param (
    [Parameter(Mandatory=$true, Position=0)]
    [string]$newCertname
)

$confPath = "C:\ProgramData\PuppetLabs\puppet\etc\puppet.conf"
$sslPath = "C:\ProgramData\PuppetLabs\puppet\etc\ssl"

if (-not (Test-Path -Path $confPath)) {
    Write-Host "Path does not exist: $confPath"
    Exit
}

# Update the certname in puppet.conf
(Get-Content -Path $confPath) | ForEach-Object {
    if ($_ -match "^certname\s*=") {
        $_ -replace "certname\s*=.*", "certname = $newCertname"
    } else {
        $_
    }
} | Set-Content -Path $confPath

# Remove the SSL folder
if (Test-Path -Path $sslPath -PathType Container) {
    Remove-Item -Path $sslPath -Recurse -Force
}

# Reload Puppet service
Stop-Service -Name puppet
Start-Sleep -Seconds 10
Start-Service -Name puppet