param(
    [string]$SourceDir = "C:\ipm_binaries",
    [switch]$Force
)

# Copies Windows DLLs from SourceDir to app/ipm/lib/windows.
$dest = Resolve-Path -Path "..\app\ipm\lib\windows"
if (-not (Test-Path $dest)) { New-Item -ItemType Directory -Path $dest -Force | Out-Null }

Write-Host "Copying DLLs from $SourceDir to $dest"
Get-ChildItem -Path $SourceDir -Filter *.dll -File -ErrorAction SilentlyContinue | ForEach-Object {
    $dst = Join-Path $dest $_.Name
    if (Test-Path $dst -and -not $Force) {
        Write-Host "Skipping existing: $($_.Name)"
    } else {
        Copy-Item $_.FullName -Destination $dst -Force
        Write-Host "Copied: $($_.Name)"
    }
}

Write-Host "Done."