPackage).CMPackage | Where-Object {
							$_.Name -notmatch "Pilot" -and $_.Name -notmatch "Legacy" -and $_.Name -match $Filter -and $_.Description -match $InputObject.SystemSKU
						}
					} else {
						Write-CMLogEntry -Value " - Querying AdminService for BIOS package instances" -Severity 1
						$Packages = Get-AdminServiceItem -Resource "/SMS_Package?`$filter=contains(Name,'$($Filter)') and contains(Description,'$($InputObject.SystemSKU)')" | Where-Object {
							$_.Name -notmatch "Pilot" -and $_.Name -notmatch "Retired"
						}
					}
					
				}
				"Pilot" {
					if ($Script:PSCmdlet.ParameterSetName -like "XMLPackage") {
						Write-CMLogEntry -Value " - Reading XML content logic file BIOS package entries" -Severity 1
						$Packages = (([xml]$(Get-Content -Path $XMLPackageLogicFile -Raw)).ArrayOfCMPackage).CMPackage | Where-Object {
							$_.Name -match "Pilot" -and $_.Name -match $Filter -and $_.Description -match $InputObject.SystemSKU
						}
					} else {
						Write-CMLogEntry -Value " - Querying AdminService for BIOS package instances" -Severity 1
						$Packages = Get-AdminServiceItem -Resource "/SMS_Package?`$filter=contains(Name,'$($Filter)') and contains(Description,'$($InputObject.SystemSKU)')" | Where-Object {
							$_.Name -match "Pilot"
						}
					}
				}
			}
			
			# Handle return value
			if ($Packages -ne $null) {
				Write-CMLogEntry -Value " - Retrieved a total of '$(($Packages | Measure-Object).Count)' BIOS packages from $($Script:PackageSource) matching operational mode: $($OperationalMode)" -Severity 1
				return $Packages
			} elseif ($Packages -eq $null -and $OperationalMode -eq "Pilot") {
				Write-CMLogEntry -Value " - Retrieved a total of '0' BIOS packages from $($Script:PackageSource) matching operational mode: $($OperationalMode)" -Severity 1
				return $Packages
			} else {
				Write-CMLogEntry -Value " - Retrieved a total of '0' BIOS packages from $($Script:PackageSource) matching operational mode: $($OperationalMode)" -Severity 3
				
				# Throw terminating error
				$ErrorRecord = New-TerminatingErrorRecord -Message ([string]::Empty)
				$PSCmdlet.ThrowTerminatingError($ErrorRecord)
			}
		} catch [System.Exception] {
			Write-CMLogEntry -Value " - An error occurred while calling $($Script:PackageSource) for a list of available BIOS packages. Error message: $($_.Exception.Message)" -Severity 3
			
			# Throw terminating error
			$ErrorRecord = New-TerminatingErrorRecord -Message ([string]::Empty)
			$PSCmdlet.ThrowTerminatingError($ErrorRecord)
		}
	}

and later called it just in the script like that:
# Retrieve available BIOS packages from admin service
$BIOSPackages = Get-BIOSPackages -InputObject $ComputerData

	if(!($BIOSPackages) -and ($OperationalMode -eq 'Pilot')){
		Write-CMLogEntry -Value "No Pilot BIOS package found, switching to Production Mode" -Severity 1
		$OperationalMode = "Production"
		$BIOSPackages = Get-BIOSPackages -InputObject $ComputerData
	}