# Poke@home quick start.  Generated 2026-09-15 21:12:18Z by the box.
# Read this before running it:  https://franksriracha.zip/start.ps1
#
# Clones https://github.com/HughMungis/poke-at-home into .\poke-at-home, checks your Python
# and your ROM, and prints the command to start contributing. No admin rights, nothing
# installed system-wide, and it does not start donating on its own.
$ErrorActionPreference = 'Stop'

Write-Host ''
Write-Host "  Poke@home - setting up in $((Get-Location).Path)\poke-at-home"
Write-Host ''

$py = $null
foreach ($c in @('python','python3','py')) {
  $cmd = Get-Command $c -ErrorAction SilentlyContinue
  if ($cmd) {
    $v = & $c -c 'import sys; print(1 if sys.version_info[:2] >= (3,9) else 0)' 2>$null
    if ($v -eq '1') { $py = $c; break }
  }
}
if (-not $py) {
  Write-Host '  Python 3.9+ is required and was not found. Install it and re-run.' -Foreground Red
  exit 1
}
Write-Host "  python: $(& $py -V 2>&1)"

if (-not (Get-Command git -ErrorAction SilentlyContinue)) {
  Write-Host '  git is required and was not found.' -Foreground Red
  exit 1
}

if (Test-Path 'poke-at-home\.git') {
  Write-Host '  updating the existing checkout...'
  git -C 'poke-at-home' pull --ff-only
} else {
  Write-Host '  cloning https://github.com/HughMungis/poke-at-home ...'
  git clone --depth 1 'https://github.com/HughMungis/poke-at-home.git' 'poke-at-home'
}
Set-Location 'poke-at-home'

# The ROM is yours and is never distributed. Checked by hash: a wrong revision scores
# perfectly normally and measures a different game.
$rom = $null
foreach ($p in @('PokemonRed.gb','repo\PokemonRed.gb')) {
  if (Test-Path $p) { $rom = $p; break }
}
if (-not $rom) {
  Write-Host ''
  Write-Host '  NEXT STEP - you need to supply a Pokemon Red ROM.' -Foreground Yellow
  Write-Host '  None is included here and none ever will be; it is copyrighted. Dump your own'
  Write-Host '  cartridge, then put the file at:'
  Write-Host "      $((Get-Location).Path)\PokemonRed.gb"
  Write-Host '  It must be 1,048,576 bytes, SHA1 ea9bcae617fdf159b045185467ae58b2e4a48b9a'
  Write-Host ''
  Write-Host '  Then re-run this command and it will finish the setup.'
  exit 0
}
Write-Host "  rom: $rom"

Write-Host ''
Write-Host '  checking this client is current...'
& $py contrib\worker.py --check

Write-Host ''
# !! NO `cd` HERE, unlike start.sh. `iex (irm ...)` runs in the CALLER's scope, so the
# Set-Location above really did move this session into poke-at-home -- telling them to cd
# again would fail with a path error on the very first command they type. The sh version
# runs in a subshell (curl | sh), the parent shell never moves, and its `cd` IS correct.
Write-Host "  Setup done. You are now in $((Get-Location).Path)"
Write-Host '  To contribute one unit and see how it goes:'
Write-Host ''
Write-Host "      $py contrib\worker.py eval --once"
Write-Host ''
Write-Host '  That takes a single job, reports numbers, and stops. Nothing runs in the'
Write-Host '  background, and nothing was registered on your behalf.'
Write-Host ''