$ErrorActionPreference = 'Stop'

Set-Location -Path $PSScriptRoot
$pidFile = Join-Path $PSScriptRoot 'ouptsw/wechat_algorithm_live.pid'

if (-not (Test-Path $pidFile)) {
  Write-Host 'WeChat algorithm live monitor is not running: pid file missing'
  exit 0
}

$pidText = (Get-Content $pidFile -Raw).Trim()
if (-not $pidText) {
  Remove-Item $pidFile -Force -ErrorAction SilentlyContinue
  Write-Host 'WeChat algorithm live monitor is not running: pid file empty'
  exit 0
}

$process = Get-Process -Id ([int]$pidText) -ErrorAction SilentlyContinue
if ($process) {
  Stop-Process -Id $process.Id -Force
  Write-Host "WeChat algorithm live monitor stopped: pid=$pidText"
} else {
  Write-Host "WeChat algorithm live monitor is not running: pid=$pidText"
}

Remove-Item $pidFile -Force -ErrorAction SilentlyContinue