<#
.SYNOPSIS
  Runs build\ue_export_kit.py through the Unreal editor commandlet (no window, no GPU): dumps the Modular SciFi
  Season 1 Starter Bundle (meshes as FBX, textures as PNG, material and demo-map descriptions as JSON) into
  models\anchorage\kit_export. Read-only for the Unreal project.

.EXAMPLE
  powershell -NoProfile -ExecutionPolicy Bypass -File build\ue_export_kit.ps1
  powershell -NoProfile -ExecutionPolicy Bypass -File build\ue_export_kit.ps1 -Do maps -Maps SciFi_INT_EX1
#>
[CmdletBinding()]
param(
    [string]$Do = 'meshes,materials,textures,maps',
    [string]$Maps = '',
    [string]$Root = '/Game/StarterBundle',
    [string]$Out = '',
    # skeletal meshes need a render device to export (2026-10-21): -Render runs the commandlet on the GPU, offscreen
    [switch]$Render
)
$ErrorActionPreference = 'Stop'
$Here = $PSScriptRoot
$Uproject = 'D:\HADAL - The Descent\TheDescentUE\TheDescent.uproject'
$EditorCmd = 'E:\Tools\UE_5.8\Engine\Binaries\Win64\UnrealEditor-Cmd.exe'
$Script = (Join-Path $Here 'ue_export_kit.py').Replace('\', '/')
if (-not $Out) { $Out = Join-Path (Split-Path -Parent $Here) 'kit_export' }
New-Item -ItemType Directory -Force -Path $Out | Out-Null
$LogFile = Join-Path $Out 'ue_export_last.log'

$env:UE_SDKS_ROOT = 'D:\HADAL - The Descent\.tools\AutoSDK'
$env:KIT_OUT = $Out.Replace('\', '/')
$env:KIT_ROOT = $Root
$env:KIT_DO = $Do
$env:KIT_MAPS = $Maps

$rhi = if ($Render) { @('-AllowCommandletRendering', '-RenderOffscreen') } else { @('-nullrhi') }
$argList = @(
    ('"' + $Uproject + '"'), '-run=pythonscript', ('-script="' + $Script + '"'),
    '-unattended', '-nosplash') + $rhi + @('-nosound', '-NoLiveCoding',
    ('-abslog="' + $LogFile + '"')
)
$sw = [System.Diagnostics.Stopwatch]::StartNew()
$proc = Start-Process -FilePath $EditorCmd -ArgumentList $argList -PassThru -WindowStyle Hidden
$proc.WaitForExit()
$sw.Stop()
$lines = Get-Content $LogFile -ErrorAction SilentlyContinue
$lines | Where-Object { $_ -match '\[kit\]' } | ForEach-Object { $_ -replace '^\[[0-9.:\-]+\]\[\s*\d+\]', '' } | ForEach-Object { Write-Host $_ }
$done = $lines | Where-Object { $_ -match '\[kit\] \+\s*[0-9.]+s\s+DONE' }
$secs = [math]::Round($sw.Elapsed.TotalSeconds, 1)
if ($done) { Write-Host ("KIT EXPORT DONE  exit={0}  {1}s" -f $proc.ExitCode, $secs); exit 0 }
Write-Host ("KIT EXPORT FAIL  exit={0}  {1}s  log={2}" -f $proc.ExitCode, $secs, $LogFile)
exit 1