$ErrorActionPreference = 'Stop'
$project = Split-Path -Parent $PSScriptRoot
Start-Transcript -Path (Join-Path $project 'runtime/startup-api-transfer.log') -Force | Out-Null
$binary = Join-Path $project 'build/linux-arm64/tera-clone-demo-api-startup'
$hash = (Get-FileHash -LiteralPath $binary -Algorithm SHA256).Hash.ToLowerInvariant()
$script = @'
#!/bin/sh
set -eu
stage=/tmp/tera-startup-api-20260909
mkdir -p "$stage"
wget -q -O "$stage/api" http://192.168.0.100:9001/api
echo '__HASH__  '"$stage/api" | sha256sum -c -
backup=/userdata/tera-backups/startup-api-$(date +%Y%m%d-%H%M%S)
mkdir -p "$backup"
cp -p /usr/bin/tera-clone-demo-api "$backup/tera-clone-demo-api"
echo "BACKUP=$backup"
cp "$stage/api" /usr/bin/tera-clone-demo-api.next
chmod 0755 /usr/bin/tera-clone-demo-api.next
rollback() {
  trap - EXIT
  /etc/init.d/S51tera-clone-demo-api stop || true
  cp "$backup/tera-clone-demo-api" /usr/bin/tera-clone-demo-api.restore
  chmod 0755 /usr/bin/tera-clone-demo-api.restore
  mv /usr/bin/tera-clone-demo-api.restore /usr/bin/tera-clone-demo-api
  /etc/init.d/S51tera-clone-demo-api start
  echo STARTUP_API_ROLLED_BACK
}
trap rollback EXIT
/etc/init.d/S51tera-clone-demo-api stop
sleep 2
mv /usr/bin/tera-clone-demo-api.next /usr/bin/tera-clone-demo-api
/etc/init.d/S51tera-clone-demo-api start
ready=0
for n in $(seq 1 30); do
  if wget -q -T 2 -O "$stage/status" http://127.0.0.1:8084/api/v1/auth/login-policy; then ready=1; break; fi
  sleep 1
done
[ "$ready" = 1 ]
sleep 3
/etc/init.d/S51tera-clone-demo-api status
wget -q -T 3 -O "$stage/status" http://127.0.0.1:8084/api/v1/auth/login-policy
cat "$stage/status"
sha256sum /usr/bin/tera-clone-demo-api
sync
trap - EXIT
echo STARTUP_API_DEPLOY_OK
'@
$script = $script.Replace('__HASH__', $hash).Replace("`r`n", "`n") + "`n"
$rule = 'TERA-startup-api-' + [guid]::NewGuid().ToString('N')
$listener = New-Object System.Net.HttpListener
$listener.Prefixes.Add('http://192.168.0.100:9001/')
$serial = New-Object System.IO.Ports.SerialPort 'COM5',115200,'None',8,'One'
try {
  New-NetFirewallRule -DisplayName $rule -Direction Inbound -Action Allow -Protocol TCP -LocalPort 9001 -RemoteAddress 192.168.0.223 | Out-Null
  $listener.Start()
  $serial.Open()
  $serial.WriteLine('wget -q -O /tmp/deploy-startup-api.sh http://192.168.0.100:9001/deploy.sh && sh /tmp/deploy-startup-api.sh')
  $deadline = [DateTime]::UtcNow.AddSeconds(90)
  $output = ''
  $pending = $listener.GetContextAsync()
  while ([DateTime]::UtcNow -lt $deadline) {
    if ($pending.IsCompleted) {
      $context = $pending.GetAwaiter().GetResult()
      if ($context.Request.RemoteEndPoint.Address.ToString() -ne '192.168.0.223') {
        $context.Response.StatusCode = 403
        $context.Response.Close()
      } else {
        $bytes = $null
        switch ($context.Request.Url.AbsolutePath) {
          '/deploy.sh' { $bytes = [Text.Encoding]::UTF8.GetBytes($script) }
          '/api' { $bytes = [IO.File]::ReadAllBytes($binary) }
          default { $context.Response.StatusCode = 404 }
        }
        if ($null -ne $bytes) {
          $context.Response.ContentLength64 = $bytes.Length
          $context.Response.OutputStream.Write($bytes, 0, $bytes.Length)
        }
        $context.Response.Close()
      }
      $pending = $listener.GetContextAsync()
    }
    $chunk = $serial.ReadExisting()
    if ($chunk) { $output += $chunk; Write-Host -NoNewline $chunk }
    if ($output.Contains('STARTUP_API_DEPLOY_OK')) { break }
    Start-Sleep -Milliseconds 100
  }
  if (-not $output.Contains('STARTUP_API_DEPLOY_OK')) { throw 'Deployment did not report success; inspect device console.' }
  if (-not $output.Contains($hash)) { throw 'Deployed hash missing from console output.' }
  Write-Output "VERIFIED deployed SHA256=$hash and API login-policy endpoint"
} finally {
  if ($serial.IsOpen) { $serial.Close() }
  $serial.Dispose()
  $listener.Close()
  Remove-NetFirewallRule -DisplayName $rule -ErrorAction SilentlyContinue
  Stop-Transcript | Out-Null
}