# Package frontend node_modules for offline development.
# Uses tar -h to dereference pnpm junctions so the archive is self-contained.
param(
    [string]$OutputDir = (Join-Path (Split-Path $PSScriptRoot -Parent) "dist")
)

$ErrorActionPreference = "Stop"
$Root = Split-Path $PSScriptRoot -Parent
$Frontend = Join-Path $Root "frontend-web"
$Archive = Join-Path $OutputDir "frontend-offline-deps.tar.gz"

if (-not (Test-Path (Join-Path $Frontend "node_modules\.pnpm"))) {
    throw "frontend-web/node_modules is missing or incomplete. Run 'pnpm install' in frontend-web first."
}

New-Item -ItemType Directory -Force -Path $OutputDir | Out-Null
if (Test-Path $Archive) { Remove-Item $Archive -Force }

Write-Host "Packaging frontend dependencies..."
Write-Host "  Source: $Frontend"
Write-Host "  Output: $Archive"

$start = Get-Date
tar -czhf $Archive -C $Frontend node_modules package.json pnpm-lock.yaml
$elapsed = ((Get-Date) - $start).TotalSeconds
$sizeMb = [math]::Round((Get-Item $Archive).Length / 1MB, 2)

Write-Host ""
Write-Host "Done in ${elapsed}s — ${sizeMb} MB"
Write-Host ""
Write-Host "Copy to offline machine, then run:"
Write-Host "  scripts\restore-frontend-offline-deps.ps1 -Archive <path-to-archive>"