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

    [string]$ReleaseDir = (Get-Location).Path,

    [switch]$OverwriteConfig,

    [switch]$IncludeQtRuntime
)

$ErrorActionPreference = "Stop"

$sdk = (Resolve-Path $SdkRoot).Path
$release = (Resolve-Path $ReleaseDir).Path

$binDir = Join-Path $sdk "bin"
$configDir = Join-Path $sdk "config"
$appConfig = Join-Path $configDir "app_config.json"
$publicKey = Join-Path $configDir "manifest_public_key.pem"

foreach ($path in @($binDir, $appConfig, $publicKey)) {
    if (-not (Test-Path $path)) {
        throw "SDK file is missing: $path"
    }
}

function Test-IsQtRuntimeItem {
    param([System.IO.FileSystemInfo]$Item)

    if ($IncludeQtRuntime) {
        return $false
    }

    if ($Item.PSIsContainer) {
        return $Item.Name -in @(
            "bearer",
            "iconengines",
            "imageformats",
            "platforms",
            "styles",
            "translations"
        )
    }

    return (
        $Item.Name -match '^Qt5.*\.dll$' -or
        $Item.Name -in @(
            "libEGL.dll",
            "libGLESv2.dll",
            "opengl32sw.dll",
            "d3dcompiler_47.dll"
        )
    )
}

Get-ChildItem $binDir -Force | Where-Object {
    -not (Test-IsQtRuntimeItem $_)
} | Copy-Item -Destination $release -Recurse -Force

$targetConfigDir = Join-Path $release "config"
New-Item $targetConfigDir -ItemType Directory -Force | Out-Null

$targetAppConfig = Join-Path $targetConfigDir "app_config.json"
if ((-not (Test-Path $targetAppConfig)) -or $OverwriteConfig) {
    Copy-Item $appConfig $targetAppConfig -Force
} else {
    Write-Host "Keep existing config/app_config.json. Use -OverwriteConfig to replace it."
}

Copy-Item $publicKey (Join-Path $targetConfigDir "manifest_public_key.pem") -Force

Write-Host "SDK files installed to: $release"
Write-Host "Next: edit config/app_config.json, then start Launcher.exe."