# rig45_down.ps1 -- tear down ONLY the PIDs rig45_up.ps1 recorded.
# Deliberately does NOT use Get-Process -Name / Stop-Process by name: a blanket
# name kill once destroyed a live tester session.  If a PID has been recycled to
# a different image, it is skipped.

$ErrorActionPreference = 'Continue'
$scratch = 'C:\Users\EPILECTRIK\AppData\Local\Temp\claude\C--git-bt411\89ab96e9-6cf0-4555-939d-05bf3708745a\scratchpad'
$pidfile = Join-Path $scratch 'rig45_pids.txt'

if (-not (Test-Path $pidfile)) { "no pidfile -- nothing recorded, nothing killed"; exit 0 }

# The console is launched with output redirection, so Start-Process wraps it in a
# cmd.exe shim (-> python.bat -> python).  Kill the recorded PID *and its children*,
# still strictly by PID and only for the images this rig is known to launch.
$targets = @()
foreach ($line in Get-Content $pidfile) {
    $procId = 0
    if (-not [int]::TryParse($line.Trim(), [ref]$procId)) { continue }
    $targets += @(Get-CimInstance Win32_Process -Filter "ParentProcessId=$procId" -ErrorAction SilentlyContinue |
                    Select-Object -ExpandProperty ProcessId)
    $targets += $procId
}
foreach ($procId in ($targets | Select-Object -Unique)) {
    $p = Get-Process -Id $procId -ErrorAction SilentlyContinue
    if (-not $p) { "pid $procId already gone"; continue }
    # Only kill it if it is still one of the images this rig launches.
    if ($p.ProcessName -notin @('btl4','python','cmd','conhost')) {
        "pid $procId is now '$($p.ProcessName)' -- PID recycled, SKIPPING"
        continue
    }
    Stop-Process -Id $procId -Confirm:$false -ErrorAction SilentlyContinue
    Start-Sleep -Milliseconds 300
    if (Get-Process -Id $procId -ErrorAction SilentlyContinue) { "pid $procId ($($p.ProcessName)) DID NOT DIE" }
    else { "killed pid $procId ($($p.ProcessName))" }
}
Remove-Item $pidfile -ErrorAction SilentlyContinue
"teardown complete"