# Remote: publish latest admin dist + switch Nginx /jeecgboot -> 8180
# Do not touch C:\yutongda. On nginx -t failure, restore backup.
$ErrorActionPreference = 'Stop'
$IncomingZip = 'C:\Users\ytd_extdev_0903\incoming\admin-dist.zip'
$IncomingConf = 'C:\Users\ytd_extdev_0903\incoming\ai.conf.cutover-8180'
$Root = 'E:\wwwroot'
$Nginx = 'C:\nginx-1.18.0'
$NginxConf = Join-Path $Nginx 'myconf\ai.conf'
$Stamp = Get-Date -Format 'yyyyMMdd-HHmmss'
$RelId = 'admin-' + $Stamp
$RelDist = Join-Path $Root ('admin\releases\' + $RelId + '\dist')
$Current = Join-Path $Root 'admin\current'
$PtrPath = Join-Path $Root 'ops\active-release.json'

if (-not (Test-Path $IncomingZip)) { throw 'missing admin-dist.zip' }
if (-not (Test-Path $IncomingConf)) { throw 'missing ai.conf.cutover-8180' }

$ledger = Get-NetTCPConnection -LocalPort 8180 -State Listen -ErrorAction SilentlyContinue | Select-Object -First 1
if (-not $ledger) { throw 'CRITICAL: 8180 not listening' }
$agent = Get-NetTCPConnection -LocalPort 8910 -State Listen -ErrorAction SilentlyContinue | Select-Object -First 1
if (-not $agent) { throw 'CRITICAL: 8910 not listening' }
$prod = Get-NetTCPConnection -LocalPort 8080 -State Listen -ErrorAction SilentlyContinue | Select-Object -First 1
if (-not $prod) { throw 'CRITICAL: prod 8080 down' }

Write-Output '=== backup nginx ==='
$bak = $NginxConf + '.bak-before-admin-8180-' + $Stamp
Copy-Item $NginxConf $bak -Force
Write-Output ('bak=' + $bak)

Write-Output '=== install release dist ==='
New-Item -ItemType Directory -Force -Path $RelDist | Out-Null
Expand-Archive -Path $IncomingZip -DestinationPath $RelDist -Force
if (-not (Test-Path (Join-Path $RelDist 'index.html'))) {
  $inner = Get-ChildItem $RelDist -Directory | Select-Object -First 1
  if ($inner -and (Test-Path (Join-Path $inner.FullName 'index.html'))) {
    $RelDist = $inner.FullName
  }
}
if (-not (Test-Path (Join-Path $RelDist 'index.html'))) { throw 'index.html missing' }

Write-Output '=== switch admin current junction ==='
if (Test-Path $Current) {
  cmd /c ('rmdir "' + $Current + '"') | Out-Null
  if (Test-Path $Current) { Remove-Item $Current -Recurse -Force }
}
cmd /c ('mklink /J "' + $Current + '" "' + $RelDist + '"')
if (-not (Test-Path (Join-Path $Current 'index.html'))) { throw 'current index missing' }
Write-Output ('CURRENT_OK=' + $Current + ' -> ' + $RelDist)

Write-Output '=== nginx conf no BOM ==='
$bytes = [System.IO.File]::ReadAllBytes($IncomingConf)
if ($bytes.Length -ge 3 -and $bytes[0] -eq 239 -and $bytes[1] -eq 187 -and $bytes[2] -eq 191) {
  $list = New-Object System.Collections.Generic.List[byte]
  for ($i = 3; $i -lt $bytes.Length; $i++) { [void]$list.Add($bytes[$i]) }
  $bytes = $list.ToArray()
}
[System.IO.File]::WriteAllBytes($NginxConf, $bytes)

Set-Location $Nginx
& .\nginx.exe -t
if ($LASTEXITCODE -ne 0) {
  Copy-Item $bak $NginxConf -Force
  throw 'nginx -t failed, restored'
}
Get-Process nginx -ErrorAction SilentlyContinue | Stop-Process -Force -ErrorAction SilentlyContinue
Start-Sleep -Seconds 1
try {
  Start-Service Nginx1.18 -ErrorAction Stop
  Write-Output 'SERVICE_STARTED'
} catch {
  Start-Process -FilePath (Join-Path $Nginx 'nginx.exe') -WorkingDirectory $Nginx -WindowStyle Hidden
  Write-Output 'EXE_STARTED'
}
Start-Sleep -Seconds 2

New-Item -ItemType Directory -Force -Path (Join-Path $Root 'ops') | Out-Null
$prevAgentCurrent = Join-Path $Root 'agent\current'
$prevAgentHome = $null
if (Test-Path $PtrPath) {
  try {
    $old = Get-Content $PtrPath -Raw | ConvertFrom-Json
    if ($old.agentCurrent) { $prevAgentCurrent = [string]$old.agentCurrent }
    if ($old.agentHome) { $prevAgentHome = [string]$old.agentHome }
  } catch {}
}
$ptr = @{
  root = $Root
  releaseId = $RelId
  adminRelease = $RelDist
  adminCurrent = $Current
  agentCurrent = $prevAgentCurrent
  agentHome = $prevAgentHome
  nginxBak = $bak
  jeecgbootProxy = 'http://127.0.0.1:8180/jeecgboot/'
  updatedAt = (Get-Date).ToString('o')
  note = 'admin cutover to Jeecg Vue + ledger 8180'
}
($ptr | ConvertTo-Json) | Out-File -FilePath $PtrPath -Encoding utf8

Write-Output '=== smoke ==='
try {
  $h = Invoke-WebRequest -Uri 'http://127.0.0.1:8180/jeecgboot/sys/randomImage/cutover' -UseBasicParsing -TimeoutSec 8
  Write-Output ('ledger=' + $h.StatusCode)
} catch {
  Write-Output ('ledger_fail=' + $_.Exception.Message)
}
Write-Output 'ADMIN_CUTOVER_OK'