<#
.SYNOPSIS
    Removes the OtOpcUaFocasHost Windows service.

.DESCRIPTION
    Companion to Install-FocasHost.ps1. Stops + unregisters the service via NSSM.
    Idempotent — succeeds silently if the service doesn't exist.

.EXAMPLE
    .\Uninstall-FocasHost.ps1
#>
[CmdletBinding()]
param(
    [string]$ServiceName = 'OtOpcUaFocasHost',
    [string]$NssmPath = 'C:\Program Files\nssm\nssm.exe'
)

$ErrorActionPreference = 'Stop'

$svc = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue
if (-not $svc) { Write-Host "Service '$ServiceName' not present — nothing to do."; return }

if (-not (Test-Path $NssmPath)) { throw "nssm.exe not found at '$NssmPath'." }

& $NssmPath stop   $ServiceName confirm | Out-Null
& $NssmPath remove $ServiceName confirm | Out-Null
Write-Host "Removed '$ServiceName'."
