function Get-InstalledPackages {
<#
.SYNOPSIS
    Returns a list of package names/versions deployed on the server, whether the installations
    are managed by Chocolatey or Service Fabric.
.PARAMETER ComputerName
    The host name of the server to get installed packages from.
#>
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory = $false)]
        [Alias("server")]
        [string]$ComputerName = "localhost"
    )

    $packages = $null;
    $loglead = (Get-LogLeadName);

    $isLocalFabServer = ($ComputerName -eq "localhost") -and (Test-IsServiceFabricServer);
    $isRemoteFabServer = ($null -ne (Select-AlkamiFabServers $ComputerName));
    if($isLocalFabServer -or $isRemoteFabServer) {
        # Fetch Service Fabric Packages
        Write-Verbose "$loglead Determined $ComputerName is a Service Fabric server.";
        Connect-AlkamiServiceFabricCluster -hostname $ComputerName;
        $packages = (Get-AlkamiServiceFabricApplications -ComputerName $ComputerName);
    } else {
        # Fetch Chocolatey Packages
        Write-Verbose "$loglead Determined $ComputerName is a Chocolatey managed server.";
        $script = {
            $result = (Get-ChocoState -local);

            # Return the results in a map so PS doesn't put needless PSComputerName/RunspaceId properties on every package.
            return @{ Result = $result };
        }
        $packages = (Invoke-Command -ComputerName $ComputerName -ScriptBlock $script).Result;
    }

    return $packages;
}