# patcher.ps1
# Script en PowerShell para traducir Indiana Jones Last Crusade versión Steam al español

$steamlessApp = "${env:UserProfile}\Downloads\Steamless.v3.1.0.5.-.by.atom0s\Steamless.CLI.exe"
$steamGameFolder = "${env:ProgramFiles(x86)}\Steam\steamapps\common\Indiana Jones and the Last Crusade"
$steamPathFileName = "${steamGameFolder}\Indiana Jones and the Last Crusade.exe"

$copiedFileName = "${PWD}\Indiana Jones and the Last Crusade.exe"
$unpackedFileName = "${PWD}\Indiana Jones and the Last Crusade.exe.unpacked.exe"

$firstNewLflFileName = "${PWD}\INDY3\00.LFL"
$secondNewLflFileName = "${PWD}\INDY3\01.LFL"
$outputFileName = "${PWD}\Last Crusade Spanish.exe"

$skip = 162056
$count = 6295
$offset = 59359

$messageOffset = 144421
$messageBytes = [byte[]](0xa8) + [System.Text.Encoding]::ASCII.GetBytes("Seguro que quieres salir? (S/N)S") + [byte[]](0x00,0x00,0x00,0x00)

try {
    Copy-Item "$steamPathFileName" "$copiedFileName"
    & "${steamlessApp}" "${copiedFileName}"

    $patchedGameData = [System.IO.File]::ReadAllBytes($unpackedFileName)
    $firstNewLflData = [System.IO.File]::ReadAllBytes($firstNewLflFileName)
    $secondNewLflData = [System.IO.File]::ReadAllBytes($secondNewLflFileName)

    $sizeBytes = [BitConverter]::GetBytes($secondNewLflData.Length)

    if ($firstNewLflData.Length -ne $count) {
        Write-Host "Error: " + $firstNewLflFileName + " should be exactly " + $count + " bytes in length."
        exit
    }

    # Sobreescribir dentro el nuevo archivo 00.LFL
    $firstNewLflData.CopyTo($patchedGameData, $skip)
    # Actualizar el checksum que es el size del archivo 01.LFL
    for ($i = 0; $i -lt $sizeBytes.Length; $i++) {
        $patchedGameData[$offset + $i] = $sizeBytes[$i]
    }

    # Traduce mensaje de salir
    [Array]::Copy($messageBytes, 0, $patchedGameData, $messageOffset, $messageBytes.Length)

    # Escribir el resultado
    [System.IO.File]::WriteAllBytes($outputFileName, $patchedGameData)

    # Eliminar archivos intermedios
    Remove-Item "$unpackedFileName"
    Remove-Item "$copiedFileName"

    Write-Host "Listo. Archivo guardado en $outputFileName. No distribuir!"
}
catch {
    Write-Host "Error: $($_.Exception.Message)"
}