# Build a standalone Windows exe (no Python install needed on target PCs).
# Output: host\dist\send_sysinfo.exe

$ErrorActionPreference = "Stop"
$here = Split-Path -Parent $MyInvocation.MyCommand.Path
Set-Location $here

$pyCandidates = @(
  "python",
  (Join-Path $env:USERPROFILE "AppData\Local\Programs\Python\Python312\python.exe"),
  (Join-Path $env:USERPROFILE "AppData\Local\Programs\Python\Python311\python.exe")
)
$py = $null
foreach ($c in $pyCandidates) {
  $cmd = Get-Command $c -ErrorAction SilentlyContinue
  if ($cmd) { $py = $cmd.Source; break }
  if (Test-Path $c) { $py = $c; break }
}
if (-not $py) { throw "Python required only on the build machine." }

& $py -m pip install -q pyinstaller psutil pyserial nvidia-ml-py
& $py -m PyInstaller --noconfirm --clean --onefile --console `
  --name send_sysinfo `
  --hidden-import serial.tools.list_ports `
  --hidden-import psutil `
  --collect-all nvidia_ml_py `
  .\send_sysinfo.py

if (-not (Test-Path ".\dist\send_sysinfo.exe")) {
  throw "Build failed: dist\send_sysinfo.exe missing"
}
Copy-Item ".\dist\send_sysinfo.exe" ".\send_sysinfo.exe" -Force
Write-Host "OK -> $here\send_sysinfo.exe"
Write-Host "Also -> $here\dist\send_sysinfo.exe"