# Redis connectivity probe (no secrets printed)
$ErrorActionPreference = 'Continue'
Get-Content 'E:\wwwroot\.env' | ForEach-Object {
  $line = $_.Trim()
  if (-not $line -or $line.StartsWith('#')) { return }
  $i = $line.IndexOf('=')
  if ($i -lt 1) { return }
  $k = $line.Substring(0, $i).Trim()
  $v = $line.Substring($i + 1).Trim().Trim('"')
  if ($k -match 'REDIS|YTD_REDIS') {
    if ($k -match 'PASSWORD|URL') {
      Write-Output ("$k len=" + $v.Length + " has_at=" + ($v -match '@'))
    } else {
      Write-Output ("$k=$v")
    }
  }
}

Write-Output '=== local 6379 ==='
$c = Get-NetTCPConnection -LocalPort 6379 -State Listen -EA SilentlyContinue | Select-Object -First 1
if ($c) { "127.0.0.1:6379 LISTEN pid=$($c.OwningProcess)" } else { 'local 6379 down' }

$redisCli = @(
  'C:\yutongda\tools\Redis\redis-cli.exe',
  'C:\Program Files\Redis\redis-cli.exe',
  'E:\wwwroot\tools\redis-cli.exe'
) | Where-Object { Test-Path $_ } | Select-Object -First 1

Write-Output ("redis-cli=" + $redisCli)

# try ping local without auth
if ($redisCli) {
  & $redisCli -h 127.0.0.1 -p 6379 PING 2>&1 | ForEach-Object { "local_nopass: $_" }
}

# try data host from env if present
$hostLine = (Get-Content 'E:\wwwroot\.env' | Where-Object { $_ -match '^YTD_REDIS_HOST=' } | Select-Object -First 1)
if ($hostLine) {
  $rh = $hostLine.Split('=',2)[1].Trim().Trim('"')
  Write-Output ("env_host=$rh")
  if ($redisCli -and $rh -and $rh -ne '127.0.0.1') {
    & $redisCli -h $rh -p 6379 PING 2>&1 | ForEach-Object { "remote_nopass: $_" }
  }
}
Write-Output 'REDIS_PROBE_DONE'