# Upload frontend build (nested wwwroot) - overwrite index.html, upload new assets, delete old ones
$ErrorActionPreference = "Continue"
$FtpHost="116.198.221.125"; $FtpPort=21; $FtpUser="wenchuanyi"; $FtpPass="r7P^f*v7rFts"
$Dist = "D:\CodeBuddy\Pros\WenChuanyi\frontend\dist"
function NewR($p,$m,$to=90000){ $u="ftp://${FtpHost}:${FtpPort}/"+$p.TrimStart('/'); $r=[System.Net.FtpWebRequest]::Create($u); $r.Method=$m; $r.Credentials=New-Object System.Net.NetworkCredential($FtpUser,$FtpPass); $r.UsePassive=$true; $r.UseBinary=$true; $r.KeepAlive=$false; $r.Timeout=$to; $r }
function GetSizeF($p){
  try{ $r=NewR $p ([System.Net.WebRequestMethods+Ftp]::GetFileSize) 30000; $resp=$r.GetResponse(); $s=$resp.ContentLength; $resp.Close(); return $s }
  catch{ return -1 }
}
function DelF($p){
  try{ $r=NewR $p ([System.Net.WebRequestMethods+Ftp]::DeleteFile); $resp=$r.GetResponse(); try{$resp.Close()}catch{}; Write-Host "DEL $p" }
  catch{ Write-Host "DEL skip $p (not exist or locked)" }
  Start-Sleep -Milliseconds 500
}
function UpF($lp,$rp){
  $want=(Get-Item $lp).Length
  DelF $rp
  Start-Sleep -Seconds 1
  for($i=1;$i -le 4;$i++){
    try{
      $r=NewR $rp ([System.Net.WebRequestMethods+Ftp]::UploadFile) 300000
      $b=[IO.File]::ReadAllBytes($lp); $r.ContentLength=$b.Length
      $s=$r.GetRequestStream(); try{ $s.Write($b,0,$b.Length) } finally { $s.Close() }
      $resp=$r.GetResponse(); try{ $resp.Close() }catch{}
      Start-Sleep -Milliseconds 500
      $after=GetSizeF $rp
      if($after -eq $want){ Write-Host "UP OK $rp ($after bytes)"; return $true }
      Write-Host "SIZE MISMATCH $rp got=$after want=$want"
    }catch{ Write-Host "RETRY($i) $rp : $($_.Exception.Message)" }
    Start-Sleep -Seconds 3
  }
  Write-Host "FAIL $rp"; return $false
}
# upload new dist
$ok=$true
$ok=(UpF "$Dist\index.html" "/wwwroot/wwwroot/index.html") -and $ok
$ok=(UpF "$Dist\assets\index-DmgEpwV6.js" "/wwwroot/wwwroot/assets/index-DmgEpwV6.js") -and $ok
$ok=(UpF "$Dist\assets\index-BjMMI5BR.css" "/wwwroot/wwwroot/assets/index-BjMMI5BR.css") -and $ok
# remove stale old-hash assets
DelF "/wwwroot/wwwroot/assets/index-C2wmSVTP.js"
if($ok){ Write-Host "FE DEPLOY OK" } else { Write-Host "FE DEPLOY PARTIAL" }