param(
    [Parameter(Mandatory = $true)]
    [string]$GodotExe,

    [Parameter(Mandatory = $true)]
    [string]$MakeNsisExe
)

$ErrorActionPreference = "Stop"
$projectRoot = (Resolve-Path (Join-Path $PSScriptRoot "..\..")).Path
$gameExe = Join-Path $projectRoot "build\windows\Void-Bastion.exe"
$installer = Join-Path $projectRoot "dist\Void-Bastion-Setup-x64.exe"
$installerScript = Join-Path $PSScriptRoot "installer.nsi"

foreach ($requiredFile in @($GodotExe, $MakeNsisExe, $installerScript)) {
    if (-not (Test-Path -LiteralPath $requiredFile -PathType Leaf)) {
        throw "Benötigte Datei fehlt: $requiredFile"
    }
}

New-Item -ItemType Directory -Force -Path (Split-Path $gameExe), (Split-Path $installer) | Out-Null

& $GodotExe --headless --path $projectRoot --export-release "Windows x64" $gameExe
if ($LASTEXITCODE -ne 0 -or -not (Test-Path -LiteralPath $gameExe)) {
    throw "Der Godot-Windows-Export ist fehlgeschlagen."
}

Push-Location $PSScriptRoot
try {
    & $MakeNsisExe $installerScript
    if ($LASTEXITCODE -ne 0 -or -not (Test-Path -LiteralPath $installer)) {
        throw "Die Installer-Erstellung mit NSIS ist fehlgeschlagen."
    }
}
finally {
    Pop-Location
}

$installerFile = Get-Item -LiteralPath $installer
$hash = Get-FileHash -Algorithm SHA256 -LiteralPath $installer
Write-Host "Windows-Installer erfolgreich erstellt:"
Write-Host "  Datei:  $($installerFile.FullName)"
Write-Host "  Größe:  $([math]::Round($installerFile.Length / 1MB, 1)) MiB"
Write-Host "  SHA256: $($hash.Hash)"