# Deploy the shim onto the game VM: stop the game, keep the original binkw32.dll as
# binkw32_real.dll, drop in the proxy + config, relaunch.
#   powershell -ExecutionPolicy Bypass -File deploy.ps1 [-Dist Z:\shim\dist] [-NoLaunch]
# If -Dist is on an unmapped drive, the share is mapped using -ShareUser/-SharePass
# (or env RELAB_USER / RELAB_PASS). Credentials are never stored here.
param(
    [string]$Dist      = 'Z:\shim\dist',
    [string]$GameDir   = 'C:\SOTS',
    [string]$Share     = '\\192.168.10.138\re-lab',
    [string]$ShareUser = $env:RELAB_USER,
    [string]$SharePass = $env:RELAB_PASS,
    [string]$Task      = 'SOTS',
    [switch]$NoLaunch
)
$ProgressPreference = 'SilentlyContinue'
$ErrorActionPreference = 'Stop'

if (-not (Test-Path $Dist)) {
    $drive = $Dist.Substring(0, 2)
    if ($SharePass) { net use $drive $Share /user:$ShareUser $SharePass | Out-Null }
    if (-not (Test-Path $Dist)) { throw "cannot reach $Dist (share not mapped; pass -ShareUser/-SharePass)" }
}
$src = Join-Path $Dist 'binkw32.dll'
if (-not (Test-Path $src)) { throw "no binkw32.dll in $Dist" }

$exe  = 'Sword of the Stars'
$cur  = Join-Path $GameDir 'binkw32.dll'
$real = Join-Path $GameDir 'binkw32_real.dll'

$p = Get-Process -Name $exe -ErrorAction SilentlyContinue
if ($p) { Write-Output "stopping $exe (pid $($p.Id))"; $p | Stop-Process -Force; Start-Sleep -Seconds 3 }

# First deploy: the file in place is the original. A proxy is recognisable by its forwarder strings.
$isProxy = (Get-Content -Path $cur -Raw) -match 'binkw32_real\.'
if (-not (Test-Path $real)) {
    if ($isProxy) { throw "$cur is already a proxy and $real is missing - restore the original first" }
    Copy-Item $cur $real
    Write-Output "backed up original -> $real"
}

Copy-Item $src $cur -Force
$cfg = Join-Path $GameDir 'shim.cfg'
if (-not (Test-Path $cfg)) { Copy-Item (Join-Path $Dist 'shim.cfg') $cfg }   # keep operator edits
$id = Join-Path $Dist 'BUILD_ID'
if (Test-Path $id) { Write-Output "deployed build $(Get-Content $id)" }

if (-not $NoLaunch) {
    schtasks /Run /TN $Task | Out-Null
    Start-Sleep -Seconds 5
    $p = Get-Process -Name $exe -ErrorAction SilentlyContinue
    if ($p) { Write-Output "launched $exe (pid $($p.Id))" } else { Write-Warning "$exe not running 5 s after launch" }
}