PowerShell Logging Tee Function App -> Windows Event Log && Terminal

Write-PSEventlog

<#

    .EXAMPLE
         Write-PSEventLog @LogParams -EntryType Information -EventId 100 -Message "Starting Installation"
#>

#region SetupLogging
    $LogParams  =@{
        'LogName' = '<LOG NAME: Application|Setup|System|Security>';
        'Source' = '<Your Custom Script Name>'
    }

    if(![System.Diagnostics.EventLog]::SourceExists($LogParams.Source))
    {
        New-EventLog @LogParams
    }

    Function Write-PSEventLog {
        <#
            .SYNOPSIS
                Wrapper function to split Logging to the windows event log and to the terminal
        #>
        param(
            $LogName,
            $Source,
            $EventId,
            $EntryType,
            $Message
        )
        if (-not $PSBoundParameters.ContainsKey('EventID'))
        {
            $PSBoundParameters['EventID'] = "1"
            $PSBoundParameters['Message'] = "[$($(get-PSCallStack)[1].Location)]: $Message"
        }
        if (-not $PSBoundParameters.ContainsKey('EntryType'))
        {
            $PSBoundParameters['EntryType'] = "Information"
        }
        Switch($PSBoundParameters['EntryType'])
        {
            "Error" {
                write-host -ForegroundColor Red $PSBoundParameters['Message']
            }
            "Information" {
                write-host -ForegroundColor Green $PSBoundParameters['Message']
            }
        }
        try{
            Write-EventLog @PsBoundParameters
        }
        catch {
            throw "Error writing to Windows Event Log.  Reason: $($_.Exception.Message)"
        }
    }
#endregion