# get-novnc.ps1
# Downloads the noVNC web client and installs its assets into the embedded
# static directory so they get baked into the single web-vnc binary.
#
# Usage (from repo root):  .\scripts\get-novnc.ps1
# Optionally pass a version: .\scripts\get-novnc.ps1 -Version v1.4.0
param(
  [string]$Version = "v1.4.0"
)

$ErrorActionPreference = "Stop"
$repoRoot = Resolve-Path (Join-Path $PSScriptRoot "..")
$staticDir = Join-Path $repoRoot "internal\server\static"
New-Item -ItemType Directory -Force -Path $staticDir | Out-Null

$work = Join-Path $env:TEMP "webvnc-novnc-$([guid]::NewGuid())"
New-Item -ItemType Directory -Force -Path $work | Out-Null
try {
  $archive = Join-Path $work "novnc.tar.gz"
  $url = "https://github.com/novnc/noVNC/archive/refs/tags/$Version.tar.gz"
  Write-Host "Downloading noVNC $Version from $url"
  Invoke-WebRequest -Uri $url -OutFile $archive -UseBasicParsing

  Write-Host "Extracting..."
  tar -xzf $archive -C $work
  $extracted = Get-ChildItem -Directory -Path $work | Where-Object { $_.Name -like "noVNC-*" } | Select-Object -First 1
  if (-not $extracted) { throw "Extraction produced no noVNC-* directory" }

  # Copy noVNC assets, but keep our custom vnc.html wrapper intact.
  foreach ($sub in @("core","app","vendor","utils")) {
    $src = Join-Path $extracted.FullName $sub
    if (Test-Path $src) {
      Copy-Item -Path $src -Destination $staticDir -Recurse -Force
      Write-Host "  installed $sub/"
    }
  }
  # Optionally keep noVNC's own page under a different name for reference.
  if (Test-Path (Join-Path $extracted.FullName "vnc.html")) {
    Copy-Item -Path (Join-Path $extracted.FullName "vnc.html") -Destination (Join-Path $staticDir "novnc-original.html") -Force
    Write-Host "  copied noVNC vnc.html -> novnc-original.html (our vnc.html stays)"
  }
  Write-Host "Done. Rebuild web-vnc to embed the new client:  go build -o web-vnc.exe .\cmd\web-vnc"
}
finally {
  Remove-Item -Path $work -Recurse -Force -ErrorAction SilentlyContinue
}