# ============================================================================
#  pack-dist.ps1 — assemble a runnable Red Planet 4.12 package into dist\
# ============================================================================
#
#  Collects everything the game needs at run time:
#    - Release\rpl4opt.exe (+ .pdb for crash debugging)
#    - game data from assets\RP411 (AUDIO, GAUGE, VIDEO, INIs, RPL4.RES,
#      TEST.EGG) — but not the arcade launch scripts or the old 4.10 exe
#    - libsndfile-1.dll beside the exe; OpenAL32.dll copied from the system
#      when installed, with oalinst.exe included as the fallback installer
#    - a desktop environ.ini (PAD;KEYBOARD controls, on-screen plasma)
#    - start-windowed.bat and a README
#
#  Usage:  powershell -ExecutionPolicy Bypass -File pack-dist.ps1 [-Zip]
#
param(
    [switch]$Zip
)

$ErrorActionPreference = 'Stop'
$root   = Split-Path -Parent $MyInvocation.MyCommand.Path
$dist   = Join-Path $root 'dist'
$assets = Join-Path $root 'assets\RP411'
$exe    = Join-Path $root 'Release\rpl4opt.exe'

if (-not (Test-Path $exe)) {
    throw "Release\rpl4opt.exe not found - build first (see BUILD.md 2)."
}

# Refuse to touch a dist the game is currently running from.
$running = Get-Process rpl4opt -ErrorAction SilentlyContinue |
    Where-Object { $_.Path -like "$dist\*" }
if ($running) {
    throw "rpl4opt.exe is running from $dist (PID $($running.Id)) - close the game first."
}

Write-Host "Packing into $dist"
if (Test-Path $dist) { Remove-Item -Recurse -Force $dist }
New-Item -ItemType Directory -Force "$dist\SPOOLS" | Out-Null

# --- game binary -----------------------------------------------------------
Copy-Item $exe $dist
$pdb = Join-Path $root 'Release\rpl4opt.pdb'
if (Test-Path $pdb) { Copy-Item $pdb $dist }

# --- game data -------------------------------------------------------------
foreach ($dir in 'AUDIO', 'GAUGE', 'VIDEO') {
    Write-Host "  copying $dir..."
    Copy-Item -Recurse (Join-Path $assets $dir) $dist
}
foreach ($file in 'RPDPL.INI', 'JOYSTICK.INI', 'RPL4.RES', 'TEST.EGG',
                  'libsndfile-1.dll', 'oalinst.exe') {
    Copy-Item (Join-Path $assets $file) $dist
}

# --- OpenAL runtime --------------------------------------------------------
# The exe links OpenAL32.dll (32-bit). Prefer shipping the already-installed
# runtime beside the exe; oalinst.exe covers machines where that misses.
$openal = "$env:WINDIR\SysWOW64\OpenAL32.dll"
if (-not (Test-Path $openal)) { $openal = "$env:WINDIR\System32\OpenAL32.dll" }
if (Test-Path $openal) {
    Copy-Item $openal $dist
    $wrap = Join-Path (Split-Path $openal) 'wrap_oal.dll'
    if (Test-Path $wrap) { Copy-Item $wrap $dist }
    Write-Host "  OpenAL runtime copied from $(Split-Path $openal)"
} else {
    Write-Warning "OpenAL32.dll not found on this system - dist relies on oalinst.exe"
}

# --- desktop configuration -------------------------------------------------
Set-Content -Path "$dist\environ.ini" -Encoding ascii -Value @"
L4CONTROLS=PAD;KEYBOARD
DPLARG=1
L4DPLCFG=RPDPL.INI
L4GAUGE=640x480x16
L4PLASMA=SCREEN
L4MFDSPLIT=1
TARGETFPS=60
"@

Set-Content -Path "$dist\start-windowed.bat" -Encoding ascii -Value @"
@echo off
rem Red Planet 4.12 - desktop prototype (windowed, local test mission)
rem The cockpit canvas is 1920x1080; -res matches it for native 3D.
cd /d "%~dp0"
start rpl4opt.exe -windowed -res 1920 1080 -egg TEST.EGG
"@

Set-Content -Path "$dist\README.txt" -Encoding ascii -Value @"
Red Planet 4.12 - desktop prototype
===================================

Run start-windowed.bat (or: rpl4opt.exe -windowed -res 800 600 -egg TEST.EGG).
No cockpit hardware needed. If there is no sound, run oalinst.exe once.

Controls (XInput controller and/or keyboard):

  Left stick / WASD        joystick
  LT / RT   or  Q / E      left / right pedal
  Right stick Y, PgUp/PgDn throttle (holds position)
  A / Space                joystick trigger
  B / R                    reverse thrust
  DPad / arrow keys        joystick hat (look)
  Start,Back / F1,F2       config buttons

The full pod cockpit comes up in a single window: three green MFDs
across the top, the 3D viewscreen centered with the orange plasma glass
at its left, and the lower MFDs flanking the portrait map. The red
buttons around each MFD and the amber buttons beside the map are the
pod's real button banks: click them with the mouse, and they light up
as the game commands their lamps.
environ.ini options: L4PADFLIP=XY inverts the stick axes, L4MFDSCALE=n
sizes the MFD/map windows (percent, default 50), L4PLASMASCALE=n sets
the plasma pixel size (default 4), L4PLASMAPOS=x,y places the plasma.

Known prototype notes: pods race untextured (the player1-8 skins come
from the presets system, not shipped data), and text drawn on the plasma
glass may appear rotated.

Source: https://gitea.mysticmachines.com/VWE/RP412
"@

# --- summary / optional zip ------------------------------------------------
$size = (Get-ChildItem $dist -Recurse | Measure-Object Length -Sum).Sum
Write-Host ("dist ready: {0:N1} MB" -f ($size / 1MB))

if ($Zip) {
    $zipPath = Join-Path $root 'dist\RedPlanet412-prototype.zip'
    Write-Host "zipping to $zipPath..."
    Compress-Archive -Path "$dist\*" -DestinationPath $zipPath -Force
}