$ErrorActionPreference = 'Stop'
$project = Split-Path -Parent $PSScriptRoot
Start-Transcript -Path (Join-Path $project 'runtime/replacement-default-port-transfer.log') -Force | Out-Null
$assets = @{}
$hashes = @{}
$assets['/api'] = Join-Path $project 'final-build/backend/tera-clone-demo-api'
$assets['/web'] = Join-Path $project 'final-build/frontend/tera-clone-demo-web'
$assets['/timed'] = Join-Path $project 'final-build/backend/tera-timed'
$assets['/alarmd'] = Join-Path $project 'final-build/backend/tera-clone-demo-alarmd'
$assets['/seriald'] = Join-Path $project 'final-build/backend/tera-seriald'
$assets['/logd'] = Join-Path $project 'final-build/backend/tera-logd'
$assets['/netd'] = Join-Path $project 'final-build/backend/tera-netd'
$assets['/sessiond'] = Join-Path $project 'final-build/backend/tera-sessiond'
foreach ($key in $assets.Keys) { $hashes[$key] = (Get-FileHash -LiteralPath $assets[$key] -Algorithm SHA256).Hash.ToLowerInvariant() }
$script = @'
#!/bin/sh
set -eu
stage=/tmp/tera-replacement-default-port
mkdir -p "$stage"
wget -q -T 25 -O "$stage/api" http://192.168.0.100:9001/api
echo '__APIHASH__  '"$stage/api" | sha256sum -c -
wget -q -T 25 -O "$stage/web" http://192.168.0.100:9001/web
echo '__WEBHASH__  '"$stage/web" | sha256sum -c -
wget -q -T 25 -O "$stage/timed" http://192.168.0.100:9001/timed
echo '__TIMEDHASH__  '"$stage/timed" | sha256sum -c -
wget -q -T 25 -O "$stage/alarmd" http://192.168.0.100:9001/alarmd
echo '__ALARMDHASH__  '"$stage/alarmd" | sha256sum -c -
wget -q -T 25 -O "$stage/seriald" http://192.168.0.100:9001/seriald
echo '__SERIALDHASH__  '"$stage/seriald" | sha256sum -c -
wget -q -T 25 -O "$stage/logd" http://192.168.0.100:9001/logd
echo '__LOGDHASH__  '"$stage/logd" | sha256sum -c -
wget -q -T 25 -O "$stage/netd" http://192.168.0.100:9001/netd
echo '__NETDHASH__  '"$stage/netd" | sha256sum -c -
wget -q -T 25 -O "$stage/sessiond" http://192.168.0.100:9001/sessiond
echo '__SESSIONDHASH__  '"$stage/sessiond" | sha256sum -c -
backup=/userdata/tera-backups/replacement-default-port-$(date +%Y%m%d-%H%M%S)
mkdir -p "$backup"
cp -p /etc/tera/teraweb.env "$backup/teraweb.env"
echo "BACKUP=$backup"
cp -p /usr/bin/tera-api "$backup/api"
cp "$stage/api" /usr/bin/tera-api.next
chmod 0755 /usr/bin/tera-api.next
cp -p /usr/bin/tera-clone-demo-web "$backup/web"
cp "$stage/web" /usr/bin/tera-clone-demo-web.next
chmod 0755 /usr/bin/tera-clone-demo-web.next
cp -p /usr/bin/tera-timed "$backup/timed"
cp "$stage/timed" /usr/bin/tera-timed.next
chmod 0755 /usr/bin/tera-timed.next
cp -p /usr/bin/tera-alarmd "$backup/alarmd"
cp "$stage/alarmd" /usr/bin/tera-alarmd.next
chmod 0755 /usr/bin/tera-alarmd.next
cp -p /usr/bin/tera-seriald "$backup/seriald"
cp "$stage/seriald" /usr/bin/tera-seriald.next
chmod 0755 /usr/bin/tera-seriald.next
cp -p /usr/bin/tera-logd "$backup/logd"
cp "$stage/logd" /usr/bin/tera-logd.next
chmod 0755 /usr/bin/tera-logd.next
cp -p /usr/bin/tera-netd "$backup/netd"
cp "$stage/netd" /usr/bin/tera-netd.next
chmod 0755 /usr/bin/tera-netd.next
cp -p /usr/bin/tera-sessiond "$backup/sessiond"
cp "$stage/sessiond" /usr/bin/tera-sessiond.next
chmod 0755 /usr/bin/tera-sessiond.next
rollback() {
 trap - EXIT
 /etc/init.d/S61teraweb stop || true
 /etc/init.d/S55tera-sessiond stop || true
 /etc/init.d/S50tera-api stop || true
 /etc/init.d/S40tera-seriald stop || true
 /etc/init.d/S47tera-alarmd stop || true
 /etc/init.d/S43tera-netd stop || true
 /etc/init.d/S45tera-timed stop || true
 /etc/init.d/S44tera-logd stop || true
 sleep 2
 cp "$backup/api" /usr/bin/tera-api.restore
 chmod 0755 /usr/bin/tera-api.restore
 mv /usr/bin/tera-api.restore /usr/bin/tera-api
 cp "$backup/web" /usr/bin/tera-clone-demo-web.restore
 chmod 0755 /usr/bin/tera-clone-demo-web.restore
 mv /usr/bin/tera-clone-demo-web.restore /usr/bin/tera-clone-demo-web
 cp "$backup/timed" /usr/bin/tera-timed.restore
 chmod 0755 /usr/bin/tera-timed.restore
 mv /usr/bin/tera-timed.restore /usr/bin/tera-timed
 cp "$backup/alarmd" /usr/bin/tera-alarmd.restore
 chmod 0755 /usr/bin/tera-alarmd.restore
 mv /usr/bin/tera-alarmd.restore /usr/bin/tera-alarmd
 cp "$backup/seriald" /usr/bin/tera-seriald.restore
 chmod 0755 /usr/bin/tera-seriald.restore
 mv /usr/bin/tera-seriald.restore /usr/bin/tera-seriald
 cp "$backup/logd" /usr/bin/tera-logd.restore
 chmod 0755 /usr/bin/tera-logd.restore
 mv /usr/bin/tera-logd.restore /usr/bin/tera-logd
 cp "$backup/netd" /usr/bin/tera-netd.restore
 chmod 0755 /usr/bin/tera-netd.restore
 mv /usr/bin/tera-netd.restore /usr/bin/tera-netd
 /etc/init.d/S43tera-netd start || true
 /etc/init.d/S44tera-logd start || true
 /etc/init.d/S40tera-seriald start || true
 /etc/init.d/S45tera-timed start || true
 /etc/init.d/S47tera-alarmd start || true
 /etc/init.d/S50tera-api start || true
 cp "$backup/sessiond" /usr/bin/tera-sessiond.restore
 chmod 0755 /usr/bin/tera-sessiond.restore
 mv /usr/bin/tera-sessiond.restore /usr/bin/tera-sessiond
 /etc/init.d/S55tera-sessiond start || true
 /etc/init.d/S61teraweb start || true
 echo REPLACEMENT_DEFAULT_PORT_ROLLED_BACK
}
trap rollback EXIT
/etc/init.d/S55tera-sessiond stop
/etc/init.d/S43tera-netd stop
/etc/init.d/S61teraweb stop
/etc/init.d/S50tera-api stop
/etc/init.d/S40tera-seriald stop
/etc/init.d/S47tera-alarmd stop
/etc/init.d/S45tera-timed stop
/etc/init.d/S44tera-logd stop
sleep 2
mv /usr/bin/tera-netd.next /usr/bin/tera-netd
/etc/init.d/S43tera-netd start
mv /usr/bin/tera-sessiond.next /usr/bin/tera-sessiond
mv /usr/bin/tera-api.next /usr/bin/tera-api
mv /usr/bin/tera-clone-demo-web.next /usr/bin/tera-clone-demo-web
mv /usr/bin/tera-timed.next /usr/bin/tera-timed
mv /usr/bin/tera-alarmd.next /usr/bin/tera-alarmd
mv /usr/bin/tera-seriald.next /usr/bin/tera-seriald
mv /usr/bin/tera-logd.next /usr/bin/tera-logd
/etc/init.d/S44tera-logd start
/etc/init.d/S40tera-seriald start
/etc/init.d/S45tera-timed start
/etc/init.d/S47tera-alarmd start
(
 set -a
 . /etc/tera/tera-api.env
 set +a
 start-stop-daemon -S -q -b -m -p /run/tera-api.pid -c tera:tera -x /bin/sh -- -c 'exec /usr/bin/tera-api > /run/tera-api/replacement-startup.log 2>&1'
)
/etc/init.d/S55tera-sessiond start
/etc/init.d/S61teraweb start
ready=0
for n in $(seq 1 120); do
 if wget -q -T 2 -O "$stage/status" http://127.0.0.1/login/backend-status; then
  if grep -q '"ready":true' "$stage/status" && grep -q '"completed":12' "$stage/status"; then ready=1; break; fi
 fi
 if [ $((n % 15)) = 0 ]; then tail -3 /run/tera-api/replacement-startup.log; fi
 sleep 1
done
cat "$stage/status"
if [ "$ready" != 1 ]; then tail -40 /run/tera-api/replacement-startup.log; exit 1; fi
wget -q -T 3 -O "$stage/login.js" http://127.0.0.1/static/js/login.js
grep -q '/login/bootstrap-time' "$stage/login.js"
grep -q '^PORT=80$' /etc/tera/teraweb.env
sha256sum /usr/bin/tera-sessiond /usr/bin/tera-netd /usr/bin/tera-api /usr/bin/tera-clone-demo-web /usr/bin/tera-timed /usr/bin/tera-alarmd /usr/bin/tera-seriald /usr/bin/tera-logd
sync
trap - EXIT
echo REPLACEMENT_DEFAULT_PORT_DEPLOY_OK
'@
$script = $script.Replace('__APIHASH__', $hashes['/api'])
$script = $script.Replace('__WEBHASH__', $hashes['/web'])
$script = $script.Replace('__TIMEDHASH__', $hashes['/timed'])
$script = $script.Replace('__ALARMDHASH__', $hashes['/alarmd'])
$script = $script.Replace('__SERIALDHASH__', $hashes['/seriald'])
$script = $script.Replace('__LOGDHASH__', $hashes['/logd'])
$script = $script.Replace('__NETDHASH__', $hashes['/netd'])
$script = $script.Replace('__SESSIONDHASH__', $hashes['/sessiond'])
$script = $script.Replace("`r`n", "`n") + "`n"
$rule = 'TERA-replacement-default-port-' + [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 'COM4',115200,'None',8,'One'
$serial.Encoding = [Text.Encoding]::UTF8
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-replacement-default-port.sh http://192.168.0.100:9001/deploy.sh && sh /tmp/deploy-replacement-default-port.sh')
  $deadline = [DateTime]::UtcNow.AddSeconds(360)
  $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
        $route = $context.Request.Url.AbsolutePath
        if ($route -eq '/deploy.sh') { $bytes = [Text.Encoding]::UTF8.GetBytes($script) }
        elseif ($assets.ContainsKey($route)) { $bytes = [IO.File]::ReadAllBytes($assets[$route]) }
        else { $context.Response.StatusCode = 404 }
        if ($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('REPLACEMENT_DEFAULT_PORT_ROLLED_BACK')) { throw 'Readiness failed; old pair restored.' }
    if ($output.Contains('REPLACEMENT_DEFAULT_PORT_DEPLOY_OK')) { break }
    Start-Sleep -Milliseconds 100
  }
  if (-not $output.Contains('REPLACEMENT_DEFAULT_PORT_DEPLOY_OK')) { throw 'Deployment did not report success; inspect device console.' }
  foreach ($hash in $hashes.Values) { if (-not $output.Contains($hash)) { throw 'A deployed hash was not verified.' } }
  Write-Output 'VERIFIED replacement device deployment on HTTP port 80'
} finally {
  if ($serial.IsOpen) { $serial.Close() }
  $serial.Dispose()
  $listener.Close()
  Remove-NetFirewallRule -DisplayName $rule -ErrorAction SilentlyContinue
  Stop-Transcript | Out-Null
}