param([Parameter(Mandatory = $true)][string]$PackageRoot)
Set-StrictMode -Version 3.0
$ErrorActionPreference = 'Stop'

$root = [IO.Path]::GetFullPath($PackageRoot)
$start = Join-Path $root 'start-sense.bat'
$stop = Join-Path $root 'stop-sense.bat'
$port = [int]$env:SENSE_PORT
$launcher = Start-Process -FilePath 'cmd.exe' -ArgumentList @('/d', '/c', "`"$start`" -SkipMigration") -WorkingDirectory (Split-Path $root -Parent) -WindowStyle Hidden -PassThru
try {
    $ready = $false
    for ($attempt = 0; $attempt -lt 60; $attempt++) {
        $client = New-Object Net.Sockets.TcpClient
        try {
            $task = $client.ConnectAsync('127.0.0.1', $port)
            if ($task.Wait(500) -and $client.Connected) { $ready = $true; break }
        } catch {} finally { $client.Dispose() }
        Start-Sleep -Milliseconds 500
    }
    if (-not $ready) { throw 'start-sense.bat did not open the configured HTTP port.' }
    & $stop
    if ($LASTEXITCODE -ne 0) { throw 'stop-sense.bat failed.' }
    Start-Sleep -Seconds 1
    $probe = New-Object Net.Sockets.TcpClient
    try {
        $task = $probe.ConnectAsync('127.0.0.1', $port)
        if ($task.Wait(500) -and $probe.Connected) { throw 'Sense port is still open after stop-sense.bat.' }
    } catch [Net.Sockets.SocketException] {} finally { $probe.Dispose() }
    Write-Host 'Sense start/stop wrapper smoke passed from an external working directory.'
} finally {
    if (-not $launcher.HasExited) { & taskkill.exe /PID $launcher.Id /T /F | Out-Null }
}