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

    [Parameter(Mandatory = $true)]
    [string]$Architecture,

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

$ErrorActionPreference = "Stop"

if (Test-Path (Join-Path $InstallDir "include\\pandaFramework.h")) {
    Write-Host "MetaCore Panda3D SDK already prepared at $InstallDir"
    exit 0
}

$installParent = Split-Path -Parent $InstallDir
New-Item -ItemType Directory -Force -Path $installParent | Out-Null

$downloadCacheDir = Join-Path $PSScriptRoot "..\\.metacore\\downloads"
New-Item -ItemType Directory -Force -Path $downloadCacheDir | Out-Null

$installerName = "Panda3D-SDK-$Version-$Architecture.exe"
$installerPath = Join-Path $downloadCacheDir $installerName
$downloadUrl = "https://www.panda3d.org/download/panda3d-$Version/$installerName"

if (-not (Test-Path $installerPath)) {
    Write-Host "MetaCore downloading Panda3D SDK from $downloadUrl"
    & curl.exe -L --fail --output $installerPath $downloadUrl
    if ($LASTEXITCODE -ne 0) {
        throw "MetaCore failed to download Panda3D SDK."
    }
}

if (Test-Path $InstallDir) {
    Remove-Item -Recurse -Force $InstallDir
}

New-Item -ItemType Directory -Force -Path $InstallDir | Out-Null

$installDirFullPath = (Resolve-Path $InstallDir).Path
Write-Host "MetaCore installing Panda3D SDK into $installDirFullPath"

$installerLaunchPath = Join-Path $downloadCacheDir ("launch-" + $installerName)
Copy-Item -Force $installerPath $installerLaunchPath

$installProcess = Start-Process -FilePath $installerLaunchPath -ArgumentList @("/S", "/D=$installDirFullPath") -Wait -PassThru
if ($installProcess.ExitCode -ne 0) {
    throw "MetaCore Panda3D installer failed with exit code $($installProcess.ExitCode)."
}

Remove-Item -Force $installerLaunchPath -ErrorAction SilentlyContinue

if (-not (Test-Path (Join-Path $installDirFullPath "include\\pandaFramework.h"))) {
    throw "MetaCore Panda3D installation finished but expected headers were not found."
}

Write-Host "MetaCore Panda3D SDK is ready at $installDirFullPath"