log.ps1

function Write-Out {
    param(
        [Parameter(Mandatory = $true, Position = 0)]
        [string]$Message,
        [string]$Type = "INFO",
        [switch]$LogOnly,
        [switch]$ForceWriteLog,
        [Parameter(ValueFromRemainingArguments = $true)]
        $highlighted
    )


    $fullMessage = $Message
    $printed = $false
    if ($Message -contains '%s') {
        $fullMessage = ""
        $splittedMessage = $Message -split '%s'
        # print directly if not colored log type and not log only
        for ($i = 0; $i -lt $splittedMessage.Length; $i++) {
            if ($Type -notmatch $RGX_COLORED_LOG_TYPES -and -not $LogOnly) {
                Write-Host $splittedMessage[$i] -NoNewline
            }
            $fullMessage += $splittedMessage[$i]
            if ($i -lt $highlighted.Count) {
                if ($Type -notmatch $RGX_COLORED_LOG_TYPES -and -not $LogOnly) {
                    Write-Host $highlighted[$i] -ForegroundColor Cyan -NoNewline
                }
                $fullMessage += $highlighted[$i]
            }
        }

        # new line because of -NoNewline
        if ($Type -notmatch $RGX_COLORED_LOG_TYPES -and -not $LogOnly) {
            Write-Host "`r"
            $printed = $true
        }

    }

    # print colored if colored log type and not log only
    if (-not $LogOnly) {
        switch ($Type) {
            'SYSTEM' {
                Write-Host $fullMessage -ForegroundColor Green
            }
            'WARN' {
                Write-Host $fullMessage -ForegroundColor Yellow
            }
            'ERROR' {
                Write-Host $fullMessage -ForegroundColor Red
            }
            default {
                if (-not $printed) {
                    Write-Host $fullMessage
                }
            }
        }
    }

    $LOG_TEMP.Add("$(Get-Date -Format "dd-MM-yyyy HH:mm:ss") [$Type] $fullMessage") | Out-Null

    if ($LOG_TEMP.Count -gt 30 -or $ForceWriteLog) {
        $LOG_TEMP | Out-File -FilePath $LOG_FILE -Append
        $LOG_TEMP.Clear()
    }
}