function Write-LFLog {
    param(
        [string]$Message,
        [ValidateSet("low","mid","high","critical")]
        [string]$Severity = "low"
    )

    switch ($Severity) {
        "low"      { $color = "Gray" }
        "mid"      { $color = "Cyan" }
        "high"     { $color = "Yellow" }
        "critical" { $color = "Red" }
    }

    Write-Host "[$Severity] $Message" -ForegroundColor $color
}

Export-ModuleMember -Function Write-LFLog